K3 power control

[wayne burdick]

I'm reviewing the discussion on this topic and will be working on a
near-term beta firmware release to improve SSB ALC behavior, etc. I
might have field-test firmware available with some changes as early as
tomorrow, and I'd be happy to send it directly to anyone in the mood to
experiment. Please e-mail me directly if you're interested (n6kr at
elecraft dot com).

Meanwhile: Please be sure you have done the transmit gain calibration
at both 5 and 50 W. In SSB mode, adjust the MIC control such that the
ALC meter scale peaks at 5 to 7 bars on normal speech, and set the PWR
control such that voice peaks don't go beyond the target level.

73,
Wayne
N6KR

---

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[Julian, G4ILO]

wayne burdick wrote

I'm reviewing the discussion on this topic and will be working on a
near-term beta firmware release to improve SSB ALC behavior, etc. I
might have field-test firmware available with some changes as early as
tomorrow, and I'd be happy to send it directly to anyone in the mood to
experiment. Please e-mail me directly if you're interested (n6kr at
elecraft dot com).

Meanwhile: Please be sure you have done the transmit gain calibration
at both 5 and 50 W. In SSB mode, adjust the MIC control such that the
ALC meter scale peaks at 5 to 7 bars on normal speech, and set the PWR
control such that voice peaks don't go beyond the target level.

What is the advice for setting the level for data modes? At the moment I have to set the input so that the first bar of "ALC" barely flickers on if I am to limit the output to what I have set with the power control. Following the previous advice by Lyle of setting it so that 4 or 5 bars are showing steady, I get nearly double the requested output on a pure tone. The calibration is perfect on CW.

[Trevor Smithers]

Yes, I'd be interested in the recommended Data mode settings as well please.

I'm seeing the same symptoms as outlined by Julian, G4ILO and first reported it to
Elecraft Support on 15 September, just after 2.38/1.90 was released. There was no
problem with the production release prior to that - 2.02/1.70.

Trevor  G0KTN
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