Major M580 Manuel d'instruction - Page 6

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DC POWER CONNECTIONS

The transceiver is designed to operate

from a battery source of 13.8 volts DC,

in vehicles [or boats] employing either

negative or positive ground electrical

system.

The fused DC power cable sup-

plied is used to make the necessary power

connection to the transceiver. The red

[fused] lead is connected to the positive

[+] side of the electrical system in the

vehicle, and the black lead is connected

to the negative [— ] side of the system.

In a negative ground vehicle: Connect

the red lead to the "hot" point in the

electrical system [battery positive] , and

the black lead to the metal firewall or

any other point that is connected to the

vehicle chassis [battery negative] .

In a positive ground vehicle: Connect the

black lead to the "hot" point in the

electrical system [battery negative] , and

the red lead to the metal firewall or any

other point that is connected to the

vehicle chassis [battery positive] .

A suitable point in the vehicle for con

nection to the "hot" battery side can

usually be found on the fuse block. Since

the transceiver draws a maximum of only

1.6 amperes of current, you can use a

terminal which supplies power to the

car radio or other accessory [use the un-

fused input side sińce the DC power cable

is equipped with its own fuse] . Tо sim-

plify connection to this terminal, attach

an alligator [spring] clip to the power

CB ANTENNAS

The results obtained with your trans

ceiver will be greatly determined by the

efficiency of the antenna system used.

Due to the complexity of the subject, it is

not with in the scope of this manuał to

OPERATION INSTRUCTIONS

Make sure the transceiver is properly

lead first and then clamp it onto the

terminal selected.

nection to this point will ensure that DC

power to the transceiver is automatically

eut off when the vehicle ignition is turned

off.

ANTENNA CONNECTION

The lead-in cable from the CB antenna

should be terminated with a PL-259 type

male connector. Attach to the matching

antenna input connector at the rear of

the transceiver.

RG-58/U cable is generally used to con

nect the CB antenna to the transceiver.

The cable should be terminated with a

PL-259 connector for connection to the

antenna input on the transceiver.

In a base station installation, an excep-

tionally long lead-in cable may be re-

quired. When lengths of over 50 feet [15

meters] are necessary, RG-8/U coaxial

cable is more suitable than RG-58/U

since it offers lower loss.

MICROPHONE BRACKET

This small size of the transceiver prohibits

mounting a microphone bracket directly

to the chassis. We recommend, therefore,

that the microphone bracket be attached

to the dashboard of the vehicle or in any

other convenient location. If one desires

to do this with ou t drilling holes, a magne-

tic mounting plate may be used and the

microphone bracket attached to it.

provide detailed information on antenna

Systems.

We suggest that you purchase

one of the numerous books available

which covers this subject in greater detail.

installed as indicated proviously, and that

Note that the con