Introduction to the HF Preselector-CAT 2020 by Nigel Coleman, G7CNF

HF Preselector-CAT 2020_CAT&Calibration by Nigel Coleman, G7CNF

   

HF Preselector-CAT 2020_Tracking feature by Nigel Coleman, G7CNF

HF Preselector-CAT 2020_Broadcast Stop Band by Nigel Coleman, G7CNF

   

Introducing the VLF LF MF bands Up-Converter

Hi-Power 10kHz - 150MHz LF-HF-VHF Antenna Galvanic Isolator.

Reception Effectiveness