On Sun, Dec 21, 2008 at 09:09:53AM -0800, Yabo Li wrote:
> Hi Eric,
>
> Thanks. So the USRP2 can not adjust hardware gain, right? But I found
> that the "set_tx_gain" is provided in the lib. Doesn't it work or not?
>
> Yabo
/*!
* Set transmitter gain
*/
bool set_tx_gain(double gain);
//! return minimum Tx gain
double tx_gain_min();
//! return maximum Tx gain
double tx_gain_max();
//! return Tx gain db_per_step
double tx_gain_db_per_step();
It may be possible for a daughterboard to provide transmit gain
adjustment. IIRC, at this time none of them do. In any event,
tx_gain_min() and tx_gain_max() will return sensible answers.
If tx_gain_min() and tx_gain_max() return the same value, then
there's only a single valid value that you can pass to set_tx_gain.
Eric
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
