Uniden GRANT User Manual

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GRANT 40 Channel AM/SSB

Mobile CB Radio

OWNERS MANUAL

INTRODUCTION

UNIDEN CORPORATION OF AMERICA has combined superb workmanship and modern styling with the very latest state-of-art circuitry to bring you the GRANT Citizens Band Trasnceiver. It has been especially designed to give you maximum performance and reliability. Your GRANT is completely factory aligned and quality assurance tested.

To obtain the maximum benefit and pleasure from your GRANT, please read very carefully the contents of this manual before attempting to install or operate the transceiver.

WARNING

The Citizens Band (CB) Radio Service is under the jurisdiction of the Federal Communications Commission (F.C.C.). Any adjustments or alterations which would alter the performance of the transceiver's original F.C.C. Type Acceptance or which would change the frequency determining method are strictly prohibited. Replacement or substitution of Crystals, Transistors, 1C,

Regulator Diodes or any other part of a unique nature, with parts other than

those recommended by us, may cause violation of the technical regulations of

Part 95 of the F.C.C. Rules or violation of Type Acceptance requirements of Part 2 of the Rules.

ELIMINATION OF LICENSING

The Federal Communications Commission (F.C.C.) has ruled that Citizens Band (CB) Radio Service operators no longer are required to obtain an F.C.C. license to operate their CB equipment. In doing so, the F.C.C. also decided to permit CB station operation without station identification.

Elimination of individual station licenses results in no lessening of the operating privileges or responsibilities of CB users. An operator of a CB radio station is still required to comply with the Communications Act and with the rules of CB Radio Service.

- 1 -

INSTALLATION

MOBILE STATION INSTALLATION

Plan the location of the transceiver and microphone bracket before starting the installation. Select a location that is convenient for opwration and does not interfere with the driver or passenger in the vehicle. The radio should be securely fastened to some solid face, using the mounting bracket and self-tapping screws which are provided,

MOBILE STATION ANTENNA

Since the maximum allowable power output of the transmitter is limited by the F.C.C., the antenna is a very important factor affecting transmission distance. It is for this reason that we strongly recommend that you install only a quality antenna in your new citizens band system. You have just purchased a superior transceiver. Don't diminish its performance by installing an inferior antenna.

Only a properly matched antenna system will allow maximum power transfer from the 50-ohm transmission line to the radiating element. Your UNIDEN dealer is qualified to assist you in the selection of the proper antenna to meet your applica tion requirements.

For automobile installation, the whip antenna may be used with good effect. The

most efficient and practical installation is a full quarter wave whip antenna mounted on the rear deck or fender top midway between the rear window and bumper.

A short "loaded" whip antenna is more convenient to install on you automobile, although the efficiency is less than a full quarter wave whip antenna.

For marine installation, consult your dealer for information regarding an adequate

grounding system and prevention of electrolysis between fittings the hull and water.

GROUND INFRMATION

Most newer U.S. and foreign made cars and small trucks use a negative ground system, while some older cars and some newer large trucks may use a positive ground system.

A negative ground system is generally identified by the (-) battery terminal being connected to the vehicle motor block, but if you cannot determine the polarity system of your vehicle, it is suggested that you consult your vehicle dealer for definite information.

POWER CORD CONNECTION: NEGATIVE GROUND SYSTEM

If you are operating on a negative ground system, connect the red DC power cord

from the transceiver to the positive, or (-r), battery terminal or other convenient

point and connect the black power lead to the chassis or vehicle frame, or (-) battery

terminal.

- 2 -

POWER CORD CONNECTION: POSITIVE GROUND SYSTEM

If you are operating on a positive ground system, connect the black DC power cord from the transceiver to the negative, or {-), battery terminal or other convenient point, and connect the red power lead to the chassis or vehicle frame, or (+) battery terminal.

