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1. ANL Switch - You can select the
Automatic Noise Limiter to help
reduce harsh background noise
caused by a variety of interference
sources.
2. TX LED - An LED lights to indicate
when the radio is transmitting.
3. S/RF Meter - This LED meter shows
the relative strength of the received
signal or the RF output.
4. Channel Indicator - Displays the
channel currently in use.
5. Channel Selector - This switch
selects the desired channel for
transmission and reception. All
channels, except channel 9, may be
used for communications between
stations operating under different
license. Channel 9 has been
reserved by the FCC for emergency
communications involving the
immediate safety of individuals or
the immediate protection of
property. Channel 9 also may be
used to render assistance to a
motorist. This is a FCC rule and
applies to all operators of
CB radios.
6. Squelch - The squelch control is
used to eliminate background noise
during the absence of a
transmission. Turn the control fully
counterclockwise, then slowly rotate
it back clockwise until the noise
disappears. At this setting any
transmission must be slightly
stronger than the background noise
to “Break Squelch” or to be heard.
Further clockwise rotation will
increase the threshold at which a
signal will be heard.You can select
any level to “Break Squelch.”
7. Volume Control - Rotate clockwise
to turn the radio on and to increase
the volume.
8. Microphone Jack - The operational
mode of the CB is controlled by the
push-to-talk switch on the
microphone. Press the switch to
activate the transmitter and disable
the receiver. Release the switch
to enable the receiver and disable
the transmitter. When transmitting,
hold the microphone about 2 inches
from your mouth and speak clearly
in a normal voice. The microphone
included with the PRO 510
XL is
detachable electret type.
Antenna Connector - This female
connector permits connection of the
transmission line cable male connector
(PL-259) to the transceiver.
CONTROLS AN
PRO510 om.qxd 11/19/99 3:58 PM Page 4