Antenna Analyser with Noise source and Airspy
A low cost antenna analyser form 10khz - 1900mhz with an AirSpy, Noise Source and a SWR bridge.
Airspy = Euro 100,00
Noise Source = Euro 12,00 (E-Bay)
SWR Bridge = Euro 15,00 (E-Bay)
Dummy load = Euro 7,50
SMA cables 3x = Euro 4,50
Total = Euro 139,00
Antennuators 10dB, 20 dB
See the results of my 3 Band base antenna
50Mhz, 145Mhz, 435Mhz. The dips are the resonation points = 45Mhz, 50Mhz, 145Mhz, 430Mhz.
Test with a mobile antenna 145Mhz, 435Mhz. Result = 145Mhz and 430Mhz.