Rohde and Schwarz CMU200v10 Operations Guide

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Operating Manual

Universal Radio Communication Tester

R&S CMU 200

1100.0008.02/53

R&S CMU 300

1100.0008.03

Printed in Germany

Test and Measurement Division

1100.4984.12-01 1

R&S

is a registered trademark of Rohde & Schwarz GmbH & Co. KG.

Trade names are trademarks of the owners.

R&S CMU Tabbed Divider Overview

Tabbed Divider Overview

Safety Instructions

Tabbed Divider

1 Chapter 1: Putting into Operation

2 Chapter 2: Getting Started

3 Chapter 3: Operation

4 Chapter 4: Functional Description

5 Chapter 5: Remote Control – Basics

6 Chapter 6: Remote Control – Commands

7 Chapter 7: Remote Control – Program Examples

8 Chapter 8: Maintenance and Hardware Interfaces

9 Chapter 9: Error Messages

10 Index

1100.4984.12 RE E-1

R&S® CMU What’s New

What's new in this Revision...

This operating manual desc ribes version V3.60 and higher of the CMU base software including RF and Audio measurements and the IQ-IF interface. Compared to previous versions , this new firmware pro-

vides numerous extensions and improvements. The most important new features described in this manual are listed below.

New Features Description Refer to...

Remote service tool Software utility for file transfer, firmware installation and remote

Freq. dependent attenuation

Extended selftests Selftests for new hardware component s added Chapter 4,

Task priority management

Remote debug mode Special test m ode for remote control scri pts. Chapter 5,

Screen saver Configurable screen save time. Chapter 4,

control of the R&S CMU.

Frequency-dependent input and output attenuat i on f actors can be defined for function group RF and several network options.

Measurements and generators can be defined as being persistent or releasable.

Chapter 1, → Remote Service Tool

Chapter 4, RF Measurements

→ Frequency Dep. Attenuation

→ Maintenance

Chapter 5,

→ Task Priority Management

→ Setup – Remote

→ Setup – Misc.

Frequently Used Abbreviations

Att. Attenuation Cnt Center Ext. External Freq. Frequency GPIB General Purpose Interface Bus = I EEE Bus according to s t andard

IF Intermediate Frequency Max. Maximum (Level) Pk Peak RBW Resolution Bandwidth Ref. Reference Rel. Relative RF Radio Frequency SSB Single Side Band SW Software

IEC 625.1/IEEE 488. 1

1100.4984.12 0.1 E-1

Supplement to the Operating Manual

R&S

New Features in Firmware V3.80 (TCP/IP, Selftests, Aux TX, I/Q Recorder)

TCP/IP Settings....................................................................................................................................1

Remote Control: TCPIp...............................................................................................................5

New Selftests.....................................................................................................................................11

Improved AuxTx Signal.....................................................................................................................12

Signal Configuration..................................................................................................................12

RF Connector Settings..............................................................................................................14

Remote Control: AUXTx ...........................................................................................................15

Frequency-Dependent Attenuation .................................................................................................16

I/Q Recorder.......................................................................................................................................17

Measurement Control................................................................................................................17

CMU 200/300

Test Configuration.....................................................................................................................19

Subarray Configuration.............................................................................................................22

ASCII Results – Subsystem IQRecorder:ARRay......................................................................23

Measured Subarrays – Subsystem IQRecorder:SUBarray.......................................................26

Binary Results – Subsystem IQRecorder:BINary:ARRay.........................................................29

TCP/IP Settings

In the new TCP/IP tab of the Setup menu, it is pos sible to configure the R&S CMU with the IP address information necessary for communicating with other hosts and applications through an IP network:

• The CMU-B21 section provides the IP address information f or the Universal Signalling Unit CMU- B21 V14, to be used for GSM and WCDMA UE data application tests. For detailed information refer to the operating manuals for WCDMA UE Tests (R&S CMU-K61, …, K69), for the WCDMA Message Analyzer and Recorder (R&S CMU-Z46), and for (E)GPRS Application Testing (R&S CMU-K92).

• The CMU-B83 section provides the IP address information f or the Universal Signalling Unit CMU- B83, to be used for CDMA2000 data application tests. For detailed information refer to the operating manuals for CDMA200 Mobile Tests (R&S CMU-K83, …, K87) and for the Message Monitor for CDMA2000 Signalling Unit (R&S CMU-B87).

Attention! If you choose static TCP/IP addressing, contact your network administrator to obtain a valid

IP address. Connection errors can affect the entire network.

The TCP/IP information is not changed after a reset (*RST) of the instrument. The default

values (factory settings) can be restored using the Default Settings switches.

TCP/IP settings are available for R&S CMU200 instruments only.

1100.4984.12 S.1 V3.80_E-1

TCP/IP Settings R&S CMU 200

SETUP

Fig. 1 Setup – TCP/IP menu To avoid a m ix up of the two addr ess blocks, a popup m enu is opened when one of the addresses is

changed. The popup m enu c ontains the (s tatic ) addr ess es f or a single s ignalling unit; they are closed by pressing the SETUP key again.

The following static address information is assigned to the CMU-B21 signalling unit:

CMU-B21 – Default Settings

Remote

Control

CMU-B21 – Static

Remote

Control

The following address information is assigned to the CMU-B83 signalling unit:

CMU-B83 – Default Settings

CMU-B83 – Type of CMU IP Addressing

Restores the default IP addresses for R&S CMU-B21 shown in the figure above. The values are also quoted in the com mand des cription. A reset does not affec t the IP addresses.

SYSTem:TCPip:PRIMary:DEFault ON | OFF

IP addresses for the R&S CMU, to be used for GSM and WCDMA UE data application tests.

IP Address IP address of the CMU Subnet Mask Subnet mask address of the CMU Default Gateway Address used to configure a default route in the CMU

SYSTem:TCPip:PRIMary:STATic:IPADdress <IP1>, <IP2>, <IP3>, <IP4> SYSTem:TCPip:PRIMary:STATic:SMASk <SM1>, <SM2>, <SM3>, <SM4> SYSTem:TCPip:PRIMary:STATic:DGATeway <GW1>, <GW2>, <GW3>, <GW4>

Restores the default IP addresses for R&S CMU-B83 shown in the figure above. The values are also quoted in the com mand description in Chapter 6. A reset does not affect the IP addresses.

Remote control

SYSTem:TCPip:SECondary:DEFault ON | OFF

Depending on the network capacities and the us er pref er enc es, the TCP/IP address information for the R&S CMU-B83 can be configured in two different ways:

Static Manual setting of the addresses in the Static TCP/IP address

subsection. This option m ust be s elected if the network does not

1100.4984.12 S.2 V3.80_E-1

R&S CMU 200 TCP/IP Settings

support dynamic TCP/IP configuration using the Dynamic Host Configuration Protocol (DHCP).

Dynamic Automatic assignm ent of all nec essary addresses (including the

MS PPP IP and BS PPP IP addresses dis played in the Service Config. tab of the Connection Control m enu for the CDMA2000 function groups; see Chapter 8 of the CDMA200 operating manual) using a definite CMU hostname and DHCP (dynamic TCP/IP configuration). See desc ription of the Dynamic subsection below.

Dynamic (Retry)? Repeat the dynamic addressing procedure. This message is

displayed after a failed attempt to use dynamic addressing. Possible error scenarios are listed in Table 1 below.

CMU-B83 – Static

Remote

CMU-B83 – Dynamic

Control

Remote control

SYSTem:TCPip:SECondary:MODE STATic | DYNamic (| PENDing | UDEF) SYSTem:TCPip:SECondary:FCODE?

Sets the IP addresses to be used if Static CMU IP addressing is selected: IP Address IP address of the CMU Subnet Mask Subnet Mask address of the CMU Default Gateway Address used to configure a default route in the CMU

SYSTem:TCPip:SECondary:STATic:IPADdress <IP1>, <IP2>, <IP3>, <IP4> SYSTem:TCPip:SECondary:STATic:SMASk <SM1>, <SM2>, <SM3>, <SM4> SYSTem:TCPip:SECondary:STATic:DGATeway <GW1>, <GW2>, <GW3>, <GW4>

Sets the CMU hostnam e and dis plays the IP addresses obtained f r om the network if Dynamic CMU IP addressing is selected. To establish a dynamic IP connection proceed as follows:

Remote

Control

1. In the Dynamic subsection, enter the CMU Hostname you wish to assign to the CMU.

2. Select dynamic Type of CMU IP Addressing.

During the IP address acquisition phase, the CMU hostname is r egistered with the DHCP server and the CMU displays the message DHCP Procedure Pending. This operation may take several seconds to complete depending on network traffic, DHCP server congestion, etc. W hen the DHCP procedure completes, the acquired addresses are be displayed in the Dynamic TCP/IP address subsection. If dynamic TCP/IP configuration f ails , the R&S CMU dis plays one of the f ailure messages listed in Table 1 below and the Ethernet interface is disabled.

Note: When the DHCP s erver on the network is running Windows Server, the

DNS is not properly notified of the CMU hostname. In order to identify the CMU by its hostname, it will be necessary to add the hostname, along with the IP address obtained from DHCP and displayed on the CMU, to the DNS table. This must be done whenever the CMU is rebooted and thus obtains a new address via DHCP. If the CMU is not added to the DNS table, the instrument mus t be identified only by its IP address.

SYSTem:TCPip:SECondary:DYNamic:HNAMe SYSTem:TCPip:SECondary:DYNamic:DNS? SYSTem:TCPip:SECondary:DYNamic:IPADdress? SYSTem:TCPip:SECondary:DYNamic:SMASk? SYSTem:TCPip:SECondary:DYNamic:DGATeway?

1100.4984.12 S.3 V3.80_E-1

TCP/IP Settings R&S CMU 200

DHCP Failure The R&S CMU contacts the DHCP server during the following scenarios:

• At R&S CMU initialization (if Type of CMU IP Addressing is set to Dynamic).

• At run-time when the user changes the Type of CMU IP Addressing from Static

to Dynamic.

• At run-time when the lease has expired. The DHCP client is required to renew

its lease with the DHCP server when the lease duration has expired.

The DHCP procedure may fail for a number of reasons. Possible failure scenarios and error messages in the Type of CMU IP Addressing field are listed in Table 1

below. In case of a failure the Dynamic parameter field and a yellow notice box

show DHPC Failure – External Ethernet IP connection is now disabled.

Remote Control

Whenever a DHCP f ailure condition is detected, the R&S CMU takes the following actions:

• The CMU200 Ethernet interface is disabled.

• Bit no. 14 of the STATus:OPERation register f or the R&S CMU base system

and bit no. 1 of the extended STATus:OPERation register for the CDMA2000 function groups is set (see Chapter 5 of the CMU 200/300 manual and the CDMA2000 operating manual).

By disabling the Ethernet interface, the CMU200 will not be able to com municate with any remote host.

• Dynamic CMU IP Address is set to “169.254.X.X” (where X.X is derived from

the serial number of the CMU200).

• Dynamic CMU Subnet Mask is set to “255.255.0.0”.

• Dynamic CMU Default Gateway address is removed.

• Dynamic MS and BS PPP IP Addresses (see Chapter 8 of the CDMA2000 op-

erating manual) are set to the static MS and BS PPP IP Address values.

By maintaining these PPP IP Addresses, the CMU200 will still be able to establish SO33 data calls to a CDMA2000 mobile station. O nly the internal FTP s erver can be used to transfer data to/from the mobile since no outside communication is possible.

SYSTem:TCPip:SECondary:FCODE?

1100.4984.12 S.4 V3.80_E-1

R&S CMU 200 TCP/IP Settings

Table 1 DHCP Failure Scenarios, error messages and error codes

Message in Type of CMU IP Addressing

Dyn. Event Failed –1 The DHCP Server failed to

No Target IP Allocated –2 The DHCP Server failed to

Interface Down –3 The CMU200 Ethernet Inter-

No Router IP Allocated –4 The DHCP Server failed to

Mobile Home IP Addr. –5 The DHCP Server failed to

Bind Failure –6 The CMU200 failed to initial-

Error code

CONF:TCP:SEC:FCOD?

Failure reason P ossi ble cause

respond or rejected the DHCP request.

allocate the Target (CMU200) IP Address.

face is disabled.

allocate the Router/Gateway IP Address.

allocate the BS and MS PPP IP Addresses.

ize the DHCP client soft ware.

• CMU200 ethernet cable not properly connected to LAN

• DHCP server unavailable

• CMU200 ethernet cable not properly

connected to LAN

• DHCP server unavailable

CMU200 ethernet cable not properly connected to LAN

DHCP server not configured to support TAG 3 (router). See RFC 2132 for more details.

• DHCP server not configured to support TAG 68 (mobile IP home agent). See RFC 2132 for more details.

• DHCP server not configured to return 2

IP Addresses in TAG 68 (mobile IP home agent). See RFC 2132 for more details.

Internal CMU200 DHCP software initial i zation problem.

Remote Control: TCPIp

The comm ands in this section configure the R&S CMU with the IP address inform ation necessary for communicating with other hosts and applications through an IP network. The c omm ands correspond to the TCP/IP tab of the Connection Control menu.

The TCP/IP information is not changed after a reset (*RST ) of the instrument. The default v al-

ues (factory settings) can be restored using SYSTem:TCPip:PRIMary:DEFault ON or SYSTem:TCPip:SECondary:DEFault ON.

SYSTem:TCPip:PRIMary:DEFault <Enable> Default Settings

ON | OFF

Command descripti on

If used as a setting command with the parameter ON, this command sets all parameters of the TCP/IP addressing commands for the signalling unit R&S CMU-B21 V14 to their default values (the setting OFF results in an error message). If used as a query, the command returns whether all parameters are set to their default values (ON) or not (OFF).

Description of paramet ers Def. value Def. unit FW vers.

The parameters are set to their default values (factory settings) Some or all parameters differ from their default values

– V3.80

1100.4984.12 S.5 V3.80_E-1

TCP/IP Settings R&S CMU 200

CONFigure:TCPip:PRIMary:STATic:IPADdress Static IP Address <IP Address 1>, <IP Address 2>, <IP Address 3>, <IP Address 4>

0 to 255, First segment of IP address 192 – V3.80

0 to 255, Second segment of IP address 168 – V3.80

0 to 255, Third segment of IP address 168 – V3.80

0 to 255 Fourth segment of IP address 170 – V3.80

Command descripti on

This command sets the static IP address of the signalling unit R&S CMU-B21 V14.

CONFigure:TCPip:PRIMary:STATic:SMASk Static Subnet Mask <Subnet Mask 1>, <Subnet Mask 2>, <Subnet Mask 3>, <Subnet Mask 4>

0 to 255, First segment of subnet mask 255 – V3.80

0 to 255, Second segment of subnet mask 255 – V3.80

0 to 255, Third segment of subnet mask 0 – V3.80

0 to 255 Fourth segment of subnet mask 0 – V3.80

Command descripti on

This command sets the static subnet mask of the signalling unit R&S CMU-B21 V14.

CONFigure:TCPip:PRIMary:STATic:DGATeway Static Default Gateway <Gateway 1>, <Gateway 2>, <Gate way 3>, <Gateway 4>

0 to 255, First segment of default gateway 192 – V3.80

0 to 255, Second segment of default gateway 168 – V3.80

0 to 255, Third segment of default gateway 0 – V3.80

0 to 255 Fourth segment of default gateway 1 – V3.80

Command descripti on

This command sets the static default gateway of the signalling unit R&S CMU-B21 V14.

Description of paramet ers Def. value Def. unit FW vers.

1100.4984.12 S.6 V3.80_E-1

R&S CMU 200 TCP/IP Settings

The TCP/IP addr ess es for R&S CMU-B83 (SYST em:TCPip:SECondar y …) c annot be c hanged

while a CDMA2000 packet data connection is active (see CONFigure:SCONfig:

SCLass:SERVice PDAT in the CDMA2000 operating manual). See also description of CONFigure:TCPip:SECondary:MODE below.

SYSTem:TCPip:SECondary:DEFault <Enable> Default Settings

ON | OFF

Command descripti on

If used as a setting command with the parameter ON, this command sets all parameters of the TCP/IP addressing commands for the signalling unit R&S CMU-B83 to their default values (the setting OFF results in an error message). If used as a query, the command returns whether all parameters are set to their default values (ON) or not (OFF).

CONFigure:TCPip:SECondary:MODE <Mode> Type of CMU IP Addressing

<Mode>, settings

STAT | DYN

<Mode>, query

STAT | DYN | PEND |

UDEF

Command descripti on

This command specifies whether the IP address information is assigned manually or automatically. The command can also be used to query the DHCP Procedure Pending and IP Connection Undefined states.

Description of paramet ers Def. value Def. unit FW vers.

The parameters are set to their default values (factory settings) Some or all parameters differ from their default values

Description of paramet ers Def. value Def. unit FW vers.

Manual assignment of IP address

– V3.80

STATic – V3.80

Automatic assignment u sing DHCP

Description of paramet ers Def. value Def. unit FW vers.

Manual or automatic assignment

STATic – V3.80 DHCP Procedure Pending, no change of IP addressing mode possible DHCP Failure (IP Connection Undefined); bit 14 of the event status register is set.

The type of IP addressing is not changed after a *RST. The following error messages may be generated: –221,"Setting conflict" The IP addressing mode is changed while packet data is active.

–213,"Init ignored" The IP addressing mode is changed while the DCHP procedure is pending.

CONFigure:TCPip:SECondary:STATic:IPADdress Static IP Address <IP Address 1>, <IP Address 2>, <IP Address 3>, <IP Address 4>

Description of paramet ers Def. value Def. unit FW vers.

0 to 255, First segment of IP address 192 – V3.80

Description of paramet ers Def. value Def. unit FW vers.

0 to 255, Second segment of IP address 168 – V3.80

Description of paramet ers Def. value Def. unit FW vers.

0 to 255, Third segment of IP address – – V3.80

Description of paramet ers Def. value Def. unit FW vers.

0 to 255 Fourth segment of IP address – – V3.80

Command descripti on

This command sets the static IP address of the CMU. The factory setting for the address depends on the CMU serial number.

1100.4984.12 S.7 V3.80_E-1

TCP/IP Settings R&S CMU 200

CONFigure:TCPip:SECondary:STATic:SMASk Static Subnet Mask <Subnet Mask 1>, <Subnet Mask 2>, <Subnet Mask 3>, <Subnet Mask 4>

0 to 255, First segment of subnet mask 255 – V3.80

0 to 255, Second segment of subnet mask 255 – V3.80

0 to 255, Third segment of subnet mask 0 – V3.80

0 to 255 Fourth segment of subnet mask 0 – V3.80

Command descripti on

This command sets the static subnet mask of the CMU.

CONFigure:TCPip:SECondary:STATic:DGATeway Static Default Gateway <Gateway 1>, <Gateway 2>, <Gate way 3>, <Gateway 4>

0 to 255, First segment of default gateway 192 – V3.80

0 to 255, Second segment of default gateway 168 – V3.80

0 to 255, Third segment of default gateway 0 – V3.80

0 to 255 Fourth segment of default gateway 1 – V3.80

Command descripti on

This command sets the static default gateway of the CMU.

CONFigure:TCPip:SECondary:DYNamic:HNAMe <Name> Dynamic Addressing: Host name

<Name>

‘<max. 32 characters>’ Hostname assigned to the CMU, string variable ‘CMU200’ – V3.80

Command descripti on

This command sets the hostname that is assigned to the CMU and transferred to the DHCP server if dynamic IP addressing is selected (CONFigure:TCPip:SECondary:DYNamic:IPADdress:MODE DYNamic).

