VHF Band pass Filter for 144 MHz (2 meters). Thanks to the triple helix filter It is possible to attenuate FM broadcasting up to 100dB with an insertion loss of only 0,30dB. Perfect for use EME, Tropo, contest but also for use on radio bridges analog or digital or APRS.
Compact, light and small. Helical band pass filter for recevice the FM BC frequency from 88 MHz to 108MHz.
Compact, light and small. Triple helical band pass filter for recevice the 4 meter band 70MHz.