Quasonix nanoTX Installation And Operation Manual

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Quasonix, Inc.

Installation and Operation Manual

nanoTX™ Telemetry Transmitter

Quasonix, Inc.

6025 Schumacher Park Dr.

West Chester, OH 45069

05 August, 2019

Revision 3.3.5

Specifications subject to change without notice.

All Quasonix products are under U.S. Department of Commerce jurisdiction; not covered by ITAR

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table of Contents

1 Introduction ............................................................................................................................................ 7

1.1 Description ................................................................................................................................... 7

1.1.1 Nomenclature .......................................................................................................................... 7

1.2 Model Number Field Codes ......................................................................................................... 9

1.2.1 Frequency Band ...................................................................................................................... 9

1.2.2 Clock and Data Interface ......................................................................................................... 9

1.2.3 Serial Control Interface .......................................................................................................... 10

1.2.4 ARTM Tier 0 (PCM/FM) ........................................................................................................ 10

1.2.5 ARTM Tier I (SOQPSK-TG) .................................................................................................. 10

1.2.6 ARTM Tier II (Multi-h CPM) ................................................................................................... 11

1.2.7 Legacy ................................................................................................................................... 11

1.2.8 Output Power......................................................................................................................... 11

1.2.9 Packages ............................................................................................................................... 12

1.2.10 Automatic Carrier Wave Output Option - AC ........................................................................ 12

1.2.11 Baud Rate Option – BRx ....................................................................................................... 12

1.2.12 CP07 Control Protocol Option – C7 ...................................................................................... 12

1.2.13 Convolutional Encoder Option – CE ..................................................................................... 12

1.2.14 Clock-free Baseband Interface Option – CF ......................................................................... 13

1.2.15 Dual Power Option – DP ....................................................................................................... 14

1.2.16 Frequency Offset Option – FO .............................................................................................. 14

1.2.17 GPS Notch Option – GN ....................................................................................................... 14

1.2.18 High Bit Rate Option – HR .................................................................................................... 14

1.2.19 Internal Clock and Data Option – ID...................................................................................... 15

1.2.20 Limited Current Option - LC .................................................................................................. 15

1.2.21 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD ......................... 15

1.2.22 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD6 ....................... 15

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Quasonix, Inc.

1.2.23 Low Bit Rate Option – LR ...................................................................................................... 15

1.2.24 Modulation Scaling Option – MS ........................................................................................... 15

1.2.25 Hardware Preset Option – PS2, PS4, PS8, or PS16 ............................................................ 16

1.2.26 Power Output Option – PW020 ............................................................................................. 16

1.2.27 Spacecraft Tracking and Data Network Option – STDN ....................................................... 16

1.2.28 Variable FIFO Depth Option – VF ......................................................................................... 16

1.2.29 Variable Power Option – VP .................................................................................................. 16

1.2.30 Wide Input Voltage Range Option – WV ............................................................................... 16

2 Accessories .......................................................................................................................................... 17

2.1 Fan-cooled Heat Sink ................................................................................................................ 17

2.2 Pre-wired 15 Pin Nano-D TTL Connector .................................................................................. 18

2.3 Pre-wired 21 Pin Nano-D ........................................................................................................... 18

2.4 15 Pin Nano-D Wiring Harness ................................................................................................. 19

2.5 21 Pin Nano-D Wiring Harness ................................................................................................. 19

2.6 MMCX to SMA Adapter Cable ................................................................................................... 20

2.7 Ruggedized Handheld Programmer .......................................................................................... 21

2.8 USB to Serial Converter Cable .................................................................................................. 21

3 Installation Instructions ........................................................................................................................ 22

3.1 Mechanical ................................................................................................................................. 22

3.1.1 01AA Package ....................................................................................................................... 22

3.1.2 01AB Package ....................................................................................................................... 25

3.1.3 01PE Package ....................................................................................................................... 28

3.1.4 01PD Package....................................................................................................................... 32

3.2 Thermal ...................................................................................................................................... 35

3.3 Electrical .................................................................................................................................... 35

3.3.1 TTL Clock and Data Baseband ............................................................................................. 35

3.3.1.1 Pin Information .................................................................................................................. 36

nanoTXTM Telemetry Transmitter

iii

Quasonix, Inc.

3.3.2 Signal Timing ......................................................................................................................... 37

4 Operating Instructions .......................................................................................................................... 38

4.1 Power-on Operation ................................................................................................................... 38

4.2 nanoTX™ Serial Control Protocol ............................................................................................. 38

4.2.1 Command Set: Standard and Optional Commands .............................................................. 39

4.2.1.1 Additional Command Set Details ...................................................................................... 57

4.2.1.1.1 Internal Clock Rate – IC .......................................................................................... 57

4.2.1.1.2 Input Source Selection Command - IS .................................................................... 57

4.2.1.1.3 Low Density Parity Check (LDPC) Command – LD ................................................ 60

4.2.1.1.4 System Status Command – SY ............................................................................... 61

5 RF Output Notes .................................................................................................................................. 62

5.1 Troubleshooting the RF on a Quasonix Transmitter ................................................................. 62

6 Performance Specifications ................................................................................................................. 65

6.1 RF Output .................................................................................................................................. 65

6.2 Electrical Current ....................................................................................................................... 65

6.3 Environmental Specifications..................................................................................................... 65

6.3.1 EMI Performance................................................................................................................... 65

6.4 Carrier Frequency Tuning .......................................................................................................... 66

6.5 Carrier Frequency Error ............................................................................................................. 66

6.6 Bit Error Rate ............................................................................................................................. 67

6.7 Modulated RF Power Spectrum ................................................................................................ 67

6.8 Phase Noise Power Spectrum ................................................................................................... 69

6.9 Baseplate Temperature ............................................................................................................. 70

6.10 Vibration and Shock ................................................................................................................... 70

6.10.1 Vibration Testing.................................................................................................................... 72

6.10.2 Shock Testing ........................................................................................................................ 75

7 Maintenance Instructions ..................................................................................................................... 79

8 Product Warranty ................................................................................................................................. 80

8.1 Quasonix Limited Warranty Statement ...................................................................................... 80

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

8.1.1 Extended Warranties ............................................................................................................. 81

9 Technical Support and RMA Requests................................................................................................ 82

10 Appendix A – Preset Option ............................................................................................................. 83

12 Appendix B – Acronym List .............................................................................................................. 84

List of Figures

Figure 1: Model Number Construction Description for nanoTX™ and nanoPuck™..................................... 7

Figure 2: CCSDS 131.0-B-1 Rendering of Basic Convolutional Encoder Diagram .................................... 13

Figure 3: Fan-cooled Heat Sink and Power Supply .................................................................................... 17

Figure 4: Fan-cooled Heat Sink with nanoTX™.......................................................................................... 17

Figure 5: Pre-wired 15 Pin NANO-D with 36" Pigtails ................................................................................. 18

Figure 6: Pre-wired 21 Pin Nano-D with 36" Pigtails .................................................................................. 18

Figure 7: 15 Pin Nano-D Cable Harness .................................................................................................... 19

Figure 8: 15 Pin Nano-D Cable Male Harness Pins ................................................................................... 19

Figure 9: 21 Pin Nano-D Cable Harness .................................................................................................... 20

Figure 10: MMCX to SMA Adapter Cable ................................................................................................... 20

Figure 11: Ruggedized Handheld Programmer .......................................................................................... 21

Figure 12: USB to Serial Converter Cable .................................................................................................. 21

Figure 13: 1.275 in3 nanoTX™ – 01AA Package ........................................................................................ 22

Figure 14: 15-Pin nano Pin Numbering ....................................................................................................... 23

Figure 15: Outline Drawing, nanoTX™ Telemetry Transmitter – 01AA Package ....................................... 24

Figure 16: 1.275 in3 nanoTX™ - 01AB Package ........................................................................................ 25

Figure 17: 21-Pin nano Pin Numbering ....................................................................................................... 26

Figure 18: Outline Drawing, nanoTX™ Telemetry Transmitter – 01AB Package ....................................... 27

Figure 19: 1.35 in3 nanoPuck™ - 01PE Package ....................................................................................... 28

Figure 20: 16-pin nanoPuck Top Pin Numbering ........................................................................................ 28

Figure 21: Outline Drawing, nanoPuck™ Telemetry Transmitter – 01PE Package ................................... 31

Figure 22: 1.35 in3 nanoPuck™ - 01PD Package ....................................................................................... 32

Figure 23: 16-pin nanoPuck Bottom Pin Numbering .................................................................................. 32

Figure 24: Outline Drawing, nanoPuck™ Telemetry Transmitter – 01PD Package ................................... 34

Figure 25: Male 15-pin Nano-D Connector ................................................................................................. 35

Figure 26: Baseband Signal Timing ............................................................................................................ 37

Figure 27: nanoTX™ Welcome Message ................................................................................................... 39

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Quasonix, Inc.

Figure 28: PCM/FM (Tier 0) PSD and Mask ............................................................................................... 68

Figure 29: SOQPSK-TG (Tier I) PSD and Mask ......................................................................................... 68

Figure 30: Multi-h CPM (Tier II) PSD and Mask ......................................................................................... 69

Figure 31: Phase Noise Limit Curve ........................................................................................................... 70

Figure 32: Vibration / Shock Testing System .............................................................................................. 71

Figure 33: nanoTX™ Mounted for Z-axis Testing ....................................................................................... 71

Figure 34: nanoTX™ Mounted for X-axis Testing....................................................................................... 72

Figure 35: nanoTX™ Mounted for Y-axis Testing....................................................................................... 72

Figure 36: TIMTER™ Vibration Profile ....................................................................................................... 72

Figure 37: Z-axis Vibration Spectrum ......................................................................................................... 73

Figure 38: Y-axis Vibration Spectrum ......................................................................................................... 74

Figure 39: X-axis Vibration Spectrum ......................................................................................................... 74

Figure 40: Shock Pulse, Z-axis Positive ..................................................................................................... 75

Figure 41: Shock Pulse, Z-axis Negative .................................................................................................... 76

Figure 42: Shock Pulse, Y-axis Positive ..................................................................................................... 76

Figure 43: Shock Pulse, Y-axis Negative .................................................................................................... 77

Figure 44: Shock Pulse, X-axis Positive ..................................................................................................... 77

Figure 45: Shock Pulse, X-axis Negative .................................................................................................... 78

List of Tables

Table 1: Model Configuration Example ......................................................................................................... 9

Table 2: Frequency Band Codes .................................................................................................................. 9

Table 3: Clock and Data Interface Codes ................................................................................................... 10

Table 4: Serial Control Interface Codes ...................................................................................................... 10

Table 5: ARTM Tier 0 Codes ...................................................................................................................... 10

Table 6: ARTM Tier I Codes ....................................................................................................................... 10

Table 7: ARTM Tier II Codes ...................................................................................................................... 11

Table 8: Legacy Codes ............................................................................................................................... 11

Table 9: Output Power Codes ..................................................................................................................... 11

Table 10: Power Supply DC Input Current at Standard Input Voltage ....................................................... 12

Table 11: Package Codes ........................................................................................................................... 12

Table 12: Standard Bit Rates Compared to Low/High Rate Options .......................................................... 14

Table 13: nanoTX™ 01AA Pin Assignments .............................................................................................. 23

Table 14: nanoTX™ 01AB Pin Assignments .............................................................................................. 26

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 15: nanoPuck™ 01PE Pin Assignments (N4 Top) ........................................................................... 29

Table 16: nanoPuck™ 01PE Pin Assignments (N6 Top) ........................................................................... 30

Table 17: nanoPuck™ 01PD Pin Assignments (N3 Bottom) ...................................................................... 33

Table 18: TTL Baseband Connector Pinout................................................................................................ 36

Table 19: Standard and Optional User Commands .................................................................................... 40

Table 20: DC Input Current at Standard Input Voltage ............................................................................... 65

Table 21: nanoTX™ Environmental Specifications .................................................................................... 65

Table 22: nanoTX™ EMI Compatibility ....................................................................................................... 66

Table 23: Carrier Frequencies (MHz) ......................................................................................................... 66

Table 24: Transmitter BER Specifications .................................................................................................. 67

Table 25: K and m Values per Waveform ................................................................................................... 67

Table 26: Random Vibration Spectrum ....................................................................................................... 73

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

1 Introduction

1.1 Description

This document describes the Installation and Operation of Quasonix’ nanoTX™ and nanoPuck™ Multi- mode

Digital Telemetry Transmitters. The nanoTX™ and nanoPuck™ are designed to transmit airborne telemetry data

from a test article to ground stations. The transmitters are developed, manufactured, and supported by:

Quasonix, Inc.