Description of paramet ers Def. value Def. unit FW vers.

1100.4984.12 S.8 V3.80_E-1

R&S CMU 200 TCP/IP Settings

[SENSe:]IPADdress:FCODe? Dynamic Addressing: Failure Code

Response

0 | –1 | –2 | –3 | –4 | –5 | –6 |

Command descripti on

This command is always a query and returns the possible cause for an error during dynamic allocation of the CMU’s IP address. The response is 0 unless dynamic IP address allocation failed (in which case the query CON- Figure:TCPip:SECondary:DYNamic:IPADdress:MODE? returns UDEF).

CONFigure:TCPip:SECondary:DYNamic:DNS? Dynamic Domain Name Server <DNS 1>, <DNS 2>, <DNS 3>, <DNS 4>

0 to 255, First segment of DNS INV – V3.80

0 to 255, Second segment of DNS INV – V3.80

0 to 255, Third segment of DNS INV – V3.80

0 to 255 Fourth segment of DNS INV – V3.80

Command descripti on

This command is always a query and returns the dynamically acquired CMU Domain Name Server.

CONFigure:TCPip:SECondary:DYNamic:IPADdress? Dynamic IP Address <IP Address 1>, <IP Address 2>, <IP Address 3>, <IP Address 4>

0 to 255, First segment of IP address INV – V3.80

0 to 255, Second segment of IP address INV – V3.80

0 to 255, Third segment of IP address INV – V3.80

0 to 255 Fourth segment of IP address INV – V3.80

Command descripti on

This command is always a query and returns the dynamically acquired IP address of the CMU.

Description of paramet ers Def. value Def. unit FW vers.

No error

0 – V3.80 Dyn. Event Failed No Target IP Allocated Interface Down No Router IP Allocated Mobile Home IP Addr. Bind Failure

Description of paramet ers Def. value Def. unit FW vers.

1100.4984.12 S.9 V3.80_E-1

TCP/IP Settings R&S CMU 200

CONFigure:TCPip:SECondary:DYNamic:SMASk? Dynamic Subnet Mask <Subnet Mask 1>, <Subnet Mask 2>, <Subnet Mask 3>, <Subnet Mask 4>

0 to 255, First segment of subnet mask INV – V3.80

0 to 255, Second segment of subnet mask INV – V3.80

0 to 255, Third segment of subnet mask INV – V3.80

0 to 255 Fourth segment of subnet mask INV – V3.80

Command descripti on

This command is always a query and returns the dynamically acquired subnet mask of the CMU.

CONFigure:TCPip:SECondary:DYNamic:DGATeway? Dynamic Default Gateway <Gateway 1>, <Gateway 2>, <Gate way 3>, <Gateway 4>

0 to 255, First segment of default gateway INV – V3.80

0 to 255, Second segment of default gateway INV – V3.80

0 to 255, Third segment of default gateway INV – V3.80

0 to 255 Fourth segment of default gateway INV – V3.80

Command descripti on

This command is always a query and returns the dynamically acquired default gateway of the CMU.

Description of paramet ers Def. value Def. unit FW vers. Description of paramet ers Def. value Def. unit FW vers.

Description of paramet ers Def. value Def. unit FW vers.

1100.4984.12 S.10 V3.80_E-1

R&S CMU 200 New Selftests

New Selftests

In the Maintenance menu, a number of new selftests have been added.

Menu SelectMenu Select

Fig. 2 Selftest – Maintenance menu

Select

The Select softkey selects the type of selftest or correction procedure to be performed. The following new selftests are available with firmware version V3.80:

B83 Selftest Reloads the firmware for CMU-B83 including CMU-B88 (if

Internal Aux Tx Loop Path 1/2 Same as Internal RF Loop Test, but for the (low-level) Aux Tx

Internal Aux TxW Loop Path 1/2 Same as Internal RF Loop Test, but for the Overrange Aux T x

Hardware Data Verification Performs a plausibility check for the EEPROM data of all

Settling Time Cal. Determines the settling times for RX and TX signals that the

available) and reboots the system.

signal (option R&S CMU-B95 for path 1, option R&S CMU-B96 for path 1 or path 2). The overrange signals of option CMUB96 are tested separately using the Internal Aux TxW Loop Path 1/2 tests.

signal associated with path 1 or path 2 (option CMU-B96). T he low-level Aux Tx signals of option CMU-B96 are tested separately using the Internal Aux Tx Loop Path 1/2 tests. The Aux TxW tests can not be performed if option CMU-B95 is fitted instead of option CMU-B96.

installed hardware modules.

instrument requires af ter a change to a frequency band above

1.2 GHz. The obtained value is stored and applied in order to avoid measurement inac curacies. A settling time calibration is relevant for RXTX board versions with TAZ ≤ 10.00 only.

1100.4984.12 S.11 V3.80_E-1

Improved AuxTx Signal R&S CMU 200

Improved AuxTx Signal for RF Measurements (Option R&S CMU-B96)

With option CMU-B96, Additional RF Generator, the CMU provides three additional AuxTx signals:

• Two low-level signals Path 1 and Path 2 can be configured with different f requencies and levels. When it is switched on the AuxTx generator activates one of the preconfigured low-level signals.

• An additional Overrange signal at the frequency of the active low-level AuxT x signal but with possi- bly higher level can be generated together with the low-level signal. If it not needed, this signal can be switched off.

It is possible to superimpos e AuxTx and T x signals and to assign independent external attenuation factors.

AuxTx is generated with the modulation settings of the primary Tx signal (in remote control: ...RFGenerator:MODulation...) but with no frequency hopping or ramping. Options R&S CMUB95/B96 extend the functionality of the GSM-MS and WCDMA UE measurements, see operating manuals for options R&S CMU-K20/…/K24 and for options R&S CMU-K61/…/-K69.

The Aux Tx signals are not compatible with FM modulation. The Aux Tx generator is

switched off when the modulation mode is set to FM. It remains in the O ff state even when FM modulation is deactivated.

Options R&S CMU-B95 and R&S CMU-B96 are available for R&S CMU200 instruments

only.

Signal Configuration

The AuxTx signals are configured in the Generator tab of the Connection Control menu.

Fig. 3 Connection Control – RF generator settings (table)

1100.4984.12 S.12 V3.80_E-1

R&S CMU 200 Improved AuxTx Signal

Generator Control

Path Selection

Remote control

RF Level

AuxTx Levels Option R&S CMU-B95 provides a single AuxTx signal at a definite f requency and

Remote control

Frequency

Generator Control controls the AuxTx RF generator and indicates its operating state (ON | OFF).

Remote Control

INITiate:RFGenerator:AUXTx ABORt:RFGenerator:AUXTx FETCh:RFGenerator:AUXTx:STATus?

Selects one of the (low-level) signals c onfigured in the Path 1 or Path 2 sections. In addition the Overrange signal can be generated at the frequency of the selected low-level signal.

SOURCe:RFGenerator[:TX]:PATH P1 | P2

RF Level defines the total level of the generated RF signals in dBm. The value range depends on the selected RF output (RF 1, RF 2 or RF 3 OUT).

level. Option R&S CMU-B96 provides two configurable low-level signals plus an additonal overrange signal.

Note: Superimposing the Overrange signal with the Tx signal at the same

output connector can impair the Tx level accuracy. Refer to the data sheet for option R&S CMU-B96 for details.

SOURce:RFGenerator:AUXTx:LEVel <Level>

Frequency defines the frequency of the generated RF signals. Note: The frequency of the Aux Tx signals is restriced to several distinct

ranges. The two signal paths of option R&S CMU-B96 have different frequency ranges; see remote control description. The Overrange signal is always at the frequency of the active low-level signal.

Remote control

SOURCe:RFGenerator:AUXTx:FREQuency <Frequency>

1100.4984.12 S.13 V3.80_E-1

Improved AuxTx Signal R&S CMU 200

RF Connector Settings

The output connectors for the AuxTx signals and the external attenuations are selected in the RF tab of the Connection Control menu.

Fig. 4 Connection Control – RF generator settings (table)

Tx Aux Tx

RF AuxTx Output

Tx / Aux Tx toggles between the primary RF signal Tx and the additional signals Aux Tx, to be routed to one of the RF output connectors of the instrument.

The RF signals are independent f rom each other. It is pos sible to route the signals to different RF output connectors or superimpose them at the same connector. If Aux Tx is selected, RF Tx Output changes to RF Aux Tx Output, the RF Input softkey is replaced by Ovr. Lev. AuxTx, and Ext. Att. Input by Ext. Att. Output.

Remote control The keywords [:TX] and :AUXTX in the OUTPut:…[:STATe] commands distinguish between the Tx and the Aux Tx signal.

The RF Aux Tx Output softkey selects the output connector for Aux Tx. Aux Tx must be output at RF1 or RF2.

Remote control

OUTPut:AUXTx[:STATe] RF1 | RF2

1100.4984.12 S.14 V3.80_E-1

R&S CMU 200 Improved AuxTx Signal

Ovr. Lev. AuxTx

The Ovr. Lev. AuxTx sof tkey selects the output connector f or the Overrange signal (with option R&S CMU-B96). The selected RF output is indicated by a

symbol.

Note: The output connectors for the Overrange signal and the (low-level)

AuxTx signal are independent from each other. The following restriction holds for a combination of the Tx and the O verrange signal: While the Overrange signal is at RF 1 the Tx signal cannot be fed to RF 3 OUT and vice versa.

Superimposing the Overrange signal with the Tx signal at the same

output connector can impair the Tx level acc uracy. Refer to the data sheet for option R&S CMU-B96 for details.

An attenuation factor for the Overrange signal can be defined with the Ext. Att. Output softkey below Ovr. Lev. AuxTx.

Remote control

OUTPut:AUXTx:OLEVel[:STATe] RF1 | RF2 | RF3 [SENSe:]CORRection:LOSS:OUTPut<nr>AUXTx:OLEVel[:MAGNitude] <Loss> SOURce:CORRection:LOSS:OUTPut<nr>AUXTx:OLEVel[:MAGNitude] <Loss>

Remote Control: AUXTx

The following commands complement the AUXTx comm and described in Chapter 6 of the operating manual.

SOURce:RFGenerator:AUXTx:PATH Path Selection

Returned value

P1 | P2 Path 1 P1 – V3.80

Command descripti on

This command selects one of the low-level AuxTx signals configured via SOURce:RFGenerator:AUXTx:…:P1 or SOURce:RFGenerator:AUXTx:…:P2.

SOURce:RFGenerator:AUXTx:LEVel:P<nr> <Level> RF Level (R&S CMU-B96)

<Level>

–122 dBm to –72 dBm –110 dBm to –60 dBm

Command descripti on

This command defines the levels of the Aux Tx path 1 and path 2 (<nr> = 1, 2) signals. The level ranges and default values are identical for both paths. In contrast, the resolution for path 1 is 1 dB (all values entered are rounded to integer dBm values) whereas the resolution for path 2 is 0.1 dB.

Parameter descripti on Def. value Def. unit FW vers.

Aux Tx output level at RF 1 Aux Tx output level at RF 2

–72.0 –72.0

dBm dBm

V3.80

The level range depends on the used RF output of the CMU and the external attenuation. Moreover, in the SSB mode (see command SOURce:RFGenerator:MODulation SSB), the level ranges for all three connectors are shifted by –2 dB. The level ranges are also modified if the Tx and Aux Tx signals are both active and superimposed at the same connector or if option R&S CMU-U99 (RF 1 with RF 2 Level Range) is fitted.

1100.4984.12 S.15 V3.80_E-1

Frequency-Dependent Attenuation R&S CMU 200

SOURce:RFGenerator:AUXTx:OLEVel <Level> RF Level Overrange (R&S CMU-B96)

<Level>

–100 dBm to –27 dBm | OFF –100 dBm to –10 dBm | OFF –100 dBm to +13 dBm | OFF

Command descripti on

This command defines the level of the Overrange signal. The resolution is 1 dB (all values entered are rounded to integer dBm values). OFF switches the overrange signal off entirely.

SOURce:RFGenerator:AUXTx:FREQuency:P<nr> <Frequency> Frequency (R&S CMU-B96)

350 MHz to 550 MHz | 700 MHz to 1100 MHz | 1400 MHz to 2200 MHz

Command descripti on

This command defines the frequency of the Aux Tx path 1 and path 2 (<nr> = 1, 2) signals. The resolution is

2.5 kHz; all values entered are rounded to 2.5 kHz steps. If a value between the three distinct frequency bands is entered, the instrument generates an error message. The lowest band is available for the path 1 signal only.

OUTPut:AUXTx:OLEVel[:STATe] <State> RF Output (Overrange)

<State>

RF1 | RF2 | RF3

Command descripti on

This command determines the output connector to be used for the Overrange signal. Note that while the Overrange signal is at RF 1 the Tx signal (OUTPut[:TX][:STATe]) cannot be fed to RF 3 OUT and vice versa.

Parameter descripti on Def. value Default unit FW vers.

Connector RF1 used as output Connector RF2 used as output Connector RF3 OUT used as output

Ext. Att. Output (Overrange) [SENSe:]CORRection:LOSS:OUTPut<nr>:AUXTx:OLEVel[:MAGNitude] <Absorption> SOURce:CORRection:LOSS:OUTPut<nr>:AUXTx:OLEVel[:MAGNitude] <Absorption>

–50 dB to +90 dB Value for external attenuation at output <nr>,

Command descripti on

This command assigns an external attenuation value to the outputs of the instrument. An external attenuation of x dB increases the Aux Tx signal level (SOURce:RFGenerator:AUXTx:OLEVel) by x dB.

Parameter descripti on Def. value Default unit FW vers.

where <nr> = 1, 2, 3

Parameter descripti on Def. value Def. unit FW vers.

Overrange output level at RF 1 Overrange output level at RF 2 Overrange output level at RF 3 OUT

OFF OFF OFF

dBm dBm

V3.80

Parameter descripti on Def. value Def. unit FW vers.

Aux Tx frequency band 1 (path 1 only) Aux Tx frequency band 2 (path 1 and 2) Aux Tx frequency band 3 (path 1 and 2)

350 MHz (p.1)

700 MHz (p.2)

RF2 – V3.80

0.0

V3.80

Frequency-Dependent Attenuation

The Frequency Dependent Attenuation menu provides 50 (instead of 25) frequency values.

1100.4984.12 S.16 V3.80_E-1

R&S CMU 200 I/Q Recorder

I/Q Recorder

The I/Q Recorder (IQRecorder) provides the I/Q data that the R&S CMU200/300 acquires with different IF filter settings. After the m easurement is started, the instr ument records a predefined number of samples (CONFigure:IQRecorder:CONTrol:CLENgth). The meas urement can be s tarted explicitly (INITiate:IQRecorder, with Free Run trigger) or by an appropriate trigger source (power trigger, external trigger). The trigger settings are described on p. 6.32 ff. of the R&S CMU200/300 operating manual. A measurement-specific trigger delay can be added; see CONFig- ure:IQRecorder:CONTrol:TDELay.

Measurement results are retrieved by means of the READ:IQRecorder…, FETCh:IQRecorder…, SAMPle:IQRecorder... commands. The application provides different (complex or polar) output formats; see CONFigure:IQRecorder:RMODe. Moreover it is possible to obtain the results as comma-s eparated ASCII arrays or in binary format (keywords ARRay or BINary). Binary data transfer offers several advantages:

• The transfer is f as ter and more efficient (the size of the output str ings is typically reduced by a factor of 3 to 4).

• Binary data can be directly post-processed by many external applications without previous conversion

On the other hand, the transfer of ASCII arrays can be refined by means of subarray commands. The I/Q Recorder (IQRecorder) is a remote control application which is located in the RF function

group. There is no equivalent measurement menu in manual control. The performance of the application is improved with option R&S CMU-U65, Measurement DSP for

WCDMA; see overview below. Table 1 I/Q Recorder performance with option R&S CMU-U65

No option R&S CMU-U65V02 R&S CMU-U65V04

IF Bandwidth (see Table 2 on p. 19)

Sampling Rate (see Table 2 on p. 19)

Max. Capture Length

Max. Trigger Delay

50 kHz to 1 MHz 50 kHz to 1 MHz 50 kHz to 5 MHz

200 kHz to 4000 kHz 200 kHz to 4000 kHz 200 kHz to 10000 kHz

32768 samples 65536 samples 65536 samples

±32000 samples ±64000 samples ±64000 s amples

Measurement Control

The following commands control the measurement.

INITiate:IQRecorder Start new measurement ABORt:IQRecorder Abort running measurement and switch off STOP:IQRecorder Stop measurement after current stat. cycle

Description of com mand FW vers.

These commands have no query form. They start and stop the measurement, setting it to the status indicated in the top right column.

⇒

RUN

⇒

OFF

⇒

STOP

V3.80

1100.4984.12 S.17 V3.80_E-1

I/Q Recorder R&S CMU 200

CONFigure:IQRecorder:EREPorting <Mode> Event Reporting

<Mode>

SRQ | SOPC | SRSQ | OFF

Description of com mand

This command defines the events generated when the measurement is terminated or stopped (event reporting, see Chapter 5 of the operating manual).

FETCh:IQRecorder:STATus? Measurement Status

Ret. values

OFF | RUN | STOP | ERR | RDY,

NONE

Description of com mand

This command is always a query. It returns the status of the measurement (see Chapters 3 and 5 of the operating manual).

FETCh:IQRecorder:FSBW? Filter Characteristics

Ret. values

NYQ | GAUS, 400000 Hz to 10000000 Hz, 50000 Hz to 5000000 Hz

Description of com mand

This commands are always queries. They return the status of the measurement (see Chapters 3 and 5 of the operating manual).

Description of paramet ers Def. value Def. unit FW vers.

Service request

OFF – V3.80 Single operation complete SRQ and SOPC No reporting

Description of paramet ers Def. value Def. unit FW vers.

Measurement in the OFF state (*RST or ABORt) Running (after INITiate or READ) Stopped (STOP) OFF (could not be started) Stopped according to repetition mode and stop condition

No statistical mode set

Description of paramet ers Def. value Def. unit FW vers.

Filter type Sampling rate Filter bandwidth

OFF

NONE

NYQ 2000000 1000000

–

– Hz Hz

V3.80

1100.4984.12 S.18 V3.80_E-1

R&S CMU 200 I/Q Recorder

Table 2 I/Q recorder filter types, bandwidths, and filter types

Filter Type Bandwidth / kHz Sampling Rate / kHz Required Option

Gauss

Nyquist

(roll off = 0.5)

50 400 No option, CMU-U65V02, CMU-U65V04 100 800 No option, CMU-U65V02, CMU-U65V04 200 2000 No option, CMU-U65V02, CMU-U65V04 300 4000 No option, CMU-U65V02, CMU-U65V04 500 4000 No option, CMU-U65V02, CMU-U65V04 1000 4000 No option, CMU-U65V02, CMU-U65V04 50 200 No option, CMU-U65V02, CMU-U65V04 100 400 No option, CMU-U65V02, CMU-U65V04 200 1000 No option, CMU-U65V02, CMU-U65V04

285.714 (setting: 300) 2000 No option, CMU-U65V02, CMU-U65V04 500 2000 No option, CMU-U65V02, CMU-U65V04 1000 2000 No option, CMU-U65V02, CMU-U65V04 2000 4000 No option, CMU-U65V02, CMU-U65V04 3000 10000 CMU-U65V04 5000 10000 CMU-U65V04

Test Configuration

The following commands configure the I/Q Recorder measurement.

CONFigure:IQRecorder:CONTrol:FILTer <Type> Filter

<Tpye>

GAUS | NYQ

Description of com mand

This command specifies the IF filter type.

