One more item I noticed - some of the new computer cases are NOT all metal enclosed. That did make a small difference in my case.
Jim W4YXU > -----Original Message----- > From: flexradio-boun...@flex-radio.biz [mailto:flexradio-bounces@flex- > radio.biz] On Behalf Of William H. Fite > Sent: Monday, September 12, 2011 9:57 AM > To: Neal Campbell > Cc: flexradio@flex-radio.biz > Subject: Re: [Flexradio] Flex 3K and 5K software shut down QRO. > > I, like the others who've checked in here, have put ferrites on every > single > cable in the shack. It seems like overkill but I've had absolutely no > issues with RF since doing so. Also, of course, be sure that your station > ground is really good, ground wires or straps are as short as possible, > and > all that stuff that you doubtless have done already. > > Good luck. You'll find the entry point sooner or late. Hopefully sooner. > > Bill > > > > On Mon, Sep 12, 2011 at 9:41 AM, Neal Campbell > <abrohamn...@gmail.com>wrote: > > > You might try an isolator from RFWorks between the antenna and your > shack. > > That or an UNUN/BALUN depending on your antenna situation. > > > > BTW, what are your antennas? > > > > 73 > > Neal > > > > On Mon, Sep 12, 2011 at 8:54 AM, W1JCW <w1...@hotmail.com> wrote: > > > > > No luck adding the ground or the two chokes on each end of the fire > ware > > > cable. > > > > > > It seems just 20m even when I don't use my Acom 2k. If I turn the > drive > > up > > > to 75w > > > the audio cuts in and out and I can hear the relays in the 5K. > > > > > > All other bands qro are fine, no issue. > > > > > > Must be some harmonic on 20m getting into the box or feeding back into > > it. > > > > > > Suggestions ?? > > > > > > 73- > > > W1JCW > > > John > > > > > > > > > From: W1JCW > > > Sent: Friday, September 09, 2011 8:44 AM > > > To: Ray, K9DUR > > > Subject: Flex 3K and 5K software shut down QRO. > > > > > > > > > I don't have a ground on the PC so I'll add that tonight and see how > it > > > works. > > > > > > I did have a choke on each end of the fw cable but that didn't work > but I > > > had no ground then. > > > I'll put a choke on each end of the fw if adding the ground on the PC > > > doesn't work. > > > > > > Stay tuned. > > > > > > Thanks for the replies. > > > > > > 73- > > > W1JCW > > > John > > > > > > > > > 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/ > > > > > > > > > > > -- > > Abroham Neal Software > > www.abrohamnealsoftware.com > > Work:(540) 645 5394 > > Mobile:(540) 645 8171 > > _______________________________________________ > > 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/ _______________________________________________ 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/