6025 Schumacher Park Drive

West Chester, OH 45069

CAGE code: 3CJA9

1.1.1 Nomenclature

The nanoTX™ and nanoPuck™ models are available in a number of variations, depending on the options specified

at the time of order. The type of features and modes installed in each unit are identified in the model number, as depicted in Figure 1. Package field codes are listed in Table 11. Detailed information for packages other than 01AA

is located in the TIMTER™ Transmitter Packages document, available at the Quasonix web site. For questions

about specific packages, please contact Quasonix.

Figure 1: Model Number Construction Description for nanoTX™ and nanoPuck™

In this manual, the words Terminal Control and Serial Control have the same meaning and are used synonymously throughout this manual. Serial control originates from configuring the transmitter from a computer’s legacy RS 232/422 serial communications (COM) port. Terminal Control reflects the more generic case where the transmitter could be controlled by other standard computer interfaces such as Ethernet.

QSX-V S B 2 1 1- 1 0 05- - 04 - 04AB - CF

Transmitter Part Numbering Example

PCM/FM

SOQPSK

-TG

Legacy

Standard

Prefix

Frequency Band Code

(refer to page 2 for list)

Clock and Data

Interface code

(refer to page 4

for list)

Serial Control Interface

2 = RS-232

T= TTL

Mode:

1= Enabled

0=Not enabled

ARTM CPM

Options, separated

by hyphens

(example clock

free)

Package Code

(refer to page 3)

Pinout Code

(Contact

Quasonix)

Power Code

(refer to table

this page)

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Information in this manual applies to all nanoTX™ and nanoPuck™ models, unless otherwise specified. Other

TIMTER™ transmitter models are covered in separate user manuals, available for download from the company

website: www.quasonix.com. The nanoTX™ and nanoPuck™ are available with the following software and hardware options. Refer to section 1.2

for detailed descriptions of each option.

• AC Automatic carrier wave output

• BRx Non standard baud rate for serial protocol

• C7 Quasonix interpretation of IRIG 106-17 Appendix 2-C serial control protocol

• CE Convolutional encoder (includes NRZ-M encoding)

• CF Clock-free baseband interface

• DP Dual power (Ability to set a low and a high setting, hardware controlled*

• FO Frequency Offset

• GN GPS notch filters to meet 115 dBm in 3 kHz band at L1 and L2 – Include this hardware option

with order

• HR Increases max bit rate up to 46 Mbps (23 Mbps for PCM/FM) (20 Mbps max for Clock Free

mode)

• ID Internal Clock and Data can be saved as a power-up default

• LC Low current in the RF Off state, 10 mA (hardware option)

• LD LDPC forward error correction encoding

• LD6 Extended LDPC

• LR Decreases min bit rate to 50 kbps (25 kbps for PCM/FM) (50 kbps min for Clock Free mode)

• MS Modulation scaling

• PS Enable hardware presets (specify 2, 4, 8, or 16 – PS2, PS4, PS8, PS16)

• PW020 RF Output 20 mW (+13 dBm)

• STDN Supports Spacecraft Tracking and Data Network (PM/BPSK) mode

• VF Variable FIFO Depth

• VP Variable power (32 settings, spanning 24 dB), software controlled*

• WV Wide input voltage range

Refer to Table 19 in section 4.2.1 for detailed descriptions of each option. Due to input connector pin count limitations, certain combinations of options are not available. Please contact Quasonix for support in ordering nanoTX™ options or for information regarding upgrades to nanoTX™ units that you may already own.

The model number identifies the configuration of the unit. For example, model number QSX-VSTT-1100-01-N101AA-CF-WV defines a unit configured as follows:

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 1: Model Configuration Example

Identifiers

Description

QSX

Quasonix Product

Variable bit rate

S band

TTL clock and data interface

TTL serial control interface code

1100

Tier 0 present, Tier I present, Tier II absent, Legacy absent

1 Watt RF output

Pinout code

01AA

nanoTX™ package code

Clock-free baseband interface option

Wide Voltage option

1.2 Model Number Field Codes

1.2.1 Frequency Band

Frequency band codes are listed in Table 2. All frequency bands may be tuned 0.5 MHz above or below the stated frequency.

Table 2: Frequency Band Codes

Frequency

Band Code

Band

Minimum

Frequency

Maximum

Frequency

Default

Frequency

Tuning

Steps

Lower S

2200.5 MHz

2300.5 MHz

2250.5 MHz

0.5 MHz N Upper S

2300.5 MHz

2394.5 MHz

2370.5 MHz

0.5 MHz

2200.5 MHz

2394.5 MHz

2370.5 MHz

0.5 MHz

1.2.2 Clock and Data Interface

Clock and data interface codes are listed in Table 3.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 3: Clock and Data Interface Codes

Clock and

Data

Interface

Code

Baseband Clock and Data Interface

Defaults

TTL (10k ohms to ground)

TTL 10k ohms

LVDS (Low Voltage Differential Signal)

LVDS

RS-422 (120 ohms differential)

422 120 ohms

TTL (75 ohms to ground)

TTL 75 ohms

1.2.3 Serial Control Interface

Serial control interface codes are listed in Table 4.

Table 4: Serial Control Interface Codes

Serial Control

Interface Code

Serial Control Interface

RS-232; 57,600 baud rate

TTL; 57,600 baud rate

1.2.4 ARTM Tier 0 (PCM/FM)

ARTM Tier O codes are listed in Table 5.

Table 5: ARTM Tier 0 Codes

Part Number Code

PCM/FM (ARTM Tier 0)

Absent

Present

1.2.5 ARTM Tier I (SOQPSK-TG)

ARTM Tier I codes are listed in Table 6.

Table 6: ARTM Tier I Codes

Part Number Code

SOQPSK-TG (ARTM Tier I)

Absent

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Quasonix, Inc.

Present

1.2.6 ARTM Tier II (Multi-h CPM)

ARTM Tier II codes are listed in Table 7.

Table 7: ARTM Tier II Codes

Part Number Code

Multi-h CPM (ARTM Tier II)

Absent

Present

1.2.7 Legacy

Legacy modes include BPSK, QPSK, and OQPSK. Legacy codes are listed in Table 8.

Table 8: Legacy Codes

Part Number Code

Legacy Modes

Absent

Present

1.2.8 Output Power

All nanoTX™ models are available with 1 W to 10 W output power, as shown in Table 9. The nanoPuck™ models are available with 1 W, 2 W, or 5 W output power.

Table 9: Output Power Codes

Power Code

RF Output Power

1 Watt (+30 dBm), minimum

2 Watt (+33 dBm), minimum

5 Watt (+37 dBm), minimum

10 Watt (+40 dBm), minimum

The input current and standard input voltages for all nanoTX™ and nanoPuck™ models are listed in Table 10.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 10: Power Supply DC Input Current at Standard Input Voltage

nanoTX™ Model

Input Current

S band, 1 Watt

450 mA max., 350 mA typ. @ 28 VDC

S band, 2 Watt

570 mA max., 480 mA typ. @ 28 VDC

S band, 5 Watt

1.0 A max., 800 mA typ. @ 28 VDC

S band, 8 or 10 Watt

1.3 A max., 1.1 A typ. @ 28 VDC

1.2.9 Packages

Package codes are listed in Table 11.

Table 11: Package Codes

Model Number

Code

Package Dimensions (Excluding Connectors)

01Ax

1.275 in3 1.250” x 3.400” x 0.300” (H)

01Px

1.280 in3 2.300” (Dia) x 0.325” (H)

1.2.10 Automatic Carrier Wave Output Option - AC

This option allows the TIMTER™ to transmit a carrier wave when the clock input is absent, which would normally cause the RF output to be turned off.

1.2.11 Baud Rate Option – BRx

The BR option changes the serial communications default baud rate on the transmitter to the one selected. A number from 0-8 follows the BR option request. Corresponding values are as follows: 0 = 57600 (Standard default for all Quasonix transmitters); 1 = 4800; 2 = 9600; 3 = 19200; 4 = 38400; 5 = 56000; 6 = 57600; 7 = 115200, 8 = 230400.

1.2.12 CP07 Control Protocol Option – C7

The Quasonix interpretation of IRIG 106-17, Appendix 2-C serial control protocol (CP07) “provides standards for commands, queries, and status information when communicating with telemetry transmitters configured with communication ports.” The Basic command set contains the minimum (required) commands for transmitter control, query, and status. The Extended command set contains optional commands that may or may not be implemented at the manufacturer’s discretion. CP07 is enabled when the C7 option is requested.

The default baud rate for CP07 transmitters is 9600.

1.2.13 Convolutional Encoder Option – CE

The CE option enables convolutional encoding and NRZ-M conversion. This encoding adds redundant information to the transmitted data stream to help detect and correct bit errors that may occur, particularly due to predominantly Gaussian noise. Use of convolutional encoding requires a matching Viterbi decoder in the receiver to extract the source data. The encoded data rate will be twice the source data rate, and the occupied bandwidth will also be doubled.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

For example, the transmitter has two encoders, one for in-phase (“I”) data and one for quadrature (“Q”) data. Call

the input symbol stream I0/Q0, I1/Q1, … . Each encoder outputs 2 bits for every input bit, so call the output bit

stream from the first convolutional encoder I0(1), I0(2), I1(1), I1(2), … , and call the output bit stream from the

second convolutional encoder Q0(1), Q0(2), Q1(1), Q1(2), … . Combining the outputs of the two encoders, then,

the output symbol stream is I0(1)/Q0(1), I0(2)/Q0(2), I1(1)/Q1(1), I1(2)/Q1(2), … . For modes that do not employ Quadrature modulation, such as PCM/FM, Multi-h CPM, and BPSK, only a single

encoder is used.

A single encoder is implemented exactly as described in the “Consultative Committee for Space Data Systems,

Recommendation for Space Data System Standards, TM Synchronization and Channel Coding, CCSDS 131.0-B-1, Blue Book, September 2003, Section 3.”

A basic convolutional encoder block diagram, as illustrated in CCSDS 131.0-B1, is shown in Figure 2.

Figure 2: CCSDS 131.0-B-1 Rendering of Basic Convolutional Encoder Diagram

1.2.14 Clock-free Baseband Interface Option – CF

Clock-free is an optional mode that transmits user data, but uses an internal bit sync to take the place of the normal

external clock. The standard TIMTER™ requires external clock and data inputs. With the CF option, no external

clock is required. The clock is generated directly from the data and a user-specified bit rate.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Because the internal bit sync’s clock takes the place of the normal external clock in clock-free mode, the selected clock source must be external for clock-free just like it is for normal clock/data. This mode is most often used to retrofit older analog transmitters in TM systems where the crypto device does not deliver a clock to the transmitter.

The commanded clock-free rate can be saved using the SV command, and if so, it will be restored at power-on. When the CF option is used, the bit rate range is 0.1 to 35 Mbps for all waveform modes. It is limited by the bit rate achievable for the current mode. (Refer also to the HR and LR options for extended bit rates, and the ID option for Internal Clock and Data.)

Do not confuse the CF option with CS/DS commands. Internal clock (CS 1 Command) is used when the transmitter is to be a test source only. The unit transmits the

selected internal data pattern (DS 1 command) at the bit rate set by the user via the IC command. The internal clock is not used to transmit actual payload data.

External clock (CS 0 Command) is the normal mode: the user supplies clock and data, or in clock-free mode, the user supplies only valid data. Refer to Table 19 for user commands.

1.2.15 Dual Power Option – DP

The standard TIMTER™ operates at its full rated RF output power. The DP option provides two softwareprogrammed, hardware-actuated settings, designated by the user as “high power” and “low power”. There are 32

choices for “high power” and 32 choices for “low power”. The low power setting can provide as much as 24 dB of

attenuation from the high power setting.

1.2.16 Frequency Offset Option – FO

This option is used to set frequencies that are NOT aligned to the synthesizer step size for their units, typically 500 kHz, and it enables the FO user command.

1.2.17 GPS Notch Option – GN

Use this option to specify GPS notch filters to meet 115 dBm in 3 kHz band at L1 and L2 (hardware note). Available for S band only. Consult Quasonix for pricing and availability.

1.2.18 High Bit Rate Option – HR

The standard nanoTX™ supports bit rates from 0.1 to 28 Mbps in SOQPSK-TG and MULTI-h CPM modes, 0.05 to 14 Mbps in PCM/FM (Tier 0) mode and in all modes included with the PSK option. The HR option increases the bit rate to a maximum of 46 Mbps (23 Mbps for PCM/FM). (The maximum bit rate with a Clock Free transmitter is 35 Mbps for SOQSPK-TG and MULTI-h CPM modes; 23 Mbps for PCM/FM and all legacy PSK modes.) Refer to the CF option for information about the Clock Free option. Refer to Table 12 for bit rate comparisons by mode.

