The AGC is by default in manual mode when using GNU Radio. GNU Radio doesn't expose (gr-uhd) the AGC function Marcus referred to. If you want to use AGC in GNU Radio, you'll have to extend the source code a bit. See this answer to a similar question I asked: https://lists.gnu.org/archive/html/discuss-gnuradio/2017-10/msg00112.html
On Tue, Feb 20, 2018 at 8:08 PM Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > On 02/20/2018 11:35 AM, Cho, Daniel J (332C) via USRP-users wrote: > > Hello – > > > > I have a few questions regarding the usrpb200mini. > > > > Does it have an AGC? > > When setting the gain manually through GNUradio, does that bypass the AGC > or will the AGC kick in when it senses a low powered signal. > > What is the relationship between the manual gain set through GNUradio and > the usrp’s AGC? > > > > Thanks > > You can set the gain control to use AGC If it is manual mode, it is in > manual mode, there is no AGC action. > > See here: > > https://files.ettus.com/manual/classuhd_1_1usrp_1_1multi__usrp.html#abdab1f6c3775a9071b15c9805f866486 > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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