Midland Radio 77-120ESP User Manual

Owner’s Manual 77-120 ESP

Owner’s Manual 77-120ESP

http://www.midlandradio.com

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Owner’s Manual 77-120 ESP

Table of Contents

I. Introduction

II.

III. Check the requirements for your vehicle before you begin installation
IV.
V.
VI. Mechanical Mounting
VII. Power wiring (negative ground only)
VIII.
IX.

X. Antenna

How to install your Midland mobile CB

Installation and operating accessories furnished with your Midland CB
Where to locate your CB transceiver

Mounting the main unit
Installation of microphone hanger

a. How to select, position install and tune the right one for you?
b. Where you locate your antenna does make a difference.
c. Antenna Installation
d. Tuning your antenna

XI. Function & Location of Controls

a. Front Panel Controls
b. Microphone Connector
c. ON/OFF Volume
d. MIC Gain
e. Squelch Control
f. RF Gain Control
g. Rotary Channel Selector
h. Channel Display
i. Frequency Display
j. TX Indicator
k. WX Indicator
l. ESP Indicator
m. S/RF Display
n. CB/WX
o. CH.9 Switch
p. ESP
q. FRQ

XII. Back Panel

a. Antenna Connector
b. S-Meter Jack
c. EXT Speaker Jack

XIII. How to operate your Transceiver for CB Use.

XIV. How to operate your transceiver for weather receive

XV. How ESP2 works

XVI. Technical Data

XVII. Warranty

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Owner’s Manual 77-120 ESP

Introduction -

Your 40 channel CB represents the state of the art in high tech engineering. This
unit is not only a full feature CB transceiver but incorporates a high performance
10 channel NOAA weather bureau VHF receiver. The full 10-channel weather
receiver allows use on all current and future NOAA weather bureau channels
plus Canadian and international channels. The unit incorporates microprocessor
controlled PLL circuitry for precise tuning and increased function. Receiver noise
and interference can now be largely eliminated by the new ESP2™ noise
reduction system. Also included is a backlighted Liquid Crystal Display (LCD)
digital information center that out-dates CB’s with LED readouts.

How to install your Midland mobile CB?

This transceiver may be installed in any 12 volt negative ground-system
car or truck. Almost all current U.S. and foreign vehicles use a negative system,
but some older models and some newer large trucks may have a positive
ground.

Check the requirements for your vehicle before you begin installation.

Generally, you have a negative-ground system if the minus ( - ) battery
terminal is connected to the motor block. Contact your dealer in the event you
are unable to determine your vehicle’s polarity system.

Installation and operating accessories furnished with your Midland CB

1. Easy removal mounting bracket system.

2. Microphone bracket system.

3. All main-unit and microphone mounting hardware needed for normal
installation.

4. Plug-in microphone with coil cord.

5. FCC part 95, Subpart D.

6. Owner’s Manual.

Where to locate your CB transceiver

.

Your new Midland CB is designed to be installed under the dash or
vertically on a console of your vehicle. Safety and convenience are the primary
considerations in deciding exactly where to locate your radio.
Caution: Be sure that the unit is located so that it does not interfere with the
driver or impair access to any controls. Connecting cables must be routed and
secured in such a manner as not to interfere with the operation of the brake,
accelerator or other controls. Interference from either the unit or connecting
cables may contribute to the loss of control of the vehicle.

:

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Owner’s Manual 77-120 ESP

Mechanical mounting

Note: Extreme care should be exercised when drilling into dash to avoid damage

to under-dash electronic ignition, cruise control, instrument and / or accessory
wiring. Your unit must be mounted so as not to interfere with air bag (SRS)
operation.

Step 1: Heeding the caution, use the mounting bracket as a template for marking
the location of screw holes under the dash. Use an awl, nail or other sharp
pointed object to mark the metal.

Step 2: Drill a 1/8” hole for each screw hole in the mounting bracket. Attach the
bracket to the dash with the 3/8” Phillips machine screws provided.
.

Step 3: Locate and secure the radio into the mounting bracket allowing working
space for later power connections.

Power wiring (negative ground only).

Step 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.

Step 2: With negative ground, connect the red wire (the one with in-line fuse
holder) to either the ( a ) fuse block radio circuit (filtered), ( b ) cigarette lighter
(unfiltered for noise), 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, so that your CB
automatically goes off when the ignition goes off, preventing accidental battery
drainage.)

Note: In many new vehicles the only circuit that has noise filtering is the radio
circuit. Then tightly connect the 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.

Step 3: Plug - in the power cord to the receptacle provided on the back of the
transceiver.

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