Forum: GNU Radio How to switch off the Automatic Digital-Gain-Control?

Posted by Andis Dembovskis (Guest)
on 2012-11-26 12:49
(Received via mailing list)
Hello, dear Developer-Team,
I recently came across to situation, when I have to model 2 overlapping
signals within the same frequency but different power levels. I wanted 
to
use variable IQ-envelope size for that - one signal with level of 0.2 
and
another with 0.6. The max sum of 0.8 would be still fitting the allowed 
DAC
amplitude of my USRP_N210.
BUT there seems to be some Automatic Gain Control for the digital 
signal.
Independent if I set amplitude of my digital signal to 0.2 or 0.6, the
measured output in DB is the same.
How is it possible to switch that function off?
With the "self.uhd_usrp_sink_0.set_gain(5, 0)" I can do only the analog
output gain control.

Hope somebody have the solution,
With best regards,
Andis
Posted by Andis Dembovskis (Guest)
on 2012-12-07 11:00
(Received via mailing list)
Hello,
Does somebody have the answer for the question above? Please :)
BR,
Andis

p.s. wish everybody also a nice Advent time.

2012/11/26 Andis Dembovskis <andis.dembovskis@gmail.com>
Posted by Matt Ettus (Guest)
on 2012-12-07 17:49
(Received via mailing list)
Which daughterboard are you using?

Matt


On Mon, Nov 26, 2012 at 3:48 AM, Andis Dembovskis <
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