RFX900 and automatic gain control

Hi there,

Does the RFX900 have an AGC algorithm that it automatically applies? Or
does the host machine have to implement an algorithm via the
write_aux_dac command?

Thanks,

Harvind Samra

Harvind Samra wrote:

Hi there,

Does the RFX900 have an AGC algorithm that it automatically applies? Or
does the host machine have to implement an algorithm via the
write_aux_dac command?

As shipped, the RFX-series does gain control via software using the
set_gain() command, which uses write_aux_dac at a lower level. You
don’t need to call write_aux_dac directly.

On the 900, 1200, 1800, and 2400 you can set up the boards to do AGC
automatically by analog means, but this requires moving around a couple
of resistors. The RFX400 does not have this capability.

Matt

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