SATCOM On-The-Move Model 17-27A Airborne Antenna
General Dynamics Mission Systems SATCOM-on-the-Move (SOTM) products share a legacy of proven, reliable performance on aircraft, ships, fast boats and a variety of military wheeled and tracked vehicles.The M17-27A was specifically designed for extended-duration airborne intelligence, surveillance, and reconnaissance (ISR) missions where beyond line of sight (BLOS) SATCOM capabilities are mission critical.
- Reliable high data rate X-band and Ku-band airborne satellite communications
- Superior link availability and performance over a wide range of operational conditions
- Designed for extended-duration airborne intelligence, surveillance, and reconnaissance (ISR) missions
- Qualified for use aboard General Atomics SkyGuardian and SeaGuardian UAVs
Military Satellite Communications On-The-Move
Our SATCOM On-the-Move® antennas provide reliable, high data rate satellite communications while on the move enabling secure, beyond-line-of-sight communications for vehicles in motion over rugged terrain.
Features
Key to the performance of any SOTM product is the ability to maintain the link during dynamic platform motion. SATCOM-on-the-Move products provide world- class “on satellite” tracking accuracy via a combination of integrated tracking receiver and high-bandwidth line-of-sight stabilization. The modular design of the terminal leverages a common gimbal with band-swappable certified RF payloads enabling frequency band changeover within 5 minutes.
- Full link performance maintained horizon-to-horizon through vehicle range of motion with elevation coverage to -10°
- Rapid SATCOM frequency changeover by swapping a single modular RF payload
- Embedded tracking receiver for rapid satellite acquisition independent of modem
- Non-proprietary interfaces for power, Ethernet/serial, and L-Band IF Tx/Rx
- Compatible with a wide range of commercially available modems
- Modular design enhances maintainability, simplifies future upgrades and minimizes life cycle cost
- Antenna includes the positioner, servo controller, tracking receiver, and the complete suite of RF components
- Compliant to ARSTRAT (X), Skynet (X) and FCC ESAA requirements (Ku-Band)
Specifications
| Radome Not Included | Ku (Qual Complete Q2 2021) |
X (Qual Completed 2020) |
|---|---|---|
| Frequency - Receive | 10.95 to 12.75 GHz | 7.25 to 7.75 GHz |
| Frequency - Transmit |
13.75 to 14.50 GHz |
7.90 to 8.40 GHz |
| Aperture Size |
27 inches |
|
| Pedestal |
2 Axis Az/El |
|
| SSPB P1dB |
≥ 30 Watts |
≥ 50 Watts |
| G/T (Worst-case, 10° El, 23°C)* |
≥ 14.0 dB/K |
≥ 9.0 dB/K |
| EIRP (Linear Across Temperature)* |
≥ 52.6 dBW |
≥ 48.8 dBW |
| Beamwidth, 3 dB, Rx/Tx Midband |
2.7°/2.1° |
4.0°/3.7° |
| Sidelobes, Tx |
FCC Compliant |
MIL-STD-188-164B CN1 (ARSTRAT) Skynet |
| Polarization |
Linear H/V or V/H (Continuous Rotation) |
Circular RH/LH Remotely Selectable |
| Transmit Cross Polarization with Tracking Accuracy |
30 dB Typ, 26 dB Min |
N/A |
| Azimuth Travel |
360° deg continuous |
|
| Elevation Travel (Full Performance) |
-10° to +83° |
|
| Elevation Travel (Total) |
-10° to +87° |
|
| Polarization Travel |
360° Continuous |
N/A |
| Tracking Performance |
FCC ESAA Compliant (Pt Error < 0.2°, > 99.9%) |
WGS / Skynet Compliant |
| Mean Time Before Failure (MTBF) |
≥ 6000 Hours per MIL-HDBK-217 Aircraft Uninhabited Cargo, 60°C, 100% duty cycle |
|
| Satellite Acquisition Time |
< 30 second cold start @ -40°C < 5 seconds hot |
|
| Environmental Compliance |
MIL-STD-810F tailored for airborne requirements MIL-STD-461F Army Aircraft External MIL-STD-704F (Tailored) Lightning Protection DO-160 Sect 22 Level 3, Waveform 5A |
|
| Shock/ Vibration |
6g, 11ms per MIL-STD-810F 4.60 g rms (Propeller aircraft) per MIL-STD-810F |
|
| Operating Temperature (Within Radome) |
-55°C to +60°C per MIL-STD-810F -40°C Cold boot (< 3 min, < 1 min typical) |
|
| Weight |
< 67 lbs |
< 64 lbs |
| L Band IF Tx/Rx Range |
950 to 1750 MHz |
950 to 1450 MHz |
| Power |
< 600 Watts Continuous |
|
