I've seen that cute little pattern on my display as well. Unfortunately I live in a six story building with all kinds of switchers everywhere. My panadaptor reminds me of the problem every time I turn on the radio!! Now I know what it is!!
Try putting your cellphone near the radio and watch what happens when you receive a call. Thanks! Edwin Marzan AB2VW > From: [email protected] > To: [email protected] > Date: Thu, 22 Jul 2010 13:55:43 -0500 > CC: [email protected]; [email protected] > Subject: [FlexEdge] noise source found and killed > > Before: > > http://www.rcallen.com/noise14.gif > > 'Twas a little switcher that was powering my Oak Hills Research QRP Wattmeter > giving it a convienient path to my attached 1500. It was s9+20 at 14.015 on > my handheld Kenwood thf6. > > See the little bugger at: > > http://www.rcallen.com/offender.gif > > Thanks for all the ideas and now the bottom end of 20m is useable. > > http://www.rcallen.com/after.gif > > Great radio, Graham. > > Regards, > > Richard W5SXD > > Graham Haddock <[email protected]> wrote: > (07/22/2010 11:07) > > >Richard: > > > >That looks like the signature of a switching powersupply. Are you using a > >"wallwart" or other switching supply > >to power your 1500? I would start by changing power supplies. > > > >Cheap switching supplies are notorious for emitting this kind of garbage. > > > >--- Graham / KE9H > > > >== > > > >On Thu, Jul 22, 2010 at 10:53 AM, richard allen <[email protected]> wrote: > > > >> Does anyone recognise this type of noise? > >> > >> http://www.rcallen.com/noise14.gif > >> > >> I figured I'd ask before starting to unplug everything as I have all sorts > >> of possibilities in my lab. I still hear it with a dummy load on the > >> antenna of my 1500 but not as strong. > >> > >> Richard W5SXD > >> > >> > >> > >> _______________________________________________ > >> Flexedge mailing list > >> [email protected] > >> http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz > >> This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used > >> for posting topics related to SDR software development and experimentalist > >> who are using beta versions of the software. > >> > > > _______________________________________________ > Flexedge mailing list > [email protected] > http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz > This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used > for posting topics related to SDR software development and experimentalist > who are using beta versions of the software. _________________________________________________________________ The New Busy is not the old busy. Search, chat and e-mail from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_3 _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