Table 12: Standard Bit Rates Compared to Low/High Rate Options

Standard Bit Rate

With Low Rate Option

-LR

With High Rate Option

-HR

ARTM Tier 0 Modulation

(PCM/FM)

0.05 -14 Mbps

Down to 0.025 Mbps

Up to 23 Mbps

ARTM Tier I Modulation

(SOQPSK-TG)

0.1 - 28 Mbps

Down to 0.050 Mbps

Up to 46 Mbps

ARTM Tier II Modulation

(Multi-h CPM)

0.1 - 28 Mbps

Down to 0.050 Mbps

Up to 36 Mbps

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Standard Bit Rate

With Low Rate Option

-LR

With High Rate Option

-HR

Legacy Modulation

(BPSK)

0.05 - 10 Mbps

N/A

Legacy (QPSK, OQPSK)

0.05 - 20 Mbps

N/A

1.2.19 Internal Clock and Data Option – ID

The ID option allows the CS and DS user settings to be reloaded on power up or on a manual recall of a setup. Without the ID option, CS and DS are both forced to 0. Refer to the CF option for information about the Clock Free option.

1.2.20 Limited Current Option - LC

This option is used to specify low current in the RF Off state. Current draw is less than 10 mA when the transmitter is Off. This is a hardware pin option.

1.2.21 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD

This option provides the Low Density Parity Check (LDPC) encoding, which is being considered for use on the iNET program. LDPC has been adopted by the Range Commander’s Council, IRIG 106-17, Appendix 2-D.

1.2.22 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD6

This option adds the extended LDPC option to the unit. It lets the user select from the six implemented LDPC codes, and allows the randomizer command to select the CCSDS randomizer, if LDPC is enabled. Adding this option automatically enables the existing LD option.

The IRIG standard calls out six variants of LDPC codes—all combinations of two different information block sizes (k=4096 bits and k=1024 bits) and three different code rates (r=1/2, r=2/3, and r=4/5).

k=4096, r=1/2

k=1024, r=1/2

k=4096, r=2/3

k=1024, r=2/3

k=4096, r=4/5

k=1024, r=4/5

1.2.23 Low Bit Rate Option – LR

The standard nanoTX™ supports bit rates from 0.1 to 28 Mbps in SOQPSK-TG and MULTI-h CPM modes, 0.05 to 14 Mbps in PCM/FM (Tier 0) mode and in all modes included with the PSK option. The LR option decreases the bit rate to a minimum of 50 kbps (25 kbps for PCM/FM). (The minimum bit rate with a Clock Free transmitter is 50 kbps for all modes.) Refer to the CF option for information about the Clock Free option. Refer to Table 12 for bit rate comparisons by mode.

1.2.24 Modulation Scaling Option – MS

This option enables the MS and MJ commands which allow a user to set the modulation scaling factor and scale the modulation index of the transmitted signal. For additional information, refer to Table 19, or contact Quasonix.

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Quasonix, Inc.

1.2.25 Hardware Preset Option – PS2, PS4, PS8, or PS16

The TIMTER™ supports one or more hardware presets. A single preset defines the complete state of the transmitter, including carrier frequency, modulation mode, data polarity, randomizer state, etc. Without the PS option, the TIMTER™ supports only one hardware preset, which it reverts to at power-up. The PS in the option string specifies that the unit supports multiple hardware presets (2, 4, 8, or 16). Presets are engaged by grounding various combinations of pins on the terminal/parallel control selection. The number of presets available and which pins engage the presets depend on the other features specified. Due to the limited number of pins available, the PS option may require the elimination of the RF On/Off pin. Due to firmware part number parsing requirements, the hardware preset option code must be at the very end of the part number to be valid. On units which use the standard MDM-15 connector, the ZY command displays the connector pinout showing preset pin locations. For more information, refer to Appendix A – Preset Option.

1.2.26 Power Output Option – PW020

When ordered with Power Code 00, this option enables RF output at 20 mW (+13 dBm).

1.2.27 Spacecraft Tracking and Data Network Option – STDN

This option supports the PM/BPSK mode (Spacecraft Tracking and Data Network mode).

1.2.28 Variable FIFO Depth Option – VF

This option enables the VF command which allows the user to set the FIFO depth on the transmitter for controlling latency time between bits in and bits out. The range is 0 to 255 with 128 being the default. If no value is entered, the current value displays.

1.2.29 Variable Power Option – VP

The standard TIMTER™ operates at its full rated RF output power. The software-based VP option provides 32 discrete power level settings, spanning a range of as much as 24 dB. The steps are non-uniform, but steps are typically no larger than 1.1 dB.

1.2.30 Wide Input Voltage Range Option – WV

The standard nanoTX™ operates from +28 + 4 VDC. The WV option extends operating input voltage range as shown in following table.

Voltage Ranges with WV Option

+6.5 to +34 VDC for 1 Watt version

+6.5 to +34 VDC for 2 Watt version

+12 to +34 VDC for 5 Watt version

+21 to +34 VDC for 10 Watt version

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

2 Accessories

Quasonix offers a number of optional accessories for the nanoTX™ transmitter, including a fan-cooled heat sink, 15 pin Nano-D and 21 pin Nano-D connectors, complete Nano-D cable assemblies, an MMCX to SMA cable, a ruggedized handheld programmer, and a USB to serial converter cable. Contact Quasonix for pricing and availability of nanoTX™ accessories.

2.1 Fan-cooled Heat Sink

Part Number: QSX-AC-32-HS-12V The heat sink assembly includes an integral +12 VDC fan and a power supply transformer, shown in Figure 3. The

heat sink is shown with a mounted nanoTX™ in Figure 4.

Figure 3: Fan-cooled Heat Sink and Power Supply

Figure 4: Fan-cooled Heat Sink with nanoTX™

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

2.2 Pre-wired 15 Pin Nano-D TTL Connector

Part Number: QSX-AC-NANO15-36PT A 15 pin Nano-D connector with 36” color-coded pigtail is shown in Figure 5.

Figure 5: Pre-wired 15 Pin NANO-D with 36" Pigtails

2.3 Pre-wired 21 Pin Nano-D

Part Number: QSX-AC-NANO21-36PT A 21 pin Nano-D connector with 36” color-coded pigtail cables is shown in Figure 6.

Figure 6: Pre-wired 21 Pin Nano-D with 36" Pigtails

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

2.4 15 Pin Nano-D Wiring Harness

Part Number: QSX-AC-NANO15-HARNESS A 15 pin Nano-D wiring harness for connecting to transmitters with TTL clock and data baseband interface is shown

in Figure 7. It includes banana plugs for power and ground, BNC connectors for clock and data, and a DB-9 connector for serial control and is 35 to 36 inches long depending on the connectors.

Figure 7: 15 Pin Nano-D Cable Harness

Figure 8: 15 Pin Nano-D Cable Male Harness Pins

2.5 21 Pin Nano-D Wiring Harness

Part Number: QSX-AC-NANO21-HARNESS A 21 pin Nano-D wiring harness for connecting to transmitters with RS-422 clock and data baseband interface is

shown in Figure 9. It includes banana plugs for power and ground, BNC connectors for clock and data, and a DB-9 connector for serial control and is 33 to 36 inches long depending on the connectors.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 9: 21 Pin Nano-D Cable Harness

2.6 MMCX to SMA Adapter Cable

Part Number: QSX-AC-MMCX-SMA-R-R-34 A 13.5 inch long MMCX to SMA adapter cable with an RG-316 coax connector, right angle MMCX, and right

angle SMA, is shown in Figure 5.

Figure 10: MMCX to SMA Adapter Cable

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

2.7 Ruggedized Handheld Programmer

Part Number: QS-PROG0021050 The handheld programmer is an ultra-rugged Pocket PC with custom Quasonix software that allows the user to

configure transmitters through its serial interface directly in the field. The programmer is shown in Figure 11.

Figure 11: Ruggedized Handheld Programmer

2.8 USB to Serial Converter Cable

Part Number: QSX-AC-USBSER-CONV The 36 inch long USB to serial converter cable allows for configuration of the transmitter with a computer that does

not have a serial port. The cable is pictured in Figure 12. An 18 inch cable is also available.

Figure 12: USB to Serial Converter Cable

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

3 Installation Instructions

3.1 Mechanical

3.1.1 01AA Package

The 01AA package, shown in Figure 13, measures 1.250" x 3.400" x 0.300" and provides a TTL interface. It uses a female 15 Pin nano interface connector and a female MMCX RF connector.

The standard 1.3 cubic inch nanoTX™ (“01AA” package) is designed to be mounted by four (4) 4-40 screws through the holes in the four corners, as depicted in Figure 15.

Figure 13: 1.275 in3 nanoTX™ – 01AA Package

The pin assignments for the 01AA package are listed in Table 13. Pin numbers are shown in Figure 14. These pin assignments can change, depending on the options selected. Consult Quasonix for details. Additional package information is presented in the document “TIMTER™ Transmitter Packages” on the Quasonix web site.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 14: 15-Pin nano Pin Numbering

Table 13: nanoTX™ 01AA Pin Assignments

Function

Serial Control Ground

Serial Control Reply from Transmitter

Control Input to Transmitter

N/C

TTL Data

TTL Clock

TTL Clock and Data Ground

RF On/Off

DC Power Return

DC Power In

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 15: Outline Drawing, nanoTX™ Telemetry Transmitter – 01AA Package

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

3.1.2 01AB Package

The 01AB package, shown in Figure 16, measures 1.250" x 3.400" x 0.300" and provides an RS-422 interface. It uses a female 21 Pin nano interface connector and a female MMCX RF connector.

Figure 16: 1.275 in3 nanoTX™ - 01AB Package

The pin assignments for the 01AB package are listed in Table 14. Pin numbers are shown in Figure 17. These pin assignments can change, depending on the options selected. Consult Quasonix for details. Additional package information is presented in the document “TIMTER™ Transmitter Packages” on the Quasonix web site.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 17: 21-Pin nano Pin Numbering

Table 14: nanoTX™ 01AB Pin Assignments

Function

Serial Control Ground

RS-232 Serial Control Reply

RS-232 Serial Control Input

N/C

Differential Data Positive

Differential Clock Positive

DC Power Return

RF On/Off

DC Power Return

DC Power In

N/C

Differential Data Negative

Differential Clock Negative

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 18: Outline Drawing, nanoTX™ Telemetry Transmitter – 01AB Package

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

3.1.3 01PE Package

The 01PE package, shown in Figure 19, measures 2.3" x 0.325 = 1.35 in3 and provides a TTL or RS-422 interface. It uses a female SAMTEC FTSH-108-04-F-D 16 pin nano interface connector and a female MMCX RF connector.

The pin assignments for the 01PE package are listed in Table 15 and Table 16. Pin numbers are shown in Figure 20. These pin assignments can change, depending on the options selected. Consult Quasonix for details. Additional package information is presented in the document “TIMTER™ Transmitter Packages” on the Quasonix web site.

Figure 19: 1.35 in3 nanoPuck™ - 01PE Package

Figure 20: 16-pin nanoPuck Top Pin

Numbering

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 15: nanoPuck™ 01PE Pin Assignments (N4 Top)

Function

LVTTL Serial Control Input to Transmitter

LVTTL Serial Control Reply from Transmitter

N/C

TTL Clock

TTL Data

TTL Clock and Data Ground

RF On/Off

N/C

DC Power Return

DC Power In

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 16: nanoPuck™ 01PE Pin Assignments (N6 Top)

Function

LVTTL Serial Control Input to Transmitter

LVTTL Serial Control Reply from Transmitter

N/C

Differential Clock Positive

Differential Data Positive

Serial Control Ground

RF On/Off

N/C

Differential Clock Negative

Differential Data Negative

DC Power Return

DC Power In

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 21: Outline Drawing, nanoPuck™ Telemetry Transmitter – 01PE Package

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

3.1.4 01PD Package

The 01PD package, shown in Figure 22, measures 2.3" x 0.325 = 1.35 in3 and provides a TTL interface. It uses a female SAMTEC FTSH-108-04-F-D 16 pin nano interface connector and a female MMCX RF connector.

The pin assignments for the 01PD package are listed in Table 17. Pin numbers are shown in Figure 23. These pin assignments can change, depending on the options selected. Consult Quasonix for details. Additional package information is presented in the document “TIMTER™ Transmitter Packages” on the Quasonix web site.

