Topband: Impressive demonstration of one dB of signal strength improvement

[K9FD]

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" <xdavid at cis-broadband.com>
> To: elecraft at 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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