Sony UWP-C1/C2 Operating Instructions Manual page 19

A RF (radio frequency) indications
The number of dots indicates the RF
input level.
B AF (audio frequency) indication
Appears whenever the output audio
signal is stronger than the reference
level.
C GP (group)/CH (channel)
indication
Shows the reception channel group
and channel number. Each time you
press the SET button, the channel
indication changes as follows.
For details, see "Settings" on page
28.
Reception
channel
group and
number
Reception
frequency
4 + (+ selection) / – (– selection/
reset) buttons
Press these buttons to set the reception
channel and frequency.
Press
the
SET
button.
19