Dave, The "ghost" signal sounds like a transmitter image calibration issue. I suggest you contact Dudley on our support line (copied above) so he can assist you with the automatic calibration process. Every band has its own calibration data so it sounds like 160m is off for some reason. It takes only a few minutes to calibrate.
Gerald Gerald Youngblood, K5SDR FlexRadio Systems Ph: 512-535-4713 Fax: 512-233-5143 Email: [EMAIL PROTECTED] Web: www.flex-radio.com > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Dave Blaschke > Sent: Sunday, December 09, 2007 4:14 PM > To: [email protected] > Subject: [Flexradio] Ghost signal on xmit > > While transmitting on 160 meters with my SDR-5000, I have > been advised that a ghost signal appears approximately 1.4 > kHz higher and/or lower than my transmit frequency. This > ghost signal is down a few db from the main transmit frequency signal. > > I am thinking any image signal on transmit should be well > below the detection level outside of my QTH. Is there an > adjustment needed somewhere in software to correct this? Is > there anyone else besides N5BLZ and myself who has > experienced this situation? > > I don't want to be totally negative, so I must say the > SDR-5000 receiver performs superbly, causing me to set aside > my Orion II and FT-1000D for the time being. On transmit, CW > could be a bit smoother. I use Winkey for direct keying of > the radio, and have sample rate set at 48 kHz and buffer size > at 256, which seems to work pretty well. I'm open to any > suggestions that might improve the CW while keeping the 25 > and 50 hz filter band pass skirts reasonably sharp. > > A "like to see" on my wish list is a spotting button on the > PowerSDR that would allow me to check my transmit tone > without actually transmitting. > > Dave, W5UN > > > _______________________________________________ > FlexRadio mailing list > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio > Homepage: http://www.flex-radio.com/ > > _______________________________________________ FlexRadio mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
