Hi Ed.
I am more interested in a non-linear class C or higher amp for those
bands as was not thinking to run modes that need a linear amp. WSPR, a
WSJT mode, WSQ, and the like.
73, tom w7sua
Chino Valley AZ
On 7/26/2015 1:23 PM, Edward R Cole wrote:
With the recent expansion of use to 630m for the K3s and upgraded K3
which only transmit at nom 1mw, a question arises:
Is there interest in a linear amplifier taking 1mw drive to produce
either 25w or 100w?
I pick those two power outputs because with typically inefficient
antennas on 630m 25w => 1w ERP and 100w => 5w ERP (approx). These two
ERP are mentioned in the WARC-12 band approval and FCC as possible max
allowed power levels. Currently the ARRL Experimental Group is approved
at 20w ERP but there are not many stations running that in the group. I
run 100w with 0.1mw drive from my K3 for approx 3w ERP. 1mw is typical
output for mixers so the amp would be usable by low-power transverters,
as well.
I am wondering what kind of interest there would be for a linear amp
that could be driven by the K3s/K3? I would probably have an optional
Rx preamp in such a package. No idea of cost at this juncture as its
just in "maybe status". Wayne has stated to me that Elecraft is not
intending to build such due to the limited market.
73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com
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