Advantest Corporation TR4153B, TR4153A User Manual

ADVANTEST

ADVANTEST CORPORATION

USER’ S

MANUA L

TR4153A/B

TRACKING GENERATOR

MANUAL NUMBER TR4153A/B ED 71 1

B e f o r e re sel li ng to o th e r corpor atio ns or r e - expo r t i n g to ot h e r co u n tr i e s, you ar e r eq ui r e d to o b t a i n p e r mi ss ion fr o m bo t h th e Jap ane se G o v e rn men t u n d er its E x p o rt C o n t ro l A c t a nd t he U.S. G o vern

m e n t u n d e r it s E x p o r t C o n t r o l Law.

Al l r i g h t s r e se r v e d .

Printed in Japan

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

TABLE OF CONTENTS

1 . INTRODUCTION

1 . 1 GENERAL 1 .2 PREPARATION

2. OPERATION ............................................................2 - 1

2.1 FRONT AND REAR PANELS .............................................2 - 1

2.2 OPERATION METHOD

3. CONNECTING GPIB AND PROGRAMMING

3. 1 GENERAL ............................................................3 - 1

3.2 OUTLINE OF GPIB

3.3 SPECIFICATIONS

3.4 HANDLING GPIB

3.5 BLOCK DELIM ITER

3.6 PROGRAMMING EXAMPLE ...............................................3 - 10

4. PERFORMANCE SPECIFICATIONS ..........................................4 - 1

4.1 ELECTRICAL PERFORMANCE ............................................4 - 1

4.2 GENERAL SPECIFICATIONS ............................................4 - 2

4.3 ACCESSORIES

5. OPERATION ............................................................5 - 1

6. PERFORMANCE TEST

6.1 PREPARATION

6.2 FREQUENCY RANGE

6.3 OUTPUT LEVEL FLATNESS .............................................6 - 3

6.4 T.G. LEAKAGE

6.5 OUTPUT SPURIOUS

6.6 TABLE OF SPECIFICATION ............................................6 - 6

........................................................1 - 1

...........................................................1 - 1

.......................................................1 - 2

..................................................2 - 6

..............................

...................................................3 - 2

....................................................3 - 4

.....................................................3 - 7

...................................................3 - 9

.......................................................4 - 3

....................................................6 - 1

.......................................................

...................................................6 - 2

......................................................6 - 4

...................................................6 - 5

......

3 - 1

6 - 1

7. ADJUSTMENT AND CALIBRATION ..........................................7 - 1

7.1 PREPARATION ........................................................7 - 1

7.2 ADJUSTMENT OF 3.77 GHz BPF AND ISO CAVITY

7.3 ADJUSTMENT OF 4.0 GHz B P F .........................................7 - 3

7.4 ADJUSTMENT OF 226.42 MHz VCO ......................................7 - 4

7.5 ADJUSTMENT OF 22.6 MHz VCXO .......................................7 - 5

7.6 ADJUSTMENT OF ALC CONTROL BOARD

8. MAINTENANCE INFORMATION

8. 1 LOCATION ...........................................................8 - 1

8.2 LEVEL DIAGRAM

.....................................................8 - 3

.............................................8 - 1

..................................7 - 6

C - 1*

........................7 - 2

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

_____________________________________________ 1 .1 GENERAL

1. INTRODUCTION

1.1 GENERAL

Tracking generator TR4153A/B (this unit) is a sweep oscillator connected

to the ADVANTEST spectrum analyzer (main unit).

Table 1-1 lists the spectrum analyzer connected to this unit and the measurement frequency range.

Combined use of the tracking generator and the ADVANTEST spectrum analyzer allows direct reading of the frequency characteristic of the DUT within

the frequency range depending on that of the main unit. In this case, a dynamic range of 80 dB is obtained on the CRT of the main unit. Moreover, a dynamic range of approximately 110 dB can be obtained by changing the reference level on the CRT display.

Table 1-1 Connectable Spectrum Analyzer and Measurement Frequency Range

Spectrum analyzer Measurement frequency range

TR41 31 /E

100 kHz to 2 GHz

The normalization feature of the spectrum analyzer (TR4131) main unit can eliminate the frequency characteristic of the measurement system, which permits direct reading of only the frequency characteristic of DUT.

