The HF whip monopole antenna is designed for deployment on open ground or permanent installation and includes a deployable groundplane. The antennas’ radiation pattern is suitable for medium to long range HF monitoring. The active version of this antenna uses an operational amplifier as the active component of the antenna which operates from 9 kHz to 30 MHz. The active version features a passive bypass mode which comes into operation when the antenna is powered down. In this mode, the active matching and amplification circuitry is bypassed, and the antenna operates as a completely passive receiving antenna.
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Frequency range | 9 kHz - 30 MHz |
Polarisation | Vertical |
Nominal input impedance | 50 Ω |
Connectors | N-type female |
Sensitivity in 1 Hz bandwidth | Better than 1 µV/m |
OP1 | 24 dBm |
OIP2 | 43 dBm |
OIP3 | 33 dBm |
Input voltage | 12.5 - 15.5 VDC |
DC input current (max) | Length |
Length | 4.5 m |
Total mass | 7 kg excluding packaging |
Base dimensions | 300 mm x 300 mm |
Groundplane diameter | 10000 mm |
Mounting method | Free-standing on the ground with guy ropes; Can be bolted to a concrete plinth |