Improved Data Modem (IDM)

Designed to "communicate with anything," the IDM interfaces to existing voice radios in military aircraft, manpacks, and mobile ground stations to transmit and receive digital data. Developed as a joint effort between Aeronix and Symetrics, the IDM supports a wide range of protocols and are offered in a variety of form factors for easy integration into systems with limitations on space, power and cooling.

KEY FEATURES - PDF Product Datasheet

  • Offered in multiple form factors
  • Supports multiple over-the-air waveform protocols, including TACFIRE, AFAPD, and 188-220/VMF.
  • Easy integration into systems space, power, and cooling limitations
  • Supports multiple host interfaces, including serial, MIL-STD-1553
  • Supports multiple channels
  • Handles both analog and digital radio interfaces
  • Supports KY-58, K-100, and other cryptographic equipment
  • Provides protocol configurability
  • Software solution portable to other platforms, including JTRS and SCA-compliant systems


  • Mobile and fixed ground stations
  • UAVs
  • Manned aircraft
  • Manpacks

IDM OVERVIEW The IDM supports multiple channels (radio interfaces); only one IDM is required to provide the data link capability to multiple radios. It maintains a "radio database" that provides the flexibility to handle all types of analog and digital radio interfaces. IDM also supports cryptographic equipment such as KY-58 and KY-100s. The Improved Data Modem (IDM) 501/IDM Junior™, VPIDM, and Mini IDM suite of Tactical Data Link (TDL) products are being integrated and deployed to support a variety of military applications worldwide. SPECIFICATIONS IDM 501 (IDM Junior™)

  • Operating Range: -40°C to 71°C
  • Dimensions: 7.42 x 3.59 x 8.82 in
  • Weight: 8.5 lb (3.8 kg)
  • Power: 13 Watts at 28 VDC
  • Reliability: 5000 Hours MTBF
  • Radio Interfaces: 4 Primary Channels[1]
  • Expandability: Spare Slot, PRISM Imagery Card Can Be Added


  • Operating Range: -40°C to 71°C
  • Dimensions: 9.18 x 6.29 x 0.6 in
  • Weight: 1 lb (0.45 kg)
  • Power: 7 Watts (5VDC, -5 VDC, 12 VDC, -12 VDC)
  • Reliability: 5000 Hours MTBF
  • Radio Interfaces
    • 2 Primary Channels[1]
    • 2 Expansion Channels
    • Expandability Via Mezzanine Card
    • Can expand up to 4 Radio Interfaces


  • Operating Range: -40°C to 71°C
  • Dimensions: 4.25 x 4.25 x 1.85 in
  • Weight: 1 lb (0.45 kg)
  • Power: 4.2 Watts @ 28 VDC
  • Reliability: 5000 Hours MTBF
  • Radio Interfaces: 1-2 Channels[1]
  • Expandability: Optional RS-170, PRISM Imagery Card Can Be Added

[1]Can be configured for either Analog (ASK FSK) or Digital (NRZ, ASK, Synchronous or Asynchronous) Interface

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