Walkie talkie truckers yo jc 2204 button assignment. Engine lock or battery ground

31.08.2023

Simple, reliable and easy-to-use car CB radio. For a long time this station was one of the most popular and versatile models in Russia and the CIS.

The radio station successfully combines quite decent characteristics and low price. So, this model is distinguished by high sensitivity of the receiver, which allows you to confidently receive the input signal at the maximum distance, as well as convenient and understandable control. For these reasons, YOSAN JC-2204 is widely used as a taxi radio.

YOSAN JC-2204 has a fairly simple, classic design: "knobs" for controlling the "volume", "squelch level" modes and a channel switch. Many users appreciate the possibility of manual control of these functions. Button control is provided for switching modulation mode, "scanning" mode, "dual monitor" function and MOD/SRF switch. In this case, not only the channel number, but also all current modes are displayed on a fairly large LCD display.

Instruction for YOSAN JC-2204 in Russian.

YOSAN JC-2204 FEATURES:

Strict classic design
Compact body
High noise immunity
Easy to read LCD display (indication of signal level (S, RF) and modulation)
Button illumination
Modes: scanning (SCAN), listening to two selected channels
Ability to connect an external speaker
Precision Phase AFC (PLL)

SPECIFICATIONS YOSAN JC-2204
frequency range	26.965 - 27.405 MHz
Number of channels	200 (memory - 7)
Supply voltage	13.6V
Operating temperature range	-10 ... +55 °C
Dimensions (WxDxH)	157x150x45 mm
Weight	815 g
TRANSMITTER
output power	5W (at 13.6V) 4 W (at 8 V)
Modulation type	AM (depth 85-90%) FM (deviation 1.8 +/- 0.2 kHz)
Signal to noise ratio	>40 dB
Consumption in transmission mode	up to 1.1 A
RECEIVER
Type	Superheterodyne double IF (intermediate frequencies: first 10.695 MHz, second 465 kHz)
Sensitivity	0.5 μV (FM, signal-to-noise ratio 20 dB) 0.5 µV (AM, signal-to-noise ratio 10 dB)
Harmonic distortion at 1 kHz	< 8%
Adjacent/image selectivity	65 dB
Receive consumption	400mA

Complete set: walkie talkie YOSAN JC-2204, PTT control, mounting bracket in the car, power cord, instructions.

CAR RADIOS

CIVIL RANGE

Technical description

1. INTRODUCTION
2.TECHNICAL SPECIFICATIONS

3. LOCATION OF CONTROLS

6 SELECTION, INSTALLATION AND SETUP OF THE VEHICLE ANTENNA

7. PREPARATION FOR WORK

8. CONTROLS, CONNECTORS. THEIR FUNCTIONS AND USE

9. FACTORS DETERMINING THE EFFICIENCY OF CB COMMUNICATIONS
HIGH QUALITY MOBILE CB RADIO

PLEASE READ ALL INSTRUCTIONS BEFORE USING YOUR YOSAN JC-2204

GENERAL STANDARD FEATURES

Large, easy to read LCD display
Scan Mode
Dual tracking mode
Indication of signal level "S", "RF" and modulation level
Front-mounted high-quality microphone
CB-PA switch provides use as a broadcast amplifier
Jacks for external speaker and broadcast speaker (PA)
Precision phase locked loop (PLL)


Frequency range	26.965 - 27.405 MHz
Frequency hopping	Synthesizer with phase
	frequency lock (PLL)
Frequency instability
Operating range temp.
Supply voltage
Dimensions	150(W)x40(H)x148(L) mm


2.RECEIVER
Reception system	superheterodyne double
	frequency conversion
Intermediate frequencies	First IF: 10.695 MHz
	Second IF: 455 kHz
Sensitivity	0.5uV for 20dB SINAD in FM model mode
	0.5µV for 20dB SINAD in AM model mode
Audio output power at 10% THD	2.0 W per load 8 ohm
Permissible non-linear distortion	less than 8% at 1kHz
Image selectivity	65 dB (typical)
Adjacent channel selectivity	65 dB (typical)
Current consumption

3. TRANSMITTER
output power	4 W at 13.2 V supply
Modulation
	FM: 1.8kHz +/-0.2kHz
Input frequency range	400 Hz to 2.5 kHz
output impedance	50 ohm unbalanced
Signal to noise ratio
Current consumption

Channel selector

Squelch /PA (broadcast) control

Volume control with power switch

MOD/SRF switch

Button for turning on the “Dual surveillance” mode

Button for turning on the “Scan” mode

AM/FM switch

Microphone plug connection

SWITCH/VOLUME CONTROL (OFF/VOLUME CONTROL)

Turns off the power of your CB and sets the volume of the received signal.

SQUELCH CONTROL

When turned clockwise, reduces receiver noise when no signal is being received, providing silent standby. The squelch control operates only in the receive mode and does not affect the volume of the received signal. When installing, the regulator is rotated clockwise until the noise in the speaker disappears. The received signal automatically turns off the noise canceling mode. Installing the squelch in the wrong position will not receive weak signals (they will be suppressed as noise).

INDICATOR SIGNAL/RF OUTPUT/MODULATION

Your YOSAN JC-2204 uses a 10-segment "S" received signal strength and "RF" transmitter power indicator on the LCD panel.

