Topband: Omni VI+ A/B Test Results

[James Wolf]

I'd have to dig out the reference if requested, but atmospheric noise as a
function of frequency is about 30 dB more at 2 MHz than it is at 30 MHz.

James Wolf, KR9U


-----Original Message-----
From: topband-bounces at contesting.com [mailto:topband-bounces at contesting.com]
On Behalf Of k6se at juno.com
Subject: Re: Topband: Omni VI+ A/B Test Results


Mike, W4EF wrote:

"I would agree that what you say is true as long as you are sure that the
signals you are listening to are well above the receiver's thermal noise
floor." ========== The "band" (atmospheric) noise on 160-meters is such that
a signal in the noise is probably well above the receiver's noise floor, hi.

Testing with a lab signal generator cannot duplicate weak signal reception
in this respect.