Ground Wire
Ground Wire
Is it safe to run a ground wire over a rain gutter? Its the only way to get the ground wire from my antenna to the grounding rod. I'm just concerned that if there's a lightning strike, it will go through the gutters and ignite the roof.
If your ground is more then 50 ohms, which when most people ground their stuff they are, electricity will travel the feedline and not the ground. This is the reason so many radios go poof even when there is a ground.
Also why do so many tvs get teared up with fiberglass base antennas?? The ground can act as a part of the antenna, and create horrible amts of rf. A proper ground will work well. But the best prevention, is unhook your coax!
Also why do so many tvs get teared up with fiberglass base antennas?? The ground can act as a part of the antenna, and create horrible amts of rf. A proper ground will work well. But the best prevention, is unhook your coax!
Ground
What i do is run a SINGLE point ground. The telescopic antenna mast is grounded to an 8 foot ground rod. I have a polyphaser coax discharge unit inline. The polyphaser unit is mounted to a copper entrance bus which is also connected to an 8 foor ground rod. I have a chassis ground bar under my desk which the chassis of all my equipment is connected to and also connected to the entrance ground bus. If this is confusing check out the polyphaser website. They have diagrams and you can see the units there. This setup is similar to the commercial tower ground. And yes I was running a fiberglass antenna (shakeseare ABS 1600). Now I just ordered the Excalibur through radioactive. Static charges build up on antennas too that need to be shunted to ground. Especially with an aluminum antenna.
:Peace!: dalonzi :Peace!:
That's the best ground setup I've seen short of a commercial station. That will protect even a direct strike, which most won't. The common goal is to prevent damage from a lightning strike, but realistically most setups will just do a good job at static discharge. With a ground wire from the antenna mast to a ground rod, chances are you'll still suffer damage in a direct strike via coax, like RA mentioned.
That's the best ground setup I've seen short of a commercial station. That will protect even a direct strike, which most won't. The common goal is to prevent damage from a lightning strike, but realistically most setups will just do a good job at static discharge. With a ground wire from the antenna mast to a ground rod, chances are you'll still suffer damage in a direct strike via coax, like RA mentioned.
grounding.
I have the polyphaser units inline because I dont want any current coming into the shack. I had a radio damaged once just because of lightning strikes in the local area. I have VHF and UHF radios as well as receivers that coost a bit too much not to have protected. I just ordered an Excalibur antenna from RA and aluminum makes me nervous. I would not have up without protection. If you suffer from a direct strike. Oh well. we start from scratch again.