Figure 22: 1.35 in3 nanoPuck™ - 01PD Package

Figure 23: 16-pin nanoPuck Bottom Pin

Numbering

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 17: nanoPuck™ 01PD Pin Assignments (N3 Bottom)

Function

LVTTL Serial Control Input to Transmitter

LVTTL Serial Control Reply from Transmitter

N/C

TTL Clock

TTL Data

TTL Clock & Data Ground

RF On/Off

N/C

DC Power Return

DC Power In

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 24: Outline Drawing, nanoPuck™ Telemetry Transmitter – 01PD Package

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

3.2 Thermal

It is important that the bottom surface (on the face opposite the product label) be securely attached to a baseplate capable of dissipating the power produced by the transmitter model in use. This mounting baseplate must be flat, smooth, and clean. Contact Quasonix for the heat sink power dissipation required for your nanoTX™ model.

ATTENTION: Do not operate the transmitter without a proper heat sink. Failure to do so may lead to permanent damage to the unit and will void the warranty. Overheating can occur in a matter of seconds when a transmitter is

not properly heat-sinked. In absolutely no case should any type of stickers or labels be applied to the bottom surface of the transmitter.

The heat sink required for a particular transmitter depends heavily on the installation. Factors such as altitude, air temperature, air flow, and mass of the mounting surface all have a substantial impact on the flow of heat away from the transmitter. Quasonix offers a fan-cooled heat sink, as shown in Figure 3. Please contact Quasonix for heat sink recommendations for your particular nanoTX™ transmitter.

Regardless of the heat sink, Quasonix strongly suggests using a thermal pad, such as Q-Pad® II from Bergquist.

3.3 Electrical

The standard nanoTX™ has two external connectors, a 15- or 21-pin single-row nano-D baseband connector, and a right-angle through-hole MMCX RF connector. The 15-pin nano-D is only available for TTL-level clock and data inputs (standard 01AA package). RS-422 clock and data inputs require the 21-pin nano-D connector (01AB package).

A photo of the male 15-pin nano-D connector is shown in Figure 19, including identification of pin 1 and pin 15.

Figure 25: Male 15-pin Nano-D Connector

3.3.1 TTL Clock and Data Baseband

The pin assignments of the TTL clock and data baseband connector are outlined below. TTL baseband connector pinouts are listed in Table 18.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 18: TTL Baseband Connector Pinout

Function

Notes

Serial Control Ground

Ground to controller

Serial Control Reply (Transmitter TXD)

Replies from TX to controller

Serial Control Input (Transmitter RXD)

Commands from controller to TX

No Connection

6 TTL Data

TTL data input

TTL Clock

Synchronous with data, data valid on falling edge

TTL Data/Clock Ground

RF On / Off

Power Ground

Power +28 VDC +/- 4 VDC

Refer to Table 20: DC Input Current at Standard Input Voltage

Power +28 VDC +/- 4 VDC

3.3.1.1 Pin Information

Pin 1 is the ground connection to the serial control device. This pin is connected internally to pin 8, and pins 10, 11, and 12, making the transmitter the central ground connection for the control device, the data/clock source, and power.

Pin 2 carries the responses from the transmitter to the serial control device. This information is ASCII text, at RS232 levels, at 57,600 baud, 8 bits, no parity, 1 stop bit, no handshaking.

Pin 3 carries the commands from the serial control device to the transmitter. This information is ASCII text, at RS232 levels, at 57,600 baud, 8 bits, no parity, 1 stop bit, no handshaking.

Pins 4, 5, and 9 are available to support optional features. Pin 6 is TTL input data. Input impedance is 10k ohms to ground (optionally 75 ohms). The transmitter reads the data

pin on the clock falling edge. Pin 7 is TTL input clock. Input impedance is 10k ohms to ground (optionally 75 ohms). The transmitter reads the

data pin on the clock falling edge. Pin 8 is the ground connection to the clock and data source. This pin is connected internally to pin 1, and pins 10,

11, and 12, making the transmitter the central ground connection for the control device, the data/clock source, and power.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Pin 9 is normally a single bit input that turns on or off the RF output power. This pin is pulled high internally. Refer to the RF and RZ commands in Table 19.

Pin 10 is the ground connection to the DC power source. This pin is connected internally to pin 1, pin 8, and pins 11 and 12, making the transmitter the central ground connection for the control device, the data/clock source, and power.

Pin 11 is the ground connection to the DC power source. This pin is connected internally to pins 1, 8, 10, and 12, making the transmitter the central ground connection for the control device, the data/clock source, and power.

Pin 12 is the ground connection to the DC power source. This pin is connected internally to pins 1, 8, 10, and 11, making the transmitter the central ground connection for the control device, the data/clock source, and power.

Pin 13 is the positive connection to the DC power source. Pins 13, 14, and 15 are tied together internally. Refer to Table 20.

Pin 14 is the positive connection to the DC power source. Pins 13, 14, and 15 are tied together internally. Pin 15 is the positive connection to the DC power source. Pins 13, 14, and 15 are tied together internally.

3.3.2 Signal Timing

The data is sampled on the falling edge of the clock, as shown in Figure 26.

Figure 26: Baseband Signal Timing

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

4 Operating Instructions

4.1 Power-on Operation

Upon power up, the transmitter loads any stored parameters present in its nonvolatile memory. If parameters have not been stored previously, the transmitter initializes default parameters and then stores them in the first preset slot,

0. There are a total of 16 available software-based presets (0 through 15) for saving multiple parameters at once for future use.

4.2 nanoTX™ Serial Control Protocol

The nanoTX™ is controlled via a simple three-wire serial interface (transmit, receive, and ground). The serial port configuration is as follows:

• 57600 baud rate (changeable depending on the configuration option)

• 8 bits

• No parity

• 1 stop bit

• No flow control

For setup and configuration via a standard Windows-based PC, you may use HyperTerminal. For a more flexible, full-featured control interface, we recommend Terminal, available for download from the Quasonix website (Documents tab > Accessories link) or directly at: http://www.quasonix.com/sites/default/files/terminal_ver20080315.zip.

If the terminal program is active when power is applied to the transmitter, the following welcome message displays, as shown in Figure 27. At this point, you can verify that your serial connection is active in both directions by issuing any standard command, such as “FR” to learn the frequency.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Quasonix Multi-Mode Digital Transmitter

Customer Part # = QSX-xxx-xx-xx… Customer Name = Quasonix Customer Contract # = 999999-9 TX Serial # = 1001 Hardware Rev: A PA Rev: F PA Serial #: 1001 PA Model #: XMTR-PAM-10-F-SCPA IRIG 106-09 6025 Schumacher Park Drive West Chester, OH 45069 (513) 942-1287 www.Quasonix.com CAGE CODE: 3CJA9 FPGA HW Type: T4D FPGA version: 001h 02ah FPGA Buld: 0x5B6C5E7C = Aug 9 2018 15:32:12 Firmware version: T4 V1.131 8/9/2018

Preset 0 read SOQPSK>HVA table not valid for any band. DL table not valid for any band. Ready for Commands SOQPSK>RF on/off pin changed from 0 to 1 SOQPSK>BB clock rate out of limits (clk = 0 kHz) SOQPSK>

Figure 27: nanoTX™ Welcome Message

4.2.1 Command Set: Standard and Optional Commands

All standard user commands in Table 19 are one or two alphabetic characters, followed by 0, 1, or 2 arguments. If the command is issued with arguments, there must be a space after the alphabetic characters. The commands are not case sensitive. A carriage return is required to initiate each command except for the single key commands described at the beginning of the table.

Most parameters set by these commands are stored in the unit’s nonvolatile flash memory (CS and DS are the

exception). On power-up, ALL settings are restored from preset 0, which is the default power on configuration. All settings can be changed via the serial control port. Changes made by the user are NOT saved unless the Save

command (SV) is issued from the serial control port before powering down.

*SV Note: Users may save internal clock and data in presets for bench debug use BUT on a power up or when a hardware preset is restored, CS and DS will be forced to 0 (external clock and data). This action prevents a transmitter from powering up or changing hardware presets and being set to internal clock and/or data. The ONLY way to restore CS and/or DS as 1 from a saved configuration is by executing the RC command.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 19: Standard and Optional User Commands

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

[

Frequency Step Down

Left square bracket key retunes the transmitter to the next lower frequency, as determined by the frequency step (FS) parameter

Reply to the control window is the new frequency, in MHz

No Enter key required

Standard

N/A

]

Frequency Step Up

Right square bracket key retunes the transmitter to the next higher frequency, as determined by the frequency step (FS) parameter

Reply to the control window is the new frequency, in MHz

No Enter key required

Standard

N/A

Help

Displays abbreviated list of available commands

No Enter key required

Standard

N/A

Step Down Power

Incrementally steps down the output power level, from 31 down to 0

One step per key press No Enter key required

N/A

Step Up Power

Incrementally steps up the output power level, from 0 up to 31

One step per key press No Enter key required

N/A

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Automatic Carrier Output

Report or set automatic carrier output state

With automatic carrier ON (AC 1), the unit will output an unmodulated, on-frequency carrier if there is no clock present. When automatic carrier is OFF (AC 0), the RF output will be muted in the absence of clock. Note that the AI, CF, and CS commands can create a clock, even when one is not externally applied.

Examples: AC Report the automatic

carrier state AC 0 Set automatic carrier OFF AC 1 Set automatic carrier ON

AC 1

Bit Rate

Report or set the bit rate of the bit sync that is locking to the externally applied data

Not to be confused with “IC”,

which sets the rate of the internally generated clock

Bit rate range is 50 kbps to 20 Mbps for all waveform modes

Examples: BR Report the bit rate BR 5 Set the bit rate to 5 Mbps BR A Set the bit rate

automatically

BR 5

Convolutional Encoder

Enables or disables the convolutional encoder

Examples CC Report convolutional

encoder state CC 0 Set the convolutional

encoder to Disabled CC 1 Set the convolutional

encoder to Enabled

CC 0

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Clock Free

Report or set the clock free state.

Examples: CF Report the clock free

state CF 0 Unit uses its internal bit

sync (internally synthesized) CF 1 Unit uses its externally

applied clock

CF 1

Clock Polarity

Report or set clock polarity

Examples: CP Display the current clock

polarity CP 0 Set clock polarity to NOT

inverted CP 1 Set clock polarity to

inverted CP A Set clock polarity to auto;

Automatically selects the most reliable clock edge

Standard

CP 0

Current Preset Read

Reports the currently selected software preset being used by the transmitter

Standard

N/A

Clock Source

Report or set the clock source Unit always reverts to CS 0

(external) at power-up

Examples: CS Display the current clock

source CS 0 Set clock source to

external CS 1 Set clock source to

internal

When set to internal clock source, the data source must also be set to internal via the DS command in order to have synchronous, usable data.

Standard

CS 0

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Differential Encoding

Report or set differential encoding for the SOQPSK-TG or other PSK mode

(Differential encoding typically disabled for other modes)

If LDPC enabled, DE resets to 0

Examples: DE Report the differential

encoding setting DE 0 Set differential encoding

OFF DE 1 Set differential encoding

Standard

DE 1

Data Polarity

Report or set data polarity

Examples: DP Display the current data

polarity DP 0 Set data polarity to NOT

inverted (OFF) DP 1 Set data polarity to

inverted (ON)

Standard

DP 0

Data Source

Report or set data source state Unit always reverts to DS 0

(external) at power-up

Examples: DS Display current data

source DS 0 Set data source to

external DS 1 Set data source to

internal (value of internal source is set by ID command)

Standard

DS 0

Frequency Offset

Offsets the synthesizer +X MHz and the FPGA -X MHz

Example: FO 0.0055 offsets 5.5 kHz

FO 0

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Frequency

If no argument is passed, it reports the frequency. If an argument is passed, it sets the frequency. The argument specifies the frequency in MHz. If the command is entered with a '?', then the allowed frequency ranges for this unit display.

This command rounds the frequency to the nearest 0.5 MHz. If the rounded frequency is within

one of the transmitter’s allowed

bands, the transmitter will tune that frequency and confirm the change for the user.

If the frequency is outside of the allowed range for the unit, the transmitter will NOT retune but will report an error to the user.

Examples: FR Display the current

frequency FR ? Display allowed frequency

ranges FR 1436.5 Set frequency to

1436.5 MHz

Standard

1436.5

Frequency Step

If no argument is passed, it reports the current frequency step. If an argument is passed, it sets the frequency step size, which is activated by the left and right square bracket keys. The argument specifies the frequency step in MHz, with 0.5 MHz being the smallest available step.

