Quasonix RDMS Quick start guide

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Technical Guide
RDMS™ Access via Telnet
and
Serial Control Protocol
Quasonix, Inc.
6025 Schumacher Park Dr.
West Chester, OH 45069
27 May 2022
*** Revision 1.0.4***
**Note: Access to this serial control interface is provided primarily for debugging
purposes. Unlike the standard browser interface, the serial control interface
within the Telnet screen is not safeguarded from accidental or improper changes
to the receiver’s configuration.
It is strongly recommended that users contact Quasonix Technical Support
(Tel: [phone] or [email protected]) prior to using the Terminal serial
control interface.
Specifications subject to change without notice.
All Quasonix receiver products are under U.S. Department of Commerce jurisdiction categorized as
5A991; not covered by ITAR

Technical Guide: RDMS™Telnet and Serial Control
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Quasonix, Inc.
Table of Contents
1Access via Telnet................................................................................................................................... 4
2RDMS™ Serial Control Protocol............................................................................................................ 8
2.1 Tier 0 (PCM/FM), Tier I (SOQPSK-TG), Tier II (Multi-h CPM) and PSK Commands ................. 9
2.1.1 Additional Command Set Details...........................................................................................14
2.1.1.1 Commands Used with AQPSK or AUQPSK Modes ......................................................... 14
2.1.1.2 Antenna Control Unit - ACU.............................................................................................. 15
2.1.1.3 Adaptive Equalizer Control - AEQ..................................................................................... 17
2.1.1.4 Automatic Frequency Control - AFC ................................................................................. 19
2.1.1.5 Automatic Gain Control - AGC.......................................................................................... 21
2.1.1.5.1 Automatic Gain Control Bulk Attenuation - AGC BA ............................................... 22
2.1.1.5.2 Automatic Gain Control Data Settings - AGC DATA ............................................... 23
2.1.1.5.3 Automatic Gain Control Mode - AGC M .................................................................. 23
2.1.1.5.4 Automatic Gain Control Loop Parameter - AGC L .................................................. 24
2.1.1.5.5 Automatic Gain Control Attenuator Look Up Table - AGC LUT .............................. 24
2.1.1.5.6 Automatic Gain Control Auto Zero - AGC AZ.......................................................... 25
2.1.1.5.7 Automatic Gain Control Zero - AGC Z..................................................................... 25
2.1.1.6 High Speed Output Mixer Settings - AHM ........................................................................ 26
2.1.1.7 High/Low Speed Outputs .................................................................................................. 27
2.1.1.7.1 Analog High Speed Output - AHO...........................................................................27
2.1.1.7.2 Analog Low Speed Output - ALO ............................................................................29
2.1.1.7.3 Digital High Speed Input –DHI................................................................................32
2.1.1.7.4 High Speed Digital Output - DHO............................................................................32
2.1.1.7.5 Low Speed Digital Input –DLI ................................................................................. 34
2.1.1.7.6 Low Speed Digital Output –DLO ............................................................................ 35
2.1.1.8 Low Speed Mixer Control - ALM ....................................................................................... 37
2.1.1.9 Lock Status Command - AL .............................................................................................. 37
2.1.1.10 Best Channel Selector –BCS ......................................................................................38
2.1.1.11 Bit Rate - BR................................................................................................................. 38
2.1.1.12 Combiner Control –CMB..............................................................................................39
2.1.1.13 Clock Polarity - CP........................................................................................................ 41
2.1.1.14 Downconverting Antenna - DA .....................................................................................41
2.1.1.15 Differential Decoding - DD............................................................................................ 42
2.1.1.16 Digital Output Muting - DOM......................................................................................... 42
2.1.1.17 Data Polarity - DP ......................................................................................................... 43