If you are in receive mode and receiving a signal, the "S" indicator shows the level (strength) of the received signal.

The indicator has 10 segments. Reception of a very weak reception signal is indicated by the glow of 1-2 segments, and a strong signal is indicated by the glow of 9-10 segments.

In transmission mode, "RF" appears on the display. Your JC-2204 has a 10-segment modulation level indicator on the LCD panel. When transmitting, after pressing the PTT, the display shows "MOD" and the modulation indicator shows the modulation depth.

DUAL SURVEILLANCE (WATCH)

This feature is equivalent to having 2 receivers in your JC-2204. It is possible to work in monitor mode on two different channels out of 40 possible. The channel on which you communicate and monitor most often is called the MAIN channel. Another channel that can be observed immediately is called the SUB (secondary) channel. Suppose you want to operate on channel 19 (as the MAIN channel) and be able to receive information on channel 9 (SUB channel).

NOTE: The MAIN channel is always set first.

Turn on the device, set the volume and noise reduction
Use the channel selector to tune in to channel 19.
Press the DUAL WATCH button (DW will appear on the display)
Use the selector to set channel 9.
After 3 seconds, the numbers 19 and 9 will appear alternately on the display, indicating that the device is operating in the monitor mode on two channels.

Any two channels can be selected for dual surveillance. When transmitting, you can release the PTT. Your station will transmit on the MAIN or SUB channels ONLY if either of them is receiving a signal.

To disable the dual watch mode, press the "DUAL WATCH" button.

SCANNING

Your JC-2204 has a scan function. The radio will scan on all 40 channels. On the BUSY channel, the station stops.

Within 7 seconds after the end of communication, the station remains tuned to this channel, then switches back to scanning mode.

To enable this mode, turn on the power and set
desired sound volume.
Adjust "NOISE REDUCTION" (SQUELCH). When you release the SCAN button, scanning starts. "SCAN" will appear on the LCD screen and the machine will start scanning. To stop scanning, press the SCAN button or the PTT. At the same time, scanning stops and transmission begins on this channel.

SWITCH CB-PA

Activating CB mode connects your CB speaker, which is for indoor use only; in PA mode, external broadcasting is possible using an acoustic transducer.

EXTERNAL SPEAKER JACK

Allows you to connect an external speaker while muting the internal speaker. The connection is made to the "EXTERNAL SPEAKER" jack on the rear panel of the transceiver.

SOCKET "PA"

An acoustic emitter can be connected to the PA socket. At the same time, it is possible to broadcast information to other vehicles and pedestrians using the microphone of your CB radio station.

MICROPHONE PTT - PTT

Press the button to transmit, release when receiving.

The display panel of the radio station JC - 2204 is the information and command center of the radio station.

Panel plays:

1. Working channel number

2. Indicates

A. Received signal level (when SRF is displayed)

B. Relative output power level (when SRF is displayed)

C. Modulation level (when MOD is displayed)

3. Indicates SCAN mode

4. Indicates Dual Watch Mode (DM)

5. Indicates transmission mode (TX)

6. Indicates the type of modulation (AM, FM)

The transceiver can be installed in any 12 volt vehicle with negative ground. Most vehicles have a power system with a negative electrode on the body, however, some older models use a network with a grounded positive electrode.

CHECK THIS REQUIREMENT BEFORE INSTALLING YOUR YOSAN JC-2204 RADIO

In a grounded negative electrode system, the negative (-) terminal of the battery is connected to the engine compartment housing. If you cannot determine the type of electrical equipment in your vehicle, contact your dealer or dealer or auto mechanic.

Radio installation and mounting accessories are supplied with your YOSAN CB, which includes:

Easily removable fittings for installation in the car.
Bracket for mounting the microphone system.
Fasteners for mounting the bracket.
Microphone with spiral microphone cord.
Manual.

WHERE IN YOUR CAR SHOULD YOU INSTALL THE RADIO

Your radio is designed to be installed under the dashboard of a car. The main conditions for choosing an installation site are safety and ease of use.

WARNING: Check that the installed radio does not obstruct the driver's view or access to the controls.

The place of installation and fastening of connecting cables and wires should not interfere with access to the steering wheel, accelerator and other controls of the car. Remember, interference caused by improper radio installation can cause loss of vehicle control.

MECHANICAL FASTENING

Step 1: Using caution, use the mounting bracket to mark the station mounting locations under the dash.

Step 2: Drill holes with a diameter of 3 mm at the mounting screws that secure the mounting bracket. Secure the bracket with 3/8" Phillips self-tapping screws. When tightening the screws, be careful not to damage the ignition wires (passing under the dashboard) as well as the control wires and harness from the dashboard.

Step 3: Install and secure the radio to the mounting bracket, making room behind the radio to connect the power cord to the radio.

CONNECTING THE POWER CABLE

Step 1: If you have not yet determined the polarity of the body-grounded electrode, do so now. Then, disconnect the wires from the battery to prevent the possibility of a short circuit, which may accidentally occur when connected.

Step 2: When grounding the negative battery terminal, connect the red wire - which has the fuse - to:

terminal on the fuse block,
cigarette lighter
directly to the positive battery terminal.

Connect the black wire to the body.

