[Elecraft] Noise Problems...still

BlakeM n4gi at tampabay.rr.com
Sun Aug 1 14:07:14 EDT 2004


> >      Well, the noise level has been lowered a lot, but I'm still getting
> > higher noise levels than I think I should.  On 40-meters, I am getting
an
> average
> > of S2-4 peaking at S5 around the time thunderstorms begin to form.

I wish that I only had S2-S4 noise on 40!!!  If you put your RF gain knob to
use, that should be no problem at all.

How about a loop or beverage RX antenna?  Although it's rarely discussed,
many top notch stations swear by RX antennas for 40...

RE: elevated radials;  I've been messing with EZNEC models of both elevated
and ground mounted radials.  Unless they're really high (unpractically high,
1/4wl) they always show a bit less performance than a good normal ground
mounted system (at least 32, 0.2 to 0.4 WL long).  Neither method is going
to have much to do with the amount of noise recieved.  A dummy load is a
very low noise antenna though :-)

Perhaps a reflector like towertalk or antennaware could shed more light on
your situation.

73,
Blake N4GI







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