1 - 1

TRACKING GENERATOR (TR4153A/B)

1.2 PREPARATION

1.2.1 Preparation and Precautions

( T)

Set POWER switches of the spectrum analyzer and this unit to OFF when connecting this unit to the spectrum analyzer or when connecting a power cable.

(5) Before switching power on

Set the voltage setting card under the fuse properly so that you can read the print of the supply voltage you use. Use only the specified

fuse. See (5) for details on card setting.

Adaptor A09034 (KPR-18)

USER'S MANUAL

1.2 PREPARATION

Connect this pin to

the ground terminal

(a) (b)

Figure 1-1 Power Cable Plug and Adaptor

(3) Switching power on

Set the POWER switch on the front panel of this unit to OFF, then connect the power cable as follows: Connect the power cable to the AC LINE connector. The power plug has three pins and the middle round pin is for grounding.

When using a 2-pin adaptor, connect either the ground wire of the

adaptor or the ground panel on the rear panel of the main unit to the ground. The attached adaptor, A09034 (KPR-18), conforms to the Electric Appliance Regulations. As shown in Figure 1-1, widths A and

B of two pins of the A09034 are different, so check which is which when inserting this plug in the receptacle. When the A09034 cannot be used, use the optionally available adaptor

KPR-13.

Adaptor A09034 (KPR-18)

1 - 2

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

________________________

___

1.2 PREPARATION

(T) Replacing the fuse

Before replacing the fuse, disconnect the power cable from the AC LINE connector. Move the plastic cover of the fuse box (on the right side

of the fuse box) to the left, then pull the FUSE PULL lever to remove

the fuse as shown in Figure 1-2. Use only the fuse specified in

Table 1-2.

Table 1 -2 AC Supply Voltage and Fuse

Supply voltage

AC 100 V

Fuse

MDX 1.25 A

AC 120 V AC 220 V

MDX 0.6 A

AC 240 V

(5) Setting the voltage setting card

Check whether the voltage setting card is properly set. If you cannot see the print (100 V, 120 V, 220 V, or 240 V) of the supply voltage

you use, remove the card and insert it again up side down. (See

Figure 1-2.)

Voltage setting card

Figure 1-2 Fuse Replacement and Voltage Setting Card

( j) The ambient temperature is 0 to 40o c.

(7) The storage temperature is - 2 0 to +70 oc . put this unit in a

cardboard or wrap it with a vinyl sheet and store it in a place not exposed to direct sunlight.

1 - 3

TRACKING GENERATOR (TR4153A/B)

USER’S MANUAL

1.2.2 Operations before Starting Measurement

This section explains the connections between the rear panel of this unit and the rear panel of the spectrum analyzer and the operations

required before starting measurement.

Tracking generator

1.2 PREPARATION

Connection /-i-

cable (A01002)^kg

Spectrum analyzer

c

Figure 1-3 Connections between Rear Panels

o HMD] °

m m m

uvnzi

KM

@1

□

Connection cable (MI-02)

(T) Set the POWER switches of this unit and main unit to OFF.

(2) As shown in Figure 1-3, connect cables between the following

connectors:

• SLOPE IN connector of this unit and SLOPE OUT connector of main unit (MI-02 cable)

• 1st LO INPUT connector of this unit and 1st LOCAL connector of main

unit (A01002 cable)

• 2nd LO INPUT connector of this unit and 2nd LOCAL connector of main

unit (A01002 cable)

(3) Set POWER switches of this unit and main unit to ON.

1 - 4

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

_______________________________________________________________1 .2 PREPARATION

(T) For the TR4153A, the output level indication LED goes on. For the

TR4153B, the POWER lamp goes on.

(5) Connect the OUTPUT connector of this unit to the INPUT connector of

the spectrum analyzer with the specified cable.

(6) The CRT screen displays the frequency characteristics of this unit and

main unit.

