John, The BCI Rejection works great! I don't have BCI, but it kills all of the man made noise on 160.
-Tim ---- Integrated Technical Services www.itsco.com "Si fractum non sit, id reficere" -Unknown Roman consultant -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, January 03, 2007 4:22 PM To: flexradio@flex-radio.biz Subject: [Flexradio] 1.9.0 svn806X Available (160M BCI Rejection & WaveRecorder/Player Updates) svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR/branches/k2ox/Power SDR/tags/PowerSDR1.9.0X/bin/Release Hello All, I've updated v1.9.0 svn 806 to include the wave player/recorder and a new BCI Rejection scheme. The player is the same as the one used in v1.6.3 svn 724A with one exception. This one properly sets the TX audio level on startup. The BCI (AM Radio Broadcast Interference) Rejection is something new to the SDR. If you live near strong AM stations they may be causing front end overload. If you operate on 160 and find carriers every 10kHz and a high noise floor this is for you. My noise floor is S9 +10db with carriers at S9 +25db. With the BCI Reduction activated the noise floor drops to S6 and NO Broadcast carriers. That's more than a 35db improvement during the day. It's even better at night when the atmospheric noise goes down! I now get down to S3 at times. I worked G4UFK on 160 SSB last night. It would not have been possible without this feature. The easiest way to see if you are being 'de-sensed' is to go to 160M and click the 'BCI Reduction' button on and off. If the noise floor drops and the carriers on 1.830, 1.840, 1.850 ... disappear, that's a sure sign. The real signals will jump right out of the noise! On the other hand, if you're lucky enough to live far from strong broadcast stations you may not find a need for this feature. I'll put some pictures and explanation on my web site later. Let us know what you think. 73, John k2ox -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachment s/20070103/b5d6a8ee/attachment.html _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