MOTE: With regard to the connection of the power cords, it may be possible or desirable to connect the (red lead for negative ground system) or (black lead for positive ground system) to the ignition switch accessory terminal so that the transceiver is automatically turned off when the ignition switch (key) is turned off. Alternately, the power lead may be connected to an available terminal on the fuse block or even to a point in the wiring harness. Care must be taken, however, to guard against a short circuit condition. When in doubt, please contact your vehicle dealer

for specific information for your vehicle.

BASE STATION OPERATION

To operate the transceiver from your home or office, using regular house current as the power source, you will require a separate power supply capable of supplying 3 amps at a 13,8V DC output with a nominal input voltage of 12D volts AC, 50/60Hz. Simply connect the red (+) and black (-) leads of the transceiver to the correspond

ing DC terminals of the power supply.

NOTE; Do not attempt to operate this transceiver by connecting directly to 117V

AC, When an AC power supply is used with the transceiver for base station operation any Citizens Band beam, dipole, ground plane or vertical antenna may be used. A ground plane vertical antenna will provide the most uniform horizontal coverage.

- 3-

OPERATING PROCEDURE

TO RECEIVE:

The GRANT operates on 40 AM channels, 40 Upper Side Band channels and 40

Lower Side Band channels.

When you receive the SSB signal in the proper mode (USB or LSB), audio sound may be either too high pitched or low pitched, indicating that your receiver may not be tuned to the exact same frequency as the transmitter to which it is listening. The GRANT is equipped with a Clarifier. By tuning the Clarifier, you can slightly change the frequency of the receiver so you get a normal tone.

1. Place the PA switch in CB function — by turning SQUELCH control clockwise,

past click.

2. Turn the set on by turning the VOLUME CONTROL clockwise, past click, NOTE : Microphone must be plugged in for receiver to operate.

3. Set the VOLUME CONTROL to a comfortable level.

4. Set the Mode Selector Switch to the desired mode.

5. Listen to the background noise from the speaker. Turn the SQUELCH CQNTROL

slowly clockwise, until the noise just disappears. The Squelch is now properly adjusted. The receiver will remain quiet until a signal is received. Do not advance the control too far, or some of the weaker signals will not be heard.

6. Set the Channel Selector to the desired channel,

7. Adjust the CLARIFIER to clearly receive SSB or AM signals.

TO TRANSMIT;

CAUTION

The transceiver Voltage Standing Wave Ratio (V.S.W.R.) measurement must be performed prior to the use of the transmitter. A.V.S.W.R. ratio in excess of 2:1 may damage the transmitter.

1. Be sure the operator has read and understands part 95, F.C.C. Rules and Regula

tions prior to operating the transmitter.

2. Select the desired channel.

3. If the channel is clear, depress the push-to-talk switch on the microphone and

speak in a normal voice.

_ 4 _

CONTROLS AND THEIR FUNCTIONS

1. OFF/ON VOLUME: To turn the transceiver on, rotate this control clockwise past click. To turn the transceiver off, rotate the control counterclockwise past click. Rotate the control clockwise for a comfortable audio level.

2. SQUELCH: The Squelch control is normally set to a position which eliminates undesired background noise with no signal present. With the audio adjusted to a satisfactory level, rotate the Squelch control clockwise to the point where the sound from the speaker is cut off. In this position, there will be no sound from the speaker until a signal is received. In order to hear weak signals, it may be necessary to rotate the Squelch control counterclockwise, allowing some back ground noise to be heard.

3. PA SWITCH {on SQUELCH control); Full counterclockwise rotation of the squelch control engages the PA function. The PA function should not be used unless an external speaker is connected. In the squelch (or CB) position, the PA function is disabled and the radio will transmit and receive on the selected channel.

4. MODE SELECTOR: This switch selects AM, USB, or LSB mode of operation. This selector changes the mode of operation of both transmitter and receiver

simultaneously. Set the selector to the mode on which you wish to com municate.

