[Lowfer] 185.300 again

[WE0H]

I think he is using an untuned HF vertical now. I was thinking a tuned LF
antenna would be quieter. I see your point on big loops for RX work but my
North/South loop received way lower noise than the flattop did. Oh well,
what's new your way? Been close to 80F here all week with bright sunshine.

Mike
WE0H
WD2XGI


-----Original Message-----
From: lowfer-admin@mailman.qth.net [mailto:lowfer-admin@mailman.qth.net]
On Behalf Of Bill Ashlock
Sent: Friday, April 16, 2004 11:18 PM
To: lowfer@mailman.qth.net
Subject: RE: [Lowfer] 185.300 again

>Maybe a nice quiet 50x50 RX loop is in order for the Grabber?

If it aint broke don't fix it! Except for minor glitches Methinks Steve has
done exceptionally well with this antenna since its installation. Ask Larry
and some of the other guys in Steve's neck of the woods that try to compete.

Problems for big loop RX are:
1. They are directional but non-rotatable.
2. They need to be tuned and have a narrow bandwidth.
3. They tend to have poorer S/N than typical 6ft to 10ft loops when one has
multiple neighborhood noise sources (such as you and I have). With a smaller
loop you can be much more selective on the location that provides the least
noise.
4. Loop size (once >6ft) is usually of no advantage. Who needs more signal
once they see 2 uv or so at the noise floor?

Bill