Re: P3 SVGA external monitor freezes - RFI?
Posted by
Byron Servies on
Nov 06, 2014; 12:04am
URL: http://elecraft.85.s1.nabble.com/P3-SVGA-external-monitor-freezes-RFI-tp7594411p7594428.html
Hi Mike,
My Samsung monitor includes the screw holes to attach it to a standard
VESA monitor mount. One of these has a little triangle next to it and
my ohm meter informs me it is connected to the VGA port D-shell. I
have bonded it to the rest of my system via this point.
Now, I don't have a KPA500 or P3 (sob!) but it might be something to try,
73, Byron N6NUL
On Wed, Nov 5, 2014 at 9:32 AM, mike <
[hidden email]> wrote:
> When using KPA500 my external monitor (and the P3 display) often freezes,
> sometimes up to 5 seconds, after I transmit. With the external display
> disabled, the P3 does not freeze (and incidentally it refreshes much faster
> without the ext monitor enabled.) I also notice a slight flickering of the
> monitor screen while transmitting. I take this to be a RFI problem. I have
> added four snap on ferrite beads on each end of the VGA cable. The monitor
> is as far away from the amp and feedlines as I can get it and all equipment
> K3, P3, KPA500, KAT500 are bonded to a ground bus. This is not unique to
> this monitor as it happened with a different smaller monitor I used before.
>
> This has always been a problem, and I would like to eliminate it as it is
> very disruptive to is usefulness in finding a clear spot to break through a
> pileup. Not sure what else to do. Has anyone else had this issue?
>
--
- Northern California Contest Club
- CU in the Cal QSO Party 3-4 Oct 2015
- www.cqp.org
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