When grounding the positive battery terminal, connect the black wire to the power supply terminal and the red wire to the chassis. (The fuse box is the most convenient place to connect.) You can connect the radio to the ignition switch so that the radio will automatically turn off when the ignition is off, preventing accidental battery drain.

Step 3. There is a disconnected power cable (power cable connector) on the back of the radio.

ENGINE LOCK OR BATTERY GROUND

Negative ground Positive ground

NEGATIVE GROUND

Negative wire is grounded to the car body
Generator
12 volt battery
An example of a 12-volt power network with a negative electrode on the ground.

Network example in most cars and trucks.

POSITIVE GROUND

The positive wire is grounded to the car body
Generator
12 volt battery
An example of a 12-volt network with a positive electrode on the ground.

RADIO INSTALLATION

Step 1: Position the radio chassis between the bracket side panels, aligned with the mounting holes. Set the angle of the bracket to the most convenient for viewing and operation.

Step 2: Tighten the fixing screws.

INSTALLING THE MICROPHONE HOLDER

There are mounting holes on the side of the radio for attaching a microphone. The microphone holder can be installed on the dashboard of a car.

CONNECTING AN EXTERNAL SPEAKER

Determine the position of the "EXT" jack on the rear panel. Install and connect the speaker wire to the "EXT" jack. After connecting an external speaker, the built-in speaker is disabled.

CONNECTING THE COMPLETE HORN ACOUSTIC TRANSDUCER

Locate the "PA" jack on the back of the radio main unit. Install and secure the mating connector from the emitter in the "PA" socket. Instructions for installing and mounting acoustic are available in the documentation for the emitter, along with a wiring diagram.

Two types of mobile CB antennas are commonly used - full length whip and short whip - and a large number of mounting options (depending on the installation site).

ANTENNA INSTALLATION LOCATION AFFECTS PERFORMANCE

By following some basic rules, the quality of communication can be improved.
Install the antenna at the highest point of your vehicle.
The more of the antenna above the roof, the better.
The antenna should be mounted as centrally as possible on a flat surface.
The installation of the antenna cable is carried out as far as possible from sources of radio interference, such as the ignition system, etc.
It is necessary to check the reliability of the ground connection to the car body.
Make sure the antenna cable is not damaged.

There are 5 antenna placement options: Roof, Door, Rear Fender, Front Fender and Rear Bumper. The selected antenna type also determines the installation location. Please consult your dealer on this matter for installation information based on the types of antennas available.

Bumper installation
Installation on the front fender
Door installation
Rear fender installation
Rooftop installation

ANTENNA INSTALLATION

Installation is carried out in accordance with the manufacturer's instructions.

Warning: Do not turn on your CB station in transmit mode with an unconnected or broken antenna. This may damage the transmitter.

TUNING YOUR ANTENNA

Some antennas are factory set. However, if the antenna is slightly lengthened or shortened, the communication quality can be improved by using the MOD/RF function. Refer to the Antenna Installation Guide for detailed installation procedures.

Once properly installed, your CB transceiver and antenna are ready for six operations to ensure efficient, high-quality communications.

Turn on the microphone jack on the front panel and check the connection.
Make sure the antenna is securely connected to the antenna jack.
Check the squelch threshold setting (should be set to "9 o'clock").
Turn on the power and turn the volume control to the desired sound volume.
Turn the channel selector knob clockwise (up) or counterclockwise (down) to select the desired channel.
When transmitting, press the PTT on the microphone, when receiving, release the PTT.

Table of frequency distribution by channels

Link quality limits are subject to the same factors as conventional AM, FM and other types of communication with moving objects.

TERRAIN: Hills and valleys are natural obstacles and reduce the range of CB communications.

WEATHER: There may be a sharp - many times - decrease in communication range during atmospheric phenomena, such as a thunderstorm or blizzard. The quality of the CB connection is affected by the presence of sunspots (solar activity).

OBSTRUCTIONS

Inside tunnels, in a closed parking lot or in a garage, when crossing interchanges, CB communication may completely disappear.

In other words, the best quality of CB communication in the transmit/receive mode is achieved in an open, flat area with stable (not necessarily cloudless) weather conditions.

If, under these conditions, optimal communication quality is not achieved, check the correct and secure connection of your CB to the antenna. If necessary, consult your dealer.

WHAT IS THE REAL CAUSE OF THE NOISES

Your car may be the cause of the increased reception noise.

Your CB radio's receiver has a very high sensitivity, so it can amplify even the slightest noise, especially if the source of the noise is in close proximity to the radio. Any noise signal heard from your CB is almost certainly from outside the radio. The YOSAN CB scheme has measures (squelch or automatic noise limiter) to minimize this type of interference.

METHODS FOR REDUCING INTERFERENCE

There are several simple, affordable ways to suppress or minimize interference such as noise and interference products.

NOISE REDUCTION

The most common source of extra noise is your car's ignition system.

If you suspect that this is possible, simply turn off the ignition and turn the key to the intermediate position (ACC).

In this case, the transceiver is powered, but there will be no interference from the ignition system. If the noise disappears, it can be unequivocally concluded that the ignition system is the source of the noise. There are components in the ignition system that can be sources of noise and interference.

CANDLES and high-voltage wires are the most powerful sources of noise and interference. There are 4 simple measures to minimize this kind of interference:

install a resistive spark suppressor
high voltage resistor
resistive-conductive cable between the spark plugs and the ignition distributor and between the ignition coil and the distributor.
replace old spark plugs and high voltage wires and tune the engine.

