Hi John, I just downloaded SVN 807X and I'm seeing my noise floor increase by at least 10 db when I activate the BCI Rejection. BCI interference increases the same amount. I'm using the Delta 44 soundcard.
Maybe something I need to change in my settings? I will tell you that my antenna performs poorly on 160 meters, my typical daytime noise floor is 120 dbm. But I do get weak but readable BCB carriers all over the band. Regards, Gerald Sharp, KD0GS [EMAIL PROTECTED] wrote: > svn://206.216.146.154/svn/repos_sdr_windows/PowerSDR/branches/k2ox/PowerSDR/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/attachments/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/
