If it has a slot for attaching a security tether, you can use that.
On Sun, Oct 31, 2010 at 9:15 AM, Russell Magnuson <[email protected]>wrote: > Tim, I am using a notebook computer so a more formal ground technique > eludes > me (short of drilling holes into it in order to connect to its internal > ground plan...). I'm not sure it even has a grounded metal shell type > connector on it that I could connect to. So any advice you have would be > appreciated. I am assuming that currently my best path to the Flex-3000 > ground is through the shield in the firewire cable. > - Russ, KFiK > > > On 10/30/10 3:44 PM, "Tim Ellison" <[email protected]> wrote: > > > Do you have the PC grounded to the radio? > > > > Also you may need more ferrite beads on the Firewire cable > > > > http://kc.flexradio.com/KnowledgebaseArticle50370.aspx > > > > -Tim > > > > > > -----Original Message----- > > From: [email protected] > > [mailto:[email protected]] On Behalf Of Russell Magnuson > > Sent: Saturday, October 30, 2010 3:00 PM > > To: [email protected] > > Subject: [Flexradio] Flex-3000 freezing up on transmit > > > > Hello all, > > > > I have been fighting a problem with my Flex-3000 setup (or one that it is > a > > victim of) which I believe... is related to RF getting back into it and > > freezing it up (Problem: display wave form freezes on transmit after > > modulation, Flex-3000 requires a power cycle/PSDR needs to be restarted > on my > > notebook PC). > > > > At first I thought it was a problem with my firewire card and all that, > but > > eventually got to try transmitting into a dummy load and under this > scenario > > the rig does not freeze up when transmitting (all the way up to full > power > > out/100w). > > > > Other details: > > > > * 50¹ of LMR-400 feeding a Radiowavz OCF DX 80 ( replaced RG-8X with the > > LMR-400 as part of my debug process here) > > * Insertion/use of an external tuner does not seem to change the symptoms > or > > prevent freeze up > > * Increasing output power (and Mic gain to drive it) beyond a few watts > into > > the antenna causes it to crash > > * Problem seems to be worst on 40m, but I have had it crash on 20m as > well. > > Higher bands seen less prone to crashing > > > > Grounding: > > > > I have been trying different grounding things but to no avail. I DO NOT > > currently have a 8¹ rod handily pounded into the ground nearby. I have > tried > > the incoming copper water pipe in addition to normal A/C house ground (I > also > > tried a 50¹ run of RG-8x to that incoming water pipe, with the C/S > shorted on > > the pipe end and a .01uf ceramic cap between the center and the shield on > the > > other end, where I then connected the center to the GND on the > Flex-3000). > > > > Other rigs: > > > > Prior to purchasing the Flex-3000 I have been running my FT-897D into > this > > same antenna setup with no known (or detected) issues related to ground > or > > RFI, etc. > > > > Thoughts? Ideas? Theories? What am I missing here? Is there anything in > the > > Flex-3000 that maybe is futz in some way that would make it > hypersensitive to > > some RF(???) in the shack? Or am I missing some other angle here? > > > > Thanks in advance, > > Russ, KF1K > > > > > > > > _______________________________________________ > > 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.flexradio.com/ Homepage: > http://www.flexradio.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.flexradio.com/ Homepage: > http://www.flexradio.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.flexradio.com/ Homepage: http://www.flexradio.com/
