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Model RM-6300
RF Exciter & Test Signal Simulator
Wideband Integrated Multi-Mission Solution


  • Integrated Programmable Waveform Generator, Modulator, Noise Generator, Upconverter and BER Test System
  • RF Link and Range Setup, Testing and Operation
  • SatCom Science, and Military Missions
  • Supports IRIG 106 applications
  • SGLS and STDN Ground Stations
  • Mobile Tracking and Data Systems
  • Payload and Product Integration, Simulation and Testing

The RM-6300 RF Exciter & Test Signal Simulator combines a state-of-the-art high data rate digital wideband waveform modulator with a high performance radio frequency (RF) upconverter to produce transmission-ready signals in the Baseband, Upper L-, Lower L-, Range S-, Satellite Uplink S-, Satellite Downlink S-, and Range C1- (4 GHz) and Extended C2- (5 GHz) frequency bands. Alternately, C1- and C2- can be provided as P1- and P2-Bands for sites using CIF.

An advanced, digital implementation provides for the small form and fit while fully satisfying applications requiring ruggedized packaging, minimum power consumption, and high spectral purity. The design supports a multitude of complex digital formats for Satellite and ARTM Range use.

Data generation, coding, and modulation can be driven from a variety of external digital inputs or via internal pattern and waveform generation sources. Dual data processing paths are included to allow creation of independent I and Q streams.

The practical design of the RM-6300 Exciter supports link test and verification applications. A single RM-6300 can replace a BERT, waveform generator, vector modulator, upconverter, amplifier, noise source, attenuators, power meter, spectrum analyzer and a frequency converter. Combining these capabilities in one small, simple-to-use unit allows quick and accurate setup and testing without in-depth system knowledge.

An optional second, independently tunable modulated RF output may be used effectively with dual-polarized systems. Output power levels are adjustable for fine control and fade profiling.

Configuration Profiles can be stored with user-defined link names and recalled with a single command, simplifying fast and accurate configuration changes .

Configurable front panel BNC connectors provide operators with ready access to internal operating signals. The RM-6300 can also optionally support a station clock input for external frequency reference.

The RM-6300 includes support for user-configurable Doppler simulation and satellite acquisition automation functions.

The firmware-intensive implementation of the RM-6300 readily accommodates custom features and signal processing tasks. Using the latest generation digital signal processing techniques allows upgrades via firmware changes, even for previously fielded systems.

The RM-6300 RF Exciter is available in a standard 2U 19 inch rack mountable chassis.

Brochure: PDF

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Compact 2U chassis with
dynamic touch screen control

Key Features

  • Single or Dual-RF Output RF Exciter for Baseband, Lower/Upper L-Band, Range and Satelite Uplink/Downlink S-Bands and either C1-/C2- (4/5 GHz) or P1-/P2-Band for sites using CIF.
  • Extended C2 (to 5250 MHz) for US or European use
  • Integrated Solution Replaces Separate Noise Source, Upconverter, Amplifier, BERT and Hours of Calibration
  • Internal Rate and Pattern Generator including Single Error Insertion for a truly stand-alone telemetry test source
  • Programmable Frequency Sweep/Decay, Fade, Doppler
  • Programmable Noise for Eb/No and SNR measurements
  • Programmable Front Panel Ports for Setup and Monitoring
  • Dual Data Encoder with Convolutional Encoding, PCM Conversion, Scrambling, and Ranging Generation



Supported Waveforms

ARTM Tier 0 (PCM/FM) (1 Mbps to 25 Mbps)

ARTM Tier I (SOQPSK) (1 Mbps to 50 Mbps)

ARTM Tier II (ARTM CPM) (5 Mbps to 25 Mbps)



Phase Modulation (PM) - Digital or Analog (10 Hz to 25 MHz)

Frequency Modulation (FM) - Digital or Analog (50 Hz to 5 MHz)

Phase Shift Keyed (PSK)

BPSK (250 bps to 25 Mbps)

QPSK, OQPSK (500 bps to 50 Mbps)

U/AQPSK (250 bps to 25 Mbps, adjustable I/Q power ratio)

