Most computers and many monitors are noisy, John. Just use a well
shielded transmission line from your station for the first 50 feet or
so (with modern shielded rig, no unsealed antenna tuners in the
shack, no ladder-line in the shack, etc) and the noise will be _very_ low.
Jerry W4UK
At 12:36 PM 11/29/2007, John Geiger wrote:
>Recently, I discovered how RF noisy my fairly recent
>ebay purchased laptop is (an Acer Pentium III). It
>replaced a Micron Pentium 120mhz computer which was
>very quiet on the radio, but also kind of slow, and I
>thought a laptop would be nice in the shack because it
>would mean less wires, etc.
>
>I find that it really raises the noise floor on 80,
>somewhat on 40, and on parts of 20 and 15. It is
>probably bad on other bands as well, but I really
>haven't experimented with them yet.
>
>So I probably need to get a replacement, unless anyone
>knows how to kill this noise. What are some good, RF
>quiet computers to look at? I don't have alot of money
>to spend, but can come up with a little bit. Speed
>probably won't be that important, as long as I can use
>it for some of the digital modes. The Micron
>unfortunately died, or I would hook it back up.
>
>73s John AA5JG
>
>
>
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