On Sunday, 26 December, 1999 1:19 AM, Swilsonac6@aol.com
[SMTP:Swilsonac6@aol.com] wrote:
> I just got a 19 inch Veiwsonic monitor to replace my 15 inch NEC
multisync
> 4FGe that I have been using for the last few years. I get S5 - S8 noise
every
> 75 - 77 KHz. Thinking it might be this particular monitor I
> switched it for a new NEC V90 19 inch monitor with no real change. The
> interference seems to be coming from the monitor itself.
>
> Have gone back to my 15 inch NEC but miss all that space for extra info
> Has anyone had a similar problem and have a solution ??
The only solution I've ever heard of is to buy a clean monitor to start
with. The Viewsonics are RFI/EMI Junk! Return it or sell it. Before
doing so however, try plugging it into another electrical circuit (run an
extension cord if you have to) or at least a different outlet from the
radio while having it sit close to or at the shack operating position. The
noise may be getting into the radio via the AC circuit. Let us know if it
changed anything. If not, get rid of it.
The NEC Multisyncs have been found to be fairly clean monitors by myself
and other list members; problem is that they're not making some models any
longer like the C500 series which is very clean! I also found the AST
Vision 5v to be just as clean as the NEC C500 that I have.
A year ago, I took a portable shortwave rcvr alomg to the computer store
and tested most the monitors in the store. I went during the day so I
could turn off other nearby monitors while testing a particular monitor. I
explained to the sales guys what I was doing and why, and they said OK.
Tested the compaqs, found them fairly noisey. The Viewsonics were junk (I
repeat myself though). Almost all NECs were fairly clean, but I only
tested 15" since that's all the room I have on the operating table.
> Considering trying a flat screen LCD monitor but they are kinda expensive
I'm really curious to know if these LCDs are the solution. If you do buy
one, let us all know how it works out for you!
73,
de ed -K0iL
-.-. --.- .... .- -- ... -.. . -.- ----- .. .-.. -.-
Ed Edwards -- K0iL
PO Box 375 k0il@arrl.net
Elkhorn, NE 68022-0375 k0il@qsl.net
496-3415 home 552-5425 work 552-5505 fax
Visit my home page: http://www.qsl.net/k0il
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