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2.1.1.18 Data Quality Encapsulation –DQ................................................................................. 43
2.1.1.19 Derandomizer State - DR ............................................................................................. 45
2.1.1.20 Digital Status Output - DSO.......................................................................................... 45
2.1.1.21 Forward Error Correction - FEC ...................................................................................47
2.1.1.21.1 FEC Settings for BPSK..........................................................................................47
2.1.1.21.2 FEC Settings for AQPSK....................................................................................... 47
2.1.1.21.3 FEC Settings for DPM ........................................................................................... 48
2.1.1.21.4 FEC Settings for SOQPSK/LDPC .........................................................................49
2.1.1.21.5 FEC Settings for STC/LDPC .................................................................................49
2.1.1.22 Force Lock Indication - FL ............................................................................................ 50
2.1.1.23 FM Demodulator Settings - FM .................................................................................... 50
2.1.1.23.1 FM Video Bandwidth Control - FM B .....................................................................51
2.1.1.24 Frequency - FR............................................................................................................. 51
2.1.1.25 Help Command –H ...................................................................................................... 52
2.1.1.26 Advanced Help Command - HA ................................................................................... 52
2.1.1.27 HyperTrack –HT .......................................................................................................... 53
2.1.1.28 IF Filter Control - IF....................................................................................................... 54
2.1.1.29 Low Density Parity Check –LDPC ............................................................................... 55
2.1.1.30 Modulation Index - MI ................................................................................................... 56
2.1.1.31 Modulation - MO ........................................................................................................... 57
2.1.1.32 Output Clock Measurement - OCM .............................................................................. 58
2.1.1.33 PCM Decoding - PDC................................................................................................... 58
2.1.1.34 PCM Deframing - PDF.................................................................................................. 59
2.1.1.35 Receiver Channel Parameters .....................................................................................61
2.1.1.35.1 Parameters Erase - PER ....................................................................................... 61
2.1.1.35.2 All Parameters Erase - PERA................................................................................ 61
2.1.1.35.3 Parameter Load - PLD........................................................................................... 61
2.1.1.35.4 Parameter Reset - PRS......................................................................................... 62
2.1.1.35.5 Parameters Save - PSV ........................................................................................62
2.1.1.35.6 RF Path Attenuation –RFA ...................................................................................62
2.1.1.35.7 Reset to Factory Defaults - RFD ........................................................................... 62
2.1.1.36 Power Level - PL ..........................................................................................................62
2.1.1.37 Phase Noise Compensation - PNC .............................................................................. 64
2.1.1.38 Query Temperature - QT ..............................................................................................64
2.1.1.39 Signal Degradation Information - SDI........................................................................... 64

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Quasonix, Inc.
2.1.1.40 Spectrum Inversion - SI ................................................................................................ 67
2.1.1.41 Show Serial Number - SN............................................................................................. 67
2.1.1.42 Save Parameters - SV .................................................................................................. 67
2.1.1.43 Sync Detect –SYNC .................................................................................................... 67
2.1.1.44 System Status Tracking - SYS ..................................................................................... 69
2.1.1.45 Tape Out –TO.............................................................................................................. 71
2.1.1.46 Time of Day - TOD........................................................................................................ 72
2.1.1.47 Show Options - UP ....................................................................................................... 73
2.1.1.48 Version - VE.................................................................................................................. 74
List of Figures
Figure 1: Telnet Into Terminal ....................................................................................................................... 4
Figure 2: Channel Subscribed ...................................................................................................................... 4
Figure 3: Connected to Channel 2 in PCM/FM Mode ................................................................................... 5
Figure 4: Channel Subscribed-Method 2 ...................................................................................................... 5
Figure 5: RDMSIII Telnet Command Menu................................................................................................... 5
Figure 6: RDMSIII Telnet Command Menu-Unsubscribe All Channels ........................................................ 6
Figure 7: RDMSIII Telnet Command Menu-Subscribe to a Specific Channel .............................................. 7
Figure 8: RDMS™ Welcome Message Example .......................................................................................... 8
List of Tables
Table 1: Standard and Optional User Commands ...................................................................................... 10

Technical Guide: RDMS Telnet and Serial Control
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Quasonix, Inc.
1 Access via Telnet
Telnet provides access to the individual receiver channel’s underlying serial control interface. The serial control
interface is not recommended for typical RDMS usage. The Telnet interface should only be accessed by advanced
users. Contact Quasonix customer support before using these options.
Note: Access to this serial control interface is provided primarily for debugging purposes. Unlike the
standard browser interface, the serial control interface within the Telnet screen is not safeguarded from
accidental or improper changes to the receiver’s configuration.
It is strongly recommended that users contact Quasonix Technical Support (Tel: [phone]) prior to using
the Terminal serial control interface.
1. In a command window, type: telnet open {IP address of the receiver to connect to} 8888.
2. Press the Enter key on the keyboard.
Figure 1: Telnet Into Terminal
The next screen (Figure 2) shows the RDMS channel subscribed to by Telnet.
Method 1-Use the Subscribed Channel
3. At this point, the user may ignore the instructions on the screen and press the Enter key again.
Figure 2: Channel Subscribed
The command prompt for the mode in the subscribed channel displays immediately, as shown in Figure 3. This is a
portal to the receiver’s serial control interface and allows the user to communicate to the individual receiver “brick”
using its basic command protocol.

