Coaxial Power Surge and Lightning Protectors
In the event of a lightning strike, protecting your expensive transmitter from a potentially destructive power surge is obviously an important precaution.
A Coaxial Power Surge Protector installed in the cable line will give your valuable transmission equipment the best chance of survival.
A Ground Earthing Kit is vitally important as well.
To be effective, the body of the surge protector must be attached to a well grounded part of the structure. Following any lightning strike, the power surge protector will most likely have have been destroyed and therefore need to be replaced.
RF MAX Coaxial Power Surge Protectors
Our RF MAX N-Type coaxial gas tube type power surge protectors offer clients a low cost solution with absolutely no compromise in quality of construction or reliability.
Suitable for frequencies up to 2.5 GHz and 40 watts power, in the event of any power surge over 230 Volts DC, the fast response gas filled arrestor instantly fires clamping the voltage between the inner and outer conductors of the coaxial cable. This virtual short circuit diverts the power surge to ground, protecting your transmitter from damage.
They may be installed in various positions, including bulkhead mounted through a wall or cable entry plate. The optional GM6 slotted "L" bracket is available separately to secure the surge protector to any flat surface with screws or bolts. 
FLA1792 Coaxial Power Surge Protector, flange mount through a wall
Suitable for frequencies up to 2.5 GHz and 40 watts power, this RF MAX model FLA1792 coaxial power surge protector is specifically designed to be flange mounted through the wall of the building where your transmitter is located.
The wall can be up to 12 mm thick. Drill 4 holes as per the mounting diagram. Position the two solid nickel plated brass flanges either side of the wall and secure the power surge protector in place by tightening the 3 screws provided.
The surge protector is fitted with N-female connectors each end and the outdoor to indoor cable transition is easily weatherproofed using a non-acetic silicon sealant.
In the event of any power surge over 230 Volts DC, the fast response gas filled arrestor instantly fires. Following any lightning strike, the coaxial power surge protector will need to be replaced. 
NOVARIS Coaxial Power Surge Protectors
NOVARIS manufacture a range of fast response gas tube type coaxial surge protectors to suit the most common Male and Female connectors used :
- N-Type (N-Female models can be bulkhead mounted)
- BNC
- 7/16 DIN (no mounting bracket option available)
- F-Type
- UHF
- TNC
For standard models the maximum operating frequency is 2 GHz. For higher frequencies up to 3 GHz, there are N-Type Male and Female combinations available which also feature a replaceable gas discharge tube.
The clamping voltage of the surge protector must be greater than the peak voltage on the line. This is particularly important when used for transmitting applications. Also, the voltage of the gas filled surge arrester must be selected according to the power level of the equipment that is to be protected. For example, a 100 watt transmitter would be protected with a 230 volt gas-filled surge arrester.
| Power at 50 Ohms | Sparkover Voltage |
|---|---|
| 0 to 40 watts | 90 Volts |
| 40 to 125 Watts | 230 Volts |
| 125 to 300 Watts | 350 Volts |
| 300 to 800 Watts | 600 Volts |
| 800 to 1,000 Watts | 1,000 Volts |
| ORDER CODE | Connectors | Power Range | Sparkover Voltage | Max Frequency |
|---|---|---|---|---|
| CN-FF-90-2 | N-Female to N-Female | 0 to 40 Watts | 90 Volt DC | 2 GHz |
| CN-FF-230-2 | N-Female to N-Female | 40 to 125 Watts | 230 Volt DC | 2 GHz |
| CN-FF-350-2 | N-Female to N-Female | 125 to 300 Watts | 350 Volt DC | 2 GHz |
| CN-FF-600-2 | N-Female to N-Female | 300 to 800 Watts | 600 Volt DC | 2 GHz |
| CN-FF-1000-2 | N-Female to N-Female | 800 to 1,000 Watts | 1000 Volt DC | 2 GHz |
| CN-MF-90-2 | N-Male to N-Female | 0 to 40 Watts | 90 Volt DC | 2 GHz |
| CN-MF-230-2 | N-Male to N-Female | 40 to 125 Watts | 230 Volt DC | 2 GHz |
| CN-MF-350-2 | N-Male to N-Female | 125 to 300 Watts | 350 Volt DC | 2 GHz |
| CN-MF-600-2 | N-Male to N-Female | 300 to 800 Watts | 600 Volt DC | 2 GHz |
| CN-MF-1000-2 | N-Male to N-Female | 800 to 1,000 Watts | 1000 Volt DC | 2 GHz |
| CN-FF-90-3 | N-Female to N-Female | 0 to 40 Watts | 90 Volt DC | 3 GHz |
| CN-FF-230-3 | N-Female to N-Female | 40 to 125 Watts | 230 Volt DC | 3 GHz |
| CN-FF-350-3 | N-Female to N-Female | 125 to 300 Watts | 350 Volt DC | 3 GHz |
| CN-FF-600-3 | N-Female to N-Female | 300 to 800 Watts | 600 Volt DC | 3 GHz |
| CN-FF-1000-3 | N-Female to N-Female | 800 to 1,000 Watts | 1000 Volt DC | 3 GHz |
| CN-MF-90-3 | N-Male to N-Female | 0 to 40 Watts | 90 Volt DC | 3 GHz |
| CN-MF-230-3 | N-Male to N-Female | 40 to 125 Watts | 230 Volt DC | 3 GHz |
| CN-MF-350-3 | N-Male to N-Female | 125 to 300 Watts | 350 Volt DC | 3 GHz |
| CN-MF-600-3 | N-Male to N-Female | 300 to 800 Watts | 600 Volt DC | 3 GHz |
| CN-MF-1000-3 | N-Male to N-Female | 800 to 1,000 Watts | 1000 Volt DC | 3 GHz |