Introduction
Thank you for choosing the vhbw SMA Connector Telescopic Antenna. This antenna is designed to enhance the signal reception and transmission capabilities of your compatible portable radio. Its precise construction ensures a secure and comfortable fit, while its telescopic and adjustable design offers optimal flexibility for various operating conditions. Please read this manual carefully to ensure proper installation and use.
Setup
- Identify the Connector: Locate the SMA female connector on your portable radio. The vhbw antenna features an SMA male connector.
- Attach the Antenna: Carefully align the SMA male connector of the antenna with the SMA female connector on your radio. Gently screw the antenna clockwise until it is finger-tight. Do not overtighten.
- Adjust Angle: The antenna can be tilted up to 90 degrees at its base. Adjust the angle for optimal positioning based on your operating environment.
- Extend the Antenna: The antenna is telescopic. Gently pull the sections to extend it to your desired length, up to 80 cm. For compact storage or specific signal conditions, retract the antenna to its minimum length of 20 cm.

This image shows a detailed view of the SMA male connector at the base of the vhbw antenna, designed for secure attachment to compatible portable radios.

This image displays the vhbw antenna in its fully extended state, highlighting its telescopic design, the 90-degree adjustable joint, and frequency markings (95-1100MHz) along the shaft.
Operating Instructions
- Extension and Retraction: Extend the antenna to its full length for maximum signal gain. For shorter range communication or when storing the radio, retract the antenna.
- Angle Adjustment: Experiment with different antenna angles to find the best reception and transmission performance in your specific location. The 90-degree tilt feature allows for versatile positioning.
- Signal Optimization: The antenna's performance is influenced by its length and orientation. Adjust these parameters to optimize signal strength for your operating frequency within the 95-1100 MHz range.
Maintenance
- Cleaning: Wipe the antenna with a soft, dry cloth to remove dust and dirt. Avoid using harsh chemicals or abrasive materials.
- Storage: When not in use, retract the antenna to its shortest length and store it in a clean, dry place to prevent damage.
- Inspection: Periodically check the antenna for any signs of damage, such as bent sections or loose connections. Replace if necessary.
Troubleshooting
Poor Reception or Transmission
- Check Connection: Ensure the antenna is securely screwed onto the radio's SMA connector. A loose connection can significantly degrade performance.
- Adjust Length and Angle: Try extending the antenna to its full length and experimenting with different tilt angles to find the optimal position for your environment.
- Verify Compatibility: Confirm that your radio model (e.g., Vertex/Yaesu VX-1R, VX-177, VX-170, VX-180) is listed as compatible with this antenna.
- Environmental Factors: Obstructions like buildings, terrain, or other electronic devices can interfere with signal. Try moving to a different location.
Specifications
| Connector Type | SMA Male |
| Length | 20 cm (retracted) to 80 cm (extended) |
| Impedance | 50 Ohms |
| Gain | 2.15 dBi (95-300 MHz) / 3.2 dBi (300-1100 MHz) |
| Frequency Range | 95-1100 MHz |
| Color | Black |
| Weight | 29 g |
| Compatibility | Vertex/Yaesu VX-1R, VX-177, VX-170, VX-180 |
Warranty Information
This vhbw product is covered by the standard manufacturer's warranty. Please refer to the product packaging or contact your retailer for specific warranty terms and conditions. Keep your proof of purchase for any warranty claims.
Support
For technical assistance, troubleshooting, or further inquiries regarding your vhbw antenna, please contact the seller or visit the official vhbw website for support resources. Ensure you have your product model and purchase details ready when contacting support.