- 5 -

5. MIC GAIN: This control is used to adjust, as required, microphone input

sensitivity for optimum amount of modulation in transmit. UNI DEN CORPO

RATION OF AMERICA citizen's band transceivers have been designed to permit the user to attain levels of modulation up to 100% depending on the setting of the microphone gain control, using the microphone provided with the unit,

UNIDEN's automatic compression and peak limiting circuits assure maximum modulation with minimum distortion.

6. RF GAIN: This control is used primarily to optimize reception in strong signal

areas. Gain is reduced by counterclockwise rotation of the control.

7. CLARIFIER: The clarifier control is normally set to the center position. This feature has several uses and can greatly enhance receiver operation. First, if a received signal is slightly off frequency, this control can be operated as required to optimize the receiver frequency. The effectiveness of this clarifier features under these conditions can be observed either by listening for a more readable signal at the speaker or by noting the S-meter reading when the clarifier control

is operated. Another effective application of this control is in eliminating

adjacent channel interference from strong signals. Operate this control, as

required, to obtain minimum adjacent channel interference.

8. METER MODE SWITCH: S/RF Position: Meter indicates relative transmitter output power vi^en transmit-

ing, input signal strength when receiving.

MOD Position: Meter indicates average percentage of modulation.

9. NB/ANL SWITCH: When the switch is placed in the NB/ANL position, both of

RF Noise Blanker and Automatic Noise Limiter circuits are activated. The NB is

very effective for repetitive impulse noise such as ignition noise. The ANL reduces most undesirable interference noises,

10, DIMMER SWITCH: This switch is used to adjust the brightness of the LED

channel display and the meter. DIM position reduces brightness,

11, СНЭ SWITCH; This switch is for use when emergency communication is needed

on the emergency channel, CH9. Pressing the CH9 switch activates CH9 regard

less of the position of the channel selector switch. When СНЭ switch is pressed,

the channel display is blanked and the CH9 indicator is activated.

12, MOD—S/RF METER: This meter displays relative transmitter RF output power

and percentage of modulation when transmitting, as well as input signal strength when receiving. The meter is illuminated when power is on, the illumination can be adjusted by the DIMMER Switch for optimum brightness.

- 6 -

13. CHANNEL INDICATOR: Light Emitting Diode(LED) indicates the channel

number in use.

14. CHANNEL SELECTOR KNOB; This knob selects the desired channel for transmission and reception. Al( channels, except channel 9, may be used for communications between stations. Channel 9 has been reserwed by the F.C.C. for emergency communications involving the immediate safety of individuals or immediate protection of property. Channel 9 also may be used to render assistance to a motorist. This is an F.C.C. rule and applies to all operators of

citizens band radios.

15. CH9 INDICATOR : Lights to show that the CH9 Switch has been activated.

16. TX/RX INDICATOR: This indicator lights red when the transmitter is in opera tion and lights green when the receiver is in operation.

RADIO BACK PANEL CONNECTORS

17, ANTENNA CONNECTOR: This female connector permits connection of the

transmission line cable male connector (PL-259) to the transceiver.

18. PUBLIC ADDRESS SPEAKER JACK; An external 8 ohm 4-watt speaker must be connected to the PA SP jack located on the rear panel when the transceiver is used as a public address system. The speaker should be directed away from the microphone to prevent acoustic feedback. Physical separation or isolation of the microphone and speaker is important when operating the PA at high output levels.

- 7 ~

19, EXTERNAL SPEAKER JACK: The External Speaker Jack is used for remote

receiver monitoring. The external speaker should have 8 ohm impedance and be rated to handle at least 4.0 watts. When the external speaker is plugged in, the internal speaker is automatically disconnected.

20. POWER JACK: This jack permits connection of the D.C. power to the trans ceiver. A power cord ts supplied with the radio.

- 8 -

GENERAL F.C.C. Type Number Channels Frequency Range Frequency Control Frequency Tolerance Frequency Stability Operating Temperature Range Microphone

Input Voltage

Current Drain

Cabinet Dimensions Weight Antenna Connector Semiconductors

Meter

Indicators

SPECIFICATIONS

1005002

40AM, 40LSB, 40USB 26,965 to 27.405 MHz Phase Locked Loop(PLL) synthesized circuitry.

