The OMNI-A0111 is a complete HF monitoring antenna solution which includes a monopole antenna and a crossed-loop antenna on a supplied groundplane. The monopole antenna provides excellent reception of ground-wave signals from local transmitters and low take-off-angle sky-wave signals which are typical of long-distance paths.
The crossed-loop antenna provides excellent performance for high-angle and near vertical incidence skywave (NVIS) signals that are typical of short and intermediate-range propagation paths. The crossed loop antennas are circularly polarised for high-angle signals, reducing the susceptibility to ionospheric fading and making the antenna performance independent of the orientation of the transmitting antenna.
By combining these antennas in a single installation the OMNI-A0111 provides a complete omni-directional monitoring solution for all propagation modes and angles of incidence. Multiple OMNI-A0111 antennas can be deployed with suitable direction finding equipment to provide both azimuth direction and angle of arrival DF capabilities.
|Frequency||MHz 1 - 30|
|Polarisation||Vertical and circular|
|Mass (kg)||< 180|