Ed's message is another confirmation on why it would be really great if Elecraft would modify the K3 software so the MENU would allow us to select separate AGC settings for: CW, SSB, and RTTY. I realize this may be a first, but Elecraft is good at leading the pack! 73, Dick- K9OM In a message dated 3/8/2017 3:54:47 P.M. Eastern Standard Time, [email protected] writes:
Below is a thread from 7 March 2016 about AGC usage with RTTY decoders. David Wicks, G3YYD, is the author of 2Tone and Kok Chen, W7AY, is the author of CocoaModem. Anecdotally, my experience after 250,000+ RTTY QSOs over the past 15 years concurs that minimizing AGC action supports best decoder performance. If my ears, or widely varying signal levels, can't tolerate AGC Off, then I use AGC Slow, SLP=0 and THR=14 or higher. Note also the comments about receiver IF bandwidth of 500 Hz except in extreme cases. Even in big RTTY pileups such as I encounter sometimes in DX locations, Again, I've anecdotally found that 500 Hz decodes better most of the time. I seldom go lower. This also implies turning off the K3 Dual-Tone filter. Both of these points (no, or minimal, AGC and moderate IF BW) are not intuitive, especially for an experienced CW operator. Ed W0YK ______________________________________________________________ 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 Message delivered to [email protected]
