Controls and functions, Pro 640xl front panel – Uniden PRO 640XL User Manual
Page 4
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
Controls and Functions
13.
VOLUME CONTHOL — Rotate clockwise to turn radio on and to increase
volume.
14.
SWR KEY — Press to read the Standing Wave Ratio of your antenna. The
SWR LED wtil light when the 5WR key is pressed.
15.
HI CUT KEY — Press to reduce the high frequency response of the receiver.
This key can be used to help eliminate the hiss and pop of weak signal reception.
16.
PA KEY — Press this switch to the Pub lie Address mode when an external PA
speaker is connected. When the PA mode is selected, the CB radio will be dis
abled. Adjust the PA output level by rotating the mic gain control.
17.
AM/USB/LSB Switch — This switch selects the operating mode of either
Amplitude Modulation, Upper Sideband, or Lower Sideband.
® ® 0 ®
(1^
(Q>
@ @ @ @
Pro 640XL Front Panel