Midland Radio 40 Channel CB Radio with 4-Watt Output Power Manuale Utente

1. If you have not determined whether your vehicle has a negative or positive ground, 

do so now. Then disconnect the negative lead from the battery to prevent short 
circuits that can occur during wiring. Do not connect this transceiver to positive 
ground electrical systems.

2. With negative ground

A. Connect the positive (RED WIRE with in-line fuse holder) to either the (a) fuse 

block, (b) cigarette lighter, or (c) directly to the positive post on your battery. 
Usually, the fuse block is the most convenient connecting point. It is also 
possible to connect to the Accessory terminal on the fuse block or ignition switch, 
so that your CB automatically turns off when the ignition turns off.

B. Tightly connect the ground (BLACK WIRE) directly to the vehicle’s metal frame.  A 

good direct metal-to-metal ground is essential for optimum performance. 
Installations using the cigarette lighter socket for power require an extra ground 
wire from the radio chassis to the vehicle if the radio is not fastened to a 
grounded part of the vehicle.

Mounting holes are provided on the microphone hanger bracket. The bracket can be 

attached to the vehicle dash, the holes provided on the left side of the radio, or other 
convenient location.

You can choose from two types of mobile CB antennas: full-length whip and loaded 

whip - and a variety of mounts (depending on where you locate your antenna). The 
dealer who sold you your Midland CB can advise which type is best for you.

Some general rules for antenna location that can aid CB performance:
1. Put your mount as high on the vehicle as possible. 

The higher the proportion of antenna length that is above the roof, the better.

2. If possible, mount the antenna in the center of whatever surface you choose.
3. Keep antenna cables away from noise sources, such as the ignition system, gauges, 

etc.

4. Make sure you have a solid metal-to-metal ground.
5. Exercise care to prevent cable damage.

Essentially, you have five location choices: the roof, gutter, rear deck, front cowl or 

rear bumper.  Where you decide to locate your antenna will determine the type of 
antenna you install.  Consult your Midland CB dealer for advice and guidance, and 
measure your needs against the attributes of the various Midland antenna models 
available.