Sounds like audio overdrive to me. See <http://kc.flexradio.com/KnowledgebaseArticle50363.aspx?Keywords=Flex-3000+SSB>
For adjusting your RF output for best IMD on PSK. I suspect that's where your real problem is.
73, Rich - W3ZJ TM wrote:
Sorry to QRM the group with my emails on this problem. Think I stumbled on the issue - seems the PSDR Transmit Filter was set to high=3100, low=200. I changed it to 2100 and 200 and again have a clean signal. Really not sure what it was before the problem occurred, so would still appreciate hearing from the experts as to whether I need to redo something in the master PSDR database or something. 73, Tom K1FR -----Original Message----- From: FlexRadio [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of TM Sent: Sunday, October 21, 2012 9:20 AM To: flexradio@flex-radio.biz Subject: [Flexradio] Weird BPSK31 Behavior I am suddenly experiencing a new problem with my Flex 3000 on PSK. Everything has been nominal until this morning. Now, instead of a nice clean transmit signal on the screen, I have what appear to be two main spikes. One is the intended frequency and normal strength. The second is considerably lower in strength (40 or more db) and shifted about 1 KHz up in frequency. The only things that changed are: 1. An unexpected and unexplained Windows shutdown and restart (Win 7 64 pro on a late model i7 machine). I know PSDR is not supposed to be shut down in that manner and wonder if something fouled up there? 2. Last night I installed and used SDR Memory. That seemed to work fine. Appreciate any help/inputs. 73, Tom K1FR _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
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