kc8lzg
Member
I decided to feed my scanner with RG-6 Quad Shield but confused about proper lightning arrestor. Does the 75 ohm cable create an issue with 50 ohm rating on the arrestor? Does staying with the "F" connectors create another issue?
Lightning Arrestor for RG-6?
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mmckenna
I ♥ Ø
No, impedance difference between the two won't be an issue.
But you can get F-connector'd lightning suppressors.
But you can get F-connector'd lightning suppressors.
CanesFan95
Analog already is interoperable.
God, those are expensive.
mmckenna
I ♥ Ø
Yes, they are. But Polyphaser is a well respected company.
There are cheaper solutions. Lots of F connector suppressors out there.
Amazon.com: TII 212 Broadband Cable TV and Satellite Lightning Surge Protector 75 Ohm 5-1500MHz : Electronics
Amazon.com: TII 212 Broadband Cable TV and Satellite Lightning Surge Protector 75 Ohm 5-1500MHz : Electronics
www.amazon.com
kc8lzg
Member
Expensive for sure. I opted for the RG-6 because of the performance/value factor. I guess there is the option to use UHF adapters which would give me more arrestor options but that may not be the best plan either.
Id rather use an expensive polyphaser and know it works than a $30.00 amazon one hoping it will work. If your worried about protecting equipment skimping on the devise doesn't make sense to me. If you walk into pretty much any LMR tower site you will see polyphasers on every line from GPS to Lowband radios. They work and they work good.
A little confused with that first one. Do you not have to use a ground wire and connect it to a rod (or something metal that's ultimately in the ground)? Looking at their Install Guide, it doesn't mention that or show it anywhere.
mmckenna
I ♥ Ø
Yes, they all need to be grounded.
That one is designed for bulkhead mounting. Usually at a radio site, there is an entrance panel where the coaxial cable enters the building. Those bulkheads are grounded. This protector would be grounded through the mounting.
You can get mounting brackets for it, but I neglected to include that part. Good catch.
mmckenna
I ♥ Ø
If you look at the "hardware kit" list on this drawing, it includes the mounting bracket.
rural_radio
¿Por qué no Ø?
I totally agree about the quality of PolyPhaser's products, but I guess it depends what kind of equipment is on the other end of the coax as far as whether or not they're expensive. They're pretty much standard in LMR systems, and I wouldn't even hesitate to use them on a nice amateur station, but I can see how it would be hard to justify that price if there was only a Baofeng or an inexpensive scanner on the other end.
If the OP is on an RG-6 kinda budget, and replacing the receiver would be cheaper than installing a PolyPhaser, I would even consider just using the type of grounding block typically used when a satellite or CATV line enters a building.
This should be fine for RG6 at $25:
The main goal is to ground the outer shield of the coax and this has basically the same replicable gas plug as many other brands to protect the center conductor path.
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The main goal is to ground the outer shield of the coax and this has basically the same replicable gas plug as many other brands to protect the center conductor path.
I used this to attach my Polyphasers (I use 3) to, then ran a #6 ground wire from it to my ground rod. If you watch eBay you can usually find them for less $, I paid about $25-30 each for mine, and they were brand new.
MURRAY ECLX072M Ground Bar Kit with 15 Terminal Positions - Circuit Breakers - Amazon.com
MURRAY ECLX072M Ground Bar Kit with 15 Terminal Positions - Circuit Breakers - Amazon.com
www.amazon.com
CanesFan95
Analog already is interoperable.
I use Diamond arresters and they're like half the cost of PolyPhasers.
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