Automatic+Direction+Finder+-+Testing

Jee Hyuck Park

=**ADF(Automatic Direction Finder)Testing**=



Medium frequncy band of 190KHz to 1750Khz
 * 1) ===**ADF frequencies**===

a. No Box available
 * 2. ADF Ramp Test**

b. At the airport tune local NBD

c. If stronger signal is require then use local radio station.

a. Sensitivity audio at 6db Signal+Noise/Noise
 * 3. ADF Bench testing**

b. Bearing threshold (accurate bearing at 70microV/m)

c. Bearing accuracy -7000micro V -10K microV/m

4. ADF operation and Testing
[|Automatic Direction Finder - Testing]


 * 5. Test Equipment**

The L-280 Automatic Direction Finder Test Panel is engineered for the bench testing of ADF receivers, both panel-mounted and remote-mounted units. The panel has a digital meter to monitor input voltage and current, as well as several output voltage test points. The panel has a built-in speaaker for audio monitoring. The L-280 comes enclosed in its own cabinet back and can be used in standard rack mounting or stand-alone.

[]
 * References**

[]