Polyphaser, Delta Arrestors and SwitchesPrimary Function: - Polyphaser arrestors act as a grounding device, providing a low-impedance path to the earth for transient energy while isolating the RF signals.
Installation Points: - Install arrestors at all potential entry points for lightning energy into your system, including:
- Coaxial cables
- Control lines
- Power lines
Coaxial Surge Protection: - Most Polyphaser devices are installed inline with coaxial cables. They protect the radio by clamping voltage spikes and directing surges to a properly installed ground system.
Grounding System: - An effective grounding system is essential for lightning protection. A good ground includes:
- Copper ground rods driven deep into the earth.
- Low-resistance connections to the ground system.
- Bonding all grounds together to avoid differential potential.
Frequency Range: - Choose an arrestor model designed for the frequency range of your amateur radio equipment (e.g., HF, VHF, UHF).
Weatherproofing: - Ensure that outdoor connections to the Polyphaser device are well-sealed to prevent water ingress, which could lead to corrosion or failure.
Redundancy: - Multiple levels of protection may be necessary, especially if you operate in areas prone to frequent lightning storms. Use additional surge protectors on power supplies and control circuits.
Testing and Maintenance: - Periodically inspect the Polyphaser and grounding system for corrosion, damage, or loose connections.
- Replace arrestors after a significant surge event or as per manufacturer recommendations.
Installation Tips:- Entry Panel Integration: Use a bulkhead or entry panel to house arrestors where cables enter your shack. This provides a single point of grounding and surge protection.
- RF Performance: Check the insertion loss and VSWR of the arrestor to ensure minimal impact on your signal quality.
- Bonding: Bond all metallic structures (masts, towers, and antennas) to the same ground system for uniform potential and enhanced safety.
Using Polyphaser arrestors as part of a comprehensive lightning protection plan helps safeguard both your amateur radio equipment and your home
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