Hi All, I have a JRC NRD-345 receiver which is equal on 136 kHz & 500 kHz & a Yaesu FT-847 transceiver which is very poor on 136 kHz & good on 500 kHz. But - the 847 is superior on normal CW even on
Interesting analysis Chris! Not really got round to tabulating actual figures, and one significant factor which makes it difficult is the slow QSB on all signals, do these relate to peaks of QSB perh
Dear LF, I have just calibrated my 500 kHz DC RX using an AF-derived agc and s-meter. The agc / s-meter are driven after a narrow audio filter. I used a signal generator and a switched attenuator. At