0.005%

0.001%

-20'Cto +50°C Plug-in type; dynamic with push-to-talk switch

and coiled cord.

13,8V DC nominal, 15.9V max., 11,7V min. {positive or negative ground).

Transmit: AM full mod., 3A maximum.

SSB, 12 watts PEP output, 3A maximum.

Receiver: squelched; 0.5A, maximum audio

output 1A.

7-7/8"(W) x 2-3/8"(H) x 9-1/4"(D) 5 pounds UHF, SO-239

44 transistors, 3 field effect transistors, 6 inte grated circuits, 62 diodes and 3 light emitting diodes.

Illuminated; indicates relative RF power output

and modulation on Transmit, received signal strength,

LED display; channel, emergency channel and

TX/RX.

TRANSMITTER Power Output

Modulation

Intermodulation Distortion

SSB Carrier Suppression Unwanted Sideband

AM, 4 watts SSB, 12 watts, P.E.P.

High and low level Class B, Amplitude Modula tion.

SSB; 3rd and 5th order, more than -25 dB.

7th and 9th order, more than -35 dB. More than -45 dB. More than -45 dB,

-9-

Frequency Response

Output Impedance SSB Filter

RECEIVER

Sensitivity

Selectivity Cross Modulation

Image Rejection l.F. Frequency

AM and SSB RF Gain Control Automatic Gain Control

Squelch

Noise Blanker Clarifier Range Audio Output Power Frequency Response Distortion Built-in Speaker External Speaker (Not Supplied)

AM and SSB: 350 to 2500 Hz. 52 ohms, unbalanced.

7.8 MHz, crystal lattice type 6 dB @2.2 kHz 60 dB @4.6 kHz

SSB: Less than 0.25 fA/ for 10 dB

(S-rN)/N at greater than % watt of radio output.

AM: Less than 0.5 pV for 10 dB.

(S+N)/N at greater than Ys watt of audio output.

SSB 6 dB @2.2 kHz, AM 6 dB @7.5 kHz.

More than 55 dB. More than 60 dB, AM: 455 kHz SSB; 7.8 MHz Adjustable for optimum signal reception.

(AGC): Less than 10 dB change in audio out

put for inputs from 10 to 500,000 pV.

Adjustable; threshold less than 0.5 pV,

R F type, effective on AM and SSB.

±1.25 kHz.

3.5 watts minimum into 8 ohms. 350 to 2500 Hz.

Less than 10% at 3 watts output. 8 ohms, round. 8 ohms; disables internal speaker when con

nected.

PA SYSTEM Power Output External Speaker for PA

3,5 watts into external speaker, 8 ohms (not supplied).

- 10 -

SERVICING YOUR TRANSCEIVER

The technical information, diagrams and charts will be supplied upon request. It is the user's responsibility to see that this radio is operating at all times in accordance with the F.C.C. Citizens Radio Service regulations. We highly recommend that you consult a qualified radiotelephone technician for the servicing and alignment of this CB radio product.

Please refer to the WARNING information contained in the 1st page of this Owner's Manual.

(NOTE: When ordering parts, it is essential to specify the correct model number and serial number of the unit.)

MAINTENANCE AND ADJUSTMENT

This transceiver is especially designed for the environment encouuntered in mobile installations. The use of all solid state circuitry and its light weight result in high reliability. Should failure occur, however, replace parts only with identical parts. Do not substitute.

