Andy, There should be no detectable difference between an AFSK and FSK signal on the receiving end. Are you sure your tones were correct on FSK? The symptom you describe sounds like you may have been transmitting "reversed tones". There is a menu setting to flip the polarity of the FSK keying in the Kenwood. Give this a try. I have heard several stations that were "upside down" during this contest.
73 de Bob - KØRC in MN ----- Original Message ----- From: Andrew O'Brien To: digitalradio@yahoogroups.com Cc: [EMAIL PROTECTED] Sent: Saturday, March 17, 2007 10:25 PM Subject: [digitalradio] FSK versus AFSK in BARTG ?????? After several years of doing RTTY via AFSK, I thought I would use the BARTG RTTY contest this weekend to practice my FSK "skills" with the new radio. I was surprised that I was not being heard so well. I know the band is fairly poor but stations that I could hear fairly well would not respond to me, they often called CQ CQ after I called them. My antenna situation is not the best but I am used to being heard after a few tries. I did work some stations but much less than I am used to, I tried 40, 80 and 20M. Tonight, I tried again...just trying a few east coast stations, none were running pile-ups. Same result. many endlessly calling CQ and apparently not hearing my 100 watts of FSK. So, I switched to sound card AFSK and gave a call, first attempt the station came back to me. Another station then answered me on the second attempt. I switched back to FSK on the same band and antenna and very few responded. I'm new to FSK operations, is there something fundamental that I am missing? I am making sure I am transmitting on the same freq as I am receiving. I have made sure I have high tone selected properly. I set FSK for 100 watts with moderate amount of ALC showing. I set AFSK for 70 watts and NO ALC. It may still be just band conditions but I am wondering... -- Andy K3UK Skype Me : callto://andyobrien73 www.obriensweb.com
