[Elecraft] mods to K2

[drewko]

I was curious to determine what a 3 db increase in power output might
mean in terms of total number of possible contacts. So I set up my K3
to run WSPR on 20 meters for a while today:

At regular intervals over the course of 9 hours the power output was
toggled back and forth between 5 and 10 watts, logging some 2,000
signal reports for the entire period. 

So, how much is a 3 db increase in power output worth? According to my
WSPR log data, about 40% more contacts. (At that rate a 6 db increase
would give nearly twice as many contacts. And a K3/100 should have
about three times as many QSOs in it than a K3/10...)

Anyhow, the original intention to mod the K2 might be justified. It's
not an insignificant improvement, though it might be good to log a few
thousand more reports to make sure.

73,
Drew
AF2Z






On Fri, 27 Sep 2013 08:24:39 -0700, you wrote:

>My first thought on the audio was to get some efficient earbuds. Lightweight and cheap.
>
>Over on the KX3 list, people like the Chill Pill powered speakers.
>
>I know it is a second box, but the Hardrock 50 amp has been getting good reviews. You would not need to get it out except in an emergency, so it could stay deep in the pack. See: http://www.hobbypcb.com/amateur-radio/amateur-radio/hardrock-50-hf-power-amp-kit.html
>
>I think there is a lot of evidence that 3dB does not matter. 10dB matters. 6dB might matter.
>
>wunder
>Walter Underwood
>K6WRU
>CM87wj
>