CONFigure:IQRecorder:CONTrol:GFILTer <Bandwidth> Filter

F50k | F100K | F200K | F300K | F500K | F1M

Description of com mand

This command specifies the filter bandwidth for IF filters of Gaussian type (CONFigure:IQRecorder: CON- Trol:FILTer GAUS).

Desciption of paramet ers Def. value Def. unit FW vers.

Gauss filter

NYQ – V3.80

Nyquist filter

Desciption of paramet ers Def. value Def. unit FW vers.

50 kHz, 100 kHz, 200 kHz,

F1M – V3.80

300 kHz, 500 kHz, 1 MHz,

1100.4984.12 S.19 V3.80_E-1

I/Q Recorder R&S CMU 200

CONFigure:IQRecorder:CONTrol:NFILTer <Bandwidth> Filter

F50k | F100K | F200K | F300K | F500K | F1M | F2M | F3M | F4M

Description of com mand

This command specifies the filter bandwidth for IF filters of Nyquist type (CONFigure:IQRecorder: CON- Trol:FILTer NYQ). The 3-MHz and 5-MHz bandwidths correspond to highest sampling rates and require option CMU-U65V04; see Table 2 on p. 19. The F300K setting actually corresponds to a bandwidth of

285.714 kHz.

CONFigure:IQRecorder:CONTrol:TDELay <Delay> Trigger Delay

<Delay>

–32000 samples to +32000 samples –64000 samples to +64000 samples

Description of com mand

This command specifies a number of sample periods between the trigger event and the start of the measurement. The resulting trigger delay time depends on the filter settings; see Table 2 on p. 19. The samples are continuously acquired and stored so that negative trigger delays are allowed.

CONFigure:IQRecorder:CONTrol:CTIMeout <Timeout> Capture Timeout

1 s/10 to 600 s/10 OFF

Description of com mand

This command specifies a maximum time between the start of the measurement and the trigger time in tenths of a second (numeric entry: 1 to 600). The setting is valid for power and external trigger events. If no trigger occurs, the READ…:ARRay:… commands return NTR.

CONFigure:IQRecorder:CONTrol:CLENgth <Samples> Capture Length

1 sample to +32768 samples 1 sample to +65536 samples

Description of com mand

This command specifies the number of samples acquired in every single measurement.

Desciption of paramet ers Def. value Def. unit FW vers.

50 kHz, 100 kHz, 200 kHz,

F1M – V3.80

300 kHz, 500 kHz, 1 MHz, 3 MHz, 5 MHz (with option CMU-U65V04)

Desciption of paramet ers Def. value Def. unit FW vers.

Trigger delay without option

0 (samples) V3.80

Trigger delay with option R&S CMU-U65V02 or CMU-U65V04

Desciption of paramet ers Def. value Def. unit FW vers.

Capture timeout (in multiples of 0.1 s)

10 1/10 s V3.80

No timeout checked

Desciption of paramet ers Def. value Def. unit FW vers.

Capture length without option

1024 (samples) V3.80

Capture length with option R&S CMUU65V02 or CMU-U65V04

1100.4984.12 S.20 V3.80_E-1

R&S CMU 200 I/Q Recorder

CONFigure:IQRecorder:CONTrol:RMODe <Format> Format

IQ | PLW | PLUW

Description of com mand

This command specifies the output format for the I/Q data. Rectangular values can be retrieved by means of the commands READ…:ARRay:IQRecorder:I?, READ…:ARRay:IQRecorder:Q? etc. Polar values can be retrieved by means of READ…:ARRay:IQRecorder:PHASe?, READ…:ARRay:IQRecorder:LEVel?, READ…:ARRay:IQRecorder:PL? etc. Polar and rectangular representation of the results are equivalent:

<Magnitude> = sqrt (<I> <I> = <Magnitude> * cos (<Phase>) <Q> = <Magnitude> * sin (<Phase>)

Wrapped phase means that the phase is limited to values between –180° and +180°.

CONFigure:IQRecorder:CONTrol:LFORmat <Unit> Unit

<Unit>

VOLT | DBM Linear or logarithmic magnitude DBM – V3.80

Description of com mand

This command specifies the unit for the magnitude if one of the polar formats is active (CONFig- ure:IQRecorder:CONTrol:RMODe PLW | PLUW). Volts and dBm values are converted assuming a reference impedance of 50 Ω.

Desciption of paramet ers Def. value Def. unit FW vers.

Rectangular values (I and Q amplitudes)

PLW – V3.80

Polar values (magnitude and wrapped phase) Polar values (magnitude and unwrapped phase)

+ <Q>2); <Phase> = arctan (<Q>/<I>)

Desciption of paramet ers Def. value Def. unit FW vers.

For the rectangular (I/Q) format, the unit is always V, and negative values are allowed.

DEFault:IQRecorder:CONTrol <Enable> Default Settings

ON | OFF

Description of com mand

Description of paramet ers Def. value Def. unit FW vers.

The parameters are set to default values Some or all parameters differ from the default values

– V3.80

If used as a setting command with the parameter ON this command sets all parameters of the subsystem to default values (the setting OFF results in an error message). If used as a query the command returns whether all parameters are set to default values (ON) or not (OFF).

1100.4984.12 S.21 V3.80_E-1

I/Q Recorder R&S CMU 200

Subarray Configuration

The subsystem SUBarrays:POWer:SLOT defines the measurement range and the type of output values.

CONFigure:SUBarrays:IQRecorder <Mode>,<Start>,<Samples>{,<Start>,<Samples>} Definition of Subarrays

<Mode>

ALL | ARIThmetical | MINimum | MAXimum | IVAL,

<Start>

1 to N, First sample in current range 1 –

1 to N Number of samples in current range N – V3.80

Description of com mand

This command configures the READ:SUBarrays:IQRecorder..., FETCh:SUBarrays:IQRecorder..., and SAMPle:SUBarrays:IQRecorder... commands. It restricts the measurement to up to 32 subranges where either all measurement results (the number of which is given by the second numerical parameter) or a single statistical value is returned. The subranges are defined by the current number of the first sample and the number of samples within a subrange.

Description of paramet ers Def. value Def. unit

Return all measurement values Return arithm. mean value in every range Return minimum value in every range Return maximum value in every range Return single value at <Start>

Description of paramet ers Def. value Def. unit

Description of paramet ers Def. value Def. unit FW vers.

ALL –

The subranges may overlap but must be within the range of the I/Q Recorder measurement which is defined by the capture length N (CONFigure:IQRecorder:CONTrol:CLENgth). Results outside this range are not available (result NAN) and do not enter into the ARIThmetical, MINimum and MAXimum values.

By default, only one range corresponding to the total measurement range is used and all measurement values are returned.

Subarrays are only available for data transfer in ASCII format.

1100.4984.12 S.22 V3.80_E-1

R&S CMU 200 I/Q Recorder

ASCII Results – Subsystem IQRecorder:ARRay

The subsystem IQRecorder:ARRay...? measures and returns the I/Q Recorder results as a commaseparated array of ASCII values.

Phase values READ:ARRay:IQRecorder:PHASe? Start single shot measurement and return results FETCh:ARRay:IQRecorder:PHASe? Read out meas. results (unsynchronized) SAMPle:ARRay:IQRecorder:PHASe? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –180 deg to +180 deg, …, –180 deg to +180 deg

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the phases. A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. In the unwrapped phase format (PLUW), the phase is not restricted to the range between –180 deg and +180 deg.

N denotes the total number of samples acquired (capture length, CONFigure:IQRecorder:CONTrol :CLENgth). The status indicators have the following meaning:

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for phase (status = OK only)

1 …

value for phase (status = OK only)

INV NAN NAN NAN NAN

– – deg deg deg

V3.80

OK Valid measurement data. The output array contains N phase values (OK, N, phase

, …, phaseN).

NTR No trigger event received during the capture timeout (CONFigure:IQRecorder:CONTrol :CTIMeout). The output array reads (NTR, 1 NAN).

OFLW Overflow, input path overdriven. The output array reads (OFLW, 1 NAN). INV Invalid measurement data (e.g. because the wrong format was selected). The output array reads

(INV, 1 NAN).

Magnitude values READ:ARRay:IQRecorder:LEVel? Start single shot measurement and return results FETCh:ARRay:IQRecorder:LEVel? Read out meas. results (unsynchronized) SAMPle:ARRay:IQRecorder:LEVel? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –100 dBm to +60 dBm, …, –100 dBm to +60 dBm

Description of com mand

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for magnitude (status = OK only)

1 …

value for magnitude (status = OK only)

INV NAN NAN NAN NAN

– – dBm dBm dBm

V3.80

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the magnitudes. A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. If the magnitude is expressed as an equivalent voltage, the output values are approx. in the range 2.2*10

–6

V to 220 V.

N denotes the total number of samples acquired (capture length, CONFigure:IQRecorder:CONTrol :CLENgth). The status indicators are described on p. 23.

1100.4984.12 S.23 V3.80_E-1

I/Q Recorder R&S CMU 200

Phase and magnitude values READ:ARRay:IQRecorder:PL? Start single shot measurement and return results FETCh:ARRay:IQRecorder:PL? Read out meas. results (unsynchronized) SAMPle:ARRay:IQRecorder:PL? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –180 deg to +180 deg, –100 dBm to +60 dBm, …, –180 deg to +180 deg, –100 dBm to +60 dBm

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the phases and magnitudes. A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. In the unwrapped phase format (PLUW), the phase is not restricted to the range between –180 deg and +180 deg. If the magnitude is expressed as an equivalent voltage, the output values are approx. in the range 2.2*10

N denotes the total number of samples acquired (capture length, CONFigure:IQRecorder:CONTrol :CLENgth). The status indicators are described on p. 23.

I amplitudes READ:ARRay:IQRecorder:I? Start single shot measurement and return results FETCh:ARRay:IQRecorder:I? Read out meas. results (unsynchronized) SAMPle:ARRay:IQRecorder:I? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –220 V to +220 V, …, –220 V to +220 V

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the I amplitudes. The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for phase (status = OK only)

value for magnitude (status = OK only)

1 …

value for phase (status = OK only)

value for magnitude (status = OK only)

–6

V to 220 V.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for I amplitude (status = OK only)

1 …

value for I amplitude (status = OK only)

INV NAN NAN NAN NAN NAN NAN

INV NAN NAN NAN NAN

– – deg dBm

deg dBm

– – V V V

V3.80

N denotes the total number of samples acquired (capture length, CONFigure:IQRecorder:CONTrol :CLENgth). The status indicators are described on p. 23.

1100.4984.12 S.24 V3.80_E-1

R&S CMU 200 I/Q Recorder

Q amplitudes READ:ARRay:IQRecorder:Q? Start single shot measurement and return results FETCh:ARRay:IQRecorder:Q? Read out meas. results (unsynchronized) SAMPle:ARRay:IQRecorder:Q? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –220 V to +220 V, …, –220 V to +220 V

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the Q amplitudes. The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

N denotes the total number of samples acquired (capture length, CONFigure:IQRecorder:CONTrol :CLENgth). The status indicators are described on p. 23.

I and Q amplitudes READ:ARRay:IQRecorder:IQ? Start single shot measurement and return results FETCh:ARRay:IQRecorder:IQ? Read out meas. results (unsynchronized) SAMPle:ARRay:IQRecorder:IQ? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –220 V to +220 V, –220 V to +220 V, …, –220 V to +220 V –220 V to +220 V

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the I and Q amplitudes. The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for Q amplitude (status = OK only)

1 …

value for Q amplitude (status = OK only)

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for I amplitude (status = OK only)

value for Q amplitude (status = OK only)

1 …

value for I amplitude (status = OK only)

value for Q amplitude (status = OK only)

INV NAN NAN NAN NAN

INV NAN NAN NAN NAN NAN NAN

– – V V V

– – V V V V V

V3.80

N denotes the total number of samples acquired (capture length, CONFigure:IQRecorder:CONTrol :CLENgth). The status indicators are described on p. 23.

1100.4984.12 S.25 V3.80_E-1

I/Q Recorder R&S CMU 200

Measured Subarrays – Subsystem IQRecorder:SUBarray

The subsystem IQRecorder:SUBarray...? measures and returns the I/Q Recorder subarray results.

Phase values READ:SUBarrays:IQRecorder:PHASe? Start single shot measurement and return results FETCh:SUBarrays:IQRecorder:PHASe? Read out meas. results (unsynchronized) SAMPle:SUBarrays:IQRecorder:PHASe? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –180 deg to +180 deg, …, –180 deg to +180 deg

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the phases in the subranges defined by means of the CONFigure:SUBarrays:IQRecorder command (see p.

22). A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid

results. In the unwrapped phase format (PLUW), the phase is not restricted to the range between –180 deg and +180 deg.

The CONFigure:SUBarrays:IQRecorder command defines a maximum of 32 subranges. If one of the statistical modes (ARIThmetical, MINimum, MAXimum, IVAL) is set, only one value is returned per subrange.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for phase (status = OK only)

1 …

value for phase (status = OK only)

INV NAN NAN NAN NAN

– – deg deg deg

V3.80

N denotes the total number of returned values. The status indicators are described on p. 23.

Magnitude values READ:SUBarrays:IQRecorder:LEVel? Start single shot measurement and return results FETCh:SUBarrays:IQRecorder:LEVel? Read out meas. results (unsynchronized) SAMPle:SUBarrays:IQRecorder:LEVel? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –100 dBm to +60 dBm, …, –100 dBm to +60 dBm

Description of com mand

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for magnitude (status = OK only)

1 …

value for magnitude (status = OK only)

INV NAN NAN NAN NAN

– – dBm dBm dBm

V3.80

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the magnitudes in the subranges defined by means of the CONFigure:SUBarrays:IQRecorder command (see p. 22). A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. If the magnitude is expressed as an equivalent voltage, the output values are approx. in the range

–6

2.2*10

V to 220 V.

The CONFigure:SUBarrays:IQRecorder command defines a maximum of 32 subranges. If one of the statistical modes (ARIThmetical, MINimum, MAXimum, IVAL) is set, only one value is returned per subrange.

N denotes the total number of returned values. The status indicators are described on p. 23.

1100.4984.12 S.26 V3.80_E-1

R&S CMU 200 I/Q Recorder

Phase and magnitude values READ:SUBarrays:IQRecorder:PL? Start single shot measurement and return results FETCh:SUBarrays:IQRecorder:PL? Read out meas. results (unsynchronized) SAMPle:SUBarrays:IQRecorder:PL? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –180 deg to +180 deg, –100 dBm to +60 dBm, …, –180 deg to +180 deg, –100 dBm to +60 dBm

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the phases and magnitudes in the subranges defined by means of the CONFigure:SUBarrays:IQRecorder command (see p. 22). A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. In the unwrapped phase format (PLUW), the phase is not restricted to the range between –180 deg and +180 deg. If the magnitude is expressed as an equivalent voltage, the output values are approx. in the range 2.2*10

The CONFigure:SUBarrays:IQRecorder command defines a maximum of 32 subranges. If one of the statistical modes (ARIThmetical, MINimum, MAXimum, IVAL) is set, only one value is returned per subrange.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for phase (status = OK only)

value for magnitude (status = OK only)

1 …

value for phase (status = OK only)

value for magnitude (status = OK only)

–6

V to 220 V.

INV NAN NAN NAN NAN NAN NAN

– – deg dBm

deg dBm

V3.80

N denotes the total number of returned values. The status indicators are described on p. 23.

I amplitudes READ:SUBarrays:IQRecorder:I? Start single shot measurement and return results FETCh:SUBarrays:IQRecorder:I? Read out meas. results (unsynchronized) SAMPle:SUBarrays:IQRecorder:I? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –220 V to +220 V, …, –220 V to +220 V

Description of com mand

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for I amplitude (status = OK only)

1 …

value for I amplitude (status = OK only)

INV NAN NAN NAN NAN

– – V V V

V3.80

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the I amplitudes in the subranges defined by means of the CONFigure:SUBarrays:IQRecorder command (see p.

22). The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid

results. The CONFigure:SUBarrays:IQRecorder command defines a maximum of 32 subranges. If one of the sta-

tistical modes (ARIThmetical, MINimum, MAXimum, IVAL) is set, only one value is returned per subrange.

N denotes the total number of returned values. The status indicators are described on p. 23.

1100.4984.12 S.27 V3.80_E-1

I/Q Recorder R&S CMU 200

Q amplitudes READ:SUBarrays:IQRecorder:Q? Start single shot measurement and return results FETCh:SUBarrays:IQRecorder:Q? Read out meas. results (unsynchronized) SAMPle:SUBarrays:IQRecorder:Q? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –220 V to +220 V, …, –220 V to +220 V

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the Q amplitudes in the subranges defined by means of the CONFigure:SUBarrays:IQRecorder command (see p.

22). The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid

results. The CONFigure:SUBarrays:IQRecorder command defines a maximum of 32 subranges. If one of the sta-

tistical modes (ARIThmetical, MINimum, MAXimum, IVAL) is set, only one value is returned per subrange.

N denotes the total number of returned values. The status indicators are described on p. 23.

I and Q amplitudes READ:SUBarrays:IQRecorder:IQ? Start single shot measurement and return results FETCh:SUBarrays:IQRecorder:IQ? Read out meas. results (unsynchronized) SAMPle:SUBarrays:IQRecorder:IQ? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, 1 | N, –220 V to +220 V, –220 V to +220 V, …, –220 V to +220 V –220 V to +220 V

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the I and Q amplitudes in the subranges defined by means of the CONFigure:SUBarrays:IQRecorder command (see p. 22). The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for Q amplitude (status = OK only)

1 …

value for Q amplitude (status = OK only)

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of values

value for I amplitude (status = OK only)

value for Q amplitude (status = OK only)

1 …

value for I amplitude (status = OK only)

value for Q amplitude (status = OK only)

INV NAN NAN NAN NAN

INV NAN NAN NAN NAN NAN NAN

– – V V V

– – V V V V V

V3.80

The CONFigure:SUBarrays:IQRecorder command defines a maximum of 32 subranges. If one of the statistical modes (ARIThmetical, MINimum, MAXimum, IVAL) is set, only one value is returned per subrange.

N denotes the total number of returned values. The status indicators are described on p. 23.

1100.4984.12 S.28 V3.80_E-1

R&S CMU 200 I/Q Recorder

Binary Results – Subsystem IQRecorder:BINary:ARRay

The subsystem IQRecorder:BINary:ARRay...? m easures and returns the I/Q Recorder r esults in binary format. Each value is c oded as a 32-bit (4-byte) IEEE 754 floating point num ber. The general for mat of an output string is described in Table 3 below.

Table 3 Binary output format

Parameter Format Values, Range Description

Status ASCII [OK, NTR, OFLW, INV] Validity of the captured dat a

#L ASCII [1, …, 6] Num ber of digits of the following count er N

N ASCII [4, …, 262144] with option

Value

with i=1 to N/4

EOS ASCII Hex: 0x0D0A End of st ri ng character,

Example of valid measurement output data with capture l engt h 16 (and therefore N = 64): {OK,#264 byte Note that a comm a separates the status indicator from the data part. In the combined phase/magnitude and I/Q commands

(READ…PL?, READ:…:IQ? etc.) the number of bytes is doubled and N is replaced by 2*N.

