John,
The KX3 (or the K3 or K2) will not control its power output properly
unless you drive the audio sufficiently.
The "ALC meter" on the K3 and KX3 is a combination of an audio level
meter and ALC meter. Below 5 bars indicated is really the 'no ALC'
range. So adjust the soundcard audio and/or the KX3 mic gain to produce
4 bars on the ALC meter.
After doing that, adjust to the desired power with the power knob.
Remember that the KX3 will attempt to maintain the power level
requested, so if your audio level is too low, the power control will
become erratic and creep up and down. What I am saying is that
attempting to control the power output with the audio level will not
result in proper operation.
73,
Don W3FPR
On 3/2/2015 12:44 AM, John wrote:
Is it safe to say my very low input audio level was compensated by the
KX3's power control loop to yield 5 watts out (the actual radio power
setting)?
It's hard to shake my Icom digital interface habits.
Thanks.
John, kx4o
On 3/2/2015 12:34 AM, [email protected] wrote:
John,
The manual states that you should keep the ALC bars in the not
to exceed 5 range. This keeps distortion down. Power is controlled by
other means. As the radio is not rated for 100% duty cycle for 10
Watts, I would recommend that you stay under 4 Watts for the digital
modes if running barefoot.
73,
Barry
K3NDM
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