Bonding sheath of MIMO antennas.

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darekelec

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nyc
I would like to install 2 external antennas for a cellular modem on a single family house. Should I bond the sheath of cable entering the house?
modem/router is running on 12vdc and is plastic so there is no equipment ground present.
My antennas are
poynting.tech

XPOL-2-5G-US

X-Polarised, High Gain, Uni-Directional LTE/5G Antenna (2X2 MIMO)
poynting.tech poynting.tech

This is for my family so I prefer to do it better.
 
The existing electrode is 30 ft away, I know rg6 bond should not exceed 20ft so I’m thinking drive my rod and connect the 2 .
The is no connector I am aware of that can bond 4 awg solid to this type SMA (M) connector
 
Code only requires that the sheath be grounded (but you have to all of the coax cables). So you could put SMA feedthrus on a meal plate and ground the metal plate. Using the lightning arrestor above is fine too, and you may want to buy a spare glass capsule or two should it ever blow out from a strike. But needing 4 will get pricy (and SMA feedthru's may not a lot cheaper).

Grounding conductor needs to be at least #10 copper, but going larger may give you some grace for protection from physical damage. Mast needs grounding too.

Do you have an intersystem bonding bridge?

Code sections: 810.6, 810.7, 810.20, 810.21
 
I don’t have the inter system bridge . There is nothing to interconnect anyways . Cell phone is landline , tv is internet . It’s only the antennas I will install will require bonding.
Is there a bigger benefit to installing the arresters versus just the plate ? They decrease signal by 0.4 dB
How can one tell if the glass capsule is blown?
I have never used this device.


I am installing T Mobile home internet modem/router. It is a really good internet option of people in rural area. The trick is even if the service is not available in your area they don’t enforce geolocation so if your friend from the city they offer the service orders one you can install it in the country and have no caps unlimited internet for 50$ a month, no contract. Taxes included. In this foresty area I am getting 70 mbps down and 6 up.
it’s worth buying the above antennas because they connect to band 71 which is a rural novelty.
There are some videos on you tube explaining the service and the device.
 
I don't think it matters whether you have anything to interconnect or not. The interconnection bridge is just the location where you land your bond wires for the communications utilities.
 
I'm not sure how you know the capsule is blown by looking. It may be black like a blown fuse, but not sure, as it just contains gas. If it is blown, then the arrestor is basically just a feed thru. The reason I said to buy extra capsules is that I don't think there is a standard for them and these arrestor companies come and go -- you may not be able to buy a replacement if you need it.

I've used these before, and you can probably always get replacement discharge tubes for them. But they cost a fortune: https://www.hubersuhner.com/en/products/radio-frequency/lightning-emp-protectors

Any feed thru or arrestor or coupler or adapter is going to have a loss. I don't think I'd worry about it.
 
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