Output in case of errors:

{INV} Invali d measurement data (e.g. because the wrong format was select ed) {NTR} No trigger event received during the capture timeout

(CONFigure:IQRecorder:CONTrol:CTIMeout) {OFLW} Overflow, input path overdriven

BINARY byte

byte

1,2

byte

1,1

R&S CMU-U65 V02 or R&S CMU-U65 V04

[4, …, 131072] without option

byte

with i=1 to N/4

byte

1,3

i,1

1,4

byte

i,2

2,1

byte

i,3

byte

2,2

i,4

byte

2,3

Total number of the following data byt es N = 4 * capture length (CONFigure :IQRecorder:CONTrol:CLENgth).

32-bit (4-byte) IEEE 754 float i ng poi nt number

[0x0D = carriage return] & [0x0A = line feed]

2,4

… byte

16,1

byte

16,2

byte

16,3

byte

16,4

EOS}

Phase values READ:BINary:ARRay:IQRecorder:PHASe? Start single shot measurement and return results FETCh:BINary:ARRay:IQRecorder:PHASe? Read out meas. results (unsynchronized) SAMPle:BINary:ARRay:IQRecorder:PHASe? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, L N <–180 deg to +180 deg> … <–180 deg to +180 deg> EOS

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the phases in the binary format described in Table 3 on p. 19. Each phase value is coded as a 32-bit (4-byte) IEEE 754 floating point number. A polar format (CONFigure:IQRecorder:CONTrol :RMODe PLW | PLUW) must be active to obtain valid results. In the unwrapped phase format (PLUW), the phase is not restricted to the range between –180 deg and +180 deg.

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of digits of N (status = OK only) Number of data bytes (status = OK only)

value for phase (status = OK only)

N/4 End of string (status = OK only)

INV – – – – – –

– – – deg deg deg –

V3.80

N denotes four times the total number of samples acquired (capture length, CONFigure:IQRecorder :CONTrol:CLENgth).

1100.4984.12 S.29 V3.80_E-1

I/Q Recorder R&S CMU 200

Magnitude values READ:BINary:ARRay:IQRecorder:LEVel? Start single shot measurement and return results FETCh:BINary:ARRay:IQRecorder:LEVel? Read out meas. results (unsynchronized) SAMPle:BINary:ARRay:IQRecorder:LEVel? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, L N <–100 dBm to +60 dBm> … <–100 dBm to +60 dBm> EOS

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the magnitudes in the binary format described in Table 3 on p. 19. Each magnitude value is coded as a 32-bit (4byte) IEEE 754 floating point number. A polar format (CONFigure:IQRecorder:CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. If the magnitude is expressed as an equivalent voltage, the output values are approx. in the range 2.2*10

N denotes four times the total number of samples acquired (capture length, CONFigure:IQRecorder :CONTrol:CLENgth).

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of digits of N (status = OK only) Number of data bytes (status = OK only)

value for magnitude (status = OK only)

N/4 End of string (status = OK only)

–6

V to 220 V.

INV – – – – – –

– – – dBm dBm dBm –

V3.80

1100.4984.12 S.30 V3.80_E-1

R&S CMU 200 I/Q Recorder

Phase and magnitude values READ:BINary:ARRay:IQRecorder:PL? [<Order>] Start single shot measurement and return results FETCh:BINary:ARRay:IQRecorder:PL? [<Order>] Read out meas. results (unsynchronized) SAMPle:BINary:ARRay:IQRecorder:PL? [<Order>] Read out measurement results (synchronized)

<Order>

NORMal ALTernate

Returned values, normal order

OK | NTR | OFLW | INV, L 2*N <–180 deg to +180 deg> … <–180 deg to +180 deg> <–100 dBm to +60 dBm> … <–100 dBm to +60 dBm> EOS

Returned values, altern. order

OK | NTR | OFLW | INV, L 2*N <–180 deg to +180 deg> <–100 dBm to +60 dBm> … <–180 deg to +180 deg> <–100 dBm to +60 dBm> EOS

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the phases and magnitudes in the binary format described in Table 3 on p. 19. Each phase and each magnitude value is coded as a 32-bit (4-byte) IEEE 754 floating point number. A polar format (CONFigure:IQRecorder :CONTrol:RMODe PLW | PLUW) must be active to obtain valid results. In the unwrapped phase format (PLUW), the phase is not restricted to the range between –180 deg and +180 deg. If the magnitude is expressed as an equivalent voltage, the output values are approx. in the range 2.2*10

Description of paramet ers Def. value Def. unit FW vers.

All phases first, then all magnitudes

NORMal – V3.80 Alternating phases and magnitudes (see below)

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of digits of 2*N (status = OK only) Number of data bytes (status = OK only)

value for phase (status = OK only)

N/4

value for magnitude (status = OK only)

N/4 End of string (status = OK only)

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of digits of 2*N (status = OK only) Number of data bytes (status = OK only)

value for phase (status = OK only)

value for magnitude (status = OK only)

value for phase (status = OK only)

N/4

value for magnitude (status = OK only)

N/4 End of string (status = OK only)

–6

V to 220 V.

INV

–

INV

–

– – – deg deg deg dBm dBm dBm –

– – – deg dBm

deg dBm –

V3.80

N denotes four times the total number of samples acquired (capture length, CONFigure:IQRecorder :CONTrol:CLENgth).

1100.4984.12 S.31 V3.80_E-1

I/Q Recorder R&S CMU 200

I amplitudes READ:BINary:ARRay:IQRecorder:I? Start single shot measurement and return results FETCh:BINary:ARRay:IQRecorder:I? Read out meas. results (unsynchronized) SAMPle:BINary:ARRay:IQRecorder:I? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, L N <–220 V to +220 V> … <–220 V to +220 V> EOS

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the I amplitudes in the binary format described in Table 3 on p. 19. Each amplitude value is coded as a 32-bit (4-byte) IEEE 754 floating point number. The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

N denotes four times the total number of samples acquired (capture length, CONFigure:IQRecorder :CONTrol:CLENgth).

Q amplitudes READ:BINary:ARRay:IQRecorder:Q? Start single shot measurement and return results FETCh:BINary:ARRay:IQRecorder:Q? Read out meas. results (unsynchronized) SAMPle:BINary:ARRay:IQRecorder:Q? Read out measurement results (synchronized)

Returned values

OK | NTR | OFLW | INV, L N <–220 V to +220 V> … <–220 V to +220 V> EOS

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the Q amplitudes in the binary format described in Table 3 on p. 19. Each amplitude value is coded as a 32-bit (4-byte) IEEE 754 floating point number. The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

Description of paramet ers Def. value Def. uni t FW vers.

Measurement status indicators Number of digits of N (status = OK only) Number of data bytes (status = OK only)

value for I amplitude (status = OK only)

N/4 End of string (status = OK only)

Description of paramet ers Def. value Def. uni t FW vers.

Measurement status indicators Number of digits of N (status = OK only) Number of data bytes (status = OK only)

value for Q amplitude (status = OK only)

N/4 End of string (status = OK only)

INV

–

INV

–

– – – V V V –

V3.80

N denotes four times the total number of samples acquired (capture length, CONFigure:IQRecorder :CONTrol:CLENgth).

1100.4984.12 S.32 V3.80_E-1

R&S CMU 200 I/Q Recorder

I and Q amplitudes READ:BINary:ARRay:IQRecorder:IQ? [<Order>] Start single shot measurement and return results FETCh:BINary:ARRay:IQRecorder:IQ? [<Order>] Read out meas. results (unsynchronized) SAMPle:BINary:ARRay:IQRecorder:IQ? [<Order>] Read out measurement results (synchronized)

<Order>

NORMal ALTernate

Returned values, norm. order

OK | NTR | OFLW | INV, L 2*N <–220 V to +220 V> … <–220 V to +220 V> <–220 V to +220 V> … <–220 V to +220 V> EOS

Returned values, alt. order

OK | NTR | OFLW | INV, L 2*N <–220 V to +220 V> <–220 V to +220 V> … <–220 V to +220 V> <–220 V to +220 V> EOS

Description of com mand

These commands are always queries. They start a IQRecorder measurement (READ...)and/or return the I and Q amplitudes in the binary format described in Table 3 on p. 19. Each amplitude value is coded as a 32-bit (4-byte) IEEE 754 floating point number. The rectangular format (CONFigure:IQRecorder:CONTrol:RMODe IQ) must be active to obtain valid results.

Description of paramet ers Def. value Def. unit FW vers.

All I amplitudes first, then all Q amplitudes

NORMal – V3.80

Alternating I and Q amplitudes (see below)

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of digits of 2*N (status = OK only) Number of data bytes (status = OK only)

value for I amplitude (status = OK only)

N/4

value for Q amplitude (status = OK only)

value for Q amp. (status = OK only)

N/4 End of string (status = OK only)

Description of paramet ers Def. value Def. unit FW vers.

Measurement status indicators Number of digits of 2*N (status = OK only) Number of data bytes (status = OK only)

value for I amplitude (status = OK only)

value for Q amplitude (status = OK only)

value for I amplitude (status = OK only)

N/4

value for Q amp. (status = OK only)

N/4 End of string (status = OK only)

INV

–

INV

–

– – – V V V V V V –

– – – V V V V V –

V3.80

N denotes four times the total number of samples acquired (capture length, CONFigure:IQRecorder :CONTrol:CLENgth).

1100.4984.12 S.33 V3.80_E-1

Supplement to the Operating Manual

R&S

CMU 200/300

Complex I/Q vs. Slot Measurement (Option R&S® CMU-K48)

I/Q vs. Slot Measurement....................................................................................................................1

Remote Control Reference (IQSLot)..................................................................................................3

Measurement Control..................................................................................................................3

Test Configuration.......................................................................................................................4

Display Configuration..................................................................................................................5

Subarray Definition......................................................................................................................6

Retrieving Results.......................................................................................................................6

I/Q vs. Slot Measurement

The I/Q vs. Slot m easurement provides averaged I/Q amplitudes in a sequence of cons ecutive measurement steps of configurable length. The measurement is accessible from the Menu Select menu:

SELECT

Figure 1 I/Q vs. Slot measurement selection Typically, I/Q vs. Step is used to m easure the I/Q am plitudes over a s eries of power s teps, e.g. in order

to assess the nonlinearities of a mobile phone’s modulator. With a signal of the shape shown below (see Figure 2) the measurement is most conveniently triggered using a power trigger. The measurement starts after a specified Trigger Delay. Measurement data is acquired continuously, however, the I/Q amplitudes for each measurement s tep are only averaged over an area with a configurable Measure- ment Length.

1100.4984.12 S.1 E-1

I/Q vs. Slot Measurement R&S CMU-K48

Figure 2 Step Length, Measurement Length and Trigger Offset

To compensate f or a constant f requency offset of the meas ured signal, the frequency is estimated in all measurement ar eas i = 1, …, <Number of Steps>, which yields a set of individual frequency offset values ∆ω Limit are dis carded; the remaining ∆ω offset ∆ω ones below the Frequency Estimation Limit. The average f requency error ∆ω played in the upper right corner of the measurement menu.

. The ∆ωi for measurement areas with a signal level below a specified Frequency Estimation

are used to calculate a comm on, weighted average frequency

. This average value corrects the signal frequency in all measurement areas, inc luding the

avg

(Freq. Err.) is also dis-

avg

The phase in the first measurement step is arbitrarily set to zero. The I/Q vs. Slot measurement can be configured using the hotkeys associated with the I/Q vs. Slot

measurement control softkey. Alternatively the settings are ac cessible from the I/Q v s. Slot Configura- tion menu.

Figure 3 I/Q vs. Slot measurement menu

1100.4984.12 S.2 E-1

R&S CMU-K48 Remote Control Reference (IQSLot)

Remote Control Reference (IQSLot)

The subsystem IQSLot m easures the I and Q amplitudes in a sequence of consecutive measur ement steps. The subsystem corr esponds to the measurement menu I/Q v s. Slot and the associated popup menu I/Q vs. Slot Configuration.

Measurement Control

The following commands control the I/Q vs. Slot measurement. They correspond to the I/Q vs. Slot measurement control softkey.

INITiate:IQSLot Start new measurement ABORt:IQSLot Abort running measurement and switch off STOP:IQSLot Stop measurement after current evaluation period CONTinue:IQSLot Next measurement step (only stepping mode)

Command descripti on FW vers.

These commands have no query form. They start or stop the measurement, setting it to the status indicated in the top right column.

CONFigure:IQSLot:EREPorting <Mode> Event reporting of the measurement

<Mode>

SRQ | SOPC | SRSQ | OFF

Command descripti on

This command defines the events generated when the measurement is terminated or stopped (event reporting, see chapter 5 of the operating manual).

Parameter descripti on Def. value Def. unit FW vers.

Service request Single operation complete SRQ and SOPC No reporting

OFF – V3.80

FETCh:IQSLot:STATus? Measurement status

Returned value

OFF | RUN | STOP | ERR | STEP | RDY,

0 to 10000 | NONE

1 to 1000 | NONE

Command descripti on

This command is always a query. It returns the status of the measurement (see chapters 3 and 5).

Parameter descripti on Def. value Def. unit FW vers.

Measurement in the OFF state (*RST or ABORt) Running (after INITiate, CONTinue or READ) Stopped (STOP) OFF (could not be started) Stepping mode (<stepmode>=STEP) Stopped according to repetition mode and stop condition

Counter for measurement cycles Counter not used

Counter for current step within a measurement cycle Only one step measured

OFF

NONE

–

⇒

RUN

⇒

OFF

⇒

STOP

⇒

RUN

V3.80

1100.4984.12 S.3 E-1

Remote Control Reference (IQSLot) R&S CMU-K48

Test Configuration

The commands in the following subsystems configure the IQSLot measurement. They correspond to the I/Q vs. Slot Configuration popup menu.

DEFault:IQSLot:CONTrol <Enable> Default Settings

ON | OFF

Description of com mand

If used as a setting command with the parameter ON, this command sets all parameters of the subsystem to their default values (the setting OFF results in an error message).

If used as a query the command returns whether all parameters are set to their default values (ON) or not (OFF).

Measurement cycles CONFigure:IQSLot:CONTrol:REPetition <Repetition> ,<StopCondition>,<Stepmode>

CONTinuous | SINGleshot | 1 to 10000

NONE Dummy parameter (for future extensions) NONE – V3.80

STEP | NONE

Command descripti on

This command defines the repetition mode and the stepping mode for the measurement. A stop condition (second parameter in other measurements) is not available.

Description of paramet ers Def. value Def. unit FW vers.

The parameters are set to default values

ON – V3.80

Some or all parameters are not set to default values

Parameter descripti on Def. value Def. unit FW vers.

Continuous measurement (until STOP or ABORT)

SING – V3.80 Single shot measurement (until Status = RDY) Multiple measurement (counting, until Status = STEP | RDY)

Parameter descripti on Def. value Def. unit FW vers.

Description of paramet ers Def. value Def. unit FW vers.

Interrupt measurement after each statistics cycle

NONE – V3.80 Continue measurement according to its rep. mode

Note: In the case of READ commands (READ:…IQSLot…?) the <Repetition> parameter has no effect; the

measurement is always stopped after a single shot.

CONFigure:IQSLot:CONTrol:NOSTeps <Steps> Number of Steps

<Steps>

Parameter descripti on Def. value Default unit FW vers.

1 to 1000 Steps per measurement cycle 10 – V3.80

Command descripti on

This command defines the number of steps per measurement cycle: a single shot measurement is complete after the specified number of steps.

CONFigure:IQSLot:CONTrol:TOFFset <Time> Trigger Offset

<Time>

Parameter descripti on Def. value Default unit FW vers.

0 µs to 32768 µs Trigger offset 10 µs V3.80

Command descripti on

This command defines an offset between the trigger event (power or external trigger: TRIGger:[SEQuence:]SOURce RFPower | IFPower | EXTern) and the start of the measurement (see Figure 2 on p. 2). The trigger offset is ignored for a free run measurement (TRIGger:[SEQuence:]SOURce IMMeditate).

1100.4984.12 S.4 E-1

R&S CMU-K48 Remote Control Reference (IQSLot)

CONFigure:IQSLot:CONTrol:SLENgth <Time> Step Length

<Time>

128 µs to 16384 µs Step length 128 µs V3.80

Command descripti on

This command defines the length of each step (see Figure 2 on p. 2). To measure a series of power steps the sum of the measurement length (CONFigure:IQSLot:CONTrol:MLENgth) plus the trigger offset (CONFigure:IQSLot:CONTrol :TOFFset) should not exceed the step length.

Parameter descripti on Def. value Default unit FW vers.

CONFigure:IQSLot:CONTrol:MLENgth <Time> Measurement Length

<Time>

128 µs to 8192 µs Measurement length 128 µs V3.80

Command descripti on

This command defines the measurement length within each step (see Figure 2 on p. 2). All I/Q results are averaged over the measurement length so that a single complex result is obtained for each step. To measure a series of power steps the sum of the measurement length plus the trigger offset (CONFigure:IQSLot :CONTrol:TOFFset) should not exceed the step length (CONFigure:IQSLot:CONTrol:SLENgth).

Parameter descripti on Def. value Default unit FW vers.

CONFigure:IQSLot:CONTrol:FELimit <Level> Frequency Estimation Limit

<Level>

–200 dB to –30 dB Frequency Estimation Limit –30 dB V3.80

Command descripti on

This command defines a threshold for the average levels in the slots that is is relevant for the frequency offset estimate: Slots below the threshold are not considered for the estimate.

Parameter descripti on Def. value Default unit FW vers.

Display Configuration

The following com m and selec ts the dis play format f or the c om plex I/Q v s. Slot res ults. It cor responds to the Display softkey in the measurement menu and to the associated hotkeys.

CONFigure:IQSLot:SELection <Format> Display Format

IQ LP

Command descripti on

This command selects the display format for the complex I/Q vs. Slot results. The measurement results retrieved via READ:ARRay:IQSLot:I?, READ:ARRay:IQSLot:Q?, READ:ARRay:IQSLot:LEVel?, READ:ARRay:IQSLot:PHASe? etc. must be accordance with the current display format.

Example: While the complex format (IQ) is active, the command READ:ARRay:IQSLot:LEVel? causes an execution error.

Parameter descripti on Def. value Default unit FW vers.

Complex format (I and Q amplitudes) Polar format (level and phase)

IQ – V3.80

1100.4984.12 S.5 E-1

Remote Control Reference (IQSLot) R&S CMU-K48

Subarray Definition

The subsystem SUBarrays:IQSLot defines the measurement range and the type of output values.

CONFigure:SUBarrays:IQSLot Definition of Subarrays <Mode>,<Start>,<Samples>{,<Start>,<Samples>}

<Mode>

ALL | ARIThmetical | MINimum | MAXimum | IVAL,

<Start>

1 to N*), First step in current range Min – V3.80

1 to N*) Number of steps in current subrange Max – V3.80

Description of com mand

This command configures the READ:SUBarrays:IQSLot..., FETCh:SUBarrays:IQSLot..., and SAMPle:SUBarrays:IQSLot commands. It restricts the measurement to up to 32 subranges where either all measurement results (the number of which is given by the second numerical parameter) or a single statistical value is returned. The subranges are defined by the first measured step and the number of steps to be measured.

Description of paramet ers Def. value Def. unit FW vers.

Return all measurement values Return arithm. mean value in every subrange Return minimum value in every subrange Return maximum value in every subrange Return single interpolated value at <Start>

Description of paramet ers Def. value Def. unit FW vers.

ALL – V3.80

For <Mode> = IVAL, the <Samples> parameter is ignored and the CMU returns a single measurement value for step no. <Start>.

The subranges may overlap but can not exceed the total number N of measured steps. Steps with numbers above N are not measured (result NAN) and do not enter into the ARIThmetical, MINimum and MAXimum values.

By default, only one range corresponding to the total measurement range is used and all measurement values are returned.