PREVENTIVE MAINTENANCE

At six to twelve month intervals, the following system checks should be made:

1. Check Standing Wave Ratio (SWR).

2. Inspect all electrical connections to ensure that they are tight.

3. Inspect antenna coaxial cable for wear or breaks on shielding.

4. Inspect all screws and other mounting hardware for tightness.

ADJUSTMENT

This transceiver is factory aligned and should not require any adjustment when used with a 52 ohm antenna. If an antenna other than 52 ohm impedance is used, adjustment of the transmitter output circuit may be made to obtain optimum power transfer to the antenna. This adjustment should be made only by a licensed techni cian using a high quality in-line RF wattmeter which will not produce standing waves when inserted in the antenna cable.

- 11 -

OPERATOR TROUBLESHOOTING

Should be unit malfunction or not perform properly, the operator should perform the procedures indicated below:

1. If the transceiver is completely inoperative. * Check the power cord and fuse.

2. If trouble is experienced with receiving. * Check ON/OFF VOLUME CONTROL setting. * Be sure SQUELCH is adjusted properly. Is the radio over-squelched? * Check to see that the radio is switched to an operational mode.

3. If trouble is experienced with transmitting. * Check to see that the transmission line (coaxial cable) is securely connected to

the ANTENNA CONNECTOR.

* Be sure that the antenna is fully extended for proper operation. * Be sure that all transmission line (coaxial cable) connections are secure and free

of corrosion.

- 12 -

NOTES

- 13 -

NOTES

- 14 -

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uniden

TWO-YEAR LIMITED WARRANTY

WARRANTOR. UNIDEN CORPORATION OF AMERICA ("UNIDEN’)

ELEMENTS OF WARRANTY. UNiDEN warrants, for the duration of this warranty, its UNIDEN CB Product to be free from defects in meteridls and craftsmanship with only the limitation or exclusions set out below.

Warranty duration. This warranty shall terminate and be of no further effect Two (2) years after the date of original purchase of the Product or at the time the Product is (a} damaged or not maintained as reasonable and necessary, (b| modified, (c| improperly installed, (d| is repaired by someone other than Warrantor for a defect or malfunction cowered by this Warranty, or (e| used in a manner or purpose for which the Product was not intended,

PARTS COVERED, This Warranty covers all components of the Products. STATEMENT OF REMEDY. In the event that the Product does not conform to this Warranty at any

time while this Warranty is effective. Warrantor will repair the defect and return it to you prepaid, without charge for parts, service, or any other costs incurred by Warrantor or its representatives in connection with the performance of this Warranty. In addition, if the Product contains a defect or malfunction which is not repaired after a reasonable number of attempts by Warrantor to repair the Product, the Product or defective component will, at your eieciion, either be replaced without charge Or the purchase price for the Product will be refunded when the defective Product is delivered to Warrantor free and clear of all liens and encumbrances. Please note that while the Product will be remedied under this Warranty without charge, THIS WARRANTY DOES NOT COVER OR PROVIDE FOR THE REIMBURSEMENT OR PAYMENT OF INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Some states do not allow this exclusion or limitation of incidental or consequential damages, so the above fimitatlon or exclusion may not apply to you,

WARRANTY REGISTRATION CARD. In order to facilitate the servicing of this Warranty by Warrantor, the Warranty Registration Card should be returned to Warrar>tor. However, return of the Warranty Registration Card is not a precondition of this Warranty, and this Warranty will be observed by Warrantor whether or not the Warranty Registration Card is returned, on the condition that other satisfactory evidence of the date of the original purchase is provided by Warrantor.

PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY. In the event that the Product does not conforrn to this Warranty, the Product should be shipped prepaid to Warrantor. THE ORIGINAL OR A COPY OF THE SALES RECEIPTOR OTHER VALID EVIDENCE OF THE DATE OF THE ORIGINAL PURCHASE MUST ACCOMPANY THIS PRODUCT.

legal remedies. This Warranty gives you specific legal rights, and ycKJ may also have other rights

which vary from state to state.

This uiarranty is void outside Che United States of AmerTca.

UTUDOlBtGZD

uniden*

CORPORATION OF AMERICA

Personal Communications Division

47aO Лп10п Carter BouíFV¿ird

Fort Worth, Tex» TbISS