[Elecraft] K3 & flatscreen monitor noise - solved

[Bill VanAlstyne W5WVO]

HP 2709m (27" LCD), which sits literally on top of my K3, is 100% quiet. 
This monitor is absolutely without broadband noise emission at any frequency 
I have used, HF-VHF. I haven't gone so far as to scan it with a SA, because 
I don't have one, but nothing I can detect actually using it while on the 
air.

Really love this monitor, BTW. I'd put in a second one if I could afford it. 
Exceptionally clear and bright, driving it with DVI. Can also drive it with 
analog VGA and HDMI, neither of which I've tried. CNET gave it a "GOOD" 
three-star rating, while user reviews were somewhat more generous (four 
stars).

Bill W5WVO


--------------------------------------------------
From: "Fred Maas" <just.one.hill at gmail.com>
Sent: Sunday, September 05, 2010 17:48
To: <elecraft at mailman.qth.net>
Subject: [Elecraft] K3 & flatscreen monitor noise - solved

> My flatscreen, by the way, is an inexpensive LG.
>
> It was suggested that the garbage is likely from the switcher supply 
> within the flatscreen monitor.
>
> I put the monitor on an ICE AC powerline filter, and 99% of the noise went 
> away, the worst of it is now well down.  That's much better!
>
> Still.  I'll bet that there are monitors out there that are clean along 
> with many which are not.  some folks who have monitors that are by 
> themselves clean, might offer the model to the list.
>
> 73,  Fred - kt5x
>
> K2 # 0700
>
> K3 # 0144
>
> www.KT5X.com
>
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