)

N denotes the total number of steps measured, defined via CONFigure:IQSLot:CONTrol:NOSTeps.

Retrieving Results

The following commands return the results of the I/Q vs. Slot measurement. The subsystem corresponds to the diagrams in the measurement menu I/Q vs. Slot.

FETCh[:SCALar]:IQSLot:FREQuency:OFFSet? Frequency Error Read meas. results (unsynchronized) ⇒ RUN

Returned values: I and Q amplitudes

–30000 Hz to +30000 Hz Average frequency error NAN Hz V3.80

Command descripti on

This command is always a query. It returns the average frequency error determined in the I/Q vs. Slot measurement.

Parameter descripti on Def. value Default unit FW vers.

1100.4984.12 S.6 E-1

R&S CMU-K48 Remote Control Reference (IQSLot)

READ:ARRay:IQSLot:I? All I/Q vs. Slot Results READ:ARRay:IQSLot:Q? READ:ARRay:IQSLot:LEVel? READ:ARRay:IQSLot:PHASe? Start single shot meas. and return results ⇒ RUN

FETCh:ARRay:IQSLot:I? FETCh:ARRay:IQSLot:Q? FETCh:ARRay:IQSLot:LEVel? FETCh:ARRay:IQSLot:PHASe? Read meas. results (unsynchronized) ⇒ RUN

SAMPle:ARRay:IQSLot:I? SAMPle:ARRay:IQSLot:Q? SAMPle:ARRay:IQSLot:LEVel? SAMPle:ARRay:IQSLot:PHASe? Read results (synchronized) ⇒ RUN

Returned values: I and Q amplitudes

–20.0 V to +20.0 V, ..., –20.0 V to +20.0 V

Returned values: Level

–90.0 dBm to +40.0 dBm, ..., –90.0 dBm to +40.0 dBm

Returned values: Level

–180.0 deg to +180.0 deg, ..., –180.0 deg to +180.0 deg

Command descripti on

These commands are always queries. They return the IQSLot values versus time for all steps. The retrieved measurement results must be accordance with the current display format; see CONFigure:IQSLot:SELection.

)

N denotes the total number of steps measured, defined via CONFigure:IQSLot:CONTrol:NOSTeps.

Parameter descripti on Def. value Default unit FW vers.

value for I or Q amplitude

th *)

value for I or Q amplitude

Parameter descripti on Def. value Default unit FW vers.

value for level

th *)

value for level

Parameter descripti on Def. value Default unit FW vers.

value for phase

th *)

value for phase

NAN

V V

dBm dBm

deg deg

V3.80

1100.4984.12 S.7 E-1

Remote Control Reference (IQSLot) R&S CMU-K48

READ:SUBarrays:IQSLot:I? Subarray Results READ:SUBarrays:IQSLot:Q? READ:SUBarrays:IQSLot:LEVel? READ:SUBarrays:IQSLot:PHASe? Start single shot meas. and return results ⇒ RUN

FETCh:SUBarrays:IQSLot:I? FETCh:SUBarrays:IQSLot:Q? FETCh:SUBarrays:IQSLot:LEVel? FETCh:SUBarrays:IQSLot:PHASe? Read meas. results (unsynchronized) ⇒ RUN

SAMPle:SUBarrays:IQSLot:I? SAMPle:SUBarrays:IQSLot:Q? SAMPle:SUBarrays:IQSLot:LEVel? SAMPle:SUBarrays:IQSLot:PHASe? Read results (synchronized) ⇒ RUN

Returned values: I and Q amplitudes

–20.0 V to +20.0 V, ..., –20.0 V to +20.0 V

Returned values: Level

–90.0 dBm to +40.0 dBm, ..., –90.0 dBm to +40.0 dBm

Returned values: Level

–180.0 deg to +180.0 deg, ..., –180.0 deg to +180.0 deg

Command descripti on

These commands are always queries. They return the IQSLot versus time in the subranges defined by means of the CONFigure:SUBarrays:IQSLot command. In the default setting of the configuration command the READ:SUBarrays..., FETCh:SUBarrays..., and SAMPle:SUBarrays... command group is equivalent to the READ:ARRay..., FETCh:ARRay..., and SAMPle:ARRay... command group described above.

Parameter descripti on Def. value Default unit FW vers.

value for I or Q amplitude

th *)

value for I or Q amplitude

Parameter descripti on Def. value Default unit FW vers.

value for level

th *)

value for level

Parameter descripti on Def. value Default unit FW vers.

value for phase

th *)

value for phase

NAN

V V

dBm dBm

deg deg

V3.80

The retrieved measurement results must be accordance with the current display format; see CONFigure:IQSLot:SELection.

)

N depends on the subranges defined via CONFigure:SUBarrays:IQSLot. If one of the statistical modes

* (ARIThmetical, MINimum, MAXimum) or IVAL is set, only one value is returned by subrange.

1100.4984.12 S.8 E-1

R&S CMU Contents of Chapter 1

Contents

1 Preparation for Use............................................................................................. 1.1

Front View .........................................................................................................................................1.1

Rear View ..........................................................................................................................................1.7

Putting the Instrument into Operation .........................................................................................1.10

Unpacking the Instrument ......................................................................................................1.10

Setting up the Instrument.......................................................................................................1.10

Mounting in a Rack.................................................................................................................1.11

Connecting the Instrument to the AC Supply.........................................................................1.11

Switching on the Instrument / Startup Test ............................................................................1.11

Switching off the Instrument...................................................................................................1.13

How to Ensure EMC...............................................................................................................1.13

Input Level..............................................................................................................................1.13

Connecting the CMU to the Test Setup........................................................................................1.14

Connecting a Controller..........................................................................................................1.14

Connecting an External Keyboard..........................................................................................1.16

Connecting a Monitor.............................................................................................................1.16

Connecting a Printer...............................................................................................................1.17

Synchronization with External Devices; Connection of Further Components ........................1.17

Software Update and Version Management ................................................................................1.18

R&S Remote Service Tool.....................................................................................................1.18

Remote Control of the R&S CMU ................................................................................1.25

File Versions.new.........................................................................................................1.26

CMU VersionManager............................................................................................................1.27

RF User Correction.........................................................................................................................1.36

Compiling and Loading User Correction Tables ....................................................................1.37

File Format for User Correction Tables..................................................................................1.39

Ranges of Values and Limitations..........................................................................................1.39

Interpolation Rules .................................................................................................................1.40

1100.4984.12 I-1.1 E-1

R&S CMU Front View

1 Preparation for Use

This chapter describes the controls and connec tors of the Univer sal Radio Com munication T ester CMU and gives all information that is necessary to put the instrument into operation and connect external devices. Notes on reinstallation of the CMU s of tware and a des cr iption of the VersionManager appear at the end of this chapter.

Caution!

Please observe the instructions of the following s ections so that you cannot cause damage to the instrument or endanger people. This is of particular importance when you use the instrument for the first time. Also observ e the general safety instructions

A more detailed description of the har dware connectors and interf aces can be found in chapter 8 of the complete operating manual. Chapter 2 of the operati ng manual provides an introduction to the operation of the CMU by means of typical examples of configuration and measurem ent; for a description of the operating concept refer to Chapter 3.

For remote control of the CMU refer to the general description of the SCPI commands, the instrum ent model, the status reporting system, and measurement control in Chapter 5 of the operating manual.

at the beginning of this manual.

Front View

The front panel of the CMU consis ts of the VGA display with the softkey area (left side) and the hardkey area (right side, see Fig. 1-1). Brief explanations on the controls and connectors of the hardkey area and the rear panel are to be f ound on the next pages. Oper ation by means of s oftk eys is descr ibed in Chapter 3 of the operating manual, Manual Operation.

9 softkeys with

alternating function

ON/Standby key (p .4 )

LC display with

menu example

UNIVERSAL RADIO COMMUNICATION TES TER CMU 200

9 softkeys with

alternating function

Escape key (p.4)

ESCAPE

FUNCTION SYSTEM

DATA

ghi

def

pqr

vwx

symb

mark

ENTER

CONT/HALT

DEL

AUTO

RESET

CTRL

G/n mV

M/µ µV W

k/m dBµV

* dBm dB

UNIT.. .

AUX 1 AU X 2

AF IN AF OUT

SELECT

abc

jkl mno

123

stu

_ µ

Ω

ON / OFF

EXP/CMP

CONTROL

CLR

INS

VOL

INFO

Keys and connectors

HEL P SETUP

VARIATION

RF4 IN

13 dBm

1100.0008.02

DATA 1

DATA 2

AUX 3

SPEECH

RF 2 RF 1

RF 3 OUT

2 W

13 dBm

MAX

50 W

MAX

Bar with 8 h otkeys

Fig. 1-1 CMU front view

1100.4984.12 1.1 E-1

Front View R&S CMU

Data input

Selection of the most important CMU functions via menus

Loudspeaker, for future extensions

PCMCIA interface as an alternative:

Floppy disk drive (option CMU-U61)

Fig. 1-2 CMU front view – hardkeys

FUNCTION Operating manual

)

Chap. 3 Chap. 4

Preselection of the menus:

MENU SELECT Menu selection DATA File manager CTRL For GS Mxxx-MS Signalling tests:

Measurement Wizard

DATA Operating manual

)

Chap. 3

Data input:

0 ... 9 Numerical input (letters for string editors) * . E Special characters, dec. point, hex value "E" # - F Spec. characters, sign change, hex value "F" G/n mV A Factor 10 M/µ µV W Factor 106/10-6, unit, hex value "B" k/m dB µV Factor 103/10-3, unit, hex value "C" *1 dBm dB Factor 100, unit, hex value "D" ON / OFF Switching on/off editors/measurements

EXP/COMP

ENTER Confirmation of entry in editors CONT/HALT Calling/quitting editors,

measurement control

UNIT

For future extensions

/10-9, unit, hex value "A"

1100.4984.12 1.2 E-1

R&S CMU Front View

System control Variation of numeric value s an d

group selection in popup menus

Fig. 1-3 CMU front view – hardkeys

SYSTEM Operating manual

)

Chap. 3

System control:

HELP Displays online help SETUP Instrument settings PRINT Initialize printing of a screenshot

VARIATION Operating manual

)

Chap. 3

Value variation and group selection:

Rotary knob Value variation in input fields and parameters, line selection in tables, field selection in popup menus. Press to expand/compress tables and pull-down lists and to confirm entries and selections.

Cursor key Group selection in popup menus

vertical (vertical)

Cursor key Group selection in popup menus

horizontal (horizontal),

Cursor positioning in editors and

tables

1100.4984.12 1.3 E-1

Front View R&S CMU

Extended editor and instrument control functions

Fig. 1-4 CMU front view – hardkeys

CONTROL Operating manual

)

Chap. 3

Extended control functions:

CLR Clears the complete editor string

Deletes the character to the left of the cursor

(back space)

INS Changes between insertion and overwriting in the editor

DEL Deletes the character marked by the cursor

VOL For future extensions

AUTO For future extensions

INFO System info and hardware diagnosis

RESET Resets to default values

Further Keys Operating manual

)

Chap. 3

ESCAPE

ESCAPE Quits popup menus, closes an editor discarding the entries made

ON/STANDBY Switches between operation (green LED) and standby (orange LED)

1100.4984.12 1.4 E-1

R&S CMU Front View

For future extensions

Auxiliary input/output AUX3

Signals from/to speech codec (option CMU-B52)

AF inputs and outputs

Fig. 1-5 CMU front view connectors

DATA1, DATA2 Operating manual

For future extensions

AUX 3 and SPEECH Operating manual

AUX 3

SPEECH

AF connectors Operating manual

Input and output for status, control, and trigger signals: CMU 300: External trigger signal for

wired synchronization

Signals from/to speech codec (option CMU-B52)

Connectors for audio signals: AUX1/2 Additional input/output for audio signals

that may be used in remote control (secondary audio analyzer)

AF IN/OUT Standard input/output for the (primary)

audio analyzer

Caution: Note the maximum permissible input levels for all

AF connectors according to the data sheet in order to prevent damage to the instrument!

)

Chapter 8, "Hard-

ware connectors"

Chapter 8, "Hard-

ware connectors "

Chapter 8, "Hard-

ware connectors"

Chapter 4, "Audio

Generator and

Analyzer";

Chapter 8, "Hard-

ware connectors"

1100.4984.12 1.5 E-1

Front View R&S CMU

Bidirectional RF connectors RF 1 und RF 2

Sensitive RF input, high-level RF output

Fig. 1-6 CMU front view– connectors

RF connectors Operating manual

Bidirectional RF connectors for various power ranges according to the data sheet.

The two LEDs above the connectors are illuminated as long as the CMU sends signals

Connector with high output level and connector for sensitive RF measurements (antennas). Power ranges according to the data sheet. Maximum permissible input and output level according to the label on the front panel.

The two LEDs above the connectors are illuminated as long as the CMU sends signals

Caution:

Note the maximum permissible input levels for all RF connectors according to the label on the front panel or the data sheet in order to prevent damage to the instrument! RF connectors may warm up very much when high RF power is fed in!

or is ready for reception .

)

Chapter 8, "Hardware

connectors "

Chapter 8, "Hardware

connectors"

1100.4984.12 1.6 E-1

R&S CMU Rear View

Rear View

Synchronization inputs and outputs, IF interface (with option CMU-B17)

Interfaces for remote control

Signal inputs and output s

Fig. 1-7 CMU rear view

and peripheral equipm e nt

Mains switch Operating manual

Mains connector w ith sw itch

Mains power switch

Mains connector

Interfaces Operating manual

GPIB-bus connector (IEEE 488 / IEC 625),

Parallel interface: 25-contact printer connector, Centronicscompatible

Connector for serial interface 1: 9-contact Sub-D connector

Connector for serial interface 2: 9-contact Sub-D connector

Connector for an external VGA monitor: 15-contact Sub-D connector

USB connector for external keyboard only (not for other pointing or storage devices)

) )

)

Chapter 1, "Switching on the Instrument,

Startup test"

Chapter 1, "Connecting the instrument to the

AC supply”

Chapter 8, "Hardware Interfaces "

Chapt. 1, "Connecting an Output Device"

Chapter 8, "Hardware Interfaces”

Chapter 1, "Connecting a Monitor"

Chapter 8, "Hardware Interfaces”

Chapter 1, "Connecting an External Keyboard"

Chapter. 8, "Hardware Interfaces”

1100.4984.12 1.7 E-1

Rear View R&S CMU

Inputs and outputs for reference frequency and network-specific clock frequenc

Intermediate frequency from C MU rece iv er , IF inter f a ce

Auxiliary and service connectors, I/Q interface

Fig. 1-8 CMU rear view – signal inputs and outputs

Intermediate frequency Operating manual

IF3 RX CH1 (BNC connector) from CMU receiver

Reference frequency Operating manual

REF IN Input for external reference frequency REF OUT 1 Output of reference frequency of CMU:

10 MHz or the signal of input REF IN REF OUT 2 Output for network-specific clock

frequency

)

Chapter 8, "Hardware

Connectors"

Chapter 8, "Hardware

Connectors

Chapter 3, "RF

Connection

Control"

Caution!

AUX, SERVICE, AUX4, extensions Operati ng man ual

1100.4984.12 1.8 E-1

Do not use open or unshielded cables in order to comply with EMC directives!

Two 9-contact and one 15-contact SUB-D connectors:

AUX Auxiliary connector providing a DC voltage to supply external equipment such as CMU-Z6

SERVICE Service connector for RXTX board

(only for internal test purposes)

AUX4 Bidirectional input/output for digital

status, control, and trigger signal

The remaining 15-contact SUB-D connectors are reserved for future extensions.

)

Chapter 8, "Hardware

Connectors

Chapter 8, "Hardware

Connectors

R&S CMU Rear View

IF interface

Option CMU-B82 Access Board for CDMA Sign. Units

I/Q interface

Fig. 1-9 CMU rear view – I/Q-IF inputs and outputs

Option CMU-B87 Message Monitor for CDMA2000

I/Q-IF Interface (CMU 200 with option CMU-B17) Operating manual

Four 50 Ω BNC connectors for option CMU-B17, I/Q and IF Interface:

IF3 RX CH1 IN RX path, IF IN IF3 RX CH1 OUT RX path, IF OUT IF3 TX CH1 IN TX path, IF IN IF3 TX CH1 OUT

15-contact SUB-D connector for input and output of I/Q signals (option CMU-B17, I/Q and IF Interface)

The SUB-D connector below IQ CH 1 is not used.

TX path, IF OUT

)

Chapter 4, "Hardware

Connectors"

Chapter 8, "Hardware

Connectors"

Chapter 8, "Hardware

Connectors"

Optional interfaces for data applications (CMU 200)

Digital I/Q connector for option R&S CMU-B82, Access Board for CDMA

Signalling Units

Ethernet connector e.g. for option R&S CMU-B87,

Message Monitor for CDMA2000

An additional Ethernet connector can be fitted below, e.g. for option R&S CMU-Z46, WCDMA Message Analyzer and Recorder.

)

Installation

instructions for

options

Installation

instructions for

options

Note: Some opt ions require additional rear panel c onnectors. E.g. the Abis connector s for R&S

CMU 300 with option R &S CMU-B71 are d escribed in Chapter 8 of this operati ng manual and in the CMU 300 Quick Start Guide.

1100.4984.12 1.9 E-1

Putting the Instrument into Operation R&S CMU

Putting the Instrument into Operation

This section describes the basic steps to be taken when setting up the CMU for the first time.

Caution!

Please make sure to observe the ins tructions of the following sections so that you cannot cause damage to the instrument or endanger people. This is of particular importance when you use the instrument for the first time.

Unpacking the Instrument

¾ T ake the instrument out of the shipping box and check whether the

items listed in the pack ing list (see separate yellow sheet after the title page of this manual) are all included.

¾ Remove the two protective caps fr om the front and r ear of the CMU

and carefully check the instrument for damage.

remove protective caps

Should the instrument be damaged, im m ediately notify the forwarder who shipped the instrument to you and keep the box and packing material.

For further transport or shipment of the CMU the original packing should be used, too. It is recommended to keep at least the two protective caps for front and rear side in order to prevent damage to the controls and connectors. T he caps ar e also neces sary if the CMU is transported in its transit case that can be ordered from Rohde & Schwarz.

Setting up the Instrument

Permissible operating positions of the CMU

• Horizontal position, standing on the feet:

• For applications in the laboratory or on a work bench, it is recom m ended that the support f eet on the

bottom of the instrument be extended. For the LCD dis play, this provides the optimum viewing angle which typically ranges from perpendicular to the display front to approximately 30° below.

Notes: For safe and convenient operation of the instrument note the following:

Warning!

The feet must be fully folded in or out. Only in this way can the stability of CMU be guaranteed and reliable operation be ensured. With the feet out, the weight of other units put onto CMU must not exceed 30 kg. The units must be secured against slipping (e.g. by locking the feet of the unit at the top side of the enclosure).

When moving the unit with the feet out, the feet might collapse and fold in. To avoid injuries, the unit must therefore not be moved with the feet out.

¾ Do not cover the rear and lateral ventilation holes. ¾ Note the permissible ambient temperature according to the data sheet. ¾ Avoid moisture condensation. If it occurs, the instrument must be wiped dry before

switching on.

1100.4984.12 1.10 E-12

R&S CMU Putting the Instrument into Operation

¾ Note the warm-up time of the tem perature- controlled O CXO r eferenc e oscillator (Option

CMU-B11/B12), see data sheet.

Mounting in a Rack

Using the adapter ZZA-411 (order num ber 1096.3283.00) the instrument can be m ounted in 19" racks according to the mounting instructions supplied with the rack adapter.