If the LEVEL VARIABLE control of the TR4153B is at the MIN position, the output level cannot be controlled and consequently the frequency

characteristic curve may deviate from being flar.

frequency characteristic of the amplifier is observed, the maximum input level must not exceed that of the first mixer or attenuator.

1 - 5*

TRACKING GENERATOR (TR4153A/B)

USER’S MANUAL

2. OPERATION

2.1 FRONT AND REAR PANELS

2.1.1 TR4153A

See Figure 2-1 for the panels of the TR4153A. See Section 2.1.2 for details on the panels of the TR4153A.

- Front panel -

0 POWER switch

To power this unit, set this switch to the ON position. For the 4153A, the output level indication LED goes on. Set this switch to the OFF position to switch the power off.

(2) OUTPUT connector

This is the output connector for this unit.

(3) OUTPUT LEVEL keys

These keys are used to attenuate the signal output from the OUTPUT connector.

__________________________

2.1 FRONT AND REAR PANELS

0 RMT/LCL key

The RMT lamp goes on and any input by panel keys are ignored when this unit is controlled from the outside via the general-purpose interface

bus (GPIB). Press this key to make inputs by panel keys effective.

0 Output level indication LEDs

These LEDs indicate the level of the signal output from the OUTPUT connector.

® LEVEL ADJ knob

This knob is used for fine adjustment of the output signal level from 0 to -1.5 dB.

0 FREQ ADJ knob

This knob is used for fine adjustment of the frequency to the middle

of the bandwidth of the main unit.

- Rear panel -

0 SLOPE

This connector is connected to the SLOPE connector on the rear panel of the main unit.

0 1st LO INPUT connector

This connector is connected to the 1st LOCAL connector on the rear panel of the main unit.

2 - 1

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.1 FRONT AND REAR PANELS

(fo ) 2nd LO INPUT connector

This connector is connected to the 2nd LOCAL connector on the rear panel of the main unit.

(f j) Ground terminal

When the power cable is used together with a 2-pin adaptor, connect

the wire of the adaptor or this terminal to the ground.

(f |) AC LINE connector

The power cable is connected to this connector.

GPIB connector An external controller is connected to this connector with a GPIB cable.

(j 3> Address switch for GPIB

The GPIB address is set with five bit switches.

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.1 FRONT AND REAR PANELS

Figure 2-1 TR4153 Panels

2 - 3

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.1.2 TR4153B

See Figure 2-2 for the panels of the TR4153B.

- Front panel -

(T) Power switch

To power this unit, set this switch to the ON position. For the

4153B, the POWER lamp goes on. Set this switch to the OFF position to switch the power off.

(2) OUTPUT connector

This is an output connector of this unit.

@ LEVEL VARIABLE knob

This knob is used to control the output signal level 10 dB or more between the MIN and MAX positions.

@ FREQ ADJ knob

This knob is used for fine adjustment of the frequency to the middle of the bandwidth of the main unit.

______________________________

2^1 FRONT AND REAR PANELS

- Rear panel -

(D SLOPE

This connector is connected to the SLOPE connector on the rear panel of the spectrum analyzer.

@ 1st LO INPUT connector

This connector is connected to the 1st LOCAL connector on the rear panel of the spectrum main unit.

(7) 2nd LO INPUT connector

This connector is connected to the 2nd LOCAL connector on the rear panel of the main unit.

(8) Ground terminal

When the power cable is used together with a 2-pin adaptor, connect

the wire of the adaptor or this terminal to the ground.

(9) AC LINE connector

The power cable is connected to this connector.

2-4

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.1 FRONT AND REAR PANELS

Figure 2-2 TR4153B Panels

2 -

5

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

__________________

2.2 OPERATION METHOD

2.2.1 Reading Frequency Characteristic Directly

This section explains how to read the frequency characteristic directly by using the tracking generator with the spectrum analyzer TR4131/E.

2.2 OPERATION METHOD

Figure 2-3 Procedure for Reading the Frequency Characteristic Directly

(T) Connect cables between this unit and main unit by referring to

Section 1.2.2.

(2) Set POWER switches of this unit and main unit to the ON position.

(3) Connect the OUTPUT connector of this unit to the INPUT connector of

the main unit with the specified cable.

