Horizontally Polarised Omni-Directional Antenna
OMNI-A0100
This omni-directional antenna is designed for monitoring of horizontally polarised RF signals in the frequency range 500 to 3000 MHz. The band is covered by 2 antenna arrays, mounted under a single compact radome. They each consist of 8 dipoles, combined in phase around the mast. A generous central cavity allows several large cables to be passed through the antenna, for feeding other bands or DF antennas higher up the stack. The substantial mast and flanges allow heavy antennas to be mounted above the omni. This antenna is part of the SYST-A0004 stack providing interferometric DF, vertical and horizontal polarisation monitoring in the range 20 to 3000 MHz.
Additional information
Product Data sheet
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Specifications
| Frequency range | Band A: 500 - 1000 MHz Band B: 1000 - 3000 MHz |
| VSWR | < 2.5:1 |
| Feed power handling | 0.25 W |
| Nominal input impedance | 50 O |
| Connector | 2 x N-type female Supplied with N-M cables |
| Gain | See graph |
| Gain variation over azimuth | < 3 dB RMS |
| Polarisation | Linear: horizontal |
| Dimensions (ϕ x h) | 370 mm x 800 mm |
| Weight | 20 kg |
| Mounting method | 8 x M12 bolts in flanges |
| Wind survival | 160 km/h as part of SYST-A0004 |
| Temperature (operational) | -30 °C to +70 °C |
| Relative humidity (operational) | < 95% |
| Salt / fog | Yes |
Product Applications
Signals Intelligence
- Wideband horizontal omni Smooth radiation patterns Hollow centre core allows cables to pass through the antenna Heavy aluminium tube to support further antennas above this omni
