Hello Mark,
From what you describe, something is very wrong with either your K3 or your
external watt meter setup. How much power are you reading with your
external watt meter when the K3 is set to 100 Watts in CW Mode? Is your
watt meter a peak reading meter (I assume not)?
I am using an external Telepost LP-100 Digital Vector Watt Meter. With my
K3 in SSB mode (with power set to 100 watts and zero compression) I'm
reading 106 watts peak and 40 watts average power into a 50 ohm dummy load.
There is no distortion heard in either the K3 Monitor or in my nearby
IC-7800 receiver. If you are only getting 4 watts output average then
something is very wrong. Perhaps you can describe your setup for us. I
assume you completed all the calibration procedures, transmitter gain
calibration, etc.?
What you describe is certainly not normal from what I am measuring with my
K3 and watt meter set-up.
Best 73,
Frank - W6NEK
K3 #312
----- Original Message -----
From: "mark roz" <[EMAIL PROTECTED]>
To: "Elecraft" <elecraft@mailman.qth.net>
Sent: Monday, February 04, 2008 1:23 PM
Subject: [Elecraft] K3 SSB average power output
With SSB mic level adjusted to the max level (ALC to
the max)the average power measured on external meter
is only 4 Watts with distorted audio (power output set
at 110W). If I use external compressor the average
power is still only 4 Watts. This is done with CMP
gain at zero. This is not normal. Contest or ESSB guys
will not like that.
With K3 compression to the max average power is about
8 Watts.
K3 is a great radio but not in the transmit SSB mode.
If Mic gain is adjusted properly so there is no
distortion than the average power is even lower.
I'm sure that this could be improved in firmware.
If not than K3 would not be that good in the contest
and Dx -ing on SSB
Anybody has the same experience?
I remember that Toby from Bavarian DX Club and some
other guy was talking about SSB audio.
I'm not complaining but I would like to have SSB
signal comparable to radios like TS850, Ft1000D and so
on.
I hope that Elecraft will put this on their agenda.
Beside that, K3 is superb TRX-the best.
Mark
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