Major M-360 Instruction Manual

M-360

INSTRUCTION MANUAL

AM / FM / SSB

120 CHANNEL

DIGITAL PLL SYNTHESIZED

TRANSCIEVER

Sensitivity

· [AM] 1 µV at 10dB S/N

· [FM] 0.5 µV at 20 dB S/N

· [SSB] 0.5 µV at 10 dB S/N

Spurious rejection ratio: 40dB

Squelch Sensitivity at

Maximum [AM/FM]: 300 µV

Squelch Sensitivity at

Maximum [SSB] 300 µV

Squelch Sensitivity at

Threshold [AM/FM]: 1 µV

Squelch Sensitivity at

Threshold [SSB]: 0.7 µV

A.G.C. (As measured to

EIA specs): 70 dB

IF response at 6 dB down

bandwidth [AM/FM]: 6 kHz

IF response at 6 dB down

bandwidth [SSB]: 2 kHz

Adjacent Channel

Selectivity: 40 dB

Adjacent Channel

Selectivity: 40 dB

Frequency Stability: ±0.005%

Audio Output Power at

Maximum [8 Ohm]: 4W

Audio Output Power at

10% distortion [8 Ohm]: 3W

Audio Fidelity at

3,000 Hz: -15 dB

S-Meter Sensitivity for S-9: 100µV

Current Drain at no signal: 350 mA

Current Drain at Maximum

Audio Output: 1500mA

Receiver

Specifications

RF Output Power at 13.8V DC

[SSB] 20W PEP nominal
[AM/FM] 10W nominal

Modulation Capability

[AM]: 100% Down

Frequency Stability: ±0.005%

SSB Generation: Double balanced

Modulator with
Crystal lattice filter

Carrier Suppression [SSB]: 40dB down

Unwanted Sideband

Suppression [SSB]: 60dB down

Harmonic Suppression: 60dB down

FM Deviation with 20 mV

1260 Hz audio: 1.5 kHz

Current Drain at no

Modulation: 1850 mA [AM]

800 mA [SSB]

Current Drain at Maximum

Modulation: 2.4 A [AM]

Transmitter

- 1 -

Microphone wiring

Microphone connection for Major M360 (Viewed from Solder Side of the plug)

TX

Transmit

RX

Receive

COM

Common

/ Screen

AUD

Mic. Audio

Installation Instructions

- 2 -

This transceiver is designed for 12 volt DC operation with either a negative or positive ground system. In
order to install the radio, it is important to know whether your vehicle has a positive or negative ground
system. Connecting the radio incorrectly will damage it.

Vehicle's Electrical System

We suggest that you check with qualified technician and find out if your make and model vehicle uses a
positive ground or negative ground system.

Location

Mount the radio so that all controls are within easy reach of the operator. Avoid mounting it directly in
front of air conditioning or heater ducts. Be sure it does not interfere with the operation of the vehicle, or
any equipment in the vehicle. Your CB Radio could be installed inside your glove compartment if desired.
Most often, CB equipment is mounted under the dash within easy reach of the driver. If under-the-dash
mounting is impractical, consider mounting the unit on the transmission hump in the centre of the
floorboard. Disconnecting the battery will prevent short-circuits, blown fuses, and other potential hazards
and inconveniences. Reconnect the battery only after the radio and antenna have been installed and all
electrical connections completed.

Mounting The Radio

Locate the mounting bracket and hardware furnished with the radio. Remove the bracket from the unit,
and hold the bracket up to the mounting location you have selected. Take a soft lead pencil and draw an
outline of the entire bracket, including the holes for drilling, on the place it is to be mounted. Do not drill
any holes yet. Before you drill, look behind the place that you have chosen to mount your unit to make
sure that there are no wires or other items that can be damaged by the drill bit. Drilling without a
thorough check can result in damage to the electrical system or other parts of your car or truck.

If the area is clear, take a centre punch and make a small indentation in each of the places marked for
drilling. Using the centre punch first will keep the drill from sliding and damaging the upholstery or
surface of the dash.

Use a #30 (1/8 inch) drill bit for the self threading screws. Wrap tape around the bit about one inch from
the point. The tape will prevent the bit from entering too far into the hole and damaging objects behind
the hole. Place the drill bit in the indentations made by the centre punch and drill slowly, being careful
not to damage the surface or make the hole larger than necessary. Protect your eyes with goggles. If you
are drilling through heavy upholstery or carpeting, mark an 'X' exactly at the spot for the hole. Cut the
upholstery or carpeting material alongthe lines of the X with a sharp knife. Peel the corner back so that
while you are drilling, the drill does not catch on the material and unravel it. Once you have drilled the
necessary holes, use the hardware to mount the bracket firmly to the mounting location, then install the
radio in the bracket. Mount the microphone holder to the radio's mounting bracket or to the dash. Before
drilling a mounting hole, be certain that the area behind the mounting position is free of wires and
equipment.

Connecting to a Negative Ground System

Follow these instructions if you are certain that your vehicle has a negative ground system. Connect the
negative (black or green) wire to a screw or bolt on the metal frame supporting the instrument panel, or
to any metal point that is part of the vehicle's metal structure. Remove any paint or coating from under
the screw or bolt to ensure good electrical contact.

If you want your radio to operate at all times without having the ignition switch turned on, connect the
positive (red) wire to the INTERIOR LAMP terminal on the vehicle's fuse panel. If you want your radio to
operate only when the ignition switch is turned on, connect the positive (red) wire to the RADIO terminal
on the vehicle's fuse panel.

Do not turn on the CB radio until the antenna is connected. If you attempt to transmit without the

antenna connected, you risk burning out the unit's power transistors.