Midland Radio CB1 CB TRANSCEIVER User Manual

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Date Submitted	2011-03-17 00:00:00
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CB-1
40 Channel CB radio with RF Gain
Owner’s Manual
www.midlandradio.com
www.midlandradio.com
Index
Welcome to the World of Midland Electronics������������������������������������������������������������������ 3
How to install your Midland mobile CB.............................................................................. 3
Installation and Operating Accessories.............................................................................. 4
Where to Locate your CB Transceiver............................................................................... 4
Mechanical Mounting......................................................................................................... 4
Power Wiring (negative ground only)................................................................................. 5
Installation of Microphone Hanger..................................................................................... 5
Antenna:
Selection........................................................................................................................ 5
Installation...................................................................................................................... 6
Tuning............................................................................................................................ 6
Range............................................................................................................................ 6
Noise.................................................................................................................................. 6
Front Panel Controls.......................................................................................................... 8
Back Panel......................................................................................................................... 8
Transceiver Operation........................................................................................................ 9
Technical Specifications................................................................................................... 10
Service..............................................................................................................................11
www.midlandradio.com
Welcome to the World of Midland Electronics
Congratulations on your purchase of a state-of-the-art mobile CB radio. In the years
ahead, you can expect to realize time and again why Midland holds the front running
position among CB users everywhere. You will come to know that Midland power is
more than just a slogan, but the heading of long list of benefits. As your Midland CB
experience unfolds and grows, we hope you will remember that CB is only one kind
of electronic excellence available under the Midland name.
Your 40 channel CB represents the state of the art in high tech engineering. The unit
incorporates microprocessor controlled PLL circuitry for precise tuning.
How to Install your Midland Mobile CB
This transceiver may be installed in any 12-volt negative ground-system car or truck.
Most 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.
www.midlandradio.com
Installation and Operating Accessories:
1.
2.
3.
4.
5.
6.
Easy removal mounting bracket system.
Microphone bracket system.
All main-unit and microphone mounting hardware needed for normal installation.
Plug-in microphone with coil cord.
FCC part 95, Subpart D.
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,
supplemental restraint systems (air bags) 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.
Mechanical Mounting:
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 hole locations.
2. Drill a 1/8” hole for each screw hole in the mounting bracket. Attach the bracket to
the dash with the Phillips head sheet metal screws provided.
Extreme care should be exercised when drilling into the dash to avoid
damage to under-dash electronic ignition, cruise control, instrument and /
or accessory wiring.
3. Position the main unit between the bracket arms in line with the retention knobs. Set
the angle for optimum operating, comfort and accessibility.
4. Tighten the retention knobs.
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Power Wiring (negative ground only):
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) the one 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 goes off when the ignition goes 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.
Installation of Microphone Hanger:
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.
Antenna:
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.
*Where you locate your antenna does make a difference.*
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
they carry.
www.midlandradio.com
Antenna Installation:
Follow the manufacturer’s installation instructions carefully.
Warning: Never operate your CB radio without attaching an antenna or with a broken
antenna cable. This will result in damage to transmitter circuitry.
Safety notice: The antenna used for this radio must be installed to provide a
separation distance of at least 8 in. (20cm) from all persons and must not be
co-located or operating in conjunction with any other antenna or transmitter.
Tuning Your Antenna:
Some antennas are factory tuned. However, performance can usually be improved by
slightly lengthening or shortening the antenna using a Standing Wave Radio (SWR)
meter. For the exact procedures to be used, refer to the antenna manufacturer’s
installation manual.
You can buy an SWR meter separately or have your antenna checked by your Midland
CB Dealer’s service department.
Factors affecting CB range:
Essentially, they are the same influences that optimize or limit AM and FM broadcast
signals.
Terrain: Hills, valleys and buildings naturally interrupt and shorten CB signals. In short,
anything that is between you and the person you want to talk to can shorten your CB
range. You can expect to maintain maximum transmitting/receiving performance in
flat, open country.
Weather: You can expect that CB range will be reduced – perhaps drastically – in times
of atmospheric disturbance, such as in a thunderstorm or heavy snow. Sunspots too
are known to adversely affect CB performance.
Noise:
A common source of excessive noise is the ignition system. In many vehicles today the
electric fuel pump is another possible source of noise. If you suspect this is true, turn
off the ignition. With the CB in receive mode if the noise is no longer present then
this is the source of the noise. In some cases the noise can be reduced or eliminated
by making sure the CB radio chassis is grounded. This is in addition to the power
cord. In extreme cases, additional grounding of components may be necessary.
www.midlandradio.com
Operating Controls:
CB/PA
Switch
Normal /
CH9
Switch
Locking
Mic
Connector
TX
Indicator
Digital
Channel
Indicator
RF Gain
Knob
Squelch
Knob
Channel
Select Buttons
Volume
Knob
Microphone Connector: Plug in the supplied microphone to this connector.
Received signals will not be heard without the microphone.
ON/OFF Volume Knob: In the off position your transceiver power is off. Turn this
control clockwise to switch on the unit and adjust the volume.
Channel Buttons: This easy-to-operate control allows changing of CB channels, either
up or down.
Squelch Control: Adjust this control until background noise just disappears. If the
control is adjusted too far clockwise it may cause muting of weaker signals.
Channel Indicator: The LED displays the channel number.
TX LED: Indicator shows the unit is transmitting.