(?) The CRT screen then displays horizontal bright lines. The frequency

range of this unit is 100 kHz to 2 GHz and the frequency range of the main unit is 10 kHz to 3.5 GHz, then the following waveform is

displayed immediately after power-on operation.

6

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.2 OPERATION METHOD

ST 10ms/ ATT lOd S

Figure 2-4 Direct Reading of Frequency Characteristic (1)

(5) Set output levels of the main unit and this unit for the DUT.

Figure 2-5 shows the screen displayed when output levels are reset to measure the frequency characteristic of 155 MHz B.P.F.

□dB .-n

______ _ _ _ __

155. 0MHz___________50MHz

10aB

* r

ST CL Is/ ATT lOdB VF 10kHz

Figure 2-5 Direct Reading of Frequency Characteristic (2)

output is applied to this unit the frequency characteristic shown in Figure 2-6 can be read directly.

2 - 7

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.2 OPERATION METHOD

Figure 2-6 Direct Reading of Frequency Characteristic (3)

(1) Dynamic range

The dynamic range of measurement is limited by the maximum output

level and white noise level of this unit. To widen the dynamic range, reduce the IF band width of this unit to lower the noise level.

Since the tracking signal leaks into the main unit (T.G. leakage),

noise may not be reduced to the desired level if the resolution of

this unit is increased to the maximum value. T.G. leakage provides a

dynamic range of -110 dBm (at an output level of 0 dBm). Therefore, measurement can be done if the stop band of the filter causes attenuation of approximately 110 dB. To prevent T.G. leakage, use well-shielded cable cables and do not bring these cables close to each

other.

When the IF band width is reduced, pay attention to the following:

(a) The RBW (resolution band width) of the TR4131/E is set to 30 kHz or

less, the tracking error (difference between output frequencies of this unit and main unit) causes a level error. Accordingly, it is necessary to set RBW of the main unit to 1 kHz and to adjust the tracking error by turning the half-fixed volume FREQ ADJ knob before starting measurement so that the level indication on the CRT screen becomes maximum.

(b) The CRT display cannot display dynamic ranges greater than 80 dB

therefore, switch reference levels of the CRT display. Pay attention to level suppression caused by excessive input in the

primary mixer in the input block of the main unit.

(2) Time response

"UNCAL" is displayed to indicate whether the level displayed on the

CRT screen is correct. This indication, however, has no meaning when

frequency characteristics are measured using this unit.

2 - 8

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.2 OPERATION METHOD

"UNCAL" indicates whether the IF filter responds correctly to indicate

the level according to the combination of SWEEP TIME/DIV., SPAN, and BANDWIDTH switches of the main unit. For the unit holding a constant level like this unit, the level may displayed normally even if "UNCAL"

is displayed. If the signal which is supplied from the output terminal of DUT to the main unit changes abruptly, the IF filter of the main unit stops responding. Pay attention to the response by DUT itself. If the SWEEP TIME/DIV. switch is operated, the IF filter and DUT respond normally providing the characteristic on the screen does not change. If the characteristic changes when the SEEP TIME/DIV. switch

is operated, delay the sweep time or make the span (frequency sweep

width) narrow.

(3) Normalization function

The normalization function is used to compensate for the frequency characteristic of the TR4131/B and to compare waveforms displayed on

the CRT screen. The procedure for measuring the high frequency cable insertion loss is explained below as an example.

(T) Connect the TR4131/E and TR4153A/B in the system, except the cable,

to be tested. (See Figure 2-7.)

(The frequency characteristic measured in this system involves the cable insertion loss and frequency characteristic of the TR4131/E; the cable insertion loss concerned is obtained according to this frequency characteristic.)

D

TR 41 53 A /B

O

TV

---9

--------------

V

_ _ _ _ _ _

Figure 2-7 Example of Measurement of High Frequency Cable Loss

J

2 - 9

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.2 OPERATION METHOD

(2) Vertical axis : 2 dB/DIV.