Examples: FS Display the current

frequency step FS 1 Frequency step = 1 MHz

Standard

FS 1

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

H (or HE)

Help

Displays a list of available commands

Commands require a carriage return at the end of the line and may also accept parameters

Some commands may not be enabled depending on required options

Standard

N/A

High Power

Report or set high power level Valid range is 0-31 in 1 dB steps

or 0-31.5 in 0.5 dB steps, depending on the transmitter

Examples: HP Report the present high

power level HP 31 Set high power to 31 HP Max Set high power to the

highest allowable value for the unit

HP Min Set high power to the minimum allowable value for the unit

HP 31

eXtended Help

Displays a full list of available commands

Standard

N/A

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Internal Clock Rate

Report or set the internal clock rate

This rate is used if the clock source is set to internal (CS 1). It

should not be confused with “BR”,

which sets the rate of the internal bit sync, which phase locks to the externally applied data, if Clockfree is enabled.

If no argument is passed, the unit reports the clock frequency. If a valid frequency is given, the internal clock frequency is set. The frequency is in MHz.

Examples: IC Display current internal

clock rate IC 4.95 Set internal clock rate to

4.95 MHz

Valid range is 0.002 MHz –

46.000 MHz Observes same bit rate limits as

HR/LR commands (PCM/FM half) Refer to section 4.2.1.1.1 for

additional IC command detail

Standard

IC 5

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Internal Data Gen

Report or set the internal data pattern

This setting is used if the Data Source is set to internal (DS 1) and the Clock Source is set to internal (CS 1).

When setting the data, the

argument must be “PN6” (or “PN06”), “PN11”, “PN15”, or “PN23”, or a valid 4 digit

hexadecimal value.

Examples: ID Report the internal data

pattern ID PN15 Set internal data

pattern to PN15 ID AA55 Set internal data

pattern to 0xAA55

In SOQPSK mode, ID 5555 or ID AAAA will result in an unmodulated carrier, at the nominal carrier frequency.

Note: If the CP07 option is present, the input argument does

not include the “PN” and a

hexadecimal value requires the

addition of a leading “x”, as shown

in the following example. CP07 Examples: ID Report the internal data

pattern ID 15 Set internal data pattern

to PN15 ID xAA55 Set internal data

pattern to 0xAA55

Standard

ID PN15

IMN

Internal Model Number

Display the internal model number for the transmitter

Standard

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

IMP

Impedance Control

Allows user to change impedance of the clock and data inputs from 75 ohms to 10k ohms

Examples: IMP 0 Set impedance to 10k

input IMP 1 Set impedance to 75

ohms

Clock/Data

interface

code of A

INF

Transmitter Information

Performs an information dump of the most important data in the transmitter

Standard

Input Source Selection

Selects the clock and data source (and user pattern and clock rate, where applicable) using a single command

IS PN15 4.5 Sets unit to internal clock/data with a PN15 pattern at 4.5Mbps

IS AT AUTO Sets unit to use the auxiliary TTL input in clock free mode with auto bit rate enabled

IS EN 10 Sets unit to use the Ethernet interface for both clock and data and to set the desired bit rate to 10 Mbps

Refer to section 4.2.1.1.1 for additional IS command detail

Standard

on all units

version

2.409 or greater

N/A

List Configurations

Lists the stored configurations on the unit

If a configuration number is supplied, then the saved parameters for that configuration are displayed.

Examples: LC List all internal saved

configurations LC 7 Show configuration 7

details

Standard

N/A

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

LDPC Encoding Enable

Enable, disable, or show the current state of the Forward Error Correction (FEC) / Low Density Parity Check (LDPC) encoder

Examples: LD Show the current encoder

state LD 1 Enable the LDPC encoder LD 0 Disable the LDPC

encoder Automatically disables differential

encoding; *PSK modes default to DE enabled

Automatically re-enables DE for SOQPSK mode

Refer to section 4.2.1.1.3 for additional LD command detail

LD, LD6

LD 0

Low Power

Report or set low power level Valid range is 0-31 in 1 dB steps

or 0-31.5 in 0.5 dB steps, depending on the transmitter

Examples: LP Report the present low

power level LP 3 Set low power to 3 LP Max Set low power to the

highest allowable value for the unit

LP Min Set low power to the minimum allowable value for the unit

LP 0

Modes Allowed

Reports the modes enabled on the transmitter, as determined by the part number

Standard

N/A

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

NRZ-M Conversion

Enables or disables the NRZ-L to NRZ-M conversion

Examples: MC Show the current NRZ

state MC 1 Enable the NRZ-L to

NRZ-M conversion MC 0 Disable the NRZ-L to

NRZ-M conversion

MC 0

Modulation Scaling Step Size

Sets the current modulation scaling factor used when the single key Power Step Up and Power Step Down functions are used

Valid range is .0009 to 10.01

MJ 1.5

Modulation

Report or set modulation setting Mode 6, Carrier only, is present

on every transmitter

Examples: MO Report the modulation

setting MO 0 Set modulation to

PCM/FM MO 1 Set modulation to

SOQPSK-TG MO 2 Set modulation to MULTI-

h CPM MO 6 Carrier only, no

modulation

Standard

MO 0 or

the first

one the

customer

has

installed

on the

unit

Example:

MO 1 if

no PCM/FM installed;

MO 2 if

only

CPM

installed

Modulation Scaling

Scales the deviation (modulation index) of the transmitted signal relative to the standard default deviation

Example: For PCM/FM – if the standard

modulation index is 0.7, setting MS to 2.0 scales a modulation index of 1.4

Value range is .09 to 128.01

MS 1

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Overtemperature Control

Enable Enables or disables overtemperature control

OC 0 Disable Overtemperature Control

OC 1 Enable Overtemperature Control

If the transmitter temperature goes above the set limit stored on the device and the current power level is over 25, the transmitter automatically starts to back off power in 2 dB steps to a maximum of 6 dB.

Standard

OC 1

OTA

Over-the-Air Rate

Displays the current baseband and over-the-air bit rates on each channel. This information is also displayed on the RFS output.

OTA Display over-the-air rate

Standard

PSK Filter Select

Sets or shows the current PSK filter selection This is valid if the PSK mode option is enabled and for any *PSK (legacy) modes

AND for DPM (no option required) if that mode exists on the transmitter.

Valid filter range is 0 to 255

Examples: PF Show current PSK filter PF 42 Set PSK filter to 42

All *PSK

PF 255

(PF 10 if

DPM)

PR or RE

Restore Defaults

Restores factory default parameters for the unit

Default is currently the lowest number modulation supported by the transmitter with the selected band and frequency limits

Default power level is Full power

Standard

N/A

Query All

Displays common device settings in one compact display

Display is a subset of SS or ST

Standard

N/A

QT or TE

Query Temperature

Report the temperature in degrees Celsius

Standard

N/A

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

RA or RN

Randomizer

Report or set randomizer state

Examples: RA Report the randomizer

state RA 0 Set randomizer OFF RA 1 Set IRIG-106 randomizer

ON RA 2 Set CCSDS randomizer

Standard

RA 2

requires

LD6 option and

LDPC

enabled

RA 0

(or PP or

RL)

Recall Configuration

Load a saved configuration into the active configuration if the configuration number entered is valid

If the selected configuration has no valid data or the command is issued without a configuration number, the transmitter is initialized with the default data and saved.

Example: RC Load configuration 0

(default setup) RC 3 Load configuration 3

Standard

N/A

RF Output

Report or set RF output control state

Note that there may be no RF output, even if the software control is set to ON. This can happen if there is no valid clock in use, or if the RF on/off hardware pin is in the OFF state.

Examples: RF Report the RF output

state RF 0 Set RF output OFF RF 1 Set RF output ON

Standard

RF 1

(if option

CP07,

default is

RF 0)

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

RF On/Off Pin Polarity

Set or show the polarity of the RF on/off pin, which is pulled high internally to 3.3 VDC

RZ 0 means the RF is ON when the RF on/off pin is low

RZ 1 means the RF is ON when the RF on/off pin is high (floating)

Examples: RZ Show the current RF

on/off polarity RZ 0 Set RF on/off polarity to

“pin low = on” RZ 1 Set RF on/off polarity to

“pin high = on” The default polarity on most

Quasonix transmitters is high. The RF On/Off pin is a hard OFF

control. No matter what state everything else is in, setting this switch input to the inactive state will turn RF Off.

Standard

RZ 1

Cycles per Bit

Report or set cycles per bit (The subcarrier frequency is

cycles per bit times bit rate.) SB Report cycles per bit SB x Set cycles per bit

STDN

SB 0

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Modulation Sweep

Sweeps the transmitter modulation between the provided limits with the provided step size at a fixed rate

Examples: SM Toggle sweep ON/OFF

with current values SM ? Displays current sweep

state SM start stop step msec start = low index stop = high index step = index step size msec = milliseconds between

steps

Disabled

Serial/Part Number

Report the serial number and part number for the unit

Standard

N/A

Show Settings

Displays most of the common device settings in one compact display

Standard

N/A

SV or SA

(or PS or

PW)

Save Configuration

Saves the current transmitter configuration to a user-selected preset number, from 0 to 15 where 0 is the power-on default unless hardware presets are enabled

The SV command also allows the user to assign an alias to the desired preset.

Examples: SV 1 Save current

configuration to preset 1 SV 7 xyz Save current

configuration to preset 7 and assign alias name “xyz”

*Refer to SV Note below for exception

Standard

N/A

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

System Status

Displays the system status of the transmitter

The first argument specifies the period, in seconds, between status updates. Zero (0) disables continuous monitoring.

The second argument specifies the number of status lines between header outputs.

Examples: SY Displays current status

report settings SY 5 Sets status output period

to 5 seconds SY 5 100 Sets status

header output once every 100 status updates

Refer to section Error! Reference s ource not found. for additional SY command detail

Standard

N/A

TXBR

Transmitter Baud Rate

Temporarily changes system baud rate; for odd baud rates (non-standard) accuracy may vary

Valid range is about 300 to 230,400 baud – Not saved when the transmitter is powered off

Examples: TXBR Displays current system

baud rate TXBR 200 Sets system baud

rate to 200

Standard

N/A

VE or RV

Version (Revision Information)

Report the current Firmware (software) version information for the transmitter

Standard

N/A

Variable FIFO Depth

Sets the FIFO depth for controlling latency time between bits in and bits out

Valid range is 0 to 255 Example: VF 120 (120 = Variable

Power)

VF 128

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Mnemonic Command

Name

Description

Option (s)

Required

Setting

Saved?

Factory

Default

Variable Power

Report or set variable power level Valid range is 0-31 in 1 dB steps

or 0-31.5 in 0.5 dB steps, depending on the transmitter

Examples: VP Report the variable power

level VP 31 Set variable power to 31 VP 5 Set variable power to 5 VP Max Set variable power to the

highest allowable value for the unit

VP Min Set variable power to the minimum allowable value for the unit

VP 0

Show Preset Inputs

Displays the current preset inputs on the parallel connector

Available presets depend on the number specified for the unit

Values are PS2, PS4, PS8, or PS16

Standard

N/A

Show Options

Displays the current hardware configuration and options on the transmitter

Standard

N/A

All commands generate a response of one or more lines, which indicate successful completion of the command or an error.

After a command’s response, the transmitter displays the mode name followed by the character “>” as a prompt, which may be interpreted as meaning the radio is ready to accept new characters. If the CP07 option is enabled, only the character “>” displays as a prompt.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

4.2.1.1 Additional Command Set Details

4.2.1.1.1 Internal Clock Rate – IC

This rate is used if the clock source is set to internal (CS 1). It should not be confused with “BR”, which sets the rate

of the internal bit sync, which phase locks to the externally applied data, if Clock-free is enabled. If no argument is passed, the unit reports the clock frequency. If a valid frequency is given, the internal clock

frequency is set. The frequency is in MHz. The units used to describe the internal bit rate are sometimes used interchangeably, and may cause confusion.

Megahertz (MHz) and Hertz (Hz) are cycles per second units, while Mbps (megabits per second) and bps (bits per second) are data rate units.

The internal clock is referred to as “clock,” so Hz or MHz is often used as the unit, since “clock” is a frequency.

If the clock is used to “clock” the bits at X MHz, then the throughput in bits is X Mbps. In other words, the internal

clock also sets the baseband bitrate. That is why, in this case, units of Hz are equated with units of bps. For example, 5,000,000 Hz or bps may be rewritten as 5.000 MHz or 5.000 Mbps.