These measures mainly reduce noise.

Many vehicles already have high-voltage cables with interference suppression. If you do not have such a cable (consult your mechanic or dealer), it can be purchased at any auto shop and installed by yourself with some skill as a mechanic.

WARNING: Do not repair or modify the ignition system unless you have professional assistance or experience in vehicle operation and maintenance.

SPARKING GENERATOR BRUSHES can cause an annoying "whine" in the radio's speaker. Sparking is caused by contact contamination and can be eliminated by polishing the surface with fine-grained sandpaper and cleaning the grooves with a miniature sharp tool.

The VOLTAGE REGULATOR can be a source of "fractional" noise in your CB that occurs when the relay contacts close and open when the battery is fully charged.

The GENERATOR ROTOR must also be kept clean and must have good contact with the brushes to minimize noise. In addition, in a single-terminal generator voltage regulator, it is necessary to install a coaxial noise suppression capacitor on the ignition input terminal. In a two-prong device, install a second capacitor on the battery terminal. It is possible to use solder connections between the voltage regulator and the generator. Check that both ends of the cable are grounded.

Sometimes (although unlikely) sources of noise can be motors for car heater fans, turn relays, power windows, windshield wipers, which are suppressed by installing through-line coaxial capacitors (consult your mechanic about this).

WHEELS AND TIRES can also interfere with your CB. Wheel noise is eliminated by installing anti-static springs between the central bolt and the wheel seal. The static charge of tires is removed with the help of an antistatic powder, which is used to treat the tire.

CORONA DISCHARGING ANTENNA NOISE - most often occurs when using whip antennas - during electrical storms or just before a thunderstorm. To eliminate this type of interference, you must wait out the storm or leave the area.

rio26 29.04.2010 - 14:49

tel. 8-916-820-93-93 Moscow. 1500r. in working order. Includes microphone and power cord for cigarette lighter. Photo condition. Description from the internet:

The YOSAN JC-2204 mobile CB radio is the best choice for both true CB enthusiasts and those who simply love good quality. The YOSAN JC-2204 radio is a high quality 240-channel car radio in the 27 MHz band. Very reliable, convenient for the inexperienced user walkie-talkie. Sufficiently large controls, which affects the convenience of quickly changing any adjustments and switching while the car is moving.
The radio station has convenient controls and high output power. Fine tuning of the YOSAN-2204 radio is provided by using a frequency synthesizer with phase locked loop. The YOSAN JC2204 mobile radio can be used in both basic and mobile versions.
The high noise immunity of YOSAN 2204 radios ensures excellent communication quality even at long distances. Modern design, luminous and easy-to-read multifunctional display of the YOSAN JC 2204 radio station.
A truck driver uses the YOSAN2204 car radio as a means of communication, receiving and transmitting information, and this is additional safety for him on the road. Radio-equipped transportation services reduced the costs and time of delivery of the ordered cargo, radio dispatching of special vehicles and technical means ensured their rapid redistribution and prompt execution of work in the event of emergency situations and their consequences. For car enthusiasts, the YOSAN 2204 basic radio is a convenient means of "live" communication and receiving information from the "Rescue Service".

YOSAN JC-2204 RADIO APPLICATION

●sea, road, air and rail transport
●security, collection, cargo escort
●extraction of oil, gas, coal, timber and other minerals
●radio taxi, car companies
●escort services
●car enthusiasts
YOSAN JC-2204 RADIO FUNCTIONS
●scanning and monitoring mode for two selected channels, indicator of levels and radio signal parameters
●high reliability
●strict classic design ●compact body
●high noise immunity
●easy to read LCD display
●button backlight
●Listening function of two selected channels (DW)
●possibility to connect an external speaker
●External megaphone (PA) function
●inclusion of the emergency 9th channel (EMG)
●quick channel selection (Q.UP/Q.DOWN)
●switching amplitude and frequency modulation (AM/FM)
●scanning (SCAN)
RADIO RANGE 12km

ARE COMMON
Number of channels 240
Frequency range 26.965 - 27.855 MHz
Channel grid spacing 10 kHz
Supply voltage 13.8 V
Ambient temperature -10.C...+55.C
Dimensions 40 x 148 x 150 mm
Weight 1 kg
RECEIVER
Double conversion superheterodyne circuit
Sensitivity 0.5 μV at 20 dB c/w
Adjacent channel selectivity 65 dB
Intermodulation selectivity 65 dB
TRANSMITTER
RF output power up to 10 W
Frequency stability 0.001

PLEASE READ ALL INSTRUCTIONS BEFORE USING YOUR YOSAN JC-2204

GENERAL STANDARD FEATURES

Large, easy to read LCD display
Scan Mode
Dual tracking mode
Indication of signal level "S", "RF" and modulation level
Front-mounted high-quality microphone
CB-PA switch provides use as a broadcast amplifier
Jacks for external speaker and broadcast speaker (PA)
Precision phase locked loop (PLL)