Frequency span : 2 GHz

Reference level: Set the reference level so that the waveform is

displayed in the middle of the screen. (See

Figure 2-8.)

i 1 ! 1

2d 3

IWi

1 l 1 l

L 1

.— irT

-)

1

. 1 1 1

ST CL1«/

L L !

ATT !Cd9

1 1 1

1

Figure 2-8 Storage of Displayed Waveform

S T 0 » E

(3) For the TR4131, prrss Q to store this waveform,

s 111 r t * 8 w

Press Q and Q ; the screen will display "NORM", a reference

line in the middle of the screen, and a measured waveform. (See

Figure 2-9.)

For the TR4131E, the waveform on only one screen is memorized,

s h 1 r r 1s w

Press - Q and Q ; the reference waveform will be stored after

sweeping once. (See Figure 2-8.)

Thus, the reference line and normalized waveform are displayed every

time a sweep is completed. (See Figure 2-9.)

Figure 2-9 Normalization

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.2 OPERATION METHOD

(4) Connect the cable to be measured. (See Figure 2-10.)

The measured waveform is displayed away from the reference line according to the amount of cable loss. (See Figure 2-11.)

Figure 2-10 Connection of Cable to be Measured

Reference line

Figure 2-11 Reference Line and Waveform

2-11

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

2.2 OPERATION METHOD

Press Q ; a marker will be displayed on the measured waveform to

indicate the deviation from the reference level. (See Figure 2-12.)

Figure 2-12 Reference Line, Waveform Shift, and Marker

(§) If a wide dynamic range is required for the measurement of a filer

or amplifier, press

o

; the reference line and waveform

will move by one division. To shift the reference line and waveform

H C o a r s e

by 1/10 division, select FINE by pressing . Thus, select

□

this option to observe the waveform easily. (See Figure 2-13.)

0 , O O dEhi IOQCMHt

HK 1D07WHZ j

MflML

ST 0.1a/ ATT l Cdfl

Figure 2-13 Reading Deviation from Reference Line According to Marker

2d9/

To modify or terminate setting after measurement, press Q and

to return to the normal mode.

norm

2 -1 2 *

TRACKING GENERATOR (TR4153A/B)

USER’S MANUAL

___________________________

3. CONNECTING GPIB AND PROGRAMMING

3.1 GENERAL

Tracking generator TR4153A can be connected to the an GPIB conforming to

IEEE specifications by using the GPIB interface supplied.

This chapter explains the specifications and functions of the GPIB

interface.

• GPIB: General-Purpose Interface Bus The GPIB cannot be connected to the TR4153B.

______________3.1 GENERAL

3 - 1

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

3.2 OUTLINE OF GPIB

The general-purpose interface bus (GPIB) is an interface system that can connect the measurement unit to the controller or peripheral equipment

with a simple cable (bus line). It is expandible and easy to use compared

to the existing interfaces. It is also compatible with the products of

other makers both electrically and functionally. Accordingly, connection

of only one bus line allows construction of both simple and complicated automatic measurement systems.

In the GPIB system, addresses of the devices connected to the bus line must be set. Of the three parts (controller, talker, and listener), each device can take one or two parts.

During system operation, only one talker can send data to the bus line and

two or more talkers can receive this data. The controller transfers data

from a talker to the listener(s) by specifying their addresses. Moreover,

the controller (talker in this case) itself sets the measurement condition of the listener. Eight bit/byte parallel serial data lines are used for

data transfer between devices. Data can be transferred in both directions asynchronously. This system can contain both high-speed and low-speed devices because it is an asynchronous system.

The data (message) transferred between devices consists of measurement data, measurement conditions (program), and commands expressed by ASCII codes.

In addition to the above eight lines, there are three handshake lines and five control lines.

• Handshake lines send the following signals: DAV (Data Valid) : Indicates that the data is valid.

NRFD (Not Ready For Data): Indicates that data reception is enabled. NDAC (Not Data Accepted) : Indicates that reception is completed.

• Control lines send the following signals: ATN (Attention) : Indicates whether the signal on the data line

is an address, command, or other information.

IFC (Interface Clear) : Clears the interface. EOI (End or Identify) : Indicates the end of information. SRQ (Service Request) : Indicates a service request from a device to

the controller.

