On Feb 5, 2005, at 4:25 AM, Radioal wrote:
----- Original Message ----- From: "R. Measures" <r@somis.org>
To: "Radioal" <al.dolgosh@hamradio.org>
Cc: <amps@contesting.com>; "Ian White, G3SEK" <g3sek@ifwtech.co.uk>
Sent: Saturday, February 05, 2005 6:39 AM
Subject: Re: [Amps] 10 DB increase
On Feb 4, 2005, at 4:03 PM, Radioal wrote:
A 10 dB increase in power will be propagated as a 10 dB increase -
regardless of the state of the ionosphere, antennas, locations, etc.
I used to think that this was the case until I sold the original
Plywood Box/8170 amplifier. Even though I had measured the
amplifier's voltage-gain as x10 with an oscilloscope (20db
power-gain), but on the air, I measured 20 - 23db with my calibrated
S-meter. Other people with calibrated S-meters reported the same
crazy thing. Others who saw the 23db change said that Stanford
(University) Research Institute had observed something similar during
their ionospheric heating research project
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
The ionosphere is not a parametric amplifier being pumped by solar
energy - there are some weird theories floating around that have not
been proven.
So why did a 20db amplifier deliver 23db during certain conditions and
20db at other times?
Al - K8EUR
Richard L. Measures, AG6K, 805.386.3734. www.somis.org
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