4.2.1.1.2 Input Source Selection Command - IS

The IS command is used to select the clock and data source (and the user pattern and clock rate where applicable) for the transmitter with one command. This command can conceivably replace CS, DS, ID, IC, BR, BT, AIR, CF, and EN. This command is standard on all units version 2.409 or greater.

Syntax: IS [ds/?/pnxx/XXXX [cs/AUTO/rate]]

where ds is data source which can be:

ET - external TTL data (if QSX-VxT or -VR enabled) ER - external RS422 data (if QSX-VxR or -VR enabled) EL - external LVDS data (if QSX-VxL or -VR enabled) I - internal with currently selected data pattern PNxx - internal with specified PN sequence XXXX - internal with specified fixed 4 digit hex pattern AB - auxilliary input bipolar data (if -CF and -AI enabled) AT - auxilliary input TTL data (if -CF and -AI enabled) EN - Ethernet (if -EN enabled)

If ds = ET, then cs MAY be:

• Nothing (defaults to ET for an external ttl clock)

• ET for an external TTL clock

Actions: ds 0, cs 0, bt 1 (if needed), cf 1 (if needed)

• X for clock free with current BR (if -CF enabled)

Actions: ds 0, cs 0, (bt 1 if needed), cf 0

• AUTO for clock free with BR = auto

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Actions: ds 0, cs 0, cf 0, br a (bt 1, ai 0, and en 0 if needed)

• XX.xxx for clock free with BR = XX.xxx

Actions: ds 0, cs 0, cf 0, br XX.xxx (bt 1, ai 0, and en 0 if needed)

If ds = ER or EL, then cs MAY be:

• Nothing (defaults to ER for an external RS422 clock)

• ER for an external RS422 clock

• EL for an external LVDS clock

Actions: ds 0, cs 0, bt 3 (if needed), cf 1 (if needed)

• X for clock free with current BR (if -CF enabled)

Actions: ds 0, cs 0, (bt 3 if needed), cf 0

• AUTO for clock free with BR = auto

Actions: ds 0, cs 0, cf 0, br a (bt 3, ai 0, and en 0 if needed)

• XX.xxx for clock free with BR = XX.xxx

Actions: ds 0, cs 0, cf 0, br XX.xxx (bt 3, ai 0, and en 0 if needed)

If ds = I, then cs MAY be:

• Nothing (defaults to internal clock at current IC rate) (displayed)

• I for an internal clock at current IC rate (displayed)

Actions: ds 1, cs 1, ic

• XX.xxx for internal clock with ic = XX.xxx

Actions: ds 1, cs 1, ic XX.xxx

If ds = PNxx, then cs MAY be:

• Nothing (defaults to internal clock at current IC rate) (displayed)

• I for an internal clock at current IC rate (displayed)

Actions: ds 1, cs 1, id pnxx, ic

• XX.xxx for internal clock with ic = XX.xxx

Actions: ds 1, cs 1, id pnxx, ic XX.xxx

If ds = XXXX, then cs MAY be:

• Nothing (defaults to internal clock at current IC rate) (displayed)

• I for an internal clock at current IC rate (displayed)

Actions: ds 1, cs 1, id XXXX, ic

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

• XX.xxx for internal clock with ic = XX.xxx

Actions: ds 1, cs 1, id XXXX, ic XX.xxx

If ds = AB, then cs MAY be:

• Nothing (defaults to clock free at current BR) (displayed)

Actions: ds 0, cs 0, ai 1, cf 0 AIR 0 br (en 0 if needed)

• X for clock free with current BR

Actions: ds 0, cs 0, ai 1, cf 0 AIR 0 br (en 0 if needed)

• AUTO for clock free with BR = auto

Actions: ds 0, cs 0, ai 1, cf 0 AIR 0 br a (en 0 if needed)

• XX.xxx for clock free with BR = XX.xxx

Actions: ds 0, cs 0, ai 1, cf 0 AIR 0 br XX.xxx (en 0 if needed)

If ds = AT, then cs MAY be:

• Nothing (defaults to clock free at current BR) (displayed)

Actions: ds 0, cs 0, ai 1, cf 0 AIR 1 br (en 0 if needed)

• X for clock free with current BR

Actions: ds 0, cs 0, ai 1, cf 0 AIR 1 br (en 0 if needed)

• AUTO for clock free with BR = auto

Actions: ds 0, cs 0, ai 1, cf 0 AIR 1 br a (en 0 if needed)

• XX.xxx for clock free with BR = XX.xxx

Actions: ds 0, cs 0, ai 1, cf 0 AIR 1 br XX.xxx (en 0 if needed)

If ds = EN, then cs MAY be:

• Nothing (defaults to Ethernet clock at current IC rate) (displayed)

Actions: ds 0, cs 0, en 1 (cf 1 if needed) (ai 0 if needed)

• XX.xxx for ethernet clock with ic = XX.xxx

Actions: ds 0, cs 0, en 1 ic XX.xxx (cf 1 if needed) (ai 0 if needed)

Notes:

Numbers need only as many significant digits as necessary. For example, to specify 10 Mbps (for either BR or IC)

you can enter 10, 10.0, 10.000, etc.

Some command versions require the unit to have specific options and will not work without those options. For

instance, you cannot specify EN for Ethernet unless the unit has the -EN option in the part number.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

While this command incorporates the functionality of nine (9) or more commands, those commands are still usable.

For example, if the unit has the -VR option then the BT command can still be used by itself to switch between TTL and RS-422 inputs for clock and data.

Examples:

IS ET Sets unit to 'normal' mode expecting external TTL clock and data to be applied to the unit inputs

IS PN15 4.5 Sets unit to internal clock/data with a PN15 pattern at 4.5Mbps IS AT AUTO Sets unit to use the auxiliary TTL input in clock free mode with auto bit rate enabled IS EN 10 Sets unit to use the Ethernet interface for both clock and data and to set the desired bit

rate to 10 Mbps

4.2.1.1.3 Low Density Parity Check (LDPC) Command – LD

The LD command enables, disables, and shows the current state of the Forward Error Correction (FEC) / Low Density Parity Check (LDPC) encoder. There is an optional selection for the block and rate selection. This requires purchase of the LD6 option which enables LD and enables user code selection. LD6 also allows the randomizer command (RA or RN) to select CCSDS, if LDPC is enabled.

This is only valid in *PSK modes, and it automatically turns OFF differential encoding. When LDPC is disabled, the state of DE is determined by the mode (eg. all *PSK modes default to DE On.)

If the transmitter includes the LD option (but not LD6), then LD 0 or LD 1 are used to disable or enable LDPC, as shown in the example immediately following. With the LD option, the block size and code rate are always 4096 2/3.

Examples: LD Show the current encoder state LD 1 Enable the LDPC encoder LD 0 Disable the LDPC encoder If the transmitter includes the LD6 option, the user may select from the six implemented LDPC codes. This also

allows user selection of the CCSDS randomizer using the RA or RN command. Adding LD6 automatically enables the existing LD option.

LD6 Code

Block Size and Code Rate

k=4096, r=1/2

k=1024, r=1/2

k=4096, r=2/3

k=1024, r=2/3

k=4096, r=4/5

k=1024, r=4/5

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

With the LD6 option, use LD 0 or 1 to disable or enable LDPC, then use 0-5 to indicate the desired LDPC code. A space is required between the disable/enable code and the desired LDPC selection, as shown in the examples.

Examples: LD 0 Disable the LDPC encoder LD 1 2 Enable the LDPC encoder and set the block size and code rate to k=4096, r=2/3 LD 1 5 Enable the LDPC encoder and set the block size and code rate to k=1024, r=4/5

4.2.1.1.4 System Status Command – SY

The SY command is defined as follows.

Mode

CF Rate

Freq

Tmp

CRate

(b/s)

(Hz)

(C)

(b/s)

0 10001252

2255000000

27.0

19999948

Mode - Current mode number (such as 0 = PCM/FM) CF Rate - Clock free estimated data rate. This rate is based on the external data input (TTL or RS-422) even if

internal data is presently in use (CS = 1).

Freq - Tuned frequency Tmp - Current temperature CRate - Clock filter clock rate. This is the actual over the air bit rate, regardless of the selected data source, and

including any increases due to encoding (LDPC or convolutional). IN clock free automatic mode, it may differ from CF Rate because it will track the bit sync rate (exact, if locked) rather than the clock free estimated rate (approximate).

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

5 RF Output Notes

There are three methods of muting the RF output. If you do not have RF output, check these conditions:

1. RF On / Off command – From the control terminal, type RF to query the current state of the RF On / Off

variable. If it is 0, type RF 1 to turn the output back on.

2. External clock removal – If the unit is configured to use the external clock (CS = 0), that clock’s presence

is detected. If it is not present AND the unit is not running in Clock Free mode, the RF output automatically shuts OFF (unless the AC or ACS option is present, in which case the RF output switches to just a carrier at the center frequency with no modulation on loss of clock). When the data clock comes back, the RF output automatically turns on. The lag from data clock state change to RF output change is about 0.1 seconds, but varies based on settings.

If the unit IS running in Clock Free mode, no clock is required, but the loss of data transitions is detected. This will cause the RF to shut OFF (or if AC or ACS option and AC is set to 1, change to a carrier on center frequency). When the data transitions begin again (or when an external clock is reapplied if NOT in Clock Free mode), the RF output turns on again.

3. RF On / Off pin – The RF On / Off pin is a hard OFF control for the RF output. The polarity of this pin is

selectable using the RZ command. The RF On /Off pin (in the inactive state) forces RF OFF; the RF On /Off pin can only allow RF to turn on, but it cannot force it to turn on.

If RZ = 1 then a high level on the RF On / Off pin allows RF On. If RZ = 0, then a low level (ground the RF On / Off pin) allows RF On. The RZ command is described in section 4.2.1.

5.1 Troubleshooting the RF on a Quasonix Transmitter

The following is a quick, three-part test to verify that the RF output on the transmitter is working correctly. This procedure should work for most transmitters with no modifications, however the sheer number of extra options and variations means that some units will need some special instructions or may work slightly differently. Examples are auto-carrier (-AC option), clock free (-CF option) and recall-holdoff (-RH option). If the procedure below does not demonstrate the working RF output on the transmitter, please contact Quasonix technical support for further help in resolving the issue.

The three sections below demonstrate RF output functionality one step at a time: first a carrier, then a waveform based on internal clock and data, and finally the waveform using the user supplied external clock and data. Part one demonstrates a simple carrier output at the desired frequency. Part two demonstrates proper waveform modulation using internal clock and data generated by the transmitter itself. Part three switches to the user supplied external clock and data for normal operation. If the first two parts work correctly, then the only missing piece is the external clock and data, so resolving any final issues becomes easier.

Part 1: Checking for carrier power output on frequency

1. Turn on power to the transmitter.

2. Set the mode to 6 (carrier only) using command MO 6.

3. Set transmitter to the desired frequency using the FR command. For example, FR 2200.5.

• To see the allowed frequencies on your unit, type FR ?.

4. Turn the soft RF control on with RF 1.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

5. Use a Spectrum Analyzer to determine whether there is a stick at the desired frequency. If there is, go on to

Part 2.

6. If there is no output, check the state of the RF On/Off pin.

• If the pin appears to be in the correct state to enable the output, check the RF On/Off pin polarity using

the RZ command.

• If the polarity is incorrect, change it.

• RZ 1 sets the transmitter output to turn ON when the RF On/Off pin is high (3.3 VDC).

• RZ 0 sets the transmitter output to turn ON when the RF On/Off pin is low.

Is the output present now? If so, go on to Part 2 below. If not, call Quasonix for technical support.

Part 2: Verifying modulation output on frequency with internal data

1. Turn on the transmitter.

2. Set the mode to one of the available modes on your unit. For example, MO 0 for PCM/FM, MO 1 for

SOQPSK, etc.

3. Set transmitter to the desired frequency using the FR command. For example, FR 2200.5.

• To see the allowed frequencies on your unit, type FR ?.

4. Turn the soft RF control ON with RF 1.

5. Enable the internal clock source with CS 1.

6. Enable the internal data source with DS 1.

7. Set the internal clock rate to 5 Mbps with IC 5.

8. Set the internal data pattern to PN15 with ID PN15.

9. Use a spectrum analyzer to verify the desired waveform on the RF output at the desired frequency.

10. If the waveform is NOT present, check the state of the RF On/Off pin. Use the RZ command to check the

current polarity of the RF On/Off pin.

