CB-R3 - Uncategorized Mercury - Free user manual and instructions

Product Type	CB Radio
Brand	Mercury
Model	CB-R3
Dimensions (approx.)	170 x 60 x 220 mm
Weight (approx.)	1.2 kg
Power Supply	12V DC (vehicle battery)
Frequency Range	26.965 – 27.405 MHz (CB band)
Number of Channels	40 AM/M-FM channels
Modulation	AM / FM
Antenna Connector	SO-239 (standard UHF)
Main Functions	Squelch control, volume control, channel selector, RF gain, PA/CB switch
Output Power	4 W AM / 4 W FM (adjustable)
Receiver Sensitivity	0.5 µV for 10 dB S/N
Audio Output	Built-in speaker, external speaker jack (3.5 mm)
Microphone	Dynamic, detachable with coiled cord
Maintenance & Cleaning	Wipe with a dry cloth; avoid water and solvents
Safety	Use only 12V DC; avoid short circuits; fuse protection
Spare Parts & Repairability	Contact authorized service centers; common parts available online
General Information	Designed for mobile use in vehicles; complies with FCC/CE standards

Frequently Asked Questions - CB-R3 Mercury

How do I install the Mercury CB-R3 in my vehicle?

Mount the bracket to a flat surface, connect the power to the vehicle's 12V system (red to positive, black to negative), and attach a CB antenna with a standard UHF connector.

How do I adjust the squelch on the CB-R3?

Turn the squelch knob clockwise until background noise disappears. Further adjustment may cut off weak signals; find a balance.

What is the maximum range of the CB-R3?

Under normal conditions, range is 1-5 miles (1.6-8 km). With a high-quality antenna and ideal terrain, up to 15 miles (24 km).

How do I use the PA (Public Address) function?

Set the switch to PA and speak into the microphone. The audio will be broadcast through an external speaker connected to the PA jack (not included).

What channels are used for emergency?

Channel 9 (27.065 MHz) is reserved for emergencies. Channel 19 (27.185 MHz) is commonly used by truckers for travel information.

My CB-R3 is not transmitting what should I check?

Ensure the antenna is properly connected and tuned. Check the microphone connection and that the radio is set to CH (channel mode) with a valid channel selected.

How do I clean the Mercury CB-R3?

Clean the exterior with a slightly damp cloth. Do not use cleaning agents or water directly on the device. Keep the ventilation slots free of dust.

Can I use the CB-R3 at home?

Yes, but you need a 12V power supply with sufficient current (at least 2A) and a proper base station antenna for best performance.

What is the difference between AM and FM mode?

AM (Amplitude Modulation) is more common and penetrates obstacles better; FM (Frequency Modulation) offers clearer audio and less static but shorter effective range.

Is the CB-R3 legal for use in all countries?

CB radio usage may require a license in some countries. Check local regulations before operating. The CB-R3 complies with FCC part 95 in the US and similar EU standards.

USER MANUAL CB-R3 Mercury

Bench Top Power Supplies

User Manual

Function:

The CB-R range of power supplies are ideal for powering CB radios.

This range of power supplies feature electronic voltage control and short-circuit protection. Ideal for powering CB Radios, communication transceivers and other appliances. Sturdy case fitted with a mains lead and plug.

Technical data:

Input Voltage: AC 230V 50Hz

Output Voltage: DC 13.8 V

Output current: 650.655UK (3A max.) / 650.656UK (5A max.)

Output power: 650.655UK (41.4W) / 650.656UK (69W)

Instructions:

1. Please read these instructions fully before using this apparatus.
2. Check the housing and the mains cable for damage.
3. Connect the unit to be powered to the Red and Black terminals (Red +, Black -).
4. The unit to be powered must not draw more current than the maximum continuous current of the power supply, in order to prevent overload. (The continuous current draw, should be no more than 80% of the output current max.).
5. Plug the power supply into a wall outlet.

Warning:

1. For indoor use ONLY.
2. Risk of electric shock, do not open, this device contains no user serviceable parts.

3. Do not cover the ventilation holes.

4. Do not install and operate the device in extreme heat, moisture or dusty environments.

5. Unplug the power supply when not in use.
6. The appliance is not intended for use by children or infirm persons without supervision.
7. This appliance is not intended for use by persons (include young children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
8. Young children should be supervised to ensure they do not play with the appliance.
9. This unit is double insulated.

Disposal:

Please dispose of this device according to the current statutory requirements.

CE