coax only surge supressor

We may earn a small commission from affiliate links and paid advertisements. Terms

Briansol

Admins
Admin
VIP
can anyone find this? basically, I am looking for something like this:
Amazon.com : Tripp Lite HT10DBS Home Theater Isobar Surge Protector 10 Outlet RJ11 RJ45 Coax : Battery Backup Tv : Electronics

but without power outlets. I ONLY want to run my cable wire through it.

and it must function without power.

im planning to install it at the 'road' where it comes in to the electric room in the house, and simply don't have power there or the need for outlets. I just want coax surge protection.

does it exist?

I have like 6 coax outlets plugged in now after you factor in TV's and internet stuff, and it just makes more sense to clamp it at the source instead of each destination.
 
I may be wrong. But I'm not sure a surge protector/suppressor can function without power
 
That's your solution.

A coax signal isn't measured in volts. It's measured in MHz. It's a signal wire. Not power.

Honestly I've never found the need to surge protect coax. I've never seen any electronics damaged from a coax surge. IMO it's along the same lines as buying Monster HDMI cables. Not necessary.
 
Last edited:
if lightning hits the wires directly, it will travel in that way.

between the modems, phones, and tvs, there's several thousands of dollars hooked up to it. spending 20 or so on a protector is a slight piece of mind at the very least.
 
if lightning strikes the lines directly, i dont think that little protector is going to protect much lol. youre talking millions of volts at that point. when it only takes 10,000 - 20,000V to arc across 1" gap of discontinuity.

but the chances a direct strike like that are astronomically low.

i just think youre worrying about something that you dont really need to be. it would be like me asking you how worried you are that your car will be struck by lightning.
 
Can I get surge protection over my wireless signal too?
 
surge protection on incoming coax line -- needed or not? - Ars Technica OpenForum

reply #1 :
A lightning strike is far more likely to come in through the power line unless you have your coax running from the telephone pole (old neighborhood). Even then, a cheap surge protector will not stop lightning.

a quick google search reveals MANY people having issues with the surge protector messing with the signal and causing a wide range of problems. most people recommend to remove the surge protector and that making sure the coax is properly grounded is ultimately more important
 
Last edited:
ok that begs the question, how do you check that the coax is grounded? (other than the obvious of looking for a ground wire on the cable itself.... which im pretty sure I don't have)
 
Set your multimeter to the AC voltage scale. Touch one probe on the outer exposed screw part of the coax cable and stick the other probe into the round hole of a nearby power receptacle. If there is a good ground connection then the measurement should be very close to zero. Or if your multimeter has a continuity mode do the same test and it should beep if you have solid ground.
 
If you're really worried about grounding issues then you could use a 2-way (Y) splitter and have one path go to a grounding rod/strap. Have you had any symptoms of grounding or short-circuit related issues?
 
No.... I was just looking at getting a new multi surge strip for my room, and I was thinking why am I only going to stop the cable surge here when my router and other tvs are wide open to it... go for the source.

FWIW, I usually have no idea what i'm doing. :p
 
what was it rated for? (joules) was it a hit on the house, or on the wires itself
 
I've been trying to make a 1.21 gigawatts comment since I first saw this thread. Oh well.

docsg3.jpg
 
So, to confirm, you need coax only? 75 Ohm I take it?

For coax, it's called a lightening arrestor. But there's a catch, you NEED to have a good earth ground -- not a cold water pipe, a legit earth ground.

DX Engineering Coaxial Lightning Surge Protectors DXE-RLP-75FF - Free Shipping on Orders Over $99 at DX Engineering
Amazon.com: TII 212 Broadband Cable TV Lightning Surge Protector: Electronics
yeha, current set up is grounded to a pipe... looks like incoming from street water.
 
So, to confirm, you need coax only? 75 Ohm I take it?

For coax, it's called a lightening arrestor. But there's a catch, you NEED to have a good earth ground -- not a cold water pipe, a legit earth ground.

DX Engineering Coaxial Lightning Surge Protectors DXE-RLP-75FF - Free Shipping on Orders Over $99 at DX Engineering
Amazon.com: TII 212 Broadband Cable TV Lightning Surge Protector: Electronics


keep in mind both of those are only rated to 1000MHz.

i foresee some signal quality issues with these things in the loop.
 
Back
Top