• RZ 1 sets the transmitter output to turn ON when the RF On/Off pin is high (3.3 VDC).

• RZ 0 sets the transmitter output to turn ON when the RF On/Off pin is low.

11. Change either the RF On/Off pin or the polarity to turn the RF output ON.

12. Check for the RF output on the spectrum analyzer.

• Is the output present now? If so, go on to Part 3.

• If not, call Quasonix for technical support.

Part 3: Verifying modulation output on frequency with user data

1. Turn on the transmitter.

2. Set the mode to one of the available modes on your unit. For example, MO 0 for PCM/FM, MO 1 for

SOQPSK, etc.

3. Set transmitter to the desired frequency using the FR command. For example, FR 2200.5.

• To see the allowed frequencies on your unit, type FR ?.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

4. Turn the soft RF control on using RF 1.

5. Disable the internal clock source with CS 0. This is the normal state on power up for most units.

6. Disable the internal data source with DS 0. This is the normal state on power up for most units.

7. Be sure that a clock source is connected to the correct pins of the transmitter input connector with the

correct type (TTL or RS-422) of signal and in the case of RS-422, the correct polarity.

8. Be sure that the clock source is ON and that the clock rate is within the allowed range for the mode

selected. Typically this is 100 kbps to 28 Mbps for Tier 1 and 2 waveforms and 50 kbps to 14 Mbps for Tier 0.

9. Be sure that a data source is connected to the correct pins, with the correct type (TTL or RS-422) and

polarity as above.

10. Use a spectrum analyzer to verify the desired waveform on the RF output at the desired frequency.

11. If the waveform is NOT present, check the state of the RF On/Off pin. Use the RZ command to check the

current polarity of the RF On/Off pin.

• RZ 1 sets the transmitter output to turn ON when the RF On/Off pin is high (3.3 VDC).

• RZ 0 sets the transmitter output to turn ON when the RF On/Off pin is low.

12. Change either the RF On/Off pin or the polarity to turn the RF output ON.

You may issue the RF command and observe the status which is returned. This status indicates whether the transmitter believes the RF output is actually ON or not.

The SY command may be issued to check the actual clock rate that the transmitter sees if no RF output is detected. One of the most common problems is a clock rate that is too high or too low (or missing) for the desired modulation.

Finally, if you have a full RF loop running with a BERT and are having trouble achieving a zero bit error rate or lock, try the loop using internal data with the standard PN15 bit pattern. Be sure the BERT pattern is set to match the selected data pattern (ID command) on the transmitter. Assuming the internal data syncs and produces a zero bit error rate, you can switch back to the external clock and data. In this case, you can also check (and change) the clock polarity (CP) the data polarity (DP), the randomizer (RA), and the differential encoder (DE - normally ON for SOQPSK and OFF for other waveforms) to resolve the sync and bit error rate issues.

If you are still having difficulties at this point, then contact Quasonix technical support.

Quasonix Technical Support

(1-513-942-1287) or email (support@quasonix.com)

When calling technical support, it will speed things up if you have the following information handy:

• Model number (obtained with the ZZ command) ***Note that this is different from the customer part

number.***

• Serial number (obtained with the SN command)

• Software Version (obtained with the VE command)

It is also helpful if you can call from a phone in your lab so our tech support people can actually walk you through setting, checking, and controlling your transmitter).

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

6 Performance Specifications

6.1 RF Output

The minimum RF output power is one of the following: 1 W, 2 W, 5 W, or 10 W with the RF load VSWR < 2:1 at all phase angles from 0 to 360 degrees.

6.2 Electrical Current

The electrical current drain for nanoTX™ transmitters is provided in Table 20.

Table 20: DC Input Current at Standard Input Voltage

Band Type

Wattage

Maximum

Amps

Typical Amps

@ 28 VDC

1 W

450 mA

350 mA

2 W

570 mA

480 mA

5 W

1.0 A

0.8 A

8 or 10 W

1.3 A

1.1 A

6.3 Environmental Specifications

The nanoTX™ meets the following environmental requirements.

Table 21: nanoTX™ Environmental Specifications

Environmental Specifications

Description

Operating temperature (5 W, 10 W models)

-40°C to +85°C

Non-operating temperature (all models)

-55°C to +100°C

Operating humidity

0 to 95% (non-condensing)

Altitude

Up to 100,000 ft.

6.3.1 EMI Performance

Every Quasonix transmitter is designed to operate reliably and unobtrusively in the most challenging environments. This includes electromagnetic interference and compatibility (EMI/EMC) requirements. More specifically, all

Quasonix transmitters in the nanoTX™ and nanoPuck™ family have been designed to comply with the following

requirements of MIL-STD-461G, when installed as recommended by Quasonix.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 22: nanoTX™ EMI Compatibility

Requirement

Description

CE101

Conducted Emissions, Audio Frequency Currents, Power Leads

CE102*

Conducted Emissions, Radio Frequency Potentials, Power Leads

CE106

Conducted Emissions, Antenna Port

CS101*

Conducted Susceptibility, Power Leads

CS114*

Conducted Susceptibility, Bulk Cable Injection

CS115*

Conducted Susceptibility, Bulk Cable Injection, Impulse Excitation

CS116*

Conducted Susceptibility, Damped Sinusoidal Transients, Cables and Power Leads

RE101

Radiated Emissions, Magnetic Field

RE102

Radiated Emissions, Electric Field

RS101

Radiated Susceptibility, Magnetic Field

RS103

Radiated Susceptibility, Electric Field

Quasonix transmitters have been tested for compliance with these standards approximately annually since 2004. However, such testing is only performed as part of a qualification program, and the test results are the exclusive property of the customer who paid for them. If you need EMI testing on a particular part number, please contact sales@quasonix.com for a quote.

For certain nanoTX™ or nanoPuck™ models, external filtering on the power leads may be required to meet the

requirements marked with a *.

6.4 Carrier Frequency Tuning

The carrier frequency is selectable in 0.5 MHz steps. Frequencies supported by the nanoTX™ are listed in Table 23.

Table 23: Carrier Frequencies (MHz)

Frequency

Band Code

Band

Minimum

Frequency

Maximum

Frequency

Default

Frequency

Tuning

Steps

Lower S

2200.5 MHz

2300.5 MHz

2250.5 MHz

0.5 MHz

Upper S

2300.5 MHz

2394.5 MHz

2370.5 MHz

0.5 MHz S S

2200.5 MHz

2394.5 MHz

2370.5 MHz

0.5 MHz

6.5 Carrier Frequency Error

The frequency error is less than ±20 ppm over all combinations of temperature, voltage, and aging (up to five years).

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

6.6 Bit Error Rate

The transmitter meets the following BER limits when tested with the Quasonix’ multi-mode, multi-symbol trellis demodulator.

Table 24: Transmitter BER Specifications

BER

Maximum Eb/N0 (dB)

PCM/FM, Tier 0

SOQPSK-TG, Tier I

Multi-h CPM, Tier II

10-3

7.5

9.5

11.0

10-4

9.0

11.5

12.5

10-5

10.0

13.0

13.5

10-6

11.0

14.5

6.7 Modulated RF Power Spectrum

The transmitter’s modulated spectrum complies with the IRIG-106 PSD mask:

M (dBc) = Max ( {K – 100 logf – fc+ 90 log (R)}, {-(55 + 10 log (P))} ), f – fc ≥ R/m where

M = power relative to unmodulated carrier (i.e., units of dBc) at frequency f (MHz)

f = frequency in MHz

fc = the carrier frequency in MHz

R = the bit rate in Mb/s

P = the rated power output of the UUT, in Watts

and the values of K and m are as tabulated in Table 25.

Table 25: K and m Values per Waveform

PCM/FM, Tier 0

-28

SOQPSK TG, Tier I

-61

Multi-h CPM, Tier II

-73

As noted in the equation above, the mask has a floor at –(55 + 10 log(P)) dBc, and the mask imposes no limit on the spectrum for frequency offsets less than R/m. Representative examples of the transmitted spectrum, with the appropriate mask, are shown in Figure 28, Figure 29, and Figure 30.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 28: PCM/FM (Tier 0) PSD and Mask

Figure 29: SOQPSK-TG (Tier I) PSD and Mask

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 30: Multi-h CPM (Tier II) PSD and Mask

6.8 Phase Noise Power Spectrum

TIMTER™ phase noise limits are shown in Figure 31.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 31: Phase Noise Limit Curve

6.9 Baseplate Temperature

The nanoTX™ is designed for efficient heat transfer between internal heat producing sources and the baseplate. The 1 W, 2 W, 5 W, and 10 W nanoTX™ and the 10 W nanoPuck™ models are rated for operation with baseplate

temperatures ranging from -40°C to +85 °C.

6.10 Vibration and Shock

The transmitter is designed and tested to operate normally when subjected to random vibration and shock. The shock and vibe test setup employed by Quasonix is shown in the following figures.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 32: Vibration / Shock Testing System

Figure 33: nanoTX™ Mounted for Z-axis Testing

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 34: nanoTX™ Mounted for X-axis Testing

Figure 35: nanoTX™ Mounted for Y-axis Testing

6.10.1 Vibration Testing

Each transmitter is subjected to the random vibration spectrum depicted in Figure 36 and Table 26 prior to shipment.

Figure 36: TIMTER™ Vibration Profile

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Table 26: Random Vibration Spectrum

Breakpoints

Frequency (Hz)

PSD (g2/Hz)

0.04

0.17

150

0.17

200

0.2

2000

0.2

G (RMS) = 19.6

During flight-qualification testing, the unit under test (UUT) was shaken for 30 minutes in each axis. Results are shown in Figure 37, Figure 38, and Figure 39.

Figure 37: Z-axis Vibration Spectrum

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 38: Y-axis Vibration Spectrum

Figure 39: X-axis Vibration Spectrum

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

6.10.2 Shock Testing

In addition to vibration testing, the UUT was subjected to shock pulses, as follows:

• Type: Half-sine

• Level: 60 g

• Duration: 5 milliseconds

Application: Three (3) shocks in each direction of the three (3) orthogonal axes both positive and negative, for 18 shocks total

The plots of the positive and negative pulses in each of the three axes are shown in the following figures:

Figure 40: Shock Pulse, Z-axis Positive

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 41: Shock Pulse, Z-axis Negative

Figure 42: Shock Pulse, Y-axis Positive

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 43: Shock Pulse, Y-axis Negative

Figure 44: Shock Pulse, X-axis Positive

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Figure 45: Shock Pulse, X-axis Negative

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

7 Maintenance Instructions

The nanoTX™ Telemetry Transmitter requires no regular maintenance, and there are no user-serviceable parts inside.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

8 Product Warranty

The nanoTX™ Telemetry Transmitter carries a standard parts and labor warranty of one (1) year from the date of delivery.

8.1 Quasonix Limited Warranty Statement

This Limited Warranty Statement (this “Limited Warranty”) applies to all hardware and software products and internal components of such products (the “Products”) sold by Quasonix, or its representatives, authorized resellers,

or country distributors (collectively referred to herein as “Quasonix”). EXCEPT AS EXPRESSLY SET FORTH IN THIS LIMITED WARRANTY, QUASONIX MAKES NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO ANY PRODUCTS SOLD BY IT. Quasonix expressly disclaims all warranties and conditions not stated in this limited warranty. There are no warranties which extend beyond the description on the face hereof. Capitalized terms not otherwise defined herein shall have the meaning set forth in those certain General Terms and Conditions of Sale for Standard Product, as amended from time to time.

Quasonix warrants to customer that for one (1) year from the date of shipment of the Products by Quasonix (the

“Warranty Period”), such Products purchased from Quasonix or its authorized affiliate will materially conform to

the specifications set forth in the applicable Quasonix Specifications, if any, and are free from defects in materials and workmanship under normal use during the Warranty Period. As used herein, “normal use” means the intended use of the Products for which it was designed by Quasonix.

This Limited Warranty extends only to the original purchaser of the Products and is not transferable to anyone who obtains ownership of the Products from the original purchaser.

Quasonix’s software, whether incorporated into the Products or sold separately, is warranted solely to the extent that

problems or “bugs” are found in the software and affect the functional operation of the Products. At no time shall

requests for changes in the software architecture or visual esthetics be considered a warranty item. The Products are manufactured using new materials only. Replacement parts may be new or equivalent to new.

Replacement parts are warranted to be free from defects in material or workmanship for thirty (30) days or for the remainder of the Warranty Period of the Products in which they are installed, whichever is longer.

During the Warranty Period, Quasonix will repair or replace the defective Products. All components or hardware products removed from the Products under this Limited Warranty become the property of Quasonix. All warranties are limited to the repair or replacement of the Products.

