President Johnson II USA CB Radio 12/24V User Manual

Indledning

The President Johnson II USA is a versatile AM Transceiver CB Radio designed for reliable communication in 12V or 24V vehicle electrical systems. This manual provides comprehensive instructions for the installation, operation, and maintenance of your CB radio, ensuring optimal performance and longevity.

Pakkens indhold

Ved udpakning skal du kontrollere, at alle følgende varer er inkluderet:

• President Johnson II USA CB Radio Unit
• Microphone with coiled cord
• 12/24V Power Supply Cable
• Monteringsbeslag og hardware
• Brugervejledning (dette dokument)

Figure 1: Product Packaging. The box indicates a 2-3 year warranty and highlights key features.

Nøglefunktioner

The President Johnson II USA CB Radio is equipped with a range of features designed for enhanced communication and user convenience:

• 40 AM Channels for standard CB communication.
• Compatible with 12V and 24V vehicle power systems.
• Up/Down Channel Selector for easy navigation.
• Volume Adjustment with integrated ON/OFF switch.
• Manual Squelch and Automatic Squelch Control (ASC) for clear reception.
• Multi-functions LCD Display for clear status indication.
• Digital S-meter for signal strength monitoring.
• ANL (Automatic Noise Limiter), NB (Noise Blanker), and HI-CUT filters to reduce interference.
• Local DX key for optimizing reception range.
• Channels and Memories Scan function.
• 3 Programmable Memory Channels.
• F Function Key for accessing advanced settings.
• Beep Function for audible feedback.
• Dual Watch for monitoring two channels simultaneously.
• Preset Channels 9 (Emergency) and 19 (Road Information).
• Talkback function for monitoring your own modulation.
• Weather Channel with Alert function for severe weather warnings.
• Front Microphone Plug (6 pins) for convenient access.
• External Loudspeaker Jack for connecting an external speaker.
• Integrated Front Loudspeaker.
• VOX (Voice Operated Exchange) built-in for hands-free operation.

Opsætning og installation

Proper installation is crucial for the performance and safety of your CB radio. Ensure the vehicle's power is off before beginning installation.

Montering af radioen

Select a secure and accessible location in your vehicle, away from heat sources and direct sunlight. Use the provided mounting bracket and hardware to firmly attach the radio. Ensure adequate ventilation around the unit.

Strømtilslutning

The President Johnson II USA operates on both 12V and 24V DC systems. Connect the red wire of the power cable to the positive (+) terminal of your vehicle's battery or a switched 12V/24V power source, and the black wire to the negative (-) terminal or chassis ground. It is recommended to hardwire the power cord directly to the vehicle's electrical system for stable power delivery. Install an appropriate fuse (not supplied) in the positive line close to the power source.

Antenneforbindelse

Connect a properly tuned CB antenna (not supplied) to the antenna connector on the rear of the radio. A well-matched antenna system is vital for optimal transmission and reception. Consult an expert if you are unsure about antenna tuning (SWR adjustment).

Microphone and External Speaker

Plug the microphone into the 6-pin jack located on the front panel. If desired, an external loudspeaker can be connected to the external loudspeaker jack on the rear of the unit for enhanced audio output.

Figur 2: Forside view of the President Johnson II USA CB Radio with microphone.

Betjeningsvejledning

Grundlæggende betjening

1. Tænd/sluk og lydstyrke: Rotate the VOL knob clockwise to turn the radio ON and adjust the listening volume.
2. Kanalvalg: Use the UP/DOWN buttons on the microphone or the channel selector on the unit to select your desired channel (1-40).
3. Squelch kontrol: Adjust the SQ knob to eliminate background noise when no signal is present. For automatic squelch, activate the ASC function.
4. Smitte: Press and hold the PTT (Push-To-Talk) button on the microphone to transmit. Release to receive.

Avancerede funktioner

• ANL/NB/HI-CUT: Press the corresponding buttons to activate noise reduction filters for clearer reception in noisy environments.
• Local DX: Use this key to optimize reception for local or distant signals.
• Scan: Activate the scan function to automatically sweep through channels or programmed memories.
• Hukommelseskanaler: Store frequently used channels into the 3 memory slots (M1, M2, M3) for quick recall.
• Dobbelt ur: Monitor two channels simultaneously. The radio will switch to the active channel.
• Preset Channels (9/19): Quickly access emergency channel 9 or road information channel 19.
• Talkback: Engage the Talkback function to hear your own voice through the speaker during transmission, helping you monitor your modulation.
• VOX (Stemmestyret central): This feature allows for hands-free transmission. When VOX is enabled, the radio will transmit automatically when it detects your voice. Adjust VOX sensitivity as needed.

Figur 3: Detaljeret view af kontrolpanelet.

Figure 4: VOX (Voice Operated Exchange) feature for hands-free operation.

Weather Channel with Alert

The radio includes 7 dedicated weather channels (162.400MHz to 162.550MHz) and a weather alert function. Activate this feature to receive NOAA weather broadcasts and alerts, providing crucial information during adverse weather conditions.

Opretholdelse

To ensure the longevity and optimal performance of your President Johnson II USA CB Radio, follow these maintenance guidelines:

• Rensning: Use a soft, dry cloth to clean the exterior of the radio. Avoid abrasive cleaners or solvents.
• Forbindelser: Kontrollér regelmæssigt alle kabelforbindelser (strøm, antenne, mikrofon) for at sikre, at de er fastgjorte og fri for korrosion.
• Antenna SWR: Regularly check your antenna's Standing Wave Ratio (SWR) to ensure it is properly tuned. High SWR can damage the radio's output stage.
• Opbevaring: If storing the radio for an extended period, disconnect it from power and store it in a cool, dry place.

Fejlfinding

If you encounter issues with your CB radio, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, please contact President Electronics USA customer support.

Specifikationer

Garanti og support

The President Johnson II USA CB Radio comes with a 2-3 year warranty, as indicated on the product packaging. For detailed warranty conditions and to register your product, please visit the official President Electronics webwebsted.

For technical support, troubleshooting assistance, or warranty claims, please contact President Electronics USA customer service or visit their official store page:

President Electronics Official Webwebsted
President Electronics USA Amazon Store