Lee (and others)
It is normal for the power control circuits to be reset after a band
change. That prevents overshoot if you are driving an amplifier.
Normally the power will come up to the requested power level in a couple
dot times on CW, or several syllables when operating voice.
If the problem is on voice or data, make sure you are driving the audio
sufficiently. If you are not driving the K3 audio hard enough, power
control will be "flaky".
For Voice: With the compression set to zero, you should produce 5 to 7
bars on the ALC meter. After adjusting the mic gain for that
indication, increase the compression as you choose - normally I would
suggest compression of less than 10dB.
For RTTY, if you are using FSK D mode, the power control should be
automatic, but if you are using AFSK A (or other soundcard data modes),
then do check your audio drive - of course compression should be set to
zero, but the audio drive should drive the ALC meter to 4 bars solid
with the 5th bar flashing.
Note that the K3 controls power differently than other transceivers.
Ignore the advice on the internet to show no ALC and adjust the power
with the audio level.
With the K3 (and K3S, KX3, KX2), the "ALC" meter is a combination "VU"
meter and ALC meter. The 1st 4 bars are there to help you adjust the
audio level. The onset of ALC is indicated by the 5th bar. So 4 bars
solid and 5th bar flickering is the "no ALC" point for the K3.
In data modes, adjust the power with the Power knob, not the audio level.
73,
Don W3FPR
On 7/17/2016 8:38 AM, Leroy Buller wrote:
Operated RTTY NAQP this weekend. When changing bands, I noticed my power
would drop to 40 watts or so. After several transmissions, it would rise
to 100 watts. I don't think this is normal. All antennas are matched.
Comments?
______________________________________________________________
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
