+ expert_grp.add_option("", "--rx-freq", type="eng_float", default=None,
+ help="set Rx frequency to FREQ [default=%default]", metavar="FREQ")
+ expert_grp.add_option("", "--tx-freq", type="eng_float", default=None,
+ help="set transmit frequency to FREQ [default=%default]", metavar="FREQ")