H-085 Fixed Satcom Antenna
The H-085 Fixed SATCOM Antenna is a high-gain 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 mission-critical military and defense installations.
Description
The H-085 Fixed SATCOM Antenna is engineered for military and defense satellite communications requiring reliable performance in demanding operational environments. Operating within the 300–520 MHz UHF frequency band, it provides directional coverage with 13.2 dBi gain at 520 MHz and right-hand circular polarization (RHCP) to support stable and efficient satellite links.
Its frequency coverage includes both the uplink (300–320 MHz) and downlink (360–380 MHz) bands used by the Mobile User Objective System (MUOS), making the H-085 well suited for modern UHF SATCOM networks operating on MUOS-based systems. The antenna’s helical design and optimized RF performance help improve signal efficiency and maintain consistent connectivity in challenging conditions.
Engineered for superior durability, the H-085 is built to withstand harsh environmental conditions while delivering dependable performance for mission-critical satellite links. Its robust construction and precision design make it a reliable solution for fixed installations supporting secure military and government communications.
| General Specifications | |
|---|---|
| Model Name | H-085 |
| Part Number | 99112801 |
| 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) | 13.2 @ 520 MHz |
| Polarization | RHCP |
| VSWR (Max) | 1.5:1 |
| Impedance (Ω) | 50 |
| Max Input Power (W) | 500 |
| HPBW (°) | 40 @ 420 MHz |
| Mechanical Specifications | |
| Length - in (mm) | 84 (2134) |
| Weight - lbs (kg) | 27 (12.2) |
| 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) | 1.4 (.13) |
| Wind Loading Area with ½" Ice - ft² (m²) | 3.2 (.29) |
| Wind Load ft-lbs | 128 |
| Wind Load ft-lbs with ½" Ice | 83 |
| Survival Rating No Ice - mph (kph) | 150 (241) |
| Mounting Specifications | |
| Mount Type | HM-5 Mount, Dual Pedestal Mount, AM-1 Mount |
