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Re: [CQ-Contest] Cordless keyboard / mouse

To: Steve <steveac@charter.net>, cq-contest@contesting.com
Subject: Re: [CQ-Contest] Cordless keyboard / mouse
From: Tim Gardner <n9lf@yahoo.com>
Reply-to: n9lf@arrl.net
Date: Sun, 29 Jan 2006 18:00:41 -0800 (PST)
List-post: <mailto:cq-contest@contesting.com>
It won't help with the keyboard, but cordless mice
that use infra-red are available.  I never used mine
in a high-RF environment, but it seems likely that it
would be RF proof.


Tim - N9LF


--- Steve <steveac@charter.net> wrote:

> I have a Logitech Cordless Freedom Navigator
> keyboard and mouse. I have 
> tried several times over the past few years to use
> these devices on the 
> PC at my radio desk. But they do not like it when I
> operate with high 
> power on 160 or 10 meter CW. Operation on other
> bands doesn't seem to 
> bother them.
> 
> The mouse and keyboard are normally good for at
> least a few feet between 
> them and the Logitech receiver. But when I operate
> on 160 or 10 meter CW 
> I have to keep the keyboard and mouse within a
> couple of inches of the 
> Logitech receiver, otherwise they won't work until
> the transmitter stops 
> transmitting, at which point they are back to
> business as usual. This 
> constraint prods me back to wired keyboard and
> mouse. After a while I 
> tire of the cords and go back and try the cordless
> devices again, with 
> the same results.
> 
> Perhaps part of my problem lies in the use of open
> wire transmission 
> line. The open wire terminates at my tuners within 4
> or 5 feet of where 
> the keyboard/mouse are located on my operating desk
> . . . a source of RF 
> that might be of greater level than if I were using
> coax?
> 
> Anyone know of cordless keyboards and mice that
> aren't susceptible to 
> being desensitized by nearby strong RF fields? (I'm
> assuming 
> desensitization is what's going on . . . educate me
> if there's a better 
> description.)
> 
> Thanks.
> 
> Steve K8JQ
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>
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> 


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