KX2 tx low power on 80M SSB

[Dave Jones-2]

Hello all I wonder if anyone has come across this problem that I have with my
KX2. After initial turn on or after changing bands to 80M the tx power output is
2W if the power setting is 10W or above. If I keep talking into the mic (MH3)
and pressing and releasing the PTT then the power will gradually increase to the
correct level. If the power is set to any thing below 10W then the power output
level is correct.

The CW power output on CW is not affected at all and if I enable the CW on SSB
feature not only does that give the correct carrier power output but the SSB
power level is also correct after a brief press on the key. Once this has been
done the power output is correct until the radio is turned off and then back on
or the band is changed to another band and then back to 80M.

80M is the only band affected, all other bands give the correct output.
Hopefully someone is able to help me with this problem.

Thank you Dave VK4FD

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[Nate Jedinak]

Dave,

I have that exact problem with my KX2 on 10m.  See my recent thread here: https://www.mail-archive.com/elecraft@.../msg247537.html

Elecraft support said that situation is indicative of a failure in the output stage, and my KX2 is currently back at elecraft for repair. I sent it back in early March.  I will update my reflector thread with the outcome of the repair, so watch this list for details.

I never use 80 on that radio, so I’m not sure if the issue existed there, unfortunately.

Nate W1NAT

Sent from my iPhone

> On Mar 20, 2021, at 6:10 AM, Dave Jones <[hidden email]> wrote:
>
> Hello all I wonder if anyone has come across this problem that I have with my KX2. After initial turn on or after changing bands to 80M the tx power output is 2W if the power setting is 10W or above. If I keep talking into the mic (MH3) and pressing and releasing the PTT then the power will gradually increase to the correct level. If the power is set to any thing below 10W then the power output level is correct.
>
> The CW power output on CW is not affected at all and if I enable the CW on SSB feature not only does that give the correct carrier power output but the SSB power level is also correct after a brief press on the key. Once this has been done the power output is correct until the radio is turned off and then back on or the band is changed to another band and then back to 80M.
>
> 80M is the only band affected, all other bands give the correct output. Hopefully someone is able to help me with this problem.
>
> Thank you Dave VK4FD
>
> ______________________________________________________________
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>
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> Please help support this email list: http://www.qsl.net/donate.html
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