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2-2-7, GOING ON THE AIR WITH THE 44
Everything should be in proper working order at this point. There are however 2 last readjustments that need to be done
before you connect the antenna.
2-2-7-1, BIAS ADJUSTMENT
Set up and turn on the 44 in the safe mode. Allow at least 15 minutes for everything to come up to temperature.
•
Insure the RF LEVEL is set to zero.
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Turn the FUNCTION control to CW. You should see plate current on the plate current monitor meter.
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Adjust the BIAS ADJUST for 100ma of plate current.
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Return to the safe mode.
2-2-7-2, PA OUTPUT FINAL ADJUSTMENT
As stated before, the HT-44 is capable of much more than 130 watts output. However, the audio circuits were not
designed to drive the system at higher power levels.
Set up and turn on the 44 in the safe mode. Allow at least 15 minutes for everything to come up to temperature.
•
Tune up on 14.25MHz in CW mode.
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Connect the microphone patch cable.
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Set Operation control to USB.
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Set MIC GAIN to maximum.
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Set the audio oscillator to 1000Hz @ 3mv output.
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Key the mic.
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Adjust T2 for 130watts output.
That’s it, get on the air and have some fun.