REN (Remote Enable) : Controls the device that allows remote

programming.

3 - 2

TRACKING GENERATOR (TR4153A/B)

Data line (8 lines)

Transfer control line

(3 lines)

Bus control line

(five lines)

USER'S MANUAL

3.2 OUTLINE OF GPIB

IRC, ATN, SRQ.

REN, EOI

GPIB bus (J

(16 buses)

Interface

Control,

talk, and listen

Device A Device B

Interface

(Talk and

listen)

Figure 3-1 Outline of GPIB

Interface

(Talk)

Device C

DAV,NRFD, NDAC

DIO' 1 ~ 8

Interface

(Listen)

Device D

3-3

3.3 SPECIFICATIONS

3.3.1 GPIB Specifications

Standard : IEEE 488-1978 Code : ASCII (or binary code for packed format) Logical level : Logical 0 High state (+2.4 V or more)

Signal line termination: Sixteen bus lines are terminated as follows:

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

3.3 SPECIFICATONS

Logical 1 Low state (+0.4 V or less)

Figure 3-2 Signal Line Termination

Driver : Open collector

Output voltage in "Low" state: +0.4 V or less,

48 mA

Output voltage in "Hight" state: +2.4 V or more,

-5.2 mA

Receiver : "Low" state at +0.6 V or less

"High" state at +2.0 V or more

Bus cable length : The length of each cable is 4 m or less and the

total cable length (number of devices connected to

bus x 2 m) must be shorter than 20 m.

Address assignment: Thirty-one token/listen addresses can be assigned

as desired by using the address selection switches on tne rear panel.

After setting the address selection switches, set

the POWER switch to OFF then set to ON again.

Connector : 24-pin GPIB connector

57-20240-D35A (or equivalent ANFEHOL connector)

3-4

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

24-pin GPIB connector

3.3 SPECIFICATONS

Pin No.

12

11

10

9

8

7

6

5

4

3'

2

Signal name

SHI ELD

ATN

SRQ

IFC

NDAC

NRFD

DAV

EOI

DIO 4

DIO 3

DIO 2

1

Figure 3-3 GPIB Connector Pin Arrangement

DIO 1

TRACKING GENERATOR (TR4153A/B)

3.3.2 Interface Functions

Table 3-1 Interface Functions

USER'S MANUAL

3.3 SPECIFICATONS

Code SHI

AH1 T8

L4

SRO RL1

PPO DC1

DTO CO

El

Description Source handshake function Acceptor handshake function Basic talker functions without serial poll function

Talker release function (specified listener) Basic listener functions and listener release function (specified

talker) No service request function Remote function

No parallel function

Device clear function

No device trigger function

No controller function

Use of open collector bus driver

EOI, DAV: E2 (use of 3-state bus driver)

3 - 6

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

____________

3.4 HANDLING GPIB

3.4.1 Connecting System Components

The GPIB system consists of two or more devices. Notes on connecting

these devices are as follows:

(1) Check the states (preparatory settings) and operations of the system

according to the Operating Instructions of the TR4153A, controller,

and peripheral devices.

(2) Minimize the lengths of the cable connecting the measurement device

and the bus cables connecting the controller and other devices. The

total bus cable length (number of devices connected to bus x 2 m) must be less than 20 m. ADVANTEST is ready to supply the following bus cables:

Table 3-2 Standard Bus Cable (Optional)

Length Name

3.4 HANDLING GPIB

0. 5 m 1 m

2 m 4 m

(3) The bus cable connector is a piggyback type. One connector has both

male and female connectors and these connectors can be connected with each over.

When connecting a bus cable, do not connect three or more connectors

together. Fasten connectors securely with connector set screws.

(4) Check power requirements, grounding conditions, and, if required,

setting conditions of the system components. Then, supply power to these components.

All the components connected to the bus must be powered; otherwise,

the entire system operation is not guaranteed.

3.4.2 Setting Address Switches

A DIP switch is provided on the rear panel of this unit. (See Figure 3-4.) This switch is used to assign GPIB addresses.

