I purchased the sub-Rx for entirely different application: dual-polarity diversity eme reception using adaptive SDR sw (Linrad): http://www.kl7uw.com/LINRAD.htm I originally bought two filters for the sub-Rx: 2.8 and 13-KHz thinking the 13-KHz filter would permit me to run wideband audio to a soundcard for JT-65 or Spectran waterfall displays. But then I learned the K3 audio output is filtered to about 4-KHz voiding this approach. Thus, I sold my second 13-KHz filter.
I currently have just one 2.8-KHz filter in the sub-Rx which is adequate since DSP filtering can reduce this as needed. I should state I do not do HF contesting or DX chasing so need for a good CW filter in the sub-Rx is not required. I have 13-KHz, 2.8-KHz, and 400-Hz filters in the main-Rx. I do have two LP-Pan for connection to both main-RX and sub-Rx IF outputs in order to provide audio IQ signals to my computer via a four port M-Audio Delta44 soundcard. This is how I implement my dual-pol reception system for 2m-eme and accomplish 96-KHz bandspan bandwidth (limit of Delta44 soundcard). For simple bandspan reception I use the LP-Pan and emu-0202 at up to 192-KHz bandwidth on the main-Rx. 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep [email protected] "Kits made by KL7UW" http://www.kl7uw.com/kits.htm ====================================== ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
