1. Introduction
This manual provides essential information for the proper setup, operation, and maintenance of your BAOFENG BF-108CM 42.5-inch Foldable VHF/UHF High Gain Ham Radio Antenna. Designed for seamless integration with compatible Baofeng radios, this antenna offers reliable communication and enhanced signal performance. Its durable and flexible design ensures portability and long-lasting use.
2. Product Features
- Frequency: 144/430 MHz (VHF/UHF Dual Band)
- Connector Type: SMA-Female
- Length: 42.5 inches (108 cm) when extended
- Gain: 5.0 dBi for improved signal strength
- Design: Foldable for enhanced portability and storage
- Compatibility: Designed for a wide range of Ham Radios, including Baofeng UV-5R, UV5RA, UV-5RE, BF-F8HP, BF-F8, UV-82, UV-82HP, BF-888S, BF-88A, UV-5X3, UV-5RM, UV-9R, BF-666S, BF-777S, BF-320, BF-480, BF-490, BF-V6, BF-V8, BF-F9, BF-F8Plus, BF-388A, GT-3, UV-5RB, UV-5RC, UV-5RD, UV-5REPlus, UV-5RG, UV-5RQ, UV-5RT, UV-5S, UV-5U, UV-B5, UV-B6, etc.
3. Setup and Installation
Follow these steps to properly attach and prepare your antenna for use:
- Unpack the Antenna: Carefully remove the antenna from its packaging. You will find the foldable antenna and typically a small rubber O-ring.
- Prepare the Radio: Ensure your compatible Baofeng radio is powered off before attaching or detaching any accessories. Remove any existing antenna by unscrewing it counter-clockwise.
- Attach the Antenna: Align the SMA-Female connector of the BF-108CM antenna with the SMA-Male port on your radio. Gently screw the antenna clockwise until it is finger-tight. Do not overtighten.
- Secure the Connection (Optional): For some radio models, an included O-ring can be placed around the antenna base before screwing it on to ensure a snug fit and prevent moisture ingress.
- Unfold the Antenna: The antenna is secured in a folded position with a Velcro strap. Release the strap and carefully unfold the antenna to its full 42.5-inch (108 cm) length. Ensure it is fully extended for optimal performance.
Figure 3.1: BAOFENG BF-108CM antenna attached to a Baofeng radio in its folded configuration.
Figure 3.2: BAOFENG BF-108CM antenna fully extended, showing its 42.5-inch length.
Video 3.1: Demonstration of attaching and unfolding the BAOFENG BF-108CM antenna. This video illustrates the process of connecting the SMA-Female antenna to a radio's SMA-Male port and then extending the antenna from its folded state.
Video 3.2: Overview of the 42.5-inch ABBREE SMA-Female Dual Band Foldable Antenna. This video highlights the antenna's features, including its length and folding capability, and demonstrates its attachment to a radio.
4. Operating Instructions
The BAOFENG BF-108CM antenna is designed to enhance the performance of your compatible ham radio. To achieve optimal results:
- Full Extension: Always ensure the antenna is fully extended to its 42.5-inch length when transmitting or receiving for maximum gain and range.
- Frequency Bands: This antenna supports both VHF (144 MHz) and UHF (430 MHz) frequency bands, providing versatility for various communication needs.
- Do Not Transmit When Folded: Transmitting with the antenna in a folded or partially folded state can result in a high Standing Wave Ratio (SWR), which may damage your radio. Always unfold the antenna completely before transmitting. Receiving is possible when folded, but performance will be reduced.
- Improved Performance: Expect significantly improved signal reception and transmission range compared to standard stock antennas, especially in challenging environments.
5. Maintenance
To ensure the longevity and optimal performance of your antenna, follow these maintenance guidelines:
- Cleaning: Wipe the antenna with a soft, damp cloth to remove dirt and dust. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, fold the antenna and secure it with the Velcro strap. Store it in a dry, cool place away from direct sunlight and extreme temperatures.
- Inspection: Periodically inspect the antenna for any signs of damage, such as cracks in the rubberized coating or bent elements. Ensure the SMA connector is clean and free of corrosion.
- Connector Care: Keep the SMA connector clean and dry. If necessary, use a small brush or compressed air to remove debris.
6. Troubleshooting
If you experience issues with your antenna, consider the following:
- Poor Signal/Range:
- Ensure the antenna is fully extended.
- Verify the antenna is securely attached to the radio.
- Check for any physical damage to the antenna or its connector.
- Confirm your radio settings (frequency, power output) are correct.
- Antenna Not Folding/Unfolding Smoothly:
- Check for any obstructions or debris in the folding mechanism.
- Avoid forcing the antenna; it should move with moderate pressure.
- Radio Damage After Transmitting:
- If you transmitted with the antenna folded, this could cause high SWR and potential damage to the radio's final amplifier stage. Consult your radio's manual or a qualified technician.
7. Specifications
| Attribute | Value |
|---|---|
| Model Number | BF-108CM |
| Brand | BAOFENG |
| Frequency Range | 144/430 MHz (VHF/UHF) |
| Antenna Length | 42.5 inches (108 cm) |
| Gain | 5.0 dBi |
| Connector Type | SMA-Female |
| Impedance | 50 Ohms |
| Item Weight | 0.317 ounces |
| Color | Black |
| UPC | 755745260416 |
8. Warranty and Support
For any questions, concerns, or assistance with your BAOFENG BF-108CM antenna, please feel free to contact our customer service. We are committed to providing high-quality after-sales service to ensure your satisfaction.
Please refer to your product packaging or the retailer's website for specific warranty details and contact information.