2.TECHNICAL SPECIFICATIONS

ARE COMMON
Channels	AM 40, FM 40
Frequency range	26.965 - 27.405 MHz
Frequency hopping	Synthesizer with phase
	frequency lock (PLL)
Frequency instability	0.005% MAX
Operating range temp.	-10 to +55 C
Supply voltage	13.2V +/-15%
Dimensions	150(W)x40(H)x148(L) mm
Weight	815g
RECEIVER
Reception system	Double conversion superheterodyne
Intermediate frequencies	First: 10.695 MHz Second: 455 kHz
Sensitivity	0.5uV for 20dB SINAD
Audio frequency output power at 10% THD	2.0 W per load 8 ohm
Permissible non-linear distortion	less than 8% at 1kHz
Image selectivity	65 dB (typical)
Adjacent channel selectivity	65 dB (typical)
Current consumption	250 mA
TRANSMITTER
output power	4 W at 13.2 V supply
Modulation	AM: 85% - 95%, FM: 1.8kHz +/-0.2kHz
Input frequency range	400 Hz to 2.5 kHz
output impedance	50 ohm unbalanced
Signal to noise ratio	40dB MIN
Current consumption	1100 mA

3. LOCATION OF CONTROLS

Channel selector
Squelch /PA (broadcast) control
Volume control with power switch
MOD/SRF switch
Button for turning on the “Dual surveillance” mode
Button for turning on the “Scan” mode
AM/FM switch
Microphone plug connection

4. CONTROLS, CONNECTORS, THEIR FUNCTIONS AND USE

SWITCH/VOLUME CONTROL (OFF/VOLUME CONTROL)

Turns off the power of your CB and sets the volume of the received signal.

SQUELCH CONTROL

INDICATOR SIGNAL/RF OUTPUT/MODULATION

Your YOSAN JC-2204 uses a 10-segment "S" received signal strength and "RF" transmitter power indicator on the LCD panel.

If you are in receive mode and receiving a signal, the "S" indicator shows the level (strength) of the received signal.

The indicator has 10 segments. Reception of a very weak reception signal is indicated by the glow of 1-2 segments, and a strong signal is indicated by the glow of 9-10 segments.

DUAL WATCH

COMMENT: the MAIN channel is always set first.

Turn on the device, set the volume and noise reduction
Use the channel selector to tune in to channel 19.
Press the DUAL WATCH button (DW will appear on the display)
Use the selector to set channel 9.
After 3 seconds, the numbers 19 and 9 will appear alternately on the display, indicating that the device is operating in the monitor mode on two channels.

To disable the dual watch mode, press the "DUAL WATCH" button.

SCANNING

Your JC-2204 has a scan function. The radio will scan on all 40 channels. On the BUSY channel, the station stops.

Within 7 seconds after the end of communication, the station remains tuned to this channel, then switches back to scanning mode.

SWITCH CB-PA

Activating CB mode connects your CB speaker, which is for indoor use only; in PA mode, external broadcasting is possible using an acoustic transducer.

EXTERNAL SPEAKER JACK

Allows you to connect an external speaker while muting the internal speaker. The connection is made to the "EXTERNAL SPEAKER" jack on the rear panel of the transceiver.

SOCKET "PA"

An acoustic emitter can be connected to the PA socket. At the same time, it is possible to broadcast information to other vehicles and pedestrians using the microphone of your CB radio station.

MICROPHONE PTT - PTT

Press the button to transmit, release when receiving.

5. LCD DISPLAY

The display panel of the radio station JC - 2204 is the information and command center of the radio station.

Panel plays:

1. Working channel number
2. Indicates:

A. Received signal level (when SRF is displayed)
B. Relative output power level (when SRF is displayed)
C. Modulation level (when MOD is displayed)

3. Indicates SCAN mode
4. Indicates Dual Watch Mode (DM)
5. Indicates transmission mode (TX)
6. Indicates the type of modulation (AM, FM)

...

CHECK THIS REQUIREMENT BEFORE INSTALLING YOUR YOSAN JC-2204 RADIO

Radio installation and mounting accessories are supplied with your YOSAN CB, which includes:

Easily removable fittings for installation in the car.
Bracket for mounting the microphone system.
Fasteners for mounting the bracket.
Microphone with spiral microphone cord.
Manual.

WHERE IN YOUR CAR SHOULD YOU INSTALL THE RADIO

Your radio is designed to be installed under the dashboard of a car. The main conditions for choosing an installation site are safety and ease of use.

WARNING: Check that the installed radio does not obstruct the driver's view or access to the controls.

MECHANICAL FASTENING

Step 1: Using caution, use the mounting bracket to mark the station mounting locations under the dash.

Step 3: Install and secure the radio to the mounting bracket, making room behind the radio to connect the power cord to the radio.

CONNECTING THE POWER CABLE

Step 2: When grounding the negative battery terminal, connect the red wire - which has the fuse - to:

terminal on the fuse block,
cigarette lighter
directly to the positive battery terminal.

Connect the black wire to the body.

Step 3. There is a disconnected power cable (power cable plug) on the back of the radio.

ENGINE LOCK OR BATTERY GROUND

Negative ground Positive ground

NEGATIVE GROUND

Negative wire is grounded to the car body
Generator
12 volt battery

POSITIVE GROUND

The positive wire is grounded to the car body
Generator
12 volt battery

RADIO INSTALLATION

Step 1: Position the radio chassis between the bracket side panels, aligned with the mounting holes. Set the angle of the bracket to the most convenient for viewing and operation.

