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M17-27A Image

The M17-27A from General Dynamics Mission Systems is an Airborne Antenna that is designed for SATCOM-on-the-Move (SOTM) applications. It operates from 7.9 – 8.4 GHz / 13.75 – 14.50 GHz (Tx mode) and 7.25 – 7.75 GHz / 10.95 – 12.75 GHz (Rx mode). This antenna has a modular design and leverages a common gimbal with band-swappable RF payloads to enable swift frequency band changeover. It has an embedded tracking receiver for rapid satellite acquisition (independent of the modem). This antenna is designed for extended-duration airborne intelligence, surveillance, and reconnaissance (ISR) missions where beyond the line of sight (BLOS) SATCOM capabilities are mission critical.

The M17-27A has an aperture of 27 inches and ensures superior link availability and performance over a wide range of operational conditions. It includes the positioner, servo controller, tracking receiver, and complete suite of RF components. This antenna has multiple polarization options, and delivers a linear output power of more than 30 W (Ku Band) and an EIRP of better than 48.8 dBW. This antenna has a satellite acquisition time of less than 30 seconds (cold start) and 5 seconds (hot start). It uses non-proprietary interfaces for power, Ethernet/serial, and L-Band IF Tx/Rx.

The M17-27A is compliant with ARSTRAT (X), Skynet (X), and FCC ESAA requirements and is qualified for use aboard General Atomics SkyGuardian and SeaGuardian UAVs.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    General Dynamics Mission Systems
  • Description
    Airborne Antenna from 7.25 to 14.50 GHz for SATCOM-on-the-Move Applications

General Parameters

  • Application
    Mission Aircraft, Airborne intelligence, Surveillance, and Reconnaissance (ISR) missions
  • Type
    Parabolic Reflector
  • Polarization
    Circular, Linear
  • Deployment
    Airborne, Vehicle
  • Band
    Ku Band, X Band
  • Frequency
    7.25 to 14.5 GHz (X & Ku-Band)
  • Tx Frequency
    7.9 to 8.4 GHz (X-Band) & 13.75 to 14.5 GHz (Ku-Band)
  • Rx Frequency
    7.25 to 7.75 GHz (X-Band) & 10.95 to 12.75 GHz (Ku-Band)
  • Input Power
    30 to 50 W (SSPB Linear Power)
  • Beamwidth
    2.7°/2.1° (Ku-Band) & 4.0°/3.7° (X-Band)
  • Cross Polarization on Axis
    26 to 30 dB
  • Horizontal Beamwidth
    360° Continuous
  • Vertical Beamwidth
    -10 to 87 Degrees
  • Mounting
    Clamp Mount
  • Colour
  • Weight
    67 lbs
  • Diameter
    27 inches
  • Operating Temperature
    -55 to 60 Degree C
  • Note
    G/T:9 to 14 dB/K ; EIRP:48.8 to 52.6 dBW ; Satellite Acquisition Time:5 to 30 s ; Power:600 W

Technical Documents