Ferrite every cable touching the PC, make sure that you have a single ground point and everything is grounded to that (avoid group loops which are the worst to track down, for example, you ground the radio, then the shield of an audio cable grounds the computer to the radio and the computer has a serial connection to a rotor box which grounds the computer to the rotor and the rotor is grounded to the radio) Neal Campbell Abroham Neal Software www.abrohamnealsoftware.com (540) 242 0911
Amateur Radio: K3NC Blog: http://www.abrohamnealsoftware.com/blog/ DXBase bug reports: email to [email protected] Abroham Neal forums: http:/www.abrohamnealsoftware.com/community/ On Thu, Dec 31, 2009 at 10:12 PM, Anthony M <[email protected]>wrote: > I have Ferrite chokes on the firewire cable (3 actually).. I might try > putting a couple of chokes on EVERY cable that goes into the PC.. > Not sure what else to try as I have that many chokes on the feedline I > "doubt" its that.. > > > -------------------------------------------------- > From: "Dudley Hurry" <[email protected]> > Sent: Friday, January 01, 2010 11:54 AM > To: "Anthony M" <[email protected]> > Cc: "flexradio" <[email protected]> > Subject: Re: [Flexradio] Loss of TX power > > RF is getting into the computer or FireWire cable somewhere and stopping >> the TX thread.. I bet it won't do it into a dummy load.. >> >> 73, >> Dudley >> >> WA5QPZ >> >> >> >> Anthony M wrote: >> >>> Hi Guys, >>> >>> Having a weird problem - (Flex 3000, Windows 7 x64 - Firewire driver and >>> software up to date from flex website) >>> When using Digimodes, I get halfway though a QSO on PSK - then all of a >>> sudden I notice ive stopped transmitting any power.. >>> (50watts normally, but I look over and 0watts output).. I close PowerSDR >>> and retry, no change. I close PowerSDR AND switch radio off for a sec then >>> back on, and its back to normal until it happens again.. >>> >>> I have low SWR (less than 1:5:1) and only running 50Watts.. >>> >>> Very Very annoying.. >>> >>> >>> >>> _______________________________________________ >>> 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/ >>> Message delivered to [email protected] >>> >>> >> _______________________________________________ >> 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/ >> Message delivered to [email protected] >> > > > _______________________________________________ > 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/ > Message delivered to [email protected] > _______________________________________________ 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/ Message delivered to [email protected]
