Re: [Discuss-gnuradio] DBSRx set gain code

2005-12-22 Thread Matt Ettus
Lee Patton wrote: > > After looking at the data sheets for all components on the DBSRX, I > gather that the RF LNA and IF low-pass filter gain control, both of > which are in the MAX2118, are the two variable gain amps to which you > are referring. Is that correct? Yes > daughterboard gain (79dB

Re: [Discuss-gnuradio] DBSRx set gain code

2005-12-22 Thread Lee Patton
On Wed, 2005-12-21 at 23:02 -0800, Matt Ettus wrote: > Lee Patton wrote: > > I don't understand why the gain range returned by the DBSRx ranges from > > 0 to 104 when the PGA gives only 0 to 20 dB. Obviously, the answer lies > > in db_dbs_rx.py, but I haven't a clue as to what the code is really >

Re: [Discuss-gnuradio] DBSRx set gain code

2005-12-21 Thread Matt Ettus
Lee Patton wrote: > I don't understand why the gain range returned by the DBSRx ranges from > 0 to 104 when the PGA gives only 0 to 20 dB. Obviously, the answer lies > in db_dbs_rx.py, but I haven't a clue as to what the code is really > doing. Can anyone (Eric) explain? I read about Registers 2

[Discuss-gnuradio] DBSRx set gain code

2005-12-12 Thread Lee Patton
I don't understand why the gain range returned by the DBSRx ranges from 0 to 104 when the PGA gives only 0 to 20 dB. Obviously, the answer lies in db_dbs_rx.py, but I haven't a clue as to what the code is really doing. Can anyone (Eric) explain? I read about Registers 2/3 in the AD9862 data shee