“The New DXer’s Handbook” – Second Edition [ Free ] by K7UA

Here we take a look at the Q900 Version 3 Ham Transceiver which covers all ham bands from 160m up to 70cm. Q900 we introduced an ultra portable full range full mode SDR radio, Receive freque... Read more

FT-710 HF/50MHz TRANSCEIVER SDR circuit configuration that emphasizes basic performance The twin A/D converter circuit configuration, which is equipped with the high-resolution A/D converter... Read more