K3 AGC Design Question

[Don Rasmussen]

Question please - is the hardware AGC preceeding the
DSP active only in excessive signal scenerios to keep
the DSP from becoming overloaded, or can the hardware
AGC be activated at normal signal levels by the K3
firmware to work in conjunction with the AGC algorithm
in the DSP stage?
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[KK7P]

> Question please - is the hardware AGC preceeding the
> DSP active only in excessive signal scenerios to keep
> the DSP from becoming overloaded

Delete the word "only" and change DSP to ADC you've got that part
correctly understood :-)  It is used to protect the IF Analog to Digital
converter from over ranging under extreme signal conditions.

> or can the hardware
> AGC be activated at normal signal levels by the K3
> firmware to work in conjunction with the AGC algorithm
> in the DSP stage?

The DSP can intervene when appropriate.

73,

Lyle KK7P

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