page 3 RITRON, INC. 1-800-USA-1-USA (1-800-872-1872)
For assistance, call
800-USA-1-USA
(800-872-1872)
or visit our web site at
www.ritron.com
page
8
TO ADJUST RECEIVER SQUELCH SENSITIVITY
JBS/ PBS/ SBS Series base stations can be adjusted for
squelch sensitivity to reduce distant "co-channel" or other
interference on channels not programmed with Quiet Call.
You can also adjust the squelch sensitivity to prevent hearing
messages from a distant radio group using the same
frequency and QC code as your group.
1. Put the radio in Program/ Readout Mode; see FIG-3,
page 4.
2. Enter an "8" by pressing the PTT eight (8) times
without pausing.
3. Press the PTT to enter a single digit factor from "1" to
"3". Press it the number of times equal to the factor.
The higher the number, the more interference will be
reduced and the stronger the incoming radio signal
must be to be heard.
1 =
maximum sensitivity (factory setting)
2 =
reduced sensitivity
3 =
minimum sensitivity
4. Press and release On/ Volume Up to save the change.
NOTE: The adjust receiver squelch sensitivity feature is for
user convenience. To prevent interference, Ritron
recommends programming a different Quiet Call code
into the channel.
PROGRAMMING
!! CAUTIONS — ALL RADIOS !!
OBSERVE CAUTION IN THE FOLLOWING
ENVIRONMENTS TO MAXIMIZE THE LIFE OF YOUR
RADIO EQUIPMENT:
LOCATION: Be aware that this radio and/ or antenna may create
interference with, or be interfered with, by nearby electronic
equipment such as computers, monitors, keyboards, electronic
telephones and other sensitive devices. Either move the
equipment or use a remote antenna to separate components
sufficiently to stop or reduce interference.
MOISTURE: JBS PBS/ SBS Series radios are not waterproof. DO
NOT directly expose them to rain or excessive moisture.
CHEMICALS: Detergents, alcohol, aerosol sprays or petroleum
products can damage the radio case. DO NOT use petroleum
solvents of any kind; use a soft cloth moistened with water to
clean the case.
EXTREME HEAT: High temperatures can damage the radio and
its components. DO NOT expose the units to extreme heat or
leave them in direct sunlight.
VIBRATION/ SHOCK: Although your JBS/ PBS/ SBS Series radio
is designed to be rugged, it will not survive abuse. DO NOT drop
the radio.
