SBX daughterboard transmitter gain is always 31.5db

[gokseluctu]

I am trying to send OFDM packets by using my UsrpN200 device with SBX daughterboard as a transmitter. But I can't set the gain parameter. It is always 31.5 db. Changing the gain parameter does not change RSSI value. What can be the possible problems ? Here is the part that i set gain in my code:

self.set_freq(self._tx_freq)
self.u.set_gain(self._gain,0)
self.u.set_antenna("TX/RX", 0)
print "Gain: ", self.u.get_gain()

I always see "Gain:31.5db" in command line.

Thanks.

[ErikL]

Hello!  Great question. This forum is focused mainly on LabVIEW users using USRP.

Please post this support question to the USRP Users forum and I'm sure they'll have some recommendations.

http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com

Cheers,

Erik