Note: For convenient operation of the instrument note the following:

¾ Allow for sufficient air supply in the rack. ¾ Make sure that there is sufficient space between the ventilation holes and the rack

casing.

Connecting the Instrument to the AC Supply

The CMU may be connected to one-phase AC supplies with nominal voltages ranging from 100 V to 240 V and nominal frequencies ranging from 50 Hz to 400 Hz (see inscription on the rear panel and data sheet). Depending on the options installed, the power consumption ranges from 120 W to 230 W.

Note: The CMU is automatically adapted to the AC supply voltage applied. External

Caution!

After moisture condensation, allow the instrument to dry before switching on. Note the permissible ambient temperature according to the data sheet. Do not cover the lateral and rear ventilation holes.

switchover or adaptation of the fuses are not necessary.

For the mains connection use the supplied mains connector.

Mains connector

As the instrum ent is designed according to the regulations for safety class EN61010, it must be connected to a grounded power outlet.

Switching on the Instr ument / Startup Test

The CMU can be switched on using the mains switch at the rear of the instrument and the ON/STANDBY key at the bottom left of the instrument front.

1100.4984.12 1.11 E-12

Mains switch

The mains switch can be set to two positions: 0 The 0 position implies an all-pole disconnection of the instrument

from the mains.

I In the I position, the instrument is in standby mode or in operation,

depending on the position of the ON/STANDBY key at the front of the instrument.

Putting the Instrument into Operation R&S CMU

STANDBY

ON/ STANDBY

key

Start procedure

Startup menu

The ON/STANDBY key activates two different operating modes indicated by colored LEDs:

Standby Only the OCXO ref erence frequency oscillator (Option CMU-

B11/B12), if installed, is supplied with operating voltage. The orange LED (STANDBY) on the right is illuminated.

Operation In this operating mode, all modules of the instrument are

supplied with operating voltage. T he green LED (ON) on the left is illuminated.

¾ To switch on the CMU set the mains switch to the position I. The CMU enters standby mode.

• Set the CMU to operating mode by pressing the ON/STANDBY key once.

Caution! When switching on the CMU, no disk should be inserted in the

drive; otherwise, one of the actions stored on the flas h disk will be performed.

After activation of the operating m ode, the startup menu appears for a few seconds. While it is displayed the CMU performs a startup test.

Displays in startup menu

The display windows of the startup menu provide information on

• The startup procedure (Process)

• Instrum ent model, serial num ber and version of the CMU base software

(Info).

• Installed hardware and software options and equipment (Options).

Available software options are listed with their version numbers.

• Progress of the startup procedure (Startup bar graph).

After terminating the startup pr ocedure, the instrument changes to the last main menu or graphical measurement menu of the previous session.

1100.4984.12 1.12 E-12

R&S CMU Putting the Instrument into Operation

Switching off the Instrument

In order not to lose any settings that have been made, proceed in the following order to switch off the CMU:



Remove any storage medium from the PCMCIA interface or floppy disk

drive.



Shortly press ON/STANDBY to initiate the shutdown process and save

the current data to the internal hard disk.



Wait until the shutdown process has been terminated before setting the

mains switch at the rear to the 0 position.

Note: Instruments equipped with a Front Module controller FMR 6

display the message Shutdown in Progress after the ON/STANDBY key has been pressed. Keeping ON/STANDBY pressed for about 4 s on those instruments initiates a hardware shutdown where data may be lost.

How to Ensure EMC

In order to avoid electromagnetic interference, the instrument may only be operated when it is closed and with all shielding covers fitted.

REF OUT 1 and REF OUT 2: Use doubleshielded cables and match signal with 50 Ω in order to comply with EMC directives!

Input Level

Caution!

− In order to prevent damage to the instrument note the maximum permissible input levels at the AF inputs AF IN and AUX 1 as well as for the RF inputs RF 1, RF 2 and RF 4 IN at the front of the instrument.

1100.4984.12 1.13 E-13

Connecting the CMU to the Test Setup R&S CMU

Connecting the CMU to the Test Setup

Warning:

Connect external devices and peripherals only when the instrument is switched off or in STANDBY mode. Otherwise, future errors cannot be excluded.

Connecting a Controller

The CMU can be connected to an external contr oller via the GPIB bus (IEEE bus according to standard IEEE 488; throughout this doc umentation we will prim arily use the term G PIB bus which is also used in the operating menus and in the SCPI command syntax) or via serial interface:

Connection via GPIB bus

IEEE 48 8

625

The CMU is c onnected to the GPIB interface of the controller via the GPIB bus connector (IEEE 488 / IEC 625) at the rear of the instrument and a shielded cable. The technical spec ific ations of the GPIB interf ace ar e listed in section "Hardware Interfaces " in Chapter 8.

GPIB Bus Configuration

In the default configuration the CMU accepts commands from either the GPIB or COM 1 interface. The param eter s f or GPIB bus c ontrol of the CMU are set in the Remote tab of the Setup popup menu (in the following abbreviated by Setup – Remote, see also chapter 4, Settings for Remote Control).

¾ To open the Setup - Remote menu, press the SETUP k ey at the front of

the instrument and activate the Remote hotk ey at the lower edge of the screen.

¾ Use the rotary knob to move the f ocus onto the SCPI Connection section

of the Setup table. If necessary, press the rotary knob or the ON/OFF key to expand the parameters in the table (see Chapter 3).

¾ In the Port table row select either GPIB + Com 1 or GPIB bus interface

for transmission.

1100.4984.12 1.14 E-12

R&S CMU Connecting the CMU to the Test Setup

The bus address is factory-set to 20. It can be changed in the Primary Address input field.

Connection via serial interface

COM 1

Selection

The CMU can be connected to the serial interface of a controller via one of the serial interfaces COM 1 or COM 2 and a so- called null-modem cable. The pin assignment and wiring of a null-modem cable are described in section Handshake of chapter 8. The tec hnic al spec if ic ations of the s erial (RS-232- C) interface are also discussed in chapter 8 (refer to section Hardware Interfaces).

Either a 25-pin or a 9-pin connector can be us ed on the c ontroller s ide. It m ay be necessary to use an appropriate adapter (see chapter 8, Hardware Interfaces).

In the default configuration the CMU accepts commands from either the GPIB or COM 1 interface. The COM 2 interface must be selected explicitly.

¾ Proceed as described above to activate the Remote tab of the Setup

menu.

¾ In the Port table row, select GPIB + Com 1 or COM 1 or COM 2 to

activate one of the RS-232 interfaces for data transfer.

Configuration

After selection of a serial interf ace, the transmis sion parameters mus t be set to comply with the parameters of the addres sed device. This is done in the Comm. (communications) tab of the Setup menu:

¾ To open the Setup – Comm. tab press the SETUP key at the front of the

instrument and activate the Comm. hotkey at the lower edge of the screen.

¾ In the table section corresponding to the selected COM port check the

settings for the Baudrate, Data Bits, Parity, and Protocol.

1100.4984.12 1.15 E-12

Connecting the CMU to the Test Setup R&S CMU

Connecting an External Keyboard

USB

The key assignment can be changed in the Misc. tab of the Setup menu:

An external PC keyboard to the CMU can be connected to the USB connector at the rear of the instrum ent. An external keyboard facilitates the input of numbers and texts.

For the interface description see section "Hardware Interfaces" in chapter 8.

Language assignment ¾ T o open the Setup – Misc. tab press the SETUP key at the front of the

instrument and activate the Misc. hotkey at the lower edge of the screen.

¾ Use the rotary knob to select Keyboard and set the desir ed language (US

or German).

Connecting a Monitor

MONITOR

An external VGA monitor can be connected to the 15-contact Sub-D connector at the rear of the instrument.

For the interface description see section "Hardware Interfaces" in chapter 8.

1100.4984.12 1.16 E-12

R&S CMU Connecting the CMU to the Test Setup

Connecting a Printer

LPT

A printer can be connected via the 25-contact parallel interfac e LPT at the rear of the ins trument (rec omm ended) or one of the serial inter faces COM 1 or COM 2. For the interface description see section "Hardware Interfaces" in chapter 8.

The printer type and port must be set in the Print tab of the Setup menu:

¾ To open the Setup – Pr int tab press the SETUP key at the front of the

instrument and activate the Print hotkey at the lower edge of the screen.

¾ In the Printer section set the printer type and port (COM 1 or COM 2 for

the serial (RS-232) ports; LPT 1 for the parallel printer port).

It is recom m ended to c onnect the output device to the par allel interfac e LPT, if possible: With this selection, configuration of the interfac e is not necessary; besides, the serial connectors may be used for GPIB bus etc.

Synchronization with External Devices; Connection of Further Components

REF IN REF OUT 1 REF OUT 2

The three BNC female connectors REF IN, REF OUT 1, REF OUT 2 are provided for synchronization of the CMU with external devices.

1100.4984.12 1.17 E-12

Software Update and Version Management R&S CMU

Software Update and Version Management

Your CMU was delivered with the latest software and firmware version available. New firmware can be easily installed via the floppy disk drive (option CMU-U61) or the PCMCIA interf ace on the front of the instrument.

Note: When copying an installation version to a PCMCIA card or floppy, ens ure that all folders

containing a base system version or network option (the lowest-level folders in Fig. 1-9

below) are in the root directory. Otherw ise the CMU will not be able to detect the firmware

and start the installation. If a Versions.new text file (see section File Versions.new on p. 1.26 ff.) is used, it must also be in the root directory of the external storage medium.

New software options must be enabled by means of a key code entered in the Setup –

Options menu (see chapter 4). This is necessary only once; all options remain enabled after a software update.

Installation of new firmware versions and the use of different applications and versions on the same instrument is made easier by the following tools:

• The R&S Remote Service Tool (see p. 1.18 ff.) transfers software versions to the instrument.

• The VersionManager (see p. 1.27 ff.) is designed to manage diff erent software versions stored on

the instrument.

Installation instructions are also given in Chapter 1 of the operating manuals for the individual s oftware options.

R&S Remote Service Tool

The R&S Remote Service T ool organizes the exchange of data between the R&S CMU and an external PC or laptop, in particular to:

• Copy software versions and install them on the R&S CMU.

• Copy or move data files (e.g. screenshots created with the Print menu of model R&S CMU).

• Send remote control commands to the instrument.

The tool is available for download on the CMU Customer Web (https://gloris.rohde-

schwarz.com/gloris/1cmp/cmucustomer/index.html). It consists of a s ingle *.exe f ile which c an be copied

to any directory. When the executable file is started (double-clicked), the R&S Remote Service Tool opens the following main application window.

1100.4984.12 1.18 E-12

R&S CMU Software Update and Version Management

Fig. 1-9 Remote Service Tool main screen (example)

Connecting the R&S CMU

Installing software versions

The R&S Remote Service T ool can communicate with the R&S CMU via the GPIB (IEEE 488) or a RS-232 interface. To ensure fast transmission, it is recommended to use the GPIB interface, connecting the GPIB cable to the IEEE 488 / IEC 625 connector on the rear panel of the instrument.

Note: The GPIB settings of the Remote Service Tool and of the R&S

CMU must be the same. Refer to section Connecting a Controller on p. 1.14 to learn how to configure the R&S CMU’s GPIB settings.

1. Connect the GPIB cable to the IEEE 488 / IEC 625 connector on the rear panel of the instrument.

2. Start the Remote Service Tool.

3. Click the Options menu and make sure that Use GPIB is selected.

4. Click Options – GPIB Options and check that the Board Index and Primary Address settings are equal to the R&S CMU configuration (CMU default settings: board index GPIB0, primary address 20).

To copy a new software version to the CMU…

1. Switch on and start up your R&S CMU.

2. Select Applications – Version Copy from the menu bar of the Remote Service Tool.

3. In the Version directory of the main application window, select the folder from where you want to copy your software version and click Next >>>.

1100.4984.12 1.19 E-12

Software Update and Version Management R&S CMU

4. Select the software version you wish to install and click Start >>>.

The software version is copied to the internal drive C:\INTERNAL\INSTALL of your R&S CMU. In addition, a text file named Versions.new (see section File

Versions.new on p. 1.26 ff.) is generated and copied to the same directory.

With def ault installation options (see figur e above), the following happens after the file transfer is completed:

• The CMU is rebooted and the new software version is installed and

activated.

• The Remote Service Tool is closed automatically.

Old software versions are not affected. You can delete or activate an old software version using the Version Manager (see p. 1.27 ff.).

Listing and modifying software versions

1100.4984.12 1.20 E-12

The Remote Service Tool can not only install firmware versions but also display and modify the installed firmware configurations.

To list the firmware configurations installed on your CMU… ¾ Click Application – List Software.

R&S CMU Software Update and Version Management

The list of installed versions has a tree structure. Each expandable node contains a software c onfiguration consisting of one base system version and one or more network options. The active configuration is marked as (active) and also displayed in the title bar of the Remote Service Tool. You can use the controls on the left side to do the following:

• Select a configuration in the list and click Activate to label the configur ation

active.

• Select a configuration in the list which is not the active configuration and

click Delete to label the configuration deleted. Repeat this for all configurations you wish to delete.

Labeled configurations are not deleted immediately. You can simply Restore any configuration that you labeled inadvertently.

¾ Click Perform Actions to activate and/or delete the labeled configurations. The labeled configurations are written to the Versions.new text file (see section

File Versions.new on p. 1.26 ff.) which is copied to the internal drive

C:\INTERNAL\INSTALL of your R&S CMU. In the default conf iguration where Force device reboot is enabled, the R&S CMU is rebooted im m ediately so that the VersionManager can activate and delete the labeled configurations.

Tip: Disable Force device reboot in case you wish to postpone the

actions until next time you switch on your instrument.

Copying files To transfer a file from the CMU to the PC or vice versa…

1. Switch on and start up your R&S CMU.

2. Select Applications – File Transfer from the menu bar of the Remote Service Tool.

The main application window shows the directories and files on your PC and on the INTERNAL directory of the CMU’s hard disk.

1100.4984.12 1.21 E-12

Software Update and Version Management R&S CMU

Extracting screenshots

3. Select a directory, a file or several files and use the commands in the FileCtrl menu to initiate the file transfer. You can also right-click the file list to open the equivalent context menu.

A screenshot transferred by means of the Remote Service Tool can be viewed and copied to the clipboard so that you can use it in another application.

To generate, transfer and further process a screenshot…

1. Press the PRINT button on the front panel of the CMU to open the Print dialog, select Internal WMF as a destination and specify a file name <file>.wmf for the generated image file (without adding a path).

2. Press OK to write the file to the INTERNAL\USERDATA\PRINT directory of the CMU.

3. Proceed as described above to transfer the file <file>.wmf from the CMU to your PC.

4. Double-click the transferred file (alternative: select the file and press Enter).

The Remote Service Tool acts as a viewer for the file:

5. Right-click to open a context menu and either copy or close the file.

Remote control of the R&S CMU

1100.4984.12 1.22 E-12

You can use the Remote Service Tool to transfer remote control commands or command scripts to be executed on the R&S CMU.

To transfer a single command or command sequence…

1. Click Applications – Command to activate the remote control screen.

R&S CMU Software Update and Version Management

2. Select the appropriate function group in the Secondary address mapping panel.

3. Enter a command in the Enter remote command… input field and press Enter.

4. Repeat steps 2 and 3 for all commands you wish to execute.

To execute a command script…

5. Generate an ASCII text file of remote control commands, either manually or by saving a previously transferred command sequence (Save… button in the remote control screen.

6. In the remote control screen, click Load… and open the file.

The script is transferred and executed automatically. The remote control screen provides further control elements to make the command transfer more convenient; see section Remote Control of the R&S CMU on p. 1.25 ff.

Table 1 Overview of R&S

Menu Command Function

File Application

Close Close the Remote Service Tool. Version Copy Copy a s oftware version to the R&S CMU. See the appli cation

List Software Display of all software configurations instal l ed on the R&S CMU

Command Transfer of remote control commands or command s cripts to be

File Transfer Transfer of data between a PC and the R&S CMU. This

Error Reports For f ut ure extens i ons

Remote Service Tool functions

example Installing software versions above.

and activate and/or delete conf i gurat ions. See the application example Listing and modifying s oftware versions above.

executed on the R&S CMU. This com mand activates an additional Cmd Ctrl menu to generate log files and customize the screen. See application exampl e Trans ferring remote control commands above and section Remote Control of the R&S CMU on p. 1.25 ff.

command acti vat es an additional FileCtrl menu to create directories, copy or delet e f i les. See application examples Copying files and Extracting screenshots above.

1100.4984.12 1.23 E-12

Software Update and Version Management R&S CMU

Menu Command Function

Options

Help

Use GPIB Use the GPIB bus for com munication with the R&S CMU.

Note: This communication mode is recommended.

USE RS232 Use the RS 232 bus for communication with the R&S CMU.

Note: Use the RS 232 Options quoted below if you choose t hi s communicati on mode.

GPIB Options Change GPIB connection parameters. The def aul t settings for the

R&S CMU are: Board Index: 0

Primary Address: 20 Note: The GP IB settings of the Remote Service Tool and of the

R&S CMU must be the same. Refer to secti on Connecting a

Controller on p. 1.14 to learn how to configure the R&S CMU’s

GPIB settings.

RS232 Options Change RS232 transmission parameters. The foll owing set tings

ensure a reliable connection: Baud Rate: 115200

Data Bits: 8 Stop Bits: 1 Parity: None Protocol: Ct sRts (do not change!)

Note: The RS 232 settings of the Remote Service Tool and of the R&S CMU must be the same. Refer to secti on Connecting a

Controller on p. 1.14 to learn how to configure the R&S CMU’s

RS232 settings. Shoul d you experience any probl ems with the data transfer, first check and possibly exchange the c onnecting

cable. Device Clear Clear the screen. Go to Local Exit remote control mode and return to manual operation. Device Reboot Reboot the R&S CMU.

About Shows an inf ormation box with the current version of the Remote

Service Tool.

1100.4984.12 1.24 E-12

R&S CMU Software Update and Version Management

Remote Control of the R&S CMU

The remote control screen trans fers remote c ontrol commands or command sc ripts to be executed on the R&S CMU; see application exam ple Remote control of the R&S CMU on p. 1.22. It is opened by clicking Application – Command.

Fig. 1-10 Remote control screen The comm ands to be exec uted are entered in the Enter remote command… input field; the responses of

the R&S CMU and possible error messages are displayed below. Besides the remote control screen provides the following control elements:

Execute all commands

Report Display / Report File

Load / Save

Clear Refresh sec.

address mapping

Execute all comm ands entered since the Remote Service Tool was started or since the list was cleared. The com plete comm and list appears in a pull-down list associated with the Enter remote command… input field.

Display the remote report on the R&S CMU’s remote screen and create a report file. These functions are identical with the Report Display and Report File hotkeys in the CMU’s remote screen.

Load an ASCII text file (default ex tension: *.lst, can be changed at will), with a command sc ript to be executed or save the current comm and list to a text file file.

Clear the current command list. Refresh the list of assigned secondary addresses and function groups, e.g.

after the m apping was changed on the R&S CMU. Comm ands are sent to the secondary address selected in the list.