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Quasonix, Inc.
Figure 3: Connected to Channel 2 in PCM/FM Mode
Method 2-Unsubscribe and use a different channel
Look at the second Telnet screen again (Figure 4).
4. Follow the on-screen instruction and press the ` key. This is the very first key on the left side of the
keyboard under the tilde (~).
Figure 4: Channel Subscribed-Method 2
5. The RDMSIII Telnet Command Menu is shown in Figure 5.
Figure 5: RDMSIII Telnet Command Menu

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Quasonix, Inc.
The command menu is used to unsubscribe from connections and reconnect to a specific channel. Figure 6 shows all
connections being unsubscribed.
Figure 6: RDMSIII Telnet Command Menu-Unsubscribe All Channels
In Figure 7, the user typed a 1 to subscribe (connect) to channel 1. At this point, the user may press the Enter key to
continue, as described in Method 1.

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Quasonix, Inc.
Figure 7: RDMSIII Telnet Command Menu-Subscribe to a Specific Channel
All Quasonix serial commands are 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.
All commands generate a response of one or more lines. The length of the response depends on the verbosity level.
The last response line is always the currently selected mode (PCMFM, SOQPSK, CPM, or PSK), followed by the
character “+” or “>”, depending on the version of the firmware. This prompt signifies that the RDMS™ is ready to
accept new characters.
A complete list of available serial commands can be found in section 2 or by typing HA.

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Quasonix, Inc.
2 RDMS™Serial Control Protocol
The RDMS is controlled via a simple three-wire serial interface (transmit, receive, and ground). Configure your
controller’s serial port to the following settings:
•Baud rate of 115,200
•8 bits
•No parity
•1 stop bit
For setup and configuration via a standard Windows-based PC, Quasonix recommends the application called
Terminal, a flexible, full-featured control interface that is included in the RDMS Product CD. Otherwise, one can
use other terminal emulators, such as PuTTY or TeraTerm.
When power is applied to the receiver, a welcome message, shown in Figure 5, displays. After the welcome
message, the mode status displays (in this example, PCM/FM). This varies depending on the modes and versions
loaded into the RDMS. Additional status information about RDMS initialization displays last. This also varies
depending on RDMS settings and options.
Quasonix, Inc
6025 Schumacher Park Dr
West Chester, OH 45069
[phone]
www.quasonix.com
CAGE CODE: 3CJA9
IRIG-106 Release 07
PCMFM App Rev: 1.0.10.166 Dec 3 2015 09:42:16
PCMFM FPGA Rev: 0000102E Nov 12 2015 02:34:51
AGC tables loaded
RF attenuator calibration loaded
IF attenuator calibration loaded
Gain calibration data loaded
RF filter tune data loaded
Synthesizer data loaded
Saved parameters DEFAULTED
Warm start>
Figure 8: RDMS™ Welcome Message Example
The base command syntax is “a command followed by zero or more command parameters.”If the command is
issued with arguments, there must be a space after the alphabetic characters. The commands are not case sensitive.
All commands generate a response of one or more lines. The length of the response depends on the verbosity level.
The last response line is always the currently selected mode (PCM/FM, SOQPSK, CPM, or PSK), followed by the
character “+” or “>”, depending on the version of the firmware. This prompt signifies that the RDMS is ready to
accept new characters.

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Quasonix, Inc.
2.1 Tier 0 (PCM/FM), Tier I (SOQPSK-TG), Tier II (Multi-h CPM) and PSK
Commands
The following table describes all receiver user commands. Listed are the command code, name, description of the
command, whether specific options must be ordered or the command is standard on all receivers, basic or advanced
command, and whether the command is restricted to specific waveform modes.
Multiple commands may be typed on a command line if they are separated by a semicolon “;”. There is a limit of
256 characters per command line, including semicolons. Commands with no parameters request status only.
Refer to command HA in section 2.1.1.25 for specific help in reading the command sets.
Refer to section 2.1.1 for additional command set detail and examples. This information is also available in the
command Help.
For example:
PCM/FM>FR 2200.5; BR 6.000; AGC
results in the following:
Frequency set to 2200.5 MHz
Bit Rate set to 6.000 Mbps
and status for all AGC parameters are displayed as:
AGC control enabled
AGC control mode RF
AGC automatic mode select enabled
AGC zero mode Auto
AGC zeroed at -110.22 dBm (13.38 dB attenuation)
AGC auto zero hold threshold 0.000 dB
AGC auto zero time constant 0.250 seconds
AGC loop total power 13.375 dB
Bulk attenuator AGC control enabled, switched out
Ctrl Y repeats the command sequence without having to retype the commands.