Ron,
With all due respect, this 40-watt power loss is noted in a watt meter
connected directly to the ANT1 output on my K3, and then directly to a
300-watt dummy load. There is nothing else in between to cause a power
drop. Where else would you recommend I look for the source of my
problem, if not in the transceiver itself?
40 watts may only be about 1/3 of an S-unit, but that isn't the point.
The point is that my rig is not performing as it should. I would like to
fix the issue, in the most cost- and time-effective manner possible. If
there are tests I can run to help isolate the problem, I'm open to
suggestions.
Thank you.
--Ian
Ian Kahn, KM4IK
Roswell, GA EM74ua
km4ik....@gmail.com
K3 #281, P3 #688
HRD v5.x/6.0 Test Team
On 12/22/2012 6:13 PM, Ron D'Eau Claire wrote:
And you'll likely find the cause of your "low signal strength" is somewhere
else, since 60 watts is only 2 dB - about 1/3 of an S-unit - below 100
watts.
That difference is not usually detectable on HF given normal variations in
propagation that go on constantly.
73 Ron AC7AC
-----Original Message-----
Have you run "Calibrate Transmitter Gain" using the K3 Utility from
Elecraft? Just follow the instructions carefully and it's very simple and
fast. There are two levels to run, 5 and 50 watts if I remember correctly.
You will get a report at the end and can watch the progress on you K3
display.
God Bless & 73!
Jack - WE5ST
________________________________
From: Ian Kahn <km4ik....@gmail.com>
To: elecraft@mailman.qth.net
Sent: Saturday, December 22, 2012 3:25 PM
Subject: [Elecraft] New Output Power Issue
All,
Lately I've been receiving sporadic reports of low signal strength on my K3,
s/n 288. So, today I put a meter on it and ran an FSK signal at 100 watts
into a dummy load. To my amazing surprise, the meter only read about
60 watts out. I just upgraded last night to the latest firmware version
(MCU 4.60, FPF 1.15, DSP 2.80), What should I begin looking at or adjusting
to find the source of this issue? Any and all assistance is greatly
appreciated.
Thanks, 73, and Merry Christmas.
-- Ian
Ian Kahn, KM4IK
Roswell, GA EM74ua
km4ik....@gmail.com
K3 #281, P3 #688
HRD v5.x/6.0 Test Team
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