1100.4984.12 1.25 E-12

Software Update and Version Management R&S CMU

While the remote control screen is active, an additional Cmd Ctrl menu is available:

Table 2 Overview of Cmd Ctrl menu in the Remote Service Tool

Command Function

Filename…

Logging Toggle funct i on: Enable or disable logging. Append File Toggle funct ion: If enabled, new information is appended at the end of the log file. Otherwise the log

Button Setup Open a dialog to create comm and buttons, to be used as short cuts for manual entry of f requently

Call up an Open File dialog to define the name and location of a log file containing all executed commands and devic e responses. The responses c an be up t o 2 MB yt e i n size, so the log file information is often more complete t han t he remote report displayed on the ins trument’s remote screen.

file is overwritten at the beginning of each Remote Service Tool session.

used commands. The command buttons idn, opc, and Reset in Fig. 1-10 on p. 1.25 are created as follows:

File Versions.new

The Versions.new file stores the software configurations that the R&S CMU VersionManager has to install, delete, or activate. The following Versions.new file initiates the installation of a software configuration containing a base system, a GSM network option package, and a IS136 package:

BASE3x60.i35 GSMS3x60.i35 IS1M3x60.i35 Automatic Install

Creating a Versions.new file

The file is most conveniently created using the Remote Service Tool; see application examples Installing software versions on p. 1.19 and Listing and

modifying software versions on p. 1.20. T he Remote Service Tool also copies

the file to its location on the CMU’s internal hard disk (C:\INTERNAL\INSTALL) so that it will be executed when the VersionManager is started.

Alternatively, the file can be created manually and copied to the C:\INTERNAL\INSTALL directory or to the root directory of a PCMCIA card/floppy disk.

Restrictions

The information in the Versions.new file must be unambiguous: Only one software configuration with 1 base system sof tware can be installed at once.

1100.4984.12 1.26 E-12

R&S CMU Software Update and Version Management

Alternatively, the file may list several network options to be combined with an already installed, compatible base system version.

Only one software configuration can be active, however, several configur ations can be deleted together. T o avoid errors, it is recommended to use diff erent files for installation and deletion/activation.

Typical application ¾ Copy a Versions.new file to the root direc tory of a PCMCIA card containing

several installation versions and insert the card into the R&S CMU’s PCMCIA slot.

After the instrument is booted, the VersionManager is started automatic ally and installs the software packages listed in the file.

CMU VersionManager

The VersionManager is a tool designed to activate, delete, install, combine, or list different software versions in a convenient way. Moreover, it provides information on the hardware and software configuration of the instrum ent (Edit service tables, Scan disk ), resets the startup settings stored in the

non volatile ram, copies information to an external storage medium (Write log files to disk, List all versions to disk), and loads and ac tivates user correction tables (see section RF User Correction on p.

1.36 ff.).

The VersionManager is part of each CMU firm ware version. It is opened automatically after the boot-up process if the CMU detects a storage medium in its floppy disk drive/PCMCIA slot that contains an installation version of the CMU firm ware. Alternatively, it can be called up by pressing the Menu Select key after the boot-up sequence is term inated (from the moment when the CMU display turns black until the end of the 3-beep acoustic signal).

with floppy / PCMCIA card or

SELECT

Fig. 1-9 VersionManager main screen (example) The different functions of the VersionManager are activated by pressing the corresponding softkeys.

Some of them ( labeled optional below) are available in a particular configuration of the hard disk only. The upper two softkeys in both softkey bars are not assigned.

Activate other software (optional)

Activate other software opens a list of all firm ware configurations stored on the CMU hard disk except the curr ent configuration. Therefor e, this function is not available if the hard disk contains only a single configuration (to retrieve information, List software can be used instead).

1100.4984.12 1.27 E-12

Software Update and Version Management R&S CMU

Delete software

(optional)

Each entry in the list corresponds to a firm ware configuration consisting of exactly one CMU base soft ware version (top level on the lef t side) plus a set

of associated options

(network tests, second level). The version to be activated is displayed in red color on top of the list. To select another version, the list can be scrolled using the rotary knob or the cursor keys.

Activate Activate the current firmware configuration. Back to previous screen Close the current s creen and go back to the main

screen. This option is identical in all

VersionManager submenus.

Info Open the Info screen associated with the current

screen; see Info on p. 1.34. This option is identical in all VersionManager submenus.

Delete software opens a list of all firm ware c onf igurations s tored on the CMU hard disk. The dialog can be operated as explained above; see Activate software. The last firm ware configuration can not be deleted, so this func tion is not available if the hard disk contains only a single configuration.

Delete Delete the current firmware configuration. If the active firmware configuration is deleted, the CMU asks which of the

remaining versions shall be activated:

Several related options may be displayed in a single line. These combinations of options can be installed together and will be simply referred to as "options" through the

remainder of this section.

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R&S CMU Software Update and Version Management

Activate Activate the current firmware configuration.

Install software...

Install software... opens a list of all fir m ware installation versions available on an external storage medium (floppy disk/PCMCIA card). As explained in

Table 1-3, this function depends on the type and number of storage media

and on the number of installation versions available.

Table 1-3 Software installation with the VersionManager

Storage medium with FW installation version

Floppy 1 several

PCMCIA card in slot 0 or 1 (right or left s i de)

several

PCMCIA card in slot 0 and in slot 1

several

Number of FW installation versions

1 (per PC-card)

VersionManager function

Install software version <version> from floppy Install softw are from floppy

–> Open software version selection dial og (see below).

Install software version <version> from PC-card slot <slot_no>

Install software from PC-card slot <slot_no>

–> Open software version selection dial og (see below).

Install softw are version <version> from PC-card

–> Open PC-card selection dialog (s ee bel ow).

Install software from PC-card

–> Open PC-card selection dialog (s ee bel ow).

PC-card

selection dialog:

The PC-card selection dialog selects either PCMCIA card slot 0 (r ight side) or slot 1 (left side) for installation.

Media without FW installation versions are ignored.

1100.4984.12 1.29 E-12

Software Update and Version Management R&S CMU

Install software... Select the card in slot 0 or slot 1 as an installation

medium. If the medium contains several installation versions, the software version selection dialog is called up, see below.

Software version

selection dialog:

Upgrade options: In contrast to the Activate software dialog, the software selection dialog

The software version selection dialog lists all installation versions on the current medium (floppy, PCMCIA card). The dialog can be operated as explained above; see Activate software.

Install Install the current firmware version.

handles base software versions and network options separately. As a consequence, differ ent versions of the base sof tware can be combined with different options to create new firmware configurations. For example, it is possible to update the base software without affecting the associated network options or vice versa. Moreover, the same base software version can be installed several tim es and combined with different network options (and vice versa), so it m ay enter into several firmware configurations. The following simple rules apply:

• W ith a new version of a network option, it is only possible to update one

of the existing configurations. The following selection dialog is automatically skipped.

• With a new base software version, it is possible to either update an

existing configuration or create a new one. A dialog selecting between the two alternatives is opened:

1100.4984.12 1.30 E-12

R&S CMU Software Update and Version Management

Note: This dialog is skipped if the new base software

version is not compatible with any of the existing configurations. An incompatible new base software must be installed as a new base software.

Install as new base Create a new configuration based on the base

software to be installed. The upgrade s election dialog described below is sk ipped. Network options can be assigned to this base software in a second stage of the installation.

Upgrade existing v. Select an exis ting configuration and replace the base

software of this version. To this end, the upgrade selection dialog described below is opened.

Force verm update If the option is checked the cur rent VersionManager is

overwritten every time that a new base system is installed, even if this means a downgrade of the VersionManager version. This feature is pr imarily for service purposes.

After selection of an upgrade software version compatible with one of the configurations stored on the hard disk , the upgrade selection dialog is called up:

Upgrade Replace the bas e software vers ion or network option selec ted

in the software version selection dialog.

Alternatively, if none of the configurations stored on the hard disk is compatible with the software version selected, an error message is displayed. E.g., for an incompatible Bluetooth version:

1100.4984.12 1.31 E-12

Software Update and Version Management R&S CMU

Terminating the

software update:

Back to... Close the current sc reen and go back to the software v ersion

selection dialog to select a compatible software version.

After successf ul installation of each software version the CMU displays the following screen:

Install next software... Go back to the software version selection dialog to

select additional software modules to be installed in the same VersionManager session. This function depends on the storage media and the number of software installation versions available; s ee Table 1-3 on page 1.29.

Change disks Update the current screen after a change of the

storage medium.

Finish installation Close the VersionManager and reboot the CMU

(remove the external disk from the disk drive). The installed firmware c onfigurations are then operational. The last configuration ins talled is taken as the active configuration in the subsequent measurement session.

Note: Notice messages after firmware updates

In most cases firmware updates don’t affect the accuracy of the

measurements. There are some exceptions where a correction procedure must be executed in the Maintenance menu after the fir mware update. The R&S CMU displays a notice message whenever this happens. The box contains the name of the required correction proc edure and appears during startup until the correction has been performed.

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R&S CMU Software Update and Version Management

Lack of disk space: Before installing the next sof tware version, the CMU checks whether there is

enough disk space on the hard disk. If not, the following dialog is displayed:

List software

Firmware update after board change(…)

Edit service tables

Delete Delete the current version and return back to the

previous screen.

List software opens a list of all available firmware configurations. It is possible to activate and delete conf igurations fr om the list; see des cription of Activate software and Delete software functions above.

This function depends on whether a user correction file named USERCOR1.DAT is stored in the directory INTERNAL\USERCOR\ of the internal hard disk.

• If no user correction file is available, Firmware update after boar d change

performs an update of the current firmware including a complete CMU hardware detection. No external installation disk is required. The update takes som e time and should be attempted in case of problems or after a modification of the CMU hardware configuration only (also after a combined hardware/software exchange).

• If a user correct ion file is found, Firmware update after board change…

opens a submenu to activate or deactivate the RF user correction; see section Compiling and Loading User Correction Tables on p. 1.37 ff.

Edit service tables calls up the Service Table Editor menu showing all hardware modules that are possibly fitted in your instrument. For service purposes, further information can be obtained by typing a particular board name and board index in the two lines below the table.

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Software Update and Version Management R&S CMU

Exit Write log files to disk

Delete non volatile ram

Scan disk

List all versions to disk

Copy non volatile ram to disk

Defragment disk

Exit closes the VersionManager and resumes the CMU start-up procedure. Write log files to disk c opies all *.log files stored on the CMU hard disk to an

external storage medium (floppy or PCMCIA card). The *.log s ource files on the hard disk are not deleted.

The Write log files to disk f unction opens a blue mess age box indicating the storage capacity of the external disk needed. The *.log files can be distributed over several disks. If no disk is available, the VersionManager displays a warning and does not start copying.

Delete non volatile ram deletes all entries stored in the non volatile ram of the CMU. This m emory contains particular settings of the last CMU session that can be reused in the next session (e.g. the last active function group and measurement menu, special configuration etc.).

Deleting the non volatile ram can be useful after an abnorm al termination of a CMU measurement session.

Note: The s ettings s tor ed in the non volatile r am c an also be wr itten to

a configuration file and reused in later sessions; see Chapter 3, section Saving Configurations.

Scan disk closes the VersionManager, ex ecutes the MS Scan Disk program

and finally returns you to the VersionManager. Refer to your Scan Disk documentation for further information.

Note: This function is not available while a base software version

<V3.00 is active.

List all versions to disk writes the s oftware configurations indicated via List software to an ASCII text file that is stored on the external disk.

Copy non volatile ram to disk copies the contents of the non volatile ram to

the external disk (floppy, PCMCIA). In this way, the settings stored in the non volatile ram can be used on another CMU.

Defragment disk closes the VersionManager, executes the MS Defrag.exe program and f inally returns you to the VersionManager. Defragmenting the hard disk is suitable to improve performance after installing and deleting many different software versions. Refer to your Defrag.exe documentation for further information.

Note: This function is not available while a base software version

<V3.00 is active.

Info

1100.4984.12 1.34 E-12

Info opens an output window displaying information on the current screen. Separate Info windows are provided for the different VersionManager dialogs.

R&S CMU Software Update and Version Management

Error and notify message

Escape Close the Info screen and return to the previous screen. During operation, the VersionManager can display two different types of

messages:

• Error messages indicating that an action could not be successfully

performed are displayed in yellow boxes. All error messages with possible reasons and rem edial actions are explained in Chapter 9 of this manual.

• Notify messages describing ongoing processes of the instrument are

displayed in blue boxes. These messages are self-explanatory and do not require an action to be taken by the user.

1100.4984.12 1.35 E-12

RF User Correction R&S CMU

RF User Correction

The purpose of the RF user c or rec tion is to com pens ate for an inevitable frequency and level-dependent attenuation in the test setup (frequency and level response correction). Level correction values are determined by means of a signal generator or power meter connected to the CMU’s input and output ports and stored to a file, which is transferred to the CMU in order to modify its RF generator level and to correct its RF analyzer results.

The correction values must be acquired independently for the input and output connectors of the instrument. Note: In addition to the RF user correction described here, the instrument provides a frequencydependent input and output attenuation for each function group. The fr equency-dependent attenuation is defined in the RF manuals for the relevant network options.

Output level correction

tab of the Connection Control menu; ref er to Chapter 4 in this manual or in the

The correction values for output signals (connectors RF1, RF2 or RF3 OUT) modify the RF generator level so that the actual RF signal power at the input of the DUT is equal to the nominal RF generator level.

UNIVERSAL RADIO COMMUNICATION TESTER CM U 200

CMU

RF level: P RF Frequency: f Correction(P

nom

dBm

nom

, f) = x dB

FUNCTION SYSTEM

DATA

CTRL

SELECT

789

G/n mV

abc def ghi

456

µV W

jkl mno pqr

k/m

123

dBµV

stu vwx yz

dBm

symb

Ω

mark

_ µ

UNIT...

ON / OFF ENTER

EXP/CMP CONT/HALT

CONTROL

CLR

AUX 1 AUX 2

INS

DEL

AF IN AF OUT

VOL

AUTO

INFO R ESET

ESCAPE

1100.0008.02

HELP SETUP

VARIATIONDATA

BM/µ

DATA 1

DATA 2

AUX 3

SPEECH

+ x) dBm P

RF 2 RF 1

RF4 IN

RF 3 OUT

13 dBm

2 W

13 dBm

MAX

nom

50 W

MAX

Attenuation (P

= x dB

, f)

nom

dBm

DEF

GHI1ABC

564

ÜVW7STU

XYZ

.-0

SCRC L M

Input level correction

The correction values for input signals (connector s RF1, RF2 or RF4 IN) modify the measured analyzer level so that the result for the RF s ignal power is equal to the power transmitted by the DUT.

UNIVERSAL RADIO COMMUNICATION TESTER CM U 200

CMU

RF Frequency: f Correction(Pnom , f) = x dB

RF level (meas.): P

nom

dBm

FUNCTION SYSTEM

DATA

CTRL

SELECT

789

G/n mV

abc def ghi

M/µ

456

µV W

jkl mno pqr

k/m

123

dBµV

stu vwx yz

dBm

symb

Ω

mark

_ µ

UNIT...

ON / OFF ENTER

EXP/CMP CONT/HALT

CONTROL

CLR

AUX 1 AUX 2

INS

DEL

AF IN AF OUT

VOL

AUTO

INFO R ESET

ESCAPE

1100.0008.02

HELP SETUP

VARIATIONDATA

DATA 1

DATA 2

AUX 3

SPEECH

- x) dBm P

RF 2 RF 1

RF4 IN

RF 3 OUT

13 dBm

2 W

50 W

13 dBm

MAX

nom

MAX

Attenuation (P

= x dB

, f)

nom

dBm

DEF

GHI1ABC

564

ÜVW7STU

XYZ

.-0

SCRC L M

Once the correction tables have been transf err ed to the instrum ent, the RF user correction is an internal procedure. There are several advantages of using this internal correction method rather than postprocessing the CMU results by means of an external measurement program:

• The input level correction affects all acquired RF power results

including derived quantities (e.g. the results of the limit c heck) without slowing down the speed of the measurem ents. Evaluating derived quantities by means of an external program can be tedious. The RF user correction ens ures that all results, including the derived ones, are consistent.

• The user correction is included in all results displayed in the measurement menus.

• Correction data can be acquired individually for each instrument and stored to its internal hard disk. If

several testers are used in a produc tion measurement system, the individual units are independent from each other and interchangeable.

Exception: The wideband power, which is provided in the Analyzer/Generator menu of the RF function group and in many network test applications, is always uncorrected.

1100.4984.12 1.36 E-12

R&S CMU RF User Correction

Compiling and Loading User Corr ection Tables

To generate user correction tables and activate the user correction proceed as follows:

To deactivate old user correction (if available)…

1. Start the CMU and press the Menu Select key after the boot-up sequence is terminated (from the moment when the CMU display turns black until the end of the 3-beep acoustic signal) to activate the VersionManager.

2. Select Firmware update after board change…

3. In the submenu opened, select Firmware update after boar d change without user correction and Back to previous screen.

Settings for acquiring correction values

The CMU closes the VersionManager and resumes the start-up procedure.

4. Open the Data m enu and acc ess the Arrange tab. Delete or rename the old user correction file stored in the directory INTERNAL\USERCOR\USERCOR1.DAT.

5. Press Menu Select to close the Data menu and access the Menu Select menu.

The following settings and precautions will ensure m ax im um acc uracy of the user correction:

6. From the Menu Select menu, access the RF function group or one of the network test options that will be used for the corrected measurements.

7. In the RF input and output attenuation factors (Ext. Att. Input, Ext. Att. Output) that will be used for the corrected measurements.

8. In the Analyzer tab of the Connec tion Control menu, select the RF input path attenuation (Analyzer Level – RF Attenuation: Normal, Low Noise or Low distortion) that will be used for the corrected measurements and set the RF Mode to Manual.

Note: The CMU provides a various mechanisms for automatic

tab of the Connection Control menu, select the external

input level control, e.g. the Analyzer Level – RF Modes Auto (autoranging) and PCL (in GSM-MS networks). To avoid unexpected effects, it is recommended to deactiv ate these control mechanisms and always measure the correction values at constant (Manual) maximum input level.

1100.4984.12 1.37 E-12

RF User Correction R&S CMU

To acquire the input correction values…

To acquire the output correction values…

To activate the user correction…

9. Apply the RF output signal of an external signal generator to one of the RF input connectors RF1, RF2, or RF4 IN of the CMU using the test setup (cables, power splitters, antenna coupler…) that will be used for the corrected measurements.

10. Vary the level and frequency of the signal generator and calculate the correction values as the difference between the external generator level and the measurement result at the CMU. If necessary, adapt the external input attenuation (see step 7) to force the correction values into the allowed range of

[–1.2 dB, +1.2 dB].

11. Apply the RF generator signal of the CMU to one of the RF output connectors RF1, RF2, or RF3 OUT of the CMU and feed it to a power meter, using the tes t setup (cables, power splitters, antenna coupler…) that will be used for the corrected measurements.

12. Vary the level and frequency of the CMU generator signal and calculate the correction values as the difference between the generator level and the measurement result at the external power meter. If necess ary, adapt the external output attenuation (see step

7) to force the correct ion values into the allowed range of

+1.2 dB].

[–1.2 dB,

13. Repeat the steps no. 9 and 11 for all input and output connectors needed and write the acquired c orrection values into a comm on file named USERCOR1.DAT with the format specified in section File

Format for User Correction Tables on p. 1.39 ff.

14. Tr ansfer the file to the CMU using the IEEE bus, the serial interf ace or the PCMCIA interface and copy it to the directory INTERNAL\USERCOR\.

15. Shutdown and re-s tart the CMU and pr es s the Menu Select key after the boot-up sequence is terminated (from the moment when the CMU display turns black until the end of the 3-beep acoustic signal) to activate the VersionManager again.

16. Select Firmware update after board change…

17. In the submenu opened (see step no. 3), select Firmware update after board change with user correction.

The CMU checks the file USERCOR1.DAT for com patibility with the file format specification and generates a message, should an error be detected. Afterwards, the CMU closes the VersionManager and resumes the start-up procedure. A mes sage indicates that the user correction is active.

