1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your Stryker SR5KRM-B 5,000 Watt High Performance 10/11 Meter Roof Mount Antenna. Please read this manual thoroughly before installation and use to ensure proper function and safety.
The SR5KRM-B antenna is designed for high-performance communication on 10 and 11 meter bands, featuring a robust construction and a built-in weather trap for enhanced reception.
2. Safety Information
WARNING: Risk of Electric Shock and Injury
- Always exercise extreme caution when installing antennas, especially near power lines. Contact with power lines can be fatal.
- Do not install the antenna during a thunderstorm or when lightning is present.
- Ensure the mounting location is structurally sound and can support the antenna's weight and wind load.
- Wear appropriate safety gear, including gloves and eye protection, during installation.
- Properly ground the antenna system according to local electrical codes to protect against lightning strikes and static buildup.
3. Package Contents
Verify that all components are present before beginning installation:
- Stryker SR5KRM-B Antenna Base with Silver Plated Coil
- Stainless Steel Whip (62 inches)
- 18 feet of High-Quality Coax Cable with PL259 Connector
- Mounting Gaskets
- Weather Cap
- Instruction Manual (This document)
Figure 1: Overview of the Stryker SR5KRM-B antenna components, including the base, whip, and coiled coax cable.
4. Setup and Installation
Proper installation is crucial for optimal antenna performance. Follow these steps carefully:
- Choose Mounting Location: Select a central, elevated position on your vehicle's roof for the best omnidirectional coverage. Ensure the surface is flat and clear of obstructions.
- Prepare Mounting Surface: Clean the chosen area thoroughly. If drilling is required, ensure no internal wiring or components will be damaged. Use the provided mounting gaskets to create a watertight seal.
- Install Antenna Base: Securely mount the antenna base to the prepared location. Ensure it is firmly attached and properly grounded to the vehicle's chassis.
- Connect Coax Cable: Route the 18-foot coax cable from the antenna base into the vehicle, ensuring it is not pinched or damaged. Connect the PL259 connector to your 10/11 meter radio.
- Attach Stainless Steel Whip: Carefully screw the 62-inch stainless steel whip into the antenna base. Do not overtighten.
- Install Weather Cap: Place the weather cap over the top of the antenna whip to protect it from environmental elements.
- SWR Tuning: After installation, it is essential to tune the antenna for optimal performance and to prevent damage to your radio.
- Connect an SWR meter between the antenna and your radio.
- Transmit on the lowest, middle, and highest frequencies within your desired operating range (26-32 MHz).
- Adjust the length of the stainless steel whip (usually by loosening a set screw and sliding the whip up or down) until the SWR reading is as close to 1.0:1 as possible across the band, ideally below 1.5:1.
- A shorter whip increases frequency, a longer whip decreases frequency.
- Once tuned, tighten the set screw securely.
5. Operating Instructions
The Stryker SR5KRM-B antenna is designed for use with 10 and 11 meter radios, covering the frequency range of 26-32 MHz. Once properly installed and tuned, operate your radio according to its manufacturer's instructions.
- Ensure your radio is compatible with a 5,000 Watt antenna system.
- Always perform an SWR check if you move the antenna or make significant changes to your setup.
- Avoid transmitting without the antenna properly connected and tuned, as this can damage your radio.
6. Maintenance
Regular maintenance will help ensure the longevity and performance of your antenna:
- Periodic Inspection: Regularly check the antenna for any signs of damage, corrosion, or loose connections. Inspect the coax cable for fraying or cracks.
- Cleaning: Clean the antenna and its components periodically with a mild soap and water solution. Avoid abrasive cleaners that could damage the finish.
- Connection Check: Ensure the PL259 connector and all mounting hardware remain tight and secure.
- Weather Cap: Ensure the weather cap is always securely in place to protect the whip connection.
7. Troubleshooting
If you experience issues with your antenna, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| High SWR Readings | Improper antenna tuning, poor ground connection, damaged coax cable, antenna mounted too close to metal objects. | Re-tune the antenna whip. Check ground connection. Inspect coax cable for damage. Relocate antenna if possible. |
| Poor Reception/Transmission | High SWR, loose connections, faulty radio, environmental interference. | Check SWR. Ensure all connections are secure. Test with another antenna or radio if available. |
| Antenna Noise/Static | Poor grounding, electrical interference from vehicle, damaged coax. | Verify proper grounding. Check vehicle's electrical system. Inspect coax cable. |
8. Specifications
| Model | SR5KRM-B |
| Brand | Stryker |
| Power Rating | 5,000 Watts |
| Frequency Range | 10/11 Meter (26-32 MHz) |
| Antenna Type | Roof Mount |
| Coil Type | Low-loss 8 gauge silver plated |
| Coax Cable Length | 18 feet |
| Connector Type | PL259 (Quick-on/off) |
| Whip Material | Stainless Steel |
| Whip Length | 62 inches |
| Overall Antenna Height | Approximately 68.5 inches |
| Color | Silver |
| Manufacturer | IM AMELIA |
9. Warranty and Support
The Stryker SR5KRM-B antenna comes with a 2-year factory warranty. This warranty covers defects in materials and workmanship under normal use.
For warranty claims or technical support, please contact your authorized dealer or the manufacturer directly. Keep your proof of purchase for warranty validation.
For further assistance, refer to the contact information provided with your purchase documentation.