Step 2: Tighten the fixing screws.

INSTALLING THE MICROPHONE HOLDER

There are mounting holes on the side of the radio for attaching a microphone. The microphone holder can be installed on the dashboard of a car.

CONNECTING AN EXTERNAL SPEAKER

Determine the position of the "EXT" jack on the rear panel. Install and connect the speaker wire to the "EXT" jack. After connecting an external speaker, the built-in speaker is disabled.

CONNECTING THE COMPLETE HORN ACOUSTIC BEAM (PUBLIC ADRESS)

....

7. SELECTION, INSTALLATION AND SETUP OF THE VEHICLE ANTENNA

Two types of mobile CB antennas are commonly used - full length whip and short whip - and a large number of mounting options (depending on the installation site).

ANTENNA INSTALLATION LOCATION AFFECTS PERFORMANCE

By following some basic rules, the quality of communication can be improved.
Install the antenna at the highest point of your vehicle.
The more of the antenna above the roof, the better.
The antenna should be mounted as centrally as possible on a flat surface.
The installation of the antenna cable is carried out as far as possible from sources of radio interference, such as the ignition system, etc.
It is necessary to check the reliability of the ground connection to the car body.
Make sure the antenna cable is not damaged.

Bumper installation
Installation on the front fender
Door installation
Rear fender installation
Rooftop installation

ANTENNA INSTALLATION

Installation is carried out in accordance with the manufacturer's instructions.

Warning: Do not turn on your CB station in transmit mode with an unconnected or broken antenna. This may damage the transmitter.

TUNING YOUR ANTENNA

.....

8. PREPARATION FOR WORK

Once properly installed, your CB transceiver and antenna are ready for six operations to ensure efficient, high-quality communications.

Turn on the microphone jack on the front panel and check the connection.
Make sure the antenna is securely connected to the antenna jack.
Check the squelch threshold setting (should be set to "9 o'clock").
Turn on the power and turn the volume control to the desired sound volume.
Turn the channel selector knob clockwise (up) or counterclockwise (down) to select the desired channel.
When transmitting, press the PTT on the microphone, when receiving, release the PTT.

......

9. FACTORS DETERMINING THE EFFICIENCY OF CB COMMUNICATIONS

Table of frequency distribution by channels

Frequency	Channel	Frequency	Channel
26.965 MHz	1	27.215 MHz	21
26.975 MHz	2	27.225 MHz	22
26.985 MHz	3	27.255 MHz	23
27.005 MHz	4	27.235 MHz	24
27.015 MHz	5	27.245 MHz	25
27.025 MHz	6	27.265 MHz	26
27.035 MHz	7	27.275 MHz	27
27.055 MHz	8	27.285 MHz	28
27.065 MHz	9	27.295 MHz	29
27.075 MHz	10	27.305 MHz	30
27.085 MHz	11	27.315 MHz	31
27.105 MHz	12	27.325 MHz	32
27.115 MHz	13	27.335 MHz	33
27.125 MHz	14	27.345 MHz	34
27.135 MHz	15	27.355 MHz	35
27.155 MHz	16	27.365 MHz	36
27.165 MHz	17	27.375 MHz	37
27.175 MHz	18	27.385 MHz	38
27.185 MHz	19	27.395 MHz	39
27.205 MHz	20	27.405 MHz	40

Communication quality limitations depend on the same factors as in conventional AM, FM and other types of communication with mobile objects:

RELIEF: Hills and valleys are natural obstacles and reduce the range of CB communications.

WEATHER: Perhaps a sharp - many times - decrease in the communication range during atmospheric phenomena, such as a thunderstorm or a blizzard. The quality of the CB connection is affected by the presence of sunspots (solar activity).

OBSTRUCTIONS

Inside tunnels, in a closed parking lot or in a garage, when crossing interchanges, CB communication may completely disappear.

In other words, the best quality of CB communication in the transmit/receive mode is achieved in an open, flat area with stable (not necessarily cloudless) weather conditions.

If, under these conditions, optimal communication quality is not achieved, check the correct and secure connection of your CB to the antenna. If necessary, consult your dealer.

WHAT IS THE REAL CAUSE OF THE NOISES

Your car may be the cause of the increased reception noise.

METHODS FOR REDUCING INTERFERENCE

There are several simple, affordable ways to suppress or minimize interference such as noise and interference products.

NOISE REDUCTION

The most common source of extra noise is your car's ignition system.

If you suspect that this is possible, simply turn off the ignition and turn the key to the intermediate position (ACC).

CANDLES and high-voltage wires are the most powerful sources of noise and interference. There are 4 simple measures to minimize this kind of interference:

install a resistive spark suppressor
high voltage resistor
resistive-conductive cable between the spark plugs and the ignition distributor and between the ignition coil and the distributor.
replace old spark plugs and high voltage wires and tune the engine.

These measures mainly reduce noise.

WARNING: Do not repair or modify the ignition system unless you have professional assistance or experience in vehicle operation and maintenance.

GENERATOR BRUSH SPARKS may cause an annoying "wail" in the radio's speaker. Sparking is caused by contact contamination and can be eliminated by polishing the surface with fine-grained sandpaper and cleaning the grooves with a miniature sharp tool.

