Dave,
This is a classic case with Elecraft transceivers that do not drive the
audio sufficiently. Unless you drive the audio as instructed in the
manual, the power output will be erratic or non-existent.
When you speak into the microphone, do you see 5 to 7 bars on the ALC
meter? If not, you do not have adequate audio drive, increase the mic
gain until that condition is realized.
If you have a Heil HC6 or HC7 mic element, those have very low output
levels and you may need to go to the MIC Gain High range.
Note that the high range only applies to the front panel mic jack. Go
to the K3 menu for MIC SEL and tap "3" to toggle the setting on/off.
The high gain mic preamp is indicated by the icon "H'" in the display.
73,
Don W3FPR
On 1/21/2017 10:20 PM, Dave Fugleberg wrote:
I seldom operate 80M phone, so don't know if this is a new issue or not. K3
S/N 8334 with latest firmware. When I key the transmitter and speak or
whistle into the mic, I get no RF output. I can hear myself in the monitor.
If I enable VOX, speaking engages the transmitter, but no RF output.
Engaging the TUNE function does produce RF output as expected.
If I switch the mode to CW and tap the straight key, the radio transmits
with expected output. If I THEN switch mode back to LSB, radio functions
normally with expected output.
Note that all of the above is with radio connected to a dummy load, so my
antenna is out of the picture.
Once I switch to CW, key the radio, and switch back to LSB as described
above, transmit works fine until I power cycle the radio, or adjust the RF
Power control (even if I just dial it down a couple watts and then right
back to where it was). Either of those two events appears to disable SSB
transmit until I 'kick' it by transmitting with CW.
As far as I can tell, this behavior is ONLY on 80M. The rig is NOT in 'Test
mode', and Xmit Inhibit is turned off in the menu. All other radio
functions and bands seem to work FB.
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