General Research of Electronics Inc 0716 用户手册
Connecting an Optional External Antenna
The antenna connector on your scanner makes it easy to use the
scanner with a variety of antennas, such as an external mobile
antenna or outdoor base station antenna.
scanner with a variety of antennas, such as an external mobile
antenna or outdoor base station antenna.
Always use 50-ohm coaxial cable, such as RG-58 or RG-8 low-
loss dielectric coaxial cable. For lengths over 50 feet, use RG-8
low-loss dielectric coaxial cable. If the antenna cables connector
does not have a BNC connector, you will also need a BNC
adapter.
loss dielectric coaxial cable. For lengths over 50 feet, use RG-8
low-loss dielectric coaxial cable. If the antenna cables connector
does not have a BNC connector, you will also need a BNC
adapter.
Follow the installation instructions supplied with the antenna,
route the antenna cable to the scanner, then connect it to the
antenna jack.
route the antenna cable to the scanner, then connect it to the
antenna jack.
WARNING:
Use extreme caution when installing or removing an outdoor
antenna. If the antenna starts to fall, let it go! It could contact
overhead power lines. If the antenna touches a power line,
touching the antenna, mast, cable, or guy wires can cause
electrocution and death. Call the power company to remove the
antenna. DO NOT attempt to do so yourself.
antenna. If the antenna starts to fall, let it go! It could contact
overhead power lines. If the antenna touches a power line,
touching the antenna, mast, cable, or guy wires can cause
electrocution and death. Call the power company to remove the
antenna. DO NOT attempt to do so yourself.
Turn the radio on
Rotate the top knob of the VOLUME/SQUELCH control
clockwise to turn the radio on. Set both the VOLUME and
SQUELCH knobs at their mid-point (12 oclock) position.
clockwise to turn the radio on. Set both the VOLUME and
SQUELCH knobs at their mid-point (12 oclock) position.
NOTE:
While 12 o clock is a good squelch setting to start with, it may cause
your radio to miss some calls with weak signals. You will probably
want to optimize the squelch setting to set it close to threshold. To
optimize the squelch setting to be close to the best threshold, press
your radio to miss some calls with weak signals. You will probably
want to optimize the squelch setting to set it close to threshold. To
optimize the squelch setting to be close to the best threshold, press
TUNE
, then rotate the squelch control counterclockwise until a
rushing sound is heard from the speaker. Rotate the squelch control
clockwise just past the point where the rushing sound stops. The
squelch is now set to the optimum point. Please note the position of
the squelch control for future reference. Once the squelch setting is
complete, you may press
clockwise just past the point where the rushing sound stops. The
squelch is now set to the optimum point. Please note the position of
the squelch control for future reference. Once the squelch setting is
complete, you may press
PGM
to exit TUNE mode.
0716 User Manual
Page 32