PA/CB Switch: When in PA mode, it causes your voice to operate the optional external
PA speaker. In CB mode, the microphone operates the transmitter.
Channel 9/Normal Switch: Allows you listen to emergency channel 9.
www.midlandradio.com
Back Panel:
Antenna
Connector
PA
Jack
EXT
Speaker
Jack
13.8VDC
Power
Cord
Antenna Connector: Connect a standard 50-ohm CB antenna to this connector.
External Speaker Jack: When a speaker is connected to this jack, the internal speaker
is by-passed. All received signals will be heard through the external speaker. The
speaker connected to the “EXT” jack should be rated at 8 ohms and 5 watts.
PA Jack: An optional PA speaker may be attached to your transceiver through the PA
output jack on the back panel. This allows you to communicate with pedestrians or
other vehicles through your CB microphone. The speaker connected to the “PA” jack
should be rated at 8 ohms and 5 watts.
DC 13.8V POWER Cord: Connects to power cord with in line 2 amp fuse.
How To Operate your Transceiver:
You should become familiar with the controls and complete the preceding installation
instructions before attempting to operate your CB.
1. Rotate the on/off volume control clockwise to turn the unit on.
2. Adjust the squelch control fully counter-clockwise so noise is heard.
3. Adjust the volume for a normal listening level.
4. Rotate the squelch control until the noise just disappears.
5. Select the desired channel.
6. To transmit, press the PTT bar on the side of the microphone. Hold the microphone
2 to 3 inches from your mouth and speak in a normal voice.
7. To receive, simply release the PTT bar.
Warning: Do not attempt to make any internal adjustments. Internal adjustments
and/or modifications can lead to illegal operation as defined by the FCC rules and
regulations, Part 95. They must be made only by qualified technical personnel.
Illegal operation can lead to serious consequences.
www.midlandradio.com
Technical Specifications:
General
Frequency Range................................................................................. 26.965-27.405 MHz
Channels.......................................................................................................................... 40
Modulation Type..............................................................................................................AM
Antenna Impedance......................................................................................................50 Ω
Loudspeaker...................................................................................................................8 Ω
Microphone................................................................................................. 1000 Ω Electret
Power Supply............................................................................13.8 VDC negative ground
Size............................................................................... 4-7/8” (W) x 6-1/2” (D) x 1-1/2” (H)
Unit Weight...........................................................................................................1 lb. 10 oz
Receiver (CB, 26.965-27.405 MHz,)
Sensitivity at 10dB S/N...............................................................................................0.7 µV
Selectivity..................................................................................................... 45dB + 10 kHz
Squelch Range............................................................................................ 0.5 µV - 500 µV
Audio Output Power..............................................................3.0 W @ 8 Ω (10% distortion)
Distortion at 1000 mV...................................................................................................... 3%
Audio Frequency response..............................................................................400-2400 Hz
Intermediate Frequency.......................................................1st: 10.695 MHz 2nd: 455 kHz
Spurious Response...................................................................................................> 45dB
Transmitter
RF Output Power........................................................................................................4.0 W
Frequency Tolerance................................................................................................ 0.005%
Harmonic Suppression.............................................................................................> 60 dB
Modulation...................................................................................................AM 90% (± 5%)
www.midlandradio.com
Service:
If it ever becomes necessary to return your unit for service:
Pack the unit in its original box and packing, improper packing may result in damage
during shipment. Be sure to remove the microphone from the radio before packing.
Include a full description of any problems. Include a daytime telephone number in the
event we need more information.
You do not need to return accessory items (brackets, screws, power cord, antenna,
etc.) unless they may be directly related to the problem.
Include a photocopy of the bill of sale or other proof of purchase showing the date of
sale (credit card statements are not acceptable). This information must be included
before warranty service can be considered.
A flat rate charge of $45 will apply to radios not covered by the Warranty. Master Card,
Visa, Cashier’s Check or Money Order will be accepted for payment only. Personal
checks will not be accepted and will delay the repair of your radio until we receive
payment by approved methods.
Midland Radio Corporation
Hereby certifies that this unit has
been designed, manufactured,
FCC type accepted and certified
in accordance with Part 95 and
Part 15, Subpart C of the current
FCC rules and regulations as of
the date of manufacture.
10
www.midlandradio.com
Limited Warranty:
Midland Radio Corporation will repair or replace, at its option without charge this model
CB1 Citizens Band transceiver that fails due to a defect in material or workmanship
within Three years following the initial consumer purchase.
This warranty does not include any accessories, which may be a part of or included
with the warranted product, or the cost of labor for removal or re-installation of the
product in a vehicle or other mounting.
Performance of any obligation under this warranty may be obtained by returning the
warranted product, freight prepaid, along with proof of purchase date, to Midland
Radio Corporation , Warranty Service Department, 5900 Parretta Drive, Kansas City,
Missouri 64120, or to any “Midland Authorized Warranty Service Station,” or to the
place of purchase (if a participating dealer). This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.
Note: The above warranty applies only to merchandise purchased in the United States
of America or any of the territories or possessions thereof, or from a U.S. Military exchange. For warranty coverage on merchandise purchased elsewhere, consult the
supplemental warranty information included with this product or ask your dealer.
MIDLAND RADIO CORPORATION
5900 Parretta Drive
Kansas City, MO 64120
Phone 816-241-8500
E-mail: mail@midlandradio.com
www.midlandradio.com
Printed in Thailand
www.midlandradio.com
11

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