FWIW - I have the computer adjacent to the Flex (in contact actually!) and the ground is 2" strap between the 2 closest screws (about 3")
Jim W4YXU > -----Original Message----- > From: flexradio-boun...@flex-radio.biz [mailto:flexradio-bounces@flex- > radio.biz] On Behalf Of Al K0VM > Sent: Monday, September 12, 2011 1:04 PM > To: flexradio@flex-radio.biz > Subject: Re: [Flexradio] Current Flex 3000 software shuts down when > runninghigh power. > > Depending on where the shack ground is, it may be MORE important do > have a short ground ( no longer than the length of the firewire cable) > between the computer chassis and the Flex chassis... ( and NO chokes > that ground ! ) > > Al, K0VM > > > > On 9/12/2011 12:00 PM, flexradio-requ...@flex-radio.biz wrote: > > From: Ray, K9DUR > > Sent: Thursday, September 08, 2011 8:11 PM > > To:fmeac...@aol.com ;flexradio@flex-radio.biz > > Subject: Re: [Flexradio] Current Flex 3000 software shuts down when > runninghigh power. > > > > > > Frank, > > > > That definitely sounds like RF feedback. The most likely culprit is the > > firewire cable. I had the same issue running my amp with my FLEX-5000A. > > > > First, make certain that your PC is connected to the shack ground. > After > > all, it is better than half of the radio. > > > > If you are using the stock firewire cable that came with the rig, > replace it > > with the one by Granite Digital. Is costs about $40& is availabel from > > Flex. > > > > Finally, if you still are having problems, add ferrite chokes at each > end of > > the firewire cable. > > > > The above steps eliminated my RF feedback problems entirely. Now I can > run > > 1kW on all bands with no issues. > > > > 73, Ray, K9DUR > > http://k9dur.info > > > _______________________________________________ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > 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.flexradio.com/ Homepage: > http://www.flexradio.com/ _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz 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.flexradio.com/ Homepage: http://www.flexradio.com/
