I attended the RTTY forum today at Dayton, and one of the presentations was from Larry, K8UT about a mechanism that he uses when doing S&P in RTTY Contests -- he calls it "Adaptive RX", and it's described in his program documentation for a utility that he wrote to control his Icom rig - http://www.k8ut.com/tiki-index.php?page=CI-Vfilter+Utility+Documentation#CI-Vfilter_Utility .
As I understand it, he detects VFO frequency changes, and "time on frequency" to expand/narrow the RTTY filters dynamically, so that they're wider as the frequency is changing (moving up/down the band), and when the 'dwell time' on a frequency exceeds a certain specifiable time, narrows, as it's expected that the VFO is stopped on a signal. Larry's implemented it by a 'serial filter' of the his Icom's serial stream, and something similar could be done for the K3... but that sure seems like something cool that could be built in, eventually. -Brian N9ADG ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
