Sony UPW-C1/C2 - Manual (Page 28)

Parts Identification
28
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 CH (channel) indication
Shows the reception channel. Each
time you press the SET button, the
channel indication changes as follows.
For details, see “Settings” on page
37.
4 + (+ selection) / – (– selection/
reset) buttons
Press these buttons to set the reception
channel and frequency.
Reception
channel
Reception
frequency
Press
the
SET
button.
The channel/frequency indications for
U66 model are shown.