1. Introduction
This manual provides comprehensive instructions for the proper installation, operation, and maintenance of your Diamond HV5S Multi-Band Mobile Antenna. Please read this manual thoroughly before using the antenna to ensure optimal performance and safety.
The Diamond HV5S is a versatile multi-band mobile antenna designed for amateur radio use, offering coverage across multiple frequency bands. Its robust construction ensures reliable performance in various mobile environments.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the equipment:
- Do not install the antenna near power lines or other electrical hazards.
- Ensure proper grounding of the antenna system to prevent static discharge and lightning damage.
- Avoid touching the antenna elements during transmission, as high RF power can cause burns.
- Use appropriate mounting hardware and ensure the antenna is securely fastened to prevent it from falling during vehicle movement.
- Always disconnect the radio from the antenna before performing any maintenance or installation.
3. Setup and Installation
Proper installation is crucial for the performance of your HV5S antenna. Follow these steps carefully:
3.1 Unpacking and Inspection
Carefully unpack all components and inspect them for any signs of damage. The package should include the antenna main body, radiating elements, and mounting hardware.
3.2 Antenna Assembly
Assemble the antenna elements according to the diagram. Ensure all connections are tight and secure.
Figure 1: Exploded view of the Diamond HV5S antenna, illustrating its various components and how they fit together during assembly. This image shows the main body and the radiating elements.
3.3 Mounting the Antenna
Select a suitable mounting location on your vehicle, typically a trunk lip, fender, or roof mount. The location should provide a clear path for radiation and minimize obstruction.
- Attach the antenna base to your chosen mount. Ensure a good electrical connection to the vehicle's chassis for proper grounding.
- Securely fasten the antenna using the provided hardware.
- Connect your coaxial cable (not included) to the MP connector at the base of the antenna.
Figure 2: Close-up view of the Diamond HV5S antenna's base, highlighting the MP type connector for coaxial cable attachment. This shows the robust construction and connection point.
3.4 SWR Tuning
After installation, it is essential to tune the antenna for optimal performance on your desired frequencies. Use an SWR meter to measure the Standing Wave Ratio. Adjust the length of the radiating elements as necessary to achieve an SWR of 1.5:1 or lower on the operating bands.
Refer to the specifications section for target VSWR values for each band.
4. Operating the Antenna
Once installed and tuned, the Diamond HV5S antenna is ready for operation. Connect your transceiver to the antenna via the coaxial cable.
4.1 Frequency Bands
The HV5S supports the following amateur radio bands:
- 7 MHz (40m band)
- 21 MHz (15m band)
- 50 MHz (6m band)
- 144 MHz (2m band)
- 430 MHz (70cm band)
4.2 Power Handling
Observe the maximum power handling capabilities to prevent damage to the antenna or transceiver:
- 120 W SSB (7/21/50 MHz)
- 200 W SSB (144/430 MHz)
Caution: Exceeding the maximum power rating can permanently damage the antenna.
5. Maintenance
Regular maintenance will prolong the life and ensure consistent performance of your antenna.
- Periodically check all connections for tightness and corrosion. Clean any corroded contacts with a suitable contact cleaner.
- Inspect the radiating elements for bends, cracks, or other physical damage.
- Ensure the antenna mount is secure and free from rust.
- Clean the antenna with a mild soap and water solution. Avoid abrasive cleaners.
6. Troubleshooting
If you experience issues with your Diamond HV5S antenna, refer to the table below for common problems and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| High SWR | Improper tuning, poor ground, damaged coaxial cable, incorrect mounting location. | Re-tune antenna, check ground connection, inspect/replace coaxial cable, relocate antenna. |
| Poor signal reception/transmission | High SWR, loose connections, damaged antenna element, interference. | Address high SWR, check all connections, inspect antenna, identify and mitigate interference sources. |
| Antenna noise | Electrical interference from vehicle, poor grounding. | Improve grounding, install noise filters, check vehicle electrical system. |
If the problem persists after attempting these solutions, please contact Diamond customer support.
7. Specifications
Detailed technical specifications for the Diamond HV5S Multi-Band Mobile Antenna:
| Feature | Specification |
|---|---|
| Model Number | HV5S |
| Length | 1.42 m |
| Weight | 470 g |
| Gain (430 MHz) | 3.2 dBi |
| VSWR (50/144/430 MHz) | Less than 1.5:1 |
| VSWR (7/21 MHz) | Less than 2.0:1 |
| Max Power (7/21/50 MHz) | 120 W SSB |
| Max Power (144/430 MHz) | 200 W SSB |
| Impedance | 50 ohms |
| Connector Type | MP |
| Antenna Type | 1/4 wave (7/21/50/144MHz), 5/8 wave (430MHz) |
| Color | Silver |
8. Warranty and Support
Diamond antennas are manufactured to high-quality standards. For warranty information and technical support, please refer to the official Diamond website or contact your authorized dealer.
Please retain your proof of purchase for warranty claims.
