Re: [Flexradio] Opposite side band
Unfortunately not every signal you see on the ham bands are perfect. I frequently see signals with quite a bit of energy in what should be the opposite sideband. Surely you do not mean 500KHz(500 kilocycles), maybe 500 Hz (Cycles). You have a great radio, it is just reporting what it sees out there. 73's Jim, W4ATK [EMAIL PROTECTED] http://web.mac.com/jimrogers_w4atk -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Friday, December 14, 2007 7:40 AM To: flexradio@flex-radio.biz Subject: [Flexradio] Opposite side band In my SDR-1000, I see (and hear) information that I believe should no be there. Rather than the signal dieing at the center frequency, you see significant energy for about 500 kc in the opposite sideband. I have checked and double checked cables, etc. Anyone have any ideas? This is a 6mo old unit that has always been this way, but now I am starting to clean up what I would consider to be undesirable issues. Harry W9BR **See AOL's top rated recipes (http://food.aol.com/top-rated-recipes?NCID=aoltop000304) -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20 071214/9635f7ec/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 Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.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 Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
[Flexradio] Opposite side band
In my SDR-1000, I see (and hear) information that I believe should no be there. Rather than the signal dieing at the center frequency, you see significant energy for about 500 kc in the opposite sideband. I have checked and double checked cables, etc. Anyone have any ideas? This is a 6mo old unit that has always been this way, but now I am starting to clean up what I would consider to be undesirable issues. Harry W9BR **See AOL's top rated recipes (http://food.aol.com/top-rated-recipes?NCID=aoltop000304) -- next part -- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20071214/9635f7ec/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 Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
Re: [Flexradio] Opposite Side band suppression?
Eric, I have the Hosa cables with the orange in the even connectors. Feeding the mic audio from the rear of the SDR to input jacks 3 and 4. I am not driving the ALC past 0 db, but when listening on a separate receiver I am clearly hearing audio on the opposite SB. I have not loaded 1.3.5 beta yet, and have not tried the release canidate 1.2.0 with the 44 sound card. Maybe I should try one of those. 73, Dudley WA5QPZ At 10:16 AM 5/27/2005 -0500, FlexRadio - Eric wrote: Dudley, I haven't had any trouble here in the lab. What kind of results do you get with the Image Null calibration? Make sure the Delta 44 cables are plugged in correctly (using Hosa cables, the orange goes to the even numbered plugs). Getting it backwards will cause your receive signals to be up 22KHz and you will actually be listening to the image at the VFO freq. Eric Dudley Hurry wrote: I am still having trouble getting good isolation on the opposite side band with the Delta 44 card.. I anyone else seeing this? Worked fine with the Turtle Beach card and the same SW (1.3.4 Beta). 73, Dudley WA5QPZ ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Re: [Flexradio] Opposite Side band suppression?
Dudley, I haven't had any trouble here in the lab. What kind of results do you get with the Image Null calibration? Make sure the Delta 44 cables are plugged in correctly (using Hosa cables, the orange goes to the even numbered plugs). Getting it backwards will cause your receive signals to be up 22KHz and you will actually be listening to the image at the VFO freq. Eric Dudley Hurry wrote: I am still having trouble getting good isolation on the opposite side band with the Delta 44 card.. I anyone else seeing this? Worked fine with the Turtle Beach card and the same SW (1.3.4 Beta). 73, Dudley WA5QPZ ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
[Flexradio] Opposite Side band suppression?
I am still having trouble getting good isolation on the opposite side band with the Delta 44 card.. I anyone else seeing this? Worked fine with the Turtle Beach card and the same SW (1.3.4 Beta). 73, Dudley WA5QPZ
