I'm on the track now
Thanks Alexandur,
Patrik
----- Original Message -----
From: Patrik Tast
To: Discuss-gnuradio@gnu.org
Sent: Friday, June 24, 2011 19:38
Subject: Re: [Discuss-gnuradio] TVRX Microtune 4702 (4937) Gain question
Just to clarify,
I am not talking about setting the gain in software, spectrum plot gain for
example.
I'm talking about the hardware gain setting controlled via I2C
Patrik
----- Original Message -----
From: Alexandru Csete
To: Patrik Tast
Cc: Discuss-gnuradio@gnu.org
Sent: Friday, June 24, 2011 19:14
Subject: Re: [Discuss-gnuradio] TVRX Microtune 4702 (4937) Gain question
On Fri, Jun 24, 2011 at 5:45 PM, Patrik Tast <pat...@poes-weather.com> wrote:
Hi All,
I can not see in source code where GR is setting the TVRXx gain. I'm
referring to
gnuradio-core/src/lib/io/microtune.cc
I'm don't think that code is related to TVRX. For old non-uhd driver you need
to look in the usrp/host/lib/ directory.
If so (not set), what does it default to, max? See page 12 and forward. The
tuner document can be found at
http://www.poes-weather.com/~patrik/usrp/4937-DI5-3x8899-2.pdf
In db_tv_rx.cc constructor, line 101, the gain is initialized to middle.
The gain ranges are also available via the API and you can see many of the
examples also initialize the gain to middle value.
Alex
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