Unable to resolve apparent S-meter noise level on K3 with AGC on

[Lance Wilson]

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[Julian, G4ILO]

Have you tried adjusting AGC THR? Increasing the level increases the point at which AGC starts to operate and should stop weak signals being reduced to the level of noise.

It's puzzling that the S-meter decreases when AGC is off but I think that is normal. My K3 does the same, but the audio out increases dramatically when AGC is off so it is working, it is only the meter that is affected.

[Laurent F6DEX]

I confirm this behavior (apparent high level of noise) but I am afraid it is not an issue of the K3 but an issued of the other radios while most other radios are inaccurate. K3's smeter is accurate and shows the reality. You may eventualy calibrate the smeter (especially Offset) but switching OFF AGC does not solve the problem.

Laurent F6DEX

[Lance Wilson]

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[Lance Wilson]

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[Laurent F6DEX]

Lance,

Yes, switching OFF the AGC does lower smeter reading: I also confirm but HERE by one or two units only maximum but it it also lowers reading for all values of incoming signal and S9 becomes S8/S7... (here).

I think if I recalibrate with AGC OFF, I will have same readings.

Yours may be different.

73, Laurent

[Lance Wilson]

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[Laurent F6DEX]

Lance,

Something I forgot. If your smeter is calibrated with preamp OFF (as required), set CONFIG: SMTR MD = ABS so you have same reading with PRE ON. Eventually, this may help...

73, Laurent

[Lance Wilson]

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