The DF-A0300 direction finding antenna covers a frequency range of 20 MHz to 3 GHz. An integrated active monitoring antenna, working up to 6 GHz, gives a high sensitivity omni on the same axis as the DF antenna, without interference between them. The full-size elements on all bands give excellent DF sensitivity. Ultimate angular resolution for strong signals is well under 1° for most of the frequency range. Dipole elements provide good crosspolarisation rejection, and fair performance for signals arriving from up to 15° above or below the horison. The integrated monitoring antenna is in two bands, mounted above the Band C DF antenna. These are amplified at the top of the cable, and passively combined to give continuous coverage over the frequency range 20 MHz to 6 GHz, with a single output connector. This DF antenna is designed to be used with a 2-channel phase-sensitive receiver, and correlative algorithm. Characterisation of the antenna can be performed on request.
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DF frequency range | Band 1: 20 - 300 MHz; Band 2: 300 - 1000 MHz; Band 3: 1000 - 3000 MHz |
Nominal input impedance | 50 O |
Antenna type | 5-element DF interferometer optimised for 2-channel receiver |
Polarisation | Vertical |
Output cables | RG 400 cables |
DF connectors | 15 x TNC male |
Nominal H-plane beamwidth | 360° |
Nominal E-plane beamwidth | 60° |
Typical VSWR | 0 |
Polarisation | Vertical |
Connector type | N-type male |
Nominal impedance | 50 O |
Input voltage (via coax) | 13 - 24 VDC |
Input current | < 150 mA |
Power consumptio | < 2.25 W |