> Could this be a "dry contact" relay problem, where the contacts aren't > gold plated for dry-switching, and there isn't enough current through > the relay contacts to clean the oxide layer?
I don't think that's what's happening. We seem to have been two different problems reported in this thread. The first was that after transmitting, the RX sensitivity was dropped way down. The second was that sporadically the RX sensitivity would take a dump and then quickly recover. It was my thought that perhaps a bad relay was causing the first problem, but likely not the second one. I too, have seen the sporadic drop in RX sensitivity. I am pretty sure it is a software problem. This afternoon while running PSDR 1.18.6, I was trying to setup a PSK program. As soon as the PSK program was running, I began see sporadic dropouts at intervals ranging from 5 seconds to two minutes. This only happened when the PSK program was running. I tested both WinPSKse 2.23 and WinWarbler. Both cause the same dropouts. Turning VAC on or off makes no difference. While the dropouts were happening, I watched the latency - no change. The same with CPU time - no change. Network usage - no chance. BUT when the dropout happens, the entire computer momentarily freezes - screen update, mouse, audio, everything just stops. Interesting. 73, Ralph W5JGV - WD2XSH/7 _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
