Any switching power supply will cause this wither it be to power the radio, Run the computer, power your internet router / Ethernet switch, Ethernet cards, USB devices, hand held charger, or lap top charger can cause this. Try running the radio off of a battery and a laptop with every AC source unplugged and see if you still have the problem then if you don't, plug one thing in at a time until the culprit show up. I had problems with Astron, MFJ, and OTHER power supplies, Linksys wall warts, most of the Battery voltage boosters, and any UPS type devices. Even LCD monitors have switching powers supplies some built in some not.
Hope you find the problem 73's Bret WX7Y -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dave Gomberg Sent: Saturday, May 30, 2009 8:15 PM To: [email protected] Subject: Re: [Flexradio] SDR-1000 vs Flex-3000 is it worth the upgrade? Nope, this PM no TV anywhere nearby. Except an LCD about 50' away. At 18:44 5/30/2009, N4PY2 wrote: >Then it must be a TV nearby somewhere. > >Carl Moreschi N4PY >121 Little Bell Drive >Bell Mountain >Hays, NC 28635 >----- Original Message ----- From: "Dave Gomberg" <[email protected]> >To: "N4PY2" <[email protected]> >Sent: Saturday, May 30, 2009 8:39 PM >Subject: Re: [Flexradio] SDR-1000 vs Flex-3000 is it worth the upgrade? > > >>Nope, LCD. >> >>At 14:00 5/30/2009, N4PY2 wrote: >>>That sounds like harmonics from the monitor oscillator. Are you running a >>>CRT monitor. If so, get an LCD monitor. That will get rid of the 15 khz >>>harmonics. >>> >>> >>>Carl Moreschi N4PY >>>121 Little Bell Drive >>>Bell Mountain >>>Hays, NC 28635 >>>----- Original Message ----- From: "Tim Ellison" <[email protected]> >>>To: "Dave Gomberg" <[email protected]>; <[email protected]> >>>Sent: Saturday, May 30, 2009 4:44 PM >>>Subject: Re: [Flexradio] SDR-1000 vs Flex-3000 is it worth the upgrade? >>> >>> >>>>Hummmm. Every 15 KHz. Those are not DDS spurs, but probably >>>>interference coming from something else external of the radio. A >>>>DDS spur will disappear when you change the DDS (change frequencies). >>>> >>>>What happens when you disconnect the antenna? >>>> >>>> >>>> >>>>-Tim >>>> >>>>-----Original Message----- >>>>From: [email protected] >>>>[mailto:[email protected]] On Behalf Of Dave Gomberg >>>>Sent: Saturday, May 30, 2009 4:09 PM >>>>To: [email protected] >>>>Subject: Re: [Flexradio] SDR-1000 vs Flex-3000 is it worth the upgrade? >>>> >>>>At 12:40 5/30/2009, [email protected] wrote: >>>>>The biggest complaint I have about the 1000 is the amount of spurious >>>>>signals displayed in the higher bands. While the "SR" >>>>>button certainly moves them out of the way, it would be nice to hear >>>>>that the 3000 has improved upon this. >>>> >>>>On my F3K on 20m, there is quite a bit of spurious shown on >>>>Panafall. About every 15Kc >>>> >>>> >>>> >>>>-- >>>>Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com >>>>All addresses, phones, etc. at http://www.wcf.com/ham/info.html >>>>----------------------------------------------------------------- >>>> >>>>_______________________________________________ >>>>FlexRadio Systems Mailing List >>>>[email protected] >>>>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.flex-radio.com/ Homepage: >>>>http://www.flex-radio.com/ >>>> >>>>_______________________________________________ >>>>FlexRadio Systems Mailing List >>>>[email protected] >>>>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.flex-radio.com/ Homepage: >>>>http://www.flex-radio.com/ >>> >>> >>>_______________________________________________ >>>FlexRadio Systems Mailing List >>>[email protected] >>>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.flex-radio.com/ Homepage: >>>http://www.flex-radio.com/ >> >> >>-- >>Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com >>All addresses, phones, etc. at http://www.wcf.com/ham/info.html >>----------------------------------------------------------------- -- Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com All addresses, phones, etc. at http://www.wcf.com/ham/info.html ----------------------------------------------------------------- _______________________________________________ FlexRadio Systems Mailing List [email protected] 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.flex-radio.com/ Homepage: http://www.flex-radio.com/ _______________________________________________ FlexRadio Systems Mailing List [email protected] 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.flex-radio.com/ Homepage: http://www.flex-radio.com/
