Hi, I just unpacked a Viewsonic 19 inch PF790 yesterday and hooked it up to my
computer.
I haven't had any interference with my Omni VI opt. 3 sitting about 8 inches
from the monitor.
Ran up and down the bands after reading the note and didn't notice anything.
Different video cards can make a difference also, I've seen notes from people on
the Writelog reflector that have swapped video cards and had that quiet a noisy
monitor. As long as he moved the Pegasus and had his problem solved the point
is moot in this case...maybe relevant for others who are having the interference
problem though.
George / KF9YR
Al Williams wrote:
> On the Viewsonic monitor--
>
> My 17" Viewsonic monitor is pretty RF quiet; it is now 6 years old. I dont
> know
> about current large monitors,i.e. 21" but they didnt use to be class b
> interference
> rated which can make a huge difference.
>
> k7puc
>
> -----Original Message-----
> From: Larry Kayser <kayser@king.igs.net>
> To: tentec@contesting.com <tentec@contesting.com>
To: <tentec@contesting.com>
> Date: Wednesday, February 09, 2000 7:40 PM
> Subject: [TenTec] Pegasus, bad audio, bad CW note, Wow!
>
> >
> >Greetings All:
> >
> >A few days ago a nice new Pegasus arrived and after a few hours of fiddling
> >with it, putting it under the table, sitting on a nice regulated 20A power
> >supply, I decided to turn it on and see what gives. I have been writing
> >some software for the new radio and courtesy of a long suffering fellow
> >Pegasus owner the basic stuff to get the radio going was sitting on my
> >amateur radio PC here. The little Win 95 machine was connected the Pegasus
> >and the RX was happily listening to some CW on 20 Meters.
> >
> >I reached over and turned on the big ViewSonic monitor on my development
> >machine to get some more software for debugging on the Pegasus and the
> >Pegasus went nuts. The audio was instantly terrible, distorted and awful.
> >I turned off the ViewSonic and the audio returned to normal.
> >
> >This has the potential to be a long story. It wont be.
> >
> >I reached under the table and turned the Pegasus 90 degrees. Turned on the
> >ViewSonic and the audio never changed at all. Moved the Pegasus two and
> >four feet sideways, then moved it forward and backward about 2 feet at a
> >time. I could clear up the audio by moving the Pegasus as little as a foot
> >in some directions. I moved the Pegasus beside the monitor, both sides,
> >above it, and there were spots were this monitor hammered the radio when it
> >was in close, farther away it did not bother the radio at all. This
> monitor
> >also does a job on my MFJ Model 784 DSP filter, bad hum when the monitor is
> >turned on.
> >
> >When I got my transmitting software working, I redid some of the
> experiments
> >and the Pegasus CW note could be adversely affected by the Monitor.
> >
> >I have a new 90 Volt, 25 Amp power supply for a large Class D Power FET
> >amplifier I am building here and the transformer is a "recovered" from a
> >supply that had a resonant 60 hertz regulator feature in its previous life.
> >This transformer will upset the Pegasus instantly up to about 5 feet, then
> >it is not noticeable at all.
> >
> >Who is at fault? I am NOT going to blame the Pegasus radio, it is the new
> >kid on the block around this shack but that does not mean the current
> >residents are faultless! The items that bother the Pegasus are also the
> >items that have bothered other things around here as well.
> >
> >If you have a Pegasus and you get a lousy report on your CW note or the
> >receive audio is distorted then look around your own shack for the thing
> >that is causing it.
> >
> >Larry
> >VA3LK
> >
> >
> >
> >
> >--
> >FAQ on WWW: http://www.contesting.com/tentecfaq.htm
> >Submissions: tentec@contesting.com
> >Administrative requests: tentec-REQUEST@contesting.com
> >Problems: owner-tentec@contesting.com
> >Search: http://www.contesting.com/km9p/search.htm
> >
>
> --
> FAQ on WWW: http://www.contesting.com/tentecfaq.htm
> Submissions: tentec@contesting.com
> Administrative requests: tentec-REQUEST@contesting.com
> Problems: owner-tentec@contesting.com
> Search: http://www.contesting.com/km9p/search.htm
--
George Skoubis - 510 W. Walnut, Dodgeville, WI 53533
gaskoub@mhtc.net (608)935-5076
--
FAQ on WWW: http://www.contesting.com/tentecfaq.htm
Submissions: tentec@contesting.com
Administrative requests: tentec-REQUEST@contesting.com
Problems: owner-tentec@contesting.com
Search: http://www.contesting.com/km9p/search.htm
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