User's Manual

ManualsBrandsRanger Electronic Communications ManualsElectronicsCB TRANSCEIVER

PPR-125

40 Channel

AM Mobile CB Radio

OWNER’S MANUAL

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CONTENS

PAGE

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Mounting The Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . . . . 4

Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Tuning The Antenna for Optimum SWR . . . . . . . . . . . . . 5

External Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Public Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Frequency Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Procedure to Receive And Transmit . . . . . . . . . . . . . . . . 11

Alternate Microphone And Installation . . . . . . . . . . . . . . 12

Maintenance And Adjustment . . . . . . . . . . . . . . . . . . . . 15

A Few Rules That Should Be Obeyed . . . . . . . . . . . . . . 16

How Your CB Can Serve You . . . . . . . . . . . . . . . . . . . . . 16

Summary of content (9 pages)

PAGE 1
CONTENS PPR-125 40 Channel AM Mobile CB Radio A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PAGE 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mounting The Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . . . . Antenna . . . . . . . . . . . . . . . . . . .
PAGE 2
SPECIFICATIONS A INSTALLATION A LOCATION GENERAL Model Channels Frequency Range Emission Frequency Control Frequency Stability Temperature Range Antenna Impedance Antenna Connectors Input Voltage Size Weight PPR-125 40 26.965 ~ 27.405 MHz AM Phase-Lock-loop (PLL) Synthesizer 0.001% -30C to +50C 50 Ohms Standard SO-239 type 13.8V DC 7- 3/8” (W) x 8- 3/4” (D) x 2- 1/4” (H) 4.2 lbs.
PAGE 3
INSTALLATION A INSTALLATION A IGNITION NOISE INTERFERENCE TUNING THE ANTENNA FOR OPTIMUM S.W.R Use of a mobile receiver at low signal levels is normally limited by the presence of electrical noise. The primary source of noise in automobile installation is from the generator and ignition system in the vehicle. Under most operating conditions, when signal level is adequate, the background noise does not present a serious problem.
PAGE 4
INSTALLATION A If you’re having difficulties in adjusting your antenna, check the following: a. b. c. d. e. f. OPERATION A FRONT PANEL All doors must be closed when adjusting the antenna Make sure the antenna base is grounded. Check your coaxial cable routing (it may be pinched when routed into the car) Try a different location in your car (keeping in mind the radiation pattern you wish.) Is the antenna perfectly vertical? Try a different location in your neighborhood.
PAGE 5
OPERATION A 5. RF GAIN CONTROL: This control is used to reduce the gain of the RF amplifier under strong signal conditions. 6. SWR CAL CONTROL: This SWR CAL control allows the user to calibrate the SWR meter. 7. TALKBACK CONTROL: Adjust this knob for desired volume of Talkback. This is used to monitor your own voice. Or example, you could use this feature to compare different microphones. OPERATION A 17. ANT LED: This LED lights red when your SWR is higher than about 3:1.
PAGE 6
OPERATION A OPERATION A PROCEDURE TO RECEIVE AND TRANSMIT FREQUENCY CHART A. MICROPHONE The receiver and transmitter are controlled by the push-to-talk switch on the microphone. Press the switch and the transmitter is activated, release switch to receive. When transmitting, hold the microphone two inches from the mouth and speak clearly in a normal voice. This transceiver comes complete with a low impedance dynamic microphone. Channel Channel Frequency Channel Channel Frequency 1 26.
PAGE 7
OPERATION A ALTERNATE MICROPHONES AND INSTALLATION For best results, the user should select a low-impedance dynamic type microphone or a transistorized microphone. Transistorized type microphones have low output impedance characteristics. The microphones must be provided with a four-lead cable. The audio conductor and its shielded lead comprise two of the leads. The third lead is for transmit control and fourth is for receiving control.
PAGE 8
OPERATION A 5. The wires must now be soldered to the pins as indicated in the above wiring tables. If a vise or clamping tool is available it should be used to hold the pin receptacle body during the soldering operation, so that both hands are free to perform the soldering. If a vise or clamping tool is not available, the pin receptacle body can be held in a stationary position by inserting it into the microphone jack on the front panel. The numbers of the microphone plug are shown in Fig.
PAGE 9
OPERATION A A FEW RULES THAT SHOULD BE OBEYED 1. You are not allowed to carry on a conversation with another station for more than five minutes at a time without taking a one-minute break, to give others a chance to use the channel. 2. You are not allowed to blast others off the air by over-powering them with illegally amplified transmitter power, or illegally high antennas. 3. You can’t use the transceiver to promote illegal activities. 4. You are not allowed to use profanity. 5.