VOLTAGE REGULATOR can be a source of "fractional" noise in your CB that occurs when the relay contacts close and open with a fully charged battery.

ROTOR GENERATOR must also be clean and have good contact with the brushes to minimize noise. In addition, in a single-terminal generator voltage regulator, it is necessary to install a coaxial noise suppression capacitor on the ignition input terminal. In a two-prong device, install a second capacitor on the battery terminal. It is possible to use solder connections between the voltage regulator and the generator. Check that both ends of the cable are grounded.

Sometimes (although unlikely) sources of noise can be fan motors vehicle heater, turn relay, power windows, windshield wipers, which are suppressed by the installation of through-line coaxial capacitors (consult your mechanic on this).

WHEELS AND TIRES may also interfere with your CB. Wheel noise is eliminated by installing anti-static springs between the central bolt and the wheel seal. The static charge of tires is removed with the help of an antistatic powder, which is used to treat the tire.

ANTENNA CORONA NOISE- most often occurs when using whip pointed antennas - in conditions of electrical storms or just before a thunderstorm. To eliminate this type of interference, you must wait out the storm or leave the area.

CAR RADIOS

CIVIL RANGE

Technical description

PLEASE READ ALL INSTRUCTIONS BEFORE USING YOUR YOSAN JC-2204

GENERAL STANDARD FEATURES

Large, easy to read LCD display
Scan Mode
Dual tracking mode
Indication of signal level "S", "RF" and modulation level
Front-mounted high-quality microphone
CB-PA switch provides use as a broadcast amplifier
Jacks for external speaker and broadcast speaker (PA)
Precision phase locked loop (PLL)


Frequency range	26.965 - 27.405 MHz
Frequency hopping	Synthesizer with phase
	frequency lock (PLL)
Frequency instability
Operating range temp.
Supply voltage
Dimensions	150(W)x40(H)x148(L) mm


2.RECEIVER
Reception system	superheterodyne double
	frequency conversion
Intermediate frequencies	First IF: 10.695 MHz
	Second IF: 455 kHz
Sensitivity	0.5uV for 20dB SINAD in FM model mode
	0.5µV for 20dB SINAD in AM model mode
Audio output power at 10% THD	2.0 W per load 8 ohm
Permissible non-linear distortion	less than 8% at 1kHz
Image selectivity	65 dB (typical)
Adjacent channel selectivity	65 dB (typical)
Current consumption

3. TRANSMITTER
output power	4 W at 13.2 V supply
Modulation
	FM: 1.8kHz +/-0.2kHz
Input frequency range	400 Hz to 2.5 kHz
output impedance	50 ohm unbalanced
Signal to noise ratio
Current consumption

Channel selector

Squelch /PA (broadcast) control

Volume control with power switch

MOD/SRF switch

Button for turning on the “Dual surveillance” mode

Button for turning on the “Scan” mode

AM/FM switch

Microphone plug connection

SWITCH/VOLUME CONTROL (OFF/VOLUME CONTROL)

Turns off the power of your CB and sets the volume of the received signal.

SQUELCH CONTROL

INDICATOR SIGNAL/RF OUTPUT/MODULATION

Your YOSAN JC-2204 uses a 10-segment "S" received signal strength and "RF" transmitter power indicator on the LCD panel.

If you are in receive mode and receiving a signal, the "S" indicator shows the level (strength) of the received signal.

The indicator has 10 segments. Reception of a very weak reception signal is indicated by the glow of 1-2 segments, and a strong signal is indicated by the glow of 9-10 segments.

DUAL SURVEILLANCE (WATCH)

NOTE: The MAIN channel is always set first.

Turn on the device, set the volume and noise reduction
Use the channel selector to tune in to channel 19.
Press the DUAL WATCH button (DW will appear on the display)
Use the selector to set channel 9.
After 3 seconds, the numbers 19 and 9 will appear alternately on the display, indicating that the device is operating in the monitor mode on two channels.

To disable the dual watch mode, press the "DUAL WATCH" button.

SCANNING

Your JC-2204 has a scan function. The radio will scan on all 40 channels. On the BUSY channel, the station stops.

Within 7 seconds after the end of communication, the station remains tuned to this channel, then switches back to scanning mode.

SWITCH CB-PA

Activating CB mode connects your CB speaker, which is for indoor use only; in PA mode, external broadcasting is possible using an acoustic transducer.

EXTERNAL SPEAKER JACK

Allows you to connect an external speaker while muting the internal speaker. The connection is made to the "EXTERNAL SPEAKER" jack on the rear panel of the transceiver.

SOCKET "PA"

An acoustic emitter can be connected to the PA socket. At the same time, it is possible to broadcast information to other vehicles and pedestrians using the microphone of your CB radio station.

MICROPHONE PTT - PTT

Press the button to transmit, release when receiving.

The display panel of the radio station JC - 2204 is the information and command center of the radio station.

Panel plays:

1. Working channel number

2. Indicates

A. Received signal level (when SRF is displayed)

B. Relative output power level (when SRF is displayed)

C. Modulation level (when MOD is displayed)

3. Indicates SCAN mode

4. Indicates Dual Watch Mode (DM)

5. Indicates transmission mode (TX)

6. Indicates the type of modulation (AM, FM)

CHECK THIS REQUIREMENT BEFORE INSTALLING YOUR YOSAN JC-2204 RADIO

Radio installation and mounting accessories are supplied with your YOSAN CB, which includes:

Easily removable fittings for installation in the car.
Bracket for mounting the microphone system.
Fasteners for mounting the bracket.
Microphone with spiral microphone cord.
Manual.

