Interesting statement. How did you determine this?
I brought home from work my professional service monitor and checked
my K3 (SN-4340) s-meter. Except from S0-S1 all other steps were
exactly 6-dB. S9 = -73 dBm as advertised. I didn't bother much
measuring above S9 so cannot comment on linearity in that region.
I also measured both K3 and KX3 preamps on ON/OFF on 50 & 28 MHz:
<http://www.kl7uw.com/HF.htm>http://www.kl7uw.com/HF.htm
Note K3 sensitivity using -73 dBm on 50-MHz with internal preamp off
was S8 and S9+5 with internal preamp on. This was using my XG3 as
signal source so it might be slightly inaccurate (+/- 1 dB). I
checked the XG3 with my mw power meter for accurate output at 0
dBm. Subsequent to these measurements Elecraft came out with the PR6
to help K3 sensitivity on 10m & 6m and I have not checked whether
that effects s-meter readings (probably).
You might note that I tested 50-MHz sensitivity using an ARR Gasfet
preamp that has 24-dB gain. It raises baseline noise due to the gain
but I use it for 6m eme. Slightly better than the PR6, but I use
just the PR6 for non-eme use. Built-in bypass connectors on the PR6
make using the ARR easy to switch in/out.
73, Ed - KL7UW
Date: Fri, 24 Apr 2020 07:48:58 -0400
From: John Stengrevics <jstengrev...@comcast.net>
To: Morgan Bailey <mbaileyc...@gmail.com>
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] K4 S-meter characteristics
Message-ID: <7373a874-0e11-493c-b404-4315ef3af...@comcast.net>
Content-Type: text/plain; charset=utf-8
Agree completely. I find all S meters to be totally inaccurate and
next to useless, including my K3S?.
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
dubus...@gmail.com
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