PM/PSK - Configurable subcarrier frequency

Digital PM: Mod Index 0 to 180 degrees

Analog Modes: External In, Digital Modulator In

NTSC Video: Analog input or test patterns, selectable Pre-Emphasis

Data Inputs and Outputs

12 TTL Data/Clocks: 50 bps to 20 Mbps

12 LVDS Data/Clocks: 50 bps to 50 Mbps

6 Internal Digital Pattern Generators

6 Internal Clock Generator (With Output)

Data/Clock Phase: Independently adjustable 0 to 180° in 1° steps

Impedence: 75 O, 50 O BNC Connector, Factory option 50 O

Primary / Secondary RF Output

Frequency: 200-5250 MHz

Frequency Resolution: 1 Hz

Output Level: 0 to -100 dBm or OFF, Higher Power Optional

Programmable Fade: 1 Hz to 75 kHz, 0.0 to -30.0 dB

Step Size: 0.1 dB

Modulation Options: Unmodulated CW, Digital Modulation

Spurious: >36 dBc per IRIG 106-11 (In-Band)

        <60 dBc per IRIG_106-11 (Out-of-Band)

Phase Noise: Per IRIG 106-15, CPM Limit

Programmable Sweep and Frequency Decay:

    Sweep Range: Up to ±100 MHz at 10 Hz/s

    Sweep/Decay Rate: 10 Hz to 1 MHz/sec.

Sweep Control: Up, Down, Bi-Directional, Satellite Acquire

Spectral Inversion: Auto or manual Inversion 300-1150 MHz

IRIG-B Input

Type: DCLS Unmodulated or Modulated AM (Option)

Display and Test Results


.csv file format




Coding Formats


NRZ - Mark (NRZ-M), Space (NRZ-S), Level (NRZ-L)

BIØ - Mark (BIØ-M), Space (BIØ-S), Level (BIØ-L)


Bypass, Rate 1/2, or Rate 3/4 (Punctured)

Constraint Length 7, Industry standard polynomials

G1/G2, G1/-G2, G2/G1, -G2/G1 symbol ordering

LDPC: IRIG 106-15 Appendix R and NASA common codes (Option)

STC: IRIG 106-15 Appendix S Standard with pilot bits (Option)


Bypass, Intelsat (V.36), or CCITT (V.35), RCC 106 15-bit IRIG

Additional Features

Bit-Error-Rate Testing: 6 Independent Bit Error Rate Monitors

AWGN Noise Generator: Adds Simulated AWGN to Output Waveform

    to Establish Accurate Eb/No Levels

PN Code Generators for Industry Standard Patterns

Bit-Synchronizer: Auto-baud detect to adapt shaped waveform

    and/or Modulation Indicies

Optional Tests:

Combiner Break Frequency

PCM/FM Modulation Index

Adjacent Channel Interference

Power, Frequency, and Bit Rate Stress Sweep

Receiver Filter Stress Sweep

Data Latency

Multi-Ray Multipath Simulation

AM Sinusoidal Overlay (Antenna Error Signal Simulation)

Stored Configuration Profiles

Remote Status/Control Specifications


Commands: Control Over All Configurable Parameters

Status: Lock, Self-Test, Detailed Operational Information

Web browser GUI

Other Specifications

Chassis: 19" Rack Mount, 3.5" H (2U), 22" D (Excl. Connectors)


1 Type N for Primary RF Output

1 Type N for Secondary RF Output (Option)

4 BNCs for Monitor Ports (Front Panel)

12 BNCs For Data/Clock Inputs/Outputs

1 44 PIN D for Differential Data/Clock Inputs/Output

1 BNC for IRIG-B Input

1 BNC for External Reference Input

1 BNC for Internal Reference Output

2 BNC Analog In/Out

2 RJ-45 for 10/100baseT

Standard 3 Prong Male Primary Power Input

Primary Power: 120 VAC (+/- 10%) 50-60 Hz

Temperature: -10° TO 50° C Operational, -45° TO +65° C Storage

* All specifications subject to change without notice or obligation to retrofit. Consult factory for custom options and/or alternate specifications



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