def channel_down_relative(self):
"""
Decreases the output frequency to the next low channel/special channel
based on the current country settings
"""
Instrument.write(self, "SOUR:CHAN:REL DOWN")
def channel_up_relative(self):
"""
Increases the output frequency to the next higher channel/special channel
based on the current country settings
"""
Instrument.write(self, "SOUR:CHAN:REL UP")
