return c
class db_tv_rx(db_base.db_base):
- def __init__(self, usrp, which, first_IF, second_IF):
+ def __init__(self, usrp, which, first_IF, second_IF, inverted):
"""
Control Microtune 4937 based USRP daughterboard.
self._second_IF = second_IF
self._reference_divisor = 640
self._fast_tuning = False
- self._inverted = False # FIXME get rid of this
+ self._inverted = inverted
- g = self.gain_range() # initialize gain
- self.set_gain(float(g[0]+g[1]) / 2)
+ g = self.gain_range()
+ self.set_gain(float(g[0]+g[1]) / 2) # default gain is halfscale
self.bypass_adc_buffers(False)
# With MT4937DI5-3x7702 with second downconversion
db_instantiator.add(usrp_dbid.TV_RX,
- lambda usrp, which : (db_tv_rx(usrp, which, 43.75e6, 5.75e6),))
+ lambda usrp, which : (db_tv_rx(usrp, which, 43.75e6, 5.75e6, False),))
# With MT4937DI5-3x8680, and 3x8769 without second downconversion
db_instantiator.add(usrp_dbid.TV_RX_REV_2,
- lambda usrp, which : (db_tv_rx(usrp, which, 44e6, 20e6),))
+ lambda usrp, which : (db_tv_rx(usrp, which, 44e6, 44e6, True),))
# With MT4937DI5-3x7901 without second downconversion, basically the same as tvrx2
db_instantiator.add(usrp_dbid.TV_RX_REV_3,
- lambda usrp, which : (db_tv_rx(usrp, which, 44e6, 20e6),))
+ lambda usrp, which : (db_tv_rx(usrp, which, 44e6, 44e6, True),))