Final test 18. Repeat the s teps no. 9 and 11 with active user correction to m ake

sure that the entire procedure was performed without errors.

1100.4984.12 1.38 E-12

R&S CMU RF User Correction

File Format for User Correcti on Tabl es

The user correction file is an ASCII file named USERCOR1.DAT that is stored in the directory C:\INTERNAL\USERCOR\ on the internal hard disk of the CMU. The file contains up to 6 independent tables to store the correction values f or the 3 RF output c onnector s and the 3 RF input connectors of the instrument. Each table has the following structure:

[PortID]: [Level1]: [Dev11] [Dev12] [Level2]: [Dev21] [Dev22]

... ... ... ... ...

[Levelm]: [Devm1] [Devm2]

[Freq1] [Freq2]

Comments in the f ile must be introduced by a double dagger #. Spaces and indentations ar e allowed for easier readability of the file. The first c harac ter in a line c an be a minus sign but must not be a plus s ign. The following example shows a valid user correction file:

# This is a comment # (any number of spaces is allowed) # indentations are allowed,

# spaces and TAB are used for separation

RF2in: 500 1000 1500 2000 10: 1.20 -1.2 -.23 -0.5 # comments are allowed at the end of a line 0: 0.34 1.14 1.20 -1.2

-10: 1.19 -1.19 -1.12 1.00

-14: -0.32 +1.11 -0.50 1.10

RF1in: 200 800 1500 10: +1.20 -.91 .5 0: -0.12 +1.11 -0.50

RF3OUT: 400 1000 1555 2500 10: 1.20 -1.20 -0.23 -0.5 0: 0.34 1.14 1.20 -1.2

-10: 1.19 -1.19 -1.12 1.00

-14: -0.12 +1.11 -0.50 1.10

... ...

...

[Freqn] [Dev1n] [Dev2n]

[Devmn]

Note: In general RF user correction tables are no longer valid after an update of the path

correction data, e.g. by means of the automatic calibration system R&S ACS. To ensure that outdated user correction data are not used inadvertently, the ACS renames all files c:\internal\usercor\ *.dat

➠

c:\internal\usercor\ *.bak after a change of the path correction

data. Existing *.bak files are overwritten.

Ranges of Values and Limitations

The table contains the following elements:

PortID

Frequency points

Identifier for the RF connector, written in upper or lower case letters and followed by a colon. The following port IDs are valid:

RF1IN, RF2IN, RF4IN for the 3 RF input connectors (input level correction) RF1OUT, RF2OUT, RF3OUT for the 3 RF output connectors (output level correction)

Frequency of the measured or generated signal in MHz, to be arranged in ascending order, starting in colum n 2 (lowest frequency). The frequency points must be integer numbers (i.e. integer multiples of 1 MHz) and can be distributed across the entire RF input and output frequency range of the instrument (see data sheet).

1100.4984.12 1.39 E-12

RF User Correction R&S CMU

Level points

Level of the measured or generated signal in dBm, to be arranged in descending order, starting in row 2 (highest level). The level points must be positive or negative integer numbers, followed by a colon, and can be distributed across the entire RF input and output power r ange of the connec tor s (see data sheet). Negative levels must be preceded by a minus sign “-“; using a plus sign “+” for positive numbers is not allowed.

Correction values

n times m level c orrec tion values f or the m eas ured or generated s ignal in dB (if n is the num ber of frequenc y points, which is equal to the number of corr ection values per table row, and m is the num ber of level points). T he total number of correction values n times m must not exceed 120 (it is possible though to choose m=120 and n=1 and vice versa).

The level correc tion values must be in the range between -1.20 dB and +1.20 dB. This is suff icient to com pensate f or a f requenc y response or level response caused by the test setup. Larger, correction factors can be defined by combining the user correction with a constant external input or output attenuation (see section RF Connectors in Chapter 4). Two consecutive correction values may be separated by any number of spaces or tabs.

Positive (negative) correction values for an output signal compensate for an external attenuation (gain) and increase (decrease) the generator level. Positive (negative) correction values f or an input signal are added to (subtracted from) the measured RF signal levels.

Interpolation Rules

The CMU uses the values in the cor rection tables to interpolate c orrection f actors at arbitr ary frequency and level values. The following rules apply:

• At constant frequency, the correction value associated with the level point P range between (P

+ Pm)/2 and (P

m+1

+ Pm)/2: The ranges with constant value adjoin each other in

m–1

is valid in the level

the middle between two consecutive level points.

• At constant level, the correction factors are linearly interpolated between consecutive frequency points.

1100.4984.12 1.40 E-12

R&S CMU Contents of Chapter 2

Contents

2 Getting Started .................................................................................................... 2.1

A Short Tutorial on CMU Operation................................................................................................2.1

Condensed Operating Instructions...........................................................................................2.1

How to access and close menus..............................................................................................2.2

How to use dialog elements in the menus ...............................................................................2.3

Startup of the CMU...........................................................................................................................2.4

RF Measurements.............................................................................................................................2.8

1100.4984.12 I-2.1 E-1

R&S CMU A Short Tutorial on CMU Operation

2 Getting Started

The following chapter pres ents a sam ple session with the universal r adio comm unication tes ter CMU. It is intended to provide a quick overview of the settings provided in the base system and the RF f unction group. No specific device under test is required. For an introduction to mobile network tests (e.g. tests of GSM900/1800/1900 mobile phones) please refer to the relevant operating manuals.

Before starting any measurem ent with the CMU, please note the instructions given in Chapter 1 for putting the instrument into oper ation. In this c hapter and in Chapters 3 to 4 of the c om plete operating m anual you will find detailed information on custom izing the instrument and the display according to your personal preferences.

The steps to perform are explained on the left side of each double-page together with the results obtained on the CMU screen. On the right side, additional inform ation is given. We also point out alternative settings and related measurements which could not be reported in detail.

For a systematic explanation of all menus, functions and parameters and bac kground inform ation refer to the reference part in Chapter 4 of the operating manual.

A Short Tutorial on CMU Operation

The principles of manual operation – controls, operating menus, dialog elements and measurement control – are discussed in Chapter 3 of the operating manual. Below we list some essentials for first users:

Condensed Operating Instructions

1. Press the RESET key on the front panel to set the ins trum ent to the default s tate befor e you config-

ure a new measurement.

2. Press ENTER to confirm selections, even if No or Yes is displayed.

3. The MENU SELECT front panel key can be pressed in any state of the unit. A large popup menu is

then displayed in which the function group (network etc.), signalling mode, and measurement menus can be selected. Activate by pressing ENTER.

4. A front-panel LED indicates which of the RF connectors is configured as output. In the menu, the RF

generator can be activated or deactivated with ON/OFF (green/red). The front-panel LED goes out if the generator is in the OFF position.

5. A front-panel LED indicates which of the RF connectors is configured as input. In the menu, the

measurement c an be controlled via the ON/OFF and CONT/HALT keys (ON (green), OFF (red) and HLT (yellow) states). In the OFF state, the LED goes out.

6. The SETUP hardkey allows to make static, measurement-independent default settings such as

Remote or Time, to check which options are installed and to activate new software options.

7. The softkeys to the right of the m enus are used to change the hotk eys across the bottom and their

functions. Pressing the Menus softkey (bottom right) allows a fast switchover between related menus using the hotkeys.

1100.4984.12 2.1 E-1

A Short Tutorial on CMU Operation R&S CMU

How to access and close menus

A startup menu is displayed automatically when the CMU is switched on.

SETUP

Some general configuration and s elect ion menus can be opened via the MENU SELECT, RESET, INFO, PRINT, HELP or SETUP keys on the front panel.

The hotkeys displayed across the bottom of a main m enu or graphical measurement menu are used to switch over between different main menus or graphical measurement menus. Tabs in popup menus are also accessible via hotkeys.

ESCAPE

The Connect. Control softk ey (always at the top right) is available in all measurement menus. This softkey opens a popup menu defining the input and output connectors, the external attenuation, the reference frequency as well as many network-specific settings.

In the Signalling test modes of m any network options, the Connection Control menu is also used to set up and terminate a connection between the CMU and the DUT.

The Connec tion Control menu also c ontains the input path and the trig- ger settings for the current function group and signalling state.

If a special configuration m enu exists for a measur ement or for a generator the corresponding softkey is marked with a yellow arrow. The configuration menu is opened by pressing the softkey twice.

All CMU popup menus can be closed with the ESCAPE key. Main menus and graphical m easurement menus are closed on switch-

ing to another main or graphical measurement menu.

1100.4984.12 2.2 E-1

R&S CMU A Short Tutorial on CMU Operation

How to use dialog elements in the menus

The dialog elements as signed to a softk ey are selected by pressing the

softkey.

Different input fields can be selected by means of the 4 cursor keys (blue frame shows active input field).

One of several elements in a list or toggle switch can be selected with the rotary knob.

For a comprehensive introduc tion to manual operation of the CMU refer to Chapter 3 of the operating manual.

Numeric values can be either incremented/decremented using the rotary knob or entered via the numeric keypad or an external keyboard.

1100.4984.12 2.3 E-1

Startup of the CMU R&S CMU

Startup of the CMU

This section describes how to custom ize the CMU and perform simple RF m easurem ents. As a prerequisite for starting the session, the ins trument must be corr ectly set up and connected to the AC power supply as described in Chapter 1.

Step 1

¾ Switch on the CMU using the mains

switch at the rear.

¾ Check the operating mode of the instru-

ment at the ON/STANDBY key on the front panel. If the CMU is in standby mode, press the ON/STANDBY key.

Step 2

The CMU is booted and after a short while displays the startup menu. This menu is usually closed as soon as the instrument software is loaded and the startup test is

finished. ¾ Press the Wait hotkey to prevent the

instrument from switching to another menu.

The Wait hotkey changes to Cont. with the additional message Change to last menu displayed on top.

Press the Cont. hotkey to resume the

startup process.

Step 3

RESET

¾ Press the RESET key to open the Reset

popup menu.

¾ Proceed as des cribed in Chapter 4 of the

operating manual, section Reset of In- strument Settings, to expand the tree of function groups.

¾ Select the function groups Base and RF

to be reset (the corresponding nodes must be black).

¾ Use the cursor keys to activate the Reset

button and press ENTER.

¾ In the popup window opened (Are you

sure?), select Yes to confirm the instru-

ment reset.

The CMU indicates that it perfor ms a partial reset of the two selected function groups and is then ready to carry out the following steps. The Reset popup menu is closed automatically.

1100.4984.12 2.4 E-1

R&S CMU Startup of the CMU

Additional Information... Alternative Settings

and Measurements

... on Step 1

c Mains switch on the rear panel

When the mains switch at the rear is set to the O position, the complete instrum ent is disconnected from the power supply. When the m ains power switch is set to the I position, the instrument is in standby mode or in operation, depending on the position of the ON/STANDBY key on the front panel.

d ON/STANDBY key on the front panel

The ON/STANDBY key at the front of the instrument determines whether the instrum ent is in standby mode or in operation.

Standby mode:

Only the OCXO refer ence frequency oscillator (option CMUB11/B12), if installed, is supplied with operating voltage. The orange LED (STANDBY) is illuminated.

) Chapter 1

The CMU is automatically set to the AC supply voltage and frequency applied. Note the permissible ranges of AC voltages and frequencies indicated at the rear of the instrument and in the data sheet.

) Chapter 1

The behavior of the CMU when it is switched off depends on the Front Module controller type installed.

Operation:

The green LED (ON) is illuminated and all modules of the instrument are supplied with operating voltage.

... on Step 2

e Startup menu

The startup menu displays the following information:

• The startup procedure (Process)

• Instrument model, serial number and version of the CMU

base software (Info).

• Installed hardware and software options and equipment (Options). Available software options are listed with their version numbers.

• Progress of the startup procedure (Startup bar graph).

f Wait hotkey

By default the CMU switches to the last main menu of the previous session after term inating the s tartup proc ess. This is convenient if an interrupted session is to be r esum ed or if the instrument is generally used in a definite operating mode.

On the other hand, the Wait f unction can be used to access the configuration menus which can be opened by means of the front panel keys before the actual measurement is started.

While the Wait hotkey is active, a reset of the instrument is not possible.

) Chapter 4 of the operating

manual

The Default hotkey can be used to load the factory default settings for all function groups. Settings made and stored in the previous session are overwritten.

The CMU’s user interface has

been optimized with the aim of facilitating fast and easy switchover between the menus and measurement modes. This includes the general configurations which can be accessed fr om any measurement menu.

The most im portant selection and configuration menus s uch as Re- set, Setup, Menu Select etc.are directly accessible via front panel keys.

1100.4984.12 2.5 E-1

Startup of the CMU R&S CMU

SETUP

Step 4

¾ Press the SETUP k ey to access general

device settings.

¾ Press the Time hotkey to switch over to

the Time tab of the Setup menu.

Step 5

The Time tab of the Setup menu displays the current time zone, time and date.

¾ Use the rotary knob to move the focus

onto the Time section of the Setup table. If necessary, press the rotary knob or the ON/OFF key to expand the parameters in the table (see Chapter 3 of the operating manual).

¾ Move to one of the input f ields as s ociated

to the Time parameter, select with ENTER and use the rotary knob or the

numeric keypad to correct the settings for the current time. Hours, minutes and seconds can be edited separately.

¾ Press ENTER to confirm the entries and

quit the input fields.

¾ Move to Zone select field, activate with

ENTER, and use the rotary knob to

choose your own time zone. In the same way, activate the Format

select field and use the rotary knob to switch over between European and North American time conventions.

1100.4984.12 2.6 E-1

R&S CMU Startup of the CMU

Additional Information... Alternative Settings

and Measurements

... on Step 4

c Softkeys and hotkeys

Softkeys and hotkeys are activated by pressing the associated keys on both sides and across the bottom of the display. The general purpose of sof tk eys is to provide settings, control the generator and the measurements. Hotkeys are used to switch over between different menus and different tabs belonging to a popup menu.

Chapter 3 of the operating

)

manual

... on Step 5

d Setup menu

The Setup m enu com pris es sever al tabs pr oviding general instrument settings . It is advisable to check and adjust the factory settings when you operate the CMU for the first time.

To switch over between the tabs of the setup menu use the hotkeys displayed at the bottom of the display.

) Chapter 4 of the operating

manual

The different types of m enus and control elements of the graphical user interface is explained in Chapter 3 of the operating manual. In the same chapter you can find a short tutorial on the entry of numbers and characters.

1100.4984.12 2.7 E-1

RF Measurements R&S CMU

RF Measurements

In the RF function group, a continuous or pulsed RF s ignal can be generated and a RF signal with definite frequency characteristics can be analyzed. The signal level can be plotted in oscillographical (Power) or spectral (Spectrum) representation.

SELECT

Step 1

¾ Press the Menu Select key to open the

Menu Select menu.

¾ Use the cursor keys and the rotary knob

to select the RF function group in the left half of the Selection table.

¾ In the right half of the table, select the

Analyzer/Generator menu.

¾ Press the Enter key to activate the

measurement selected and open the RF Analyzer/Generator menu.

Step 2

In the Settings table the Ana-

lyzer/Generator menu indicates the pa-

rameters of the signal gener ated and those of the signal received and analyzed.

At present, all param eters have been reset to factory default values. Different softkey/hotkey combinations and popup menus are provided to change the settings. Us erdefined parameters will be saved for later sessions when the CMU is switched off.

The Power output field in the Ana- lyzer/Generator menu shows an invalid result ("---") because at present no RF input signal is applied to the CMU.

1100.4984.12 2.8 E-1

R&S CMU RF Measurements

Additional Information... Alternative Settings

and Measurements

... on Step 1

c Menu Select menu

The Menu Select menu shows all function groups installed on your CMU. If a function group is selected the available test modes and measurement menus are indicated. Function groups representing digital network tests (such as GSM400/850/900/1800/1900-MS) are generally subdivided in the two test modes Non Signalling and Signalling, each containing a number of measurement menus.

The RF function group is available on any CMU regardless of the software options purchased. It com prises the three measurement menus Analyzer/Generator, Power and Spectrum. All three measurement menus are directly accessible from the Menu Select menu.

... on Step 2

d Analyzer/Generator menu

The Analyzer/Generator menu contains several softkeys to

• Control the RF signals received and analyzed (Analyzer Level, Analyzer Settings)

• Control the RF signals generated (Generator)

Defining a level and frequency via the Generator softk ey and the associated hotkeys implies that a continuous signal ( CW ) with this level and frequency is generated.

The RF Max. Level defined via Analyzer Level, however, denotes the maximum input power which can be measured. This is identical with the upper edge of the Power diagram (see below). The permiss ible range of Max. Level depends on the input connector and external attenuation us ed (see section Analyzer Settings in Chapter 4).

) Chapter 4 of the operating

manual

For digital network tests refer to the relevant operating manuals. e.g. GSM400/850/900/1800/1900- MS.

Chapter 4 of the operating

)

manual The Generator softkey provides

the most important s ettings of the

Generator tab of the Connection Control menu.

The Analyzer Level and Analyzer Settings softkeys correspond to the Analyzer tab of the Connection Control menu.

Defining a (center) Analyzer Settings – Frequency implies that only signals around this frequency are analyzed.

The Analyzer Settings – RBW hotkey defines the resolution bandwidth of the analyzer.

e The status of the Analy zer Power measur ement is shown in

the corresponding softkey. For ongoing measurements, the result in the Power output field is constantly updated.

At present no input signal is available so that the Power output field shows an invalid result “– – –“

Once the softk ey is selected, the Analyzer Power measurement can be switched off and on by means of the ON/OFF key. In contrast, the CONT/HALT toggle key halts the measurement after the next valid result has been obtained.

1100.4984.12 2.9 E-1

Ch. 4 and Ch. 5

)

The options for the m easurement status are ON, OFF, or HLT. The HLT state is reached after the end of a single shot measurement (see the section about measurement control in Chapter 5 of the operating manual).

Rohde and Schwarz CMU200v10 Operations Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Tabbed Divider Overview

Frequently Used Abbreviations

Table of Contents

TCP/IP Settings

Remote Control: TCPIp

New Selftests

Improved AuxTx Signal R&S CMU 200

Signal Configuration

RF Connector Settings

Remote Control: AUXTx

Frequency-Dependent Attenuation

I/Q Recorder

Measurement Control

Test Configuration

Subarray Configuration

ASCII Results – Subsystem IQRecorder:ARRay

Table of Contents

I/Q vs. Slot Measurement

Remote Control Reference (IQSLot)

Measurement Control

Test Configuration

Display Configuration

Subarray Definition

Retrieving Results

1 Preparation for Use

Front View

Rear View

Putting the Instrument into Operation

Unpacking the Instrument

Setting up the Instrument

Mounting in a Rack

Connecting the Instrument to the AC Supply

Switching on the Instr ument / Startup Test

Switching off the Instrument

How to Ensure EMC

Input Level

Connecting the CMU to the Test Setup

Connecting a Controller

Connecting an External Keyboard

Connecting a Monitor

Connecting a Printer

Synchronization with External Devices; Connection of Further Components

Software Update and Version Management

Remote Control of the R&S CMU

File Versions.new

CMU VersionManager

RF User Correction

Compiling and Loading User Corr ection Tables

File Format for User Correcti on Tabl es

Ranges of Values and Limitations

Interpolation Rules

2 Getting Started

A Short Tutorial on CMU Operation

Condensed Operating Instructions

How to access and close menus

How to use dialog elements in the menus

Startup of the CMU