WHERE IN YOUR CAR SHOULD YOU INSTALL THE RADIO

Your radio is designed to be installed under the dashboard of a car. The main conditions for choosing an installation site are safety and ease of use.

WARNING: Check that the installed radio does not obstruct the driver's view or access to the controls.

MECHANICAL FASTENING

Step 1: Using caution, use the mounting bracket to mark the station mounting locations under the dash.

Step 3: Install and secure the radio to the mounting bracket, making room behind the radio to connect the power cord to the radio.

CONNECTING THE POWER CABLE

Step 2: When grounding the negative battery terminal, connect the red wire - which has the fuse - to:

terminal on the fuse block,
cigarette lighter
directly to the positive battery terminal.

Connect the black wire to the body.

Step 3. There is a disconnected power cable (power cable connector) on the back of the radio.

ENGINE LOCK OR BATTERY GROUND

Negative ground Positive ground

NEGATIVE GROUND

Negative wire is grounded to the car body
Generator
12 volt battery
An example of a 12-volt power network with a negative electrode on the ground.

Network example in most cars and trucks.

POSITIVE GROUND

The positive wire is grounded to the car body
Generator
12 volt battery
An example of a 12-volt network with a positive electrode on the ground.

RADIO INSTALLATION

Step 1: Position the radio chassis between the bracket side panels, aligned with the mounting holes. Set the angle of the bracket to the most convenient for viewing and operation.

Step 2: Tighten the fixing screws.

INSTALLING THE MICROPHONE HOLDER

There are mounting holes on the side of the radio for attaching a microphone. The microphone holder can be installed on the dashboard of a car.

CONNECTING AN EXTERNAL SPEAKER

Determine the position of the "EXT" jack on the rear panel. Install and connect the speaker wire to the "EXT" jack. After connecting an external speaker, the built-in speaker is disabled.

CONNECTING THE COMPLETE HORN ACOUSTIC TRANSDUCER

Two types of mobile CB antennas are commonly used - full length whip and short whip - and a large number of mounting options (depending on the installation site).

ANTENNA INSTALLATION LOCATION AFFECTS PERFORMANCE

By following some basic rules, the quality of communication can be improved.
Install the antenna at the highest point of your vehicle.
The more of the antenna above the roof, the better.
The antenna should be mounted as centrally as possible on a flat surface.
The installation of the antenna cable is carried out as far as possible from sources of radio interference, such as the ignition system, etc.
It is necessary to check the reliability of the ground connection to the car body.
Make sure the antenna cable is not damaged.

Bumper installation
Installation on the front fender
Door installation
Rear fender installation
Rooftop installation

ANTENNA INSTALLATION

Installation is carried out in accordance with the manufacturer's instructions.

Warning: Do not turn on your CB station in transmit mode with an unconnected or broken antenna. This may damage the transmitter.

TUNING YOUR ANTENNA

Once properly installed, your CB transceiver and antenna are ready for six operations to ensure efficient, high-quality communications.

Turn on the microphone jack on the front panel and check the connection.
Make sure the antenna is securely connected to the antenna jack.
Check the squelch threshold setting (should be set to "9 o'clock").
Turn on the power and turn the volume control to the desired sound volume.
Turn the channel selector knob clockwise (up) or counterclockwise (down) to select the desired channel.
When transmitting, press the PTT on the microphone, when receiving, release the PTT.

Table of frequency distribution by channels

Link quality limits are subject to the same factors as conventional AM, FM and other types of communication with moving objects.

TERRAIN: Hills and valleys are natural obstacles and reduce the range of CB communications.

OBSTRUCTIONS

Inside tunnels, in a closed parking lot or in a garage, when crossing interchanges, CB communication may completely disappear.

In other words, the best quality of CB communication in the transmit/receive mode is achieved in an open, flat area with stable (not necessarily cloudless) weather conditions.

If, under these conditions, optimal communication quality is not achieved, check the correct and secure connection of your CB to the antenna. If necessary, consult your dealer.

WHAT IS THE REAL CAUSE OF THE NOISES

Your car may be the cause of the increased reception noise.

METHODS FOR REDUCING INTERFERENCE

There are several simple, affordable ways to suppress or minimize interference such as noise and interference products.

NOISE REDUCTION

The most common source of extra noise is your car's ignition system.

If you suspect that this is possible, simply turn off the ignition and turn the key to the intermediate position (ACC).

CANDLES and high-voltage wires are the most powerful sources of noise and interference. There are 4 simple measures to minimize this kind of interference:

install a resistive spark suppressor
high voltage resistor
resistive-conductive cable between the spark plugs and the ignition distributor and between the ignition coil and the distributor.
replace old spark plugs and high voltage wires and tune the engine.

These measures mainly reduce noise.

WARNING: Do not repair or modify the ignition system unless you have professional assistance or experience in vehicle operation and maintenance.

The VOLTAGE REGULATOR can be a source of "fractional" noise in your CB that occurs when the relay contacts close and open when the battery is fully charged.