What QST? Would be a copy available?
73,
Martin, OK1RR
Dne 21. 08. 19 v 18:24 K9FD napsal(a):
An excellent article is in an old QST called "station design for DX"
It mentions that 1 DB improvement in the station will provide a whole
new layer of DX signals. Very true.
In the average station you can easily find several DB that can be gained.
If your into DX think of all your missing.
I always have to laugh when the statement is made "I can work all I can
hear"
that says it all, its what your not hearing is the problem.
73 Merv K9FD
These recordings are an impressive demonstration of the benefit of
one dB of signal strength improvement in a weak signal situation.
Click on the links on this website:
www.ab7e.com/weak_signal/mdd.html
73
Frank
W3LPL
----- Original Message -----
From: "David Gilbert" <xda...@cis-broadband.com>
To: elecr...@mailman.qth.net
Sent: Wednesday, August 21, 2019 7:02:21 AM
Subject: Re: [Elecraft] KPA500 Coax size requirements
That's not a universally true statement.
Several years ago I was trying to decide which antenna to buy, and my
choice came down to two antennas that were 2 db apart. I created some
audio files by recording typical band noise and then overlaying them
with recorded CW messages at various strengths. The difference between
1 dB above the noise level and 2 dB above the noise level can make the
difference between no copy and copy. The files and testing methodology
can be found here:
http://www.ab7e.com/weak_signal/mdd.html
If you're ragchewing it doesn't matter, but if you're trying to make a
contact and your signal is at the level of the mud it does.
73,
Dave AB7E
On 8/20/2019 9:18 PM, Jim Danehy wrote:
ONE DB loss is the LEAST DETECTABLE amount a human can detect. Hardly
if not impossible to notice.
Jim
W9VNE/VA3VNE
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