MIDLAND 248XL - Manual (Page 12)

4
REAR PANEL
19. Antenna connector (SO239 connector type).
20. S.Meter jack: it allows an external “s meter” connection.
21. “PA” jack: by connecting with an external loudspeaker, you can use the unit
as an audio-amplifier.
22. ”EXT” jack: external loudspeaker jack (the internal loudspeaker is exclu-
ded).
23. Power 12.6 Vdc: power supply cable.
MICROPHONE
1. PTT: transmission button
2. UP/DOWN buttons: manual channel selector
3. 6 pin microphone connector
INSTALLATION
Safety and convenience are the primary consideration for mounting any
piece of mobile equipment. All controls must be readily available to the ope-
rator without interfering with the movements necessary for safe operation of
the vehicle. Set the proper position in the car to install the transceiver using
the supplied supporting bracket or eventually the slide bracket. Tighten the
retaining screws. The fixing bracket must be close to metallic parts.
POWER SUPPLY
Be sure the transceiver is off. In the direct-voltage power supply, to observe
the polarity is very important, even if the unit is protected against the acci-
dental inversion:
Red = positive pole (+)
Black = negative pole (-)
The same colors are present on the battery and in the fuse box of the car.
Connect correctly the cable terminal to the battery.
ATTENTION
To obtain best performances we recommend to install the radio in a place
with enough air circulation.
INSTALLING AN ANTENNA
1. Place the antenna as high as possible.
2. The longer is the antenna, the better will be the performance.
3. If possible, mount the antenna in the center of whatever surface you choo-
se.
4. Keep the antenna cable away from noise sources, such as the ignition
switch, gauges,etc.
5. Make sure you have a solid metal-to-metal ground connection.
6. Prevent cable damage during antenna installation.
WARNING. to avoid damage, never operate your CB radio without connec-
ting a proper antenna. A periodical control of the SWR is recommended.
19 20 21 22
23
ANTENNA
S-METER PA EXT