H-105 Fixed Satcom Antenna
The H-105 Fixed SATCOM Antenna is a high-performance UHF helical antenna operating across the 300–520 MHz frequency range. It is designed to support next-generation Mobile User Objective System (MUOS) satellite communications for fixed, mission-critical military and government installations.
Description
The H-105 Fixed SATCOM Antenna is engineered for high-performance UHF satellite communications in demanding military and government environments. Operating within the 300–520 MHz UHF frequency band, it provides wideband coverage supporting the uplink (300–320 MHz) and downlink (360–380 MHz) frequencies used by the Mobile User Objective System (MUOS).
Its helical design and right-hand circular polarization (RHCP) enhance signal efficiency, reduce multipath interference, and help maintain stable satellite links in challenging operational conditions. Designed for fixed-site installations, the H-105 delivers consistent, long-term connectivity for secure and mission-critical communications.
Built with rugged, mission-ready construction, the H-105 is capable of withstanding extreme environmental conditions while maintaining reliable RF performance. It is a proven solution for modern UHF SATCOM networks transitioning to or operating exclusively on MUOS-based systems.
| General Specifications | |
|---|---|
| Model Name | H-105 |
| Part Number | 6999805 |
| Antenna Type | Helical Antenna |
| Radiation Pattern | Directional |
| Colour | Battleship Grey, Semi Gloss finish (RAL 7046) |
| Compliances | RoHS, REACH |
| Markets | Military & Defence, Satellite Communications |
| Electrical Specifications | |
| Frequency (MHz) | 300-520 |
| Frequency Band | UHF |
| Gain - (dBic) | 13.5 @ 520 MHz |
| Polarization | RHCP |
| VSWR (Max) | 1.5:1 |
| Impedance (Ω) | 50 |
| Max Input Power (W) | 500 |
| HPBW (°) | 37 @ 420 MHz |
| Mechanical Specifications | |
| Length - in (mm) | 97 (2464) |
| Weight - lbs (kg) | 33 (15.0) |
| Ground Plane Diameter - in (mm) | 35 (889) |
| Connector Type | N-Type (Female) |
| Number of Connectors | 1 |
| Environmental & Structural Specifications | |
| Operating Temperature - °F (°C) | -40 to 158 (-40 to 70) |
| Wind Loading Area - ft² (m²) | 1.8 (.16) |
| Wind Loading Area with ½" Ice - ft² (m²) | 4 (.37) |
| Wind Load ft-lbs | 199 |
| Wind Load ft-lbs with ½" Ice | 129 |
| Survival Rating No Ice - mph (kph) | 150 (241) |
| Mounting Specifications | |
| Mount Type | HM-5 Mount, Dual Pedestal Mount, AM-1 Mount |
