I seem to have an elusive audio feedback problem. It is not always there but when it's there it's bad enough to render me unintelligible on voice Tx. I am posting this because maybe someone has seen this before and can enlighten me.
I am operating with the LP-Pan and am using Power SDR for software. I am using the E-Mu (I think 0202) sound card. My computer is an older Lenovo T60P laptop loaded with Windows 7. For PSK I bought a second sound card, some kind of a hockey puck style USB card that was recommended from this list. I got the second card because I was not able to see how the LP-Pan allows for transmit of PSK from the computer. I use HRD and DM780 for PSK. The feedback is intermittent. Sometimes it is there, sometimes not. I have tried silencing the K3 speakers, reducing MON to 0 and using headphones, still it happens. Turning off the computer eliminates the feedback. Sometimes unplugging one of the sound cards eliminates the feedback. I also tried silencing the computer microphone, presuming that the microphone was picking up audio from the spoken Tx and feeding it back somehow through one of the sound cards. Anyone ever encounter something like this before? I suspect it is something obvious that needs to be set in the computer. ______________________________________________________________ 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
