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Re: Topband: One Way Propagation.

To: Roger Kennedy <roger@wessexproductions.co.uk>, topband@contesting.com
Subject: Re: Topband: One Way Propagation.
From: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Sat, 16 Jan 2021 16:23:44 -0800
List-post: <mailto:topband@contesting.com>

On 1/16/2021 3:20 PM, Roger Kennedy wrote:

If you have an efficient transmitting antenna, and an accurately calibrated
S Meter, I have found over the decades that most signal reports are pretty
Reciprocal.


73 Roger G3YRO


Even if:

1.  Propagation were always reciprocal.

and

2.  Everyone had a calibrated S meter

and

3.  Everyone used a single antenna for RX
and TX

and

4.  Everyone had the same noise level in their
environment.

There would still be no guarantee that equal S meter
readings would correspond to equal S/N ratios.
For example, you transmit and receive on a dipole, which is
generally better on RX.  If the station at the
other end is (like me) transmitting and receiving
on a vertical, that will make me seem to be an
alligator.

Of course, conditions 1 through 4 are by no means
assured in the first place.

YMMV.

73
Rick N6RK
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