Keith,
Have you adjusted your audio input to produce 4 bars solid on the ALC
meter with the 5th bar flashing?
If not, please do so - you can do that with the K3 in TX TEST mode so no
signal is transmitted.
After you set the audio level correctly, then adjust the power knob to
the desired power level.
I know this is different than the normal way other transceivers are
driven for data modes, but the K3 controls power differently than other
transceivers and the audio level must first be set as indicated and the
power controlled with the power knob.
73,
Don W3FPR
On 1/30/2014 3:37 PM, Keith Onishi wrote:
Output power of my K3/100, SN 79xx, without KAT3 is very unstable in DATA A
mode. The symptom is;
1. With setting 100W output on 14MHz and 10MHz, I get 100W output for a couple
of seconds, then suddenly the output goes down to 10W or so.
2. On 7MHz and below, the output power never go up to 100W with setting 100W
output.
3. With setting around 20W output, actual output sometimes stay around 10W.
Upon holding TUNE button a couple of seconds, the output goes up to desired
level.
I guessed this might be caused by RF interfere. However, checking with dummy
road gave the same results.
These happen only in DATA A mode (I have not tried in AFSK A mode).
I got stable 100W and a little up in FSK D and PSK D as well as CW. (I have not
tried SSB yet.)
I manually made Transmitter Gain calibration without error since K3Utility
calibration capability does not work with K3 with 60m disabled for Japan use.
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