In no event shall Quasonix be liable for any special, consequential, incidental or indirect damages of any kind, including, without limitation, loss of profits, loss of data, “down-time,” loss of use or damage to other equipment, or personal injury or death, whether or not Quasonix has been advised of the possibility of such loss.

Notwithstanding anything to the contrary herein, Quasonix’s entire liability hereunder from any cause whatsoever

and regardless of the form of action shall be limited to the amount actually received by Quasonix. Quasonix shall not be liable for a breach of the warranty set forth in this Limited Warranty unless: (i) the customer

gives written notice of the defect, reasonably described, to Quasonix’s Contracts Administrator within thirty (30)

days of the time when customer discovers or ought to have discovered the defect and obtains a Return Materials

Authorizations (“RMA”) number; (ii) Quasonix is given a reasonable opportunity after receiving the notice to

examine such Products and customer (if requested to do so by Quasonix) returns such Products to Quasonix's facility in Moorpark, CA, unless otherwise approved by Quasonix; and (iii) Quasonix reasonably verifies customer's claim that the Products are defective.

Subject to the foregoing, with respect to any such Products during the Warranty Period, Quasonix shall, in its sole discretion, either: (i) repair or replace such Products (or the defective part) or (ii) credit or refund the price of such

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Products at the pro rata contract rate provided that, if Quasonix so requests, customer shall, at Quasonix's expense, return such Products to Quasonix.

The customer is responsible for all costs associated with packaging and shipping of the defective Products to

Quasonix’s facility and clearly marking or affixing the given RMA number on the shipping label. Quasonix is not

responsible for any loss or damage during shipment to Quasonix’s facility. Following repair or replacement of

covered Products, Quasonix will assume responsibility for the costs associated with the return of the material to the

customer to an address provided by the customer. Notwithstanding the foregoing, items returned to Quasonix’s

facility and found to be operational or otherwise not covered by this Limited Warranty shall be returned to the customer at the customer’s expense.

This Limited Warranty does not apply to expendable parts, such as cables, lamps, fuses, connectors, etc. This Limited Warranty does not extend to any Products which have been damaged or rendered defective (a) as a result of accident, misuse, abuse, or external causes; (b) by operation outside the usage parameters stated in the user documentation that shipped with the Products; (c) as a result of a failure to follow the instructions in the Operations & Maintenance Manual (d) by the use of parts not manufactured or sold by Quasonix; or (e) by modification or service by anyone other than (i) Quasonix, (ii) an Quasonix authorized service provider, or (iii) your own installation of end-user replaceable Quasonix or Quasonix approved parts if available for the Products in the servicing country.

THE TERMS OF THE WARRANTIES CONTAINED HEREIN DO NOT IN ANY WAY EXTEND TO ANY PRODUCT OR PART THEREOF OR SOFTWARE MATERIALS WHICH WERE NOT MANUFACTURED BY SELLER OR PREPARED BY SELLER OR ANY OF ITS AFFILIATES.

These terms and conditions constitute the complete and exclusive warranty agreement between the customer and Quasonix regarding the Products purchased. This Limited Warranty is applicable in all countries and may be enforced in any country where Quasonix or its authorized affiliates offer warranty service subject to the terms and conditions set forth in this Limited Warranty.

These terms and conditions supersede any prior agreements or representations (including representations made in Quasonix sales literature or advice given to the customer by Quasonix or an agent or employee of Quasonix) that may have been made in connection with the purchase of the Products. No change to the conditions of this Limited Warranty is valid unless it is made in writing and signed by an authorized representative of Quasonix.

8.1.1 Extended Warranties

Extended warranties or extra coverage are available upon request. Please contact Quasonix for details and pricing.

THE REMEDIES SET FORTH IN THIS LIMITED WARRANTY STATEMENT SHALL BE THE BUYER'S SOLE AND EXCLUSIVE REMEDY AND SELLER'S ENTIRE LIABILITY FOR ANY BREACH OF THE LIMITED WARRANTY SET FORTH HEREIN.

052217mbb002

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

9 Technical Support and RMA Requests

In the event of a product issue, customers should contact Quasonix via phone (1-513-942-1287) or e-mail (support@quasonix.com) to seek technical support. If the Quasonix representative determines that the product issue must be addressed at Quasonix, a returned materials authorization (RMA) number will be provided for return shipment.

Authorized return shipments must be addressed in the following manner:

Quasonix, Inc.

ATTN: Repair, RMA #

6025 Schumacher Park Drive

West Chester, OH 45069

To ensure that your shipment is processed most efficiently, please include the following information with your product return:

• Ship To – Company name, address, zip code, and internal mail-drop, if applicable

• Attention/Contact person – Name, Title, Department, Phone number, email address

• Purchase Order Number – If applicable

• RMA Number – provided by the Quasonix representative

Please note that Quasonix reserves the right to refuse shipments that arrive without RMA numbers.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

10 Appendix A – Preset Option

The preset feature operates similar to the stored presets in a car radio. The presence of this option is designated by

the characters “PS” and a number (2, 4, 8 or 16) appended to the standard model number. Transmitters with the

preset option operate as follows:

1. The potential preset selection pins are pins 4, 5, and 9 on the 15 pin Nano-D connector or pins 4, 5, 9, 16,

17, 18, and 19 on the 21 pin Nano-D connector. Of these pins, up to four may be used for presets depending on the device options. The 15 pin Nano-D (TTL) model can have 2, 4, 8 presets. The 21 pin Nano-D (RS-

422) model can have 2, 4, 8, or 16 presets. To see which pins are used for presets and which bits they represent, use the ZY command on the transmitter or refer to the documentation that came with your transmitter.

2. Left floating, (the pins are pulled up to 3.3 VDC internally), a pin represents a “0”, grounded is a “1”.

3. The 0000 state (all pins floating) provides normal operation.

4. The (up to) 15 other states (one or more pins grounded) select one of the presets.

5. Each preset stores a carrier frequency, modulation type, and various configuration values like randomizer,

data inversion, differential encoding, etc. These settings can be viewed with the LC (list configurations) command from a terminal.

6. The preset pins are read only at power up. Changing the preset pins after power-on has no effect.

7. The presets are set (in your lab) from the 0000 state, using the “PS” or "SV" command. Storing a preset is

done by configuring the device as you wish it to operate, then saving the setup to a particular preset. The save is performed by typing the following command:

SV x [name]

where x is the preset number (1-15 depending on the options) and name is an optional setup name stored

with the setup. Alternatively, issue the “PS” command with a single-digit parameter (1 thru 15). So, “PS 5”,

for example will store the current frequency and modulation setting in preset 5. “PS”, with no numeric

value after it, reports the state of all presets. The LC command displays names for all setups or, if a setup number is entered, all the settings for that particular configuration.

8. Electrical connection note: The preset pins are connected directly to the FPGA in the unit, so it is important

that the voltage on those pins never get outside the range of zero to 3.3 VDC. Voltages outside this range can cause permanent damage. Also, the internal pull-up is through a 25k Ohm resistor inside the FPGA, so it is important that the pins have a high impedance to ground (> 1 M Ohm) when the pins are floating. A true switch closure is ideal, although a transistor switch can be used as long as its “Off” impedance is sufficiently high.

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

12 Appendix B – Acronym List

Acronym

Description

AGC

Automatic Gain Control

Amplitude Modulation

AQPSK

Variant of Quadrature Phase Shift Keying

ARTM

Advanced Range Telemetry

AUQPSK

Variant of Quadrature Phase Shift Keying

BER

Bit Error Rate

BNC

Bayonet Neill-Concelman Connector (RF Connector)

BPSK

Binary Phase Shift Keying

Compact Disk

CPM

Continuous Phase Modulation

DB-9

D-subminiature 9 pin Serial Connector

Diversity Combiner

DHCP

Dynamic Host Configuration Protocol

DPM

Digital Phase Modulation

FPGA

Field Programmable Gate Array

Intermediate Frequency

Internet Protocol

kbps

Kilobits per second

KHz

Kilohertz

LCD

Liquid Crystal Display

mbps

Megabits per second

MCX

Snap on subminiature connector

MHCPM

multi-h Continuous Phase Modulation

MHz

Megahertz

(connector type) Threaded RF connector

OQPSK

Offset Quadrature Phase Shift Keying

PCMFM

Pulse Code Modulation/Frequency Modulation

Phase Modulation

nanoTXTM Telemetry Transmitter

Quasonix, Inc.

Acronym

Description

PSK

Phase Shift Keying

QPSK

Quadrature Phase Shift Keying

RDMS

Receiver DeModulator Synchronizer

Radio Frequency

RJ-45

Ethernet Connection Jack

Rack Mount

RRC

Remote RDMS Client

RS-232

Recommended Standard 232 (Serial Communications)

SAW

Sawtooth Wave

SDI

System Degradation Indication

SOQPSK

Shaped Offset Quadrature Phase Shift Keying

SOQPSK-TG

Shaped Offset Quadrature Phase Shift Keying –Telemetry Group

TRL

Tracking Loop

TTL

Transistor Transistor Logic

UDP

User Datagram Protocol

UQPSK

Unbalanced Quadrature Phase Shift Keying

USB

Universal Serial Bus

VAC

Voltage Alternating Current

VSWR

Voltage Standing Wave Ratio

WAN

Wide Area Network

Quasonix nanoTX Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Introduction

1.1 Description

1.1.1 Nomenclature

1.2 Model Number Field Codes

1.2.1 Frequency Band

1.2.2 Clock and Data Interface

1.2.3 Serial Control Interface

1.2.4 ARTM Tier 0 (PCM/FM)

1.2.5 ARTM Tier I (SOQPSK-TG)

1.2.6 ARTM Tier II (Multi-h CPM)

1.2.7 Legacy

1.2.8 Output Power

1.2.9 Packages

1.2.10 Automatic Carrier Wave Output Option - AC

1.2.11 Baud Rate Option – BRx

1.2.12 CP07 Control Protocol Option – C7

1.2.13 Convolutional Encoder Option – CE

1.2.14 Clock-free Baseband Interface Option – CF

1.2.15 Dual Power Option – DP

1.2.16 Frequency Offset Option – FO

1.2.17 GPS Notch Option – GN

1.2.18 High Bit Rate Option – HR

1.2.19 Internal Clock and Data Option – ID

1.2.20 Limited Current Option - LC

1.2.21 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD

1.2.22 Forward Error Correction / Low Density Parity Check (LDPC) Option – LD6

1.2.23 Low Bit Rate Option – LR

1.2.24 Modulation Scaling Option – MS

1.2.25 Hardware Preset Option – PS2, PS4, PS8, or PS16

1.2.26 Power Output Option – PW020

1.2.27 Spacecraft Tracking and Data Network Option – STDN

1.2.28 Variable FIFO Depth Option – VF

1.2.29 Variable Power Option – VP

1.2.30 Wide Input Voltage Range Option – WV

2 Accessories

2.1 Fan-cooled Heat Sink

2.2 Pre-wired 15 Pin Nano-D TTL Connector

2.3 Pre-wired 21 Pin Nano-D

2.4 15 Pin Nano-D Wiring Harness

2.5 21 Pin Nano-D Wiring Harness

2.6 MMCX to SMA Adapter Cable

2.7 Ruggedized Handheld Programmer

2.8 USB to Serial Converter Cable

3 Installation Instructions

3.1 Mechanical

3.1.1 01AA Package

3.1.2 01AB Package

3.1.3 01PE Package

3.1.4 01PD Package

3.2 Thermal

3.3 Electrical

3.3.1 TTL Clock and Data Baseband

3.3.1.1 Pin Information

3.3.2 Signal Timing

4 Operating Instructions

4.1 Power-on Operation

4.2 nanoTX™ Serial Control Protocol

4.2.1 Command Set: Standard and Optional Commands

4.2.1.1 Additional Command Set Details

4.2.1.1.1 Internal Clock Rate – IC

4.2.1.1.2 Input Source Selection Command - IS

4.2.1.1.3 Low Density Parity Check (LDPC) Command – LD

4.2.1.1.4 System Status Command – SY

5 RF Output Notes

5.1 Troubleshooting the RF on a Quasonix Transmitter

6 Performance Specifications

6.1 RF Output

6.2 Electrical Current

6.3 Environmental Specifications

6.3.1 EMI Performance

6.4 Carrier Frequency Tuning

6.5 Carrier Frequency Error

6.6 Bit Error Rate

6.7 Modulated RF Power Spectrum

6.8 Phase Noise Power Spectrum

6.9 Baseplate Temperature