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Re: [Discuss-gnuradio] Problems attenuating in software - solution?
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] Problems attenuating in software - solution? |
Date: |
Sat, 24 Feb 2007 16:35:43 -0800 |
User-agent: |
Mutt/1.5.9i |
On Sat, Feb 24, 2007 at 03:33:34PM -0800, Dan Halperin wrote:
> Dan Halperin wrote:
> >Eric Blossom wrote:
> >
> >>Dan, how are you controlling the receiver h/w gain?
> >>
> >.. uh? Are there controls for that? Are there examples where they are used?
>
> Again, what controls are there for controlling the receiver h/w gain? I
> only see the set_pga() function in usrp_basic.cc.
>
> -Dan
Actually, you want to be using u.subdev.set_gain(...).
It's a higher-level interface that knowns how do deal with the
concatenation of the PGA in the AD9862 and any daughterboard specific
gain that may be controlable.
Eric