408JE-1P5 408JE-101 408JE-102

408JE-104

GPIB Addresses 0 to 30 can be set by setting bit 1 (rightmost bit) to bit 5 to 0 or 1. Address setting must be done before switching the

power on.

3 - 7

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

3.4 HANDLING GPIB

(Bit 1)

1

0

Figure 3-4 ADDRESS Switch

Table 3-3 shows the relationship between ADDRESS switch settings and

GPIB addresses.

Table 3-3 ADDRESS Switch Setting

ADDRESS switch

00000 00001

0001 0 0001 1 001 00 00101 001 10 6 0011 1

01000 01 001 01010 0101 1

01 100 01 101 01110

01111

GPIB address ADDRESS switch

0

1

2 3 4 5

10000 10001 10010

1001 1 10100 10101 10110

7 8

9 10 1 1 12

13

14

10111

1 1000 1 1001 11010

11011 11100 11101 11110

15

GPIB address

16 17

18 19 20 21 22 23 24 25 26

27 28 29 30

3 - 8

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

3.5 BLOCK DELIMITER

This unit is provided with four types of block delimiters listed in Table 3-4.

Table 3-4 Block Delimiter

Code DLl

DL2 DL3 DLO

Outputs an LF code (1 byte). Outputs an EOI signal together with the last data byte. Outputs CR and LF codes (2 bytes). Outputs CR and LF codes (2 bytes), and outputs an EOI signal together

with the LF code.

This unit accepts the command or data sent from the GPIB controller and so forth if the command or data matches one of above block delimiters. If the block delimiter of the GPIB controller does not match any one of above

delimiters, the GPIB connected to this unit does not function normally.

When data is received from this unit, the block delimiter of this unit must be changed to one of the block delimiters handled by the receiver

(GPIB controller and so forth). In this case, select one of four block

delimiters listed above.

The block delimiter of this unit can be changed by sending a command

listed above from the GPIB controller.

When this unit is powered, block delimiter DL3 is selected.

Block delimiter

3 - 9

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

____________________ 3.6 PROGRAMMING EXAMPLE

3.6 PROGRAMMING EXAMPLE

The output level of the TR4153A can be remotely controlled by the GPIB controller.

This section explains programming of settings with reference to the

program generated using the Hewlett Packard desk-top computer 9816.

Codes used are as follows:

Table 3-5 Program Codes

(TG LEVEL)

TL

Sets an output level with an absolute value.

(dBm)

DM

Sets an output level with an absolute value.

(COARSE UP)

CU

Raises the output level by 10 dB over the current value.

(COARSE DOWN)

CD

Lowers the output level by 10 dB under the current value.

(FINE UP)

FU

Raises the output level by 1 dB over the current value.

(FINE DOWN)

FD

Lowers the output level by 1 dB under the current value. Instrument Preset

IP

Performs initialization (the output level is set to 0 dBm).

(1) Setting the output level directly

10 OUTPUT 701 ; "TL-200M"

20 END

When this program is started in the initial state (output level = 0 dBm),

its operation is displayed as shown in Figure 3-5.

3-10

TRACKING GENERATOR (TR4153A/B)

USER'S MANUAL

3.6 PROGRAMMING EXAMPLE

lOdB

ST 20ms/ ATT 20dB

Figure 3-5 Example of Programmed Operation

(2) Setting output levels with the commands corresponding to front panel keys

OUTPUT 701

10

ENTER 701

20

IF A= -20

30

OUTPUT 701

40 50 GO TO 20

IF A=-20 THEN 90

60 70 OUTPUT 701

GOTO 20

80

END

90

Line number

10 20 30

40 50 60 70 80

90

Initializes the TR4153A. Reads data from the TR4153A. Branches to line 60 when the read data is

-20. Lowers the TR4153A output level by 10 dB.

Returns to line 20. Branches to line 90 when the read data is Raises the output level of the TR4153A by Returns to line 20. End

; "IP"

; A

THEN 60

; "CD"

; "CU"

Meaning

equal to or less than

equal

10 dB.

to -20.

Like the program in (1) above, this program is executed as shown in

Figure 3-5.

3-11