Cabling recommendations for 25' dual runs from modem to LTE antenna

Topics related to WiFi Antennas
Post Reply
rwidebrook
Posts: 1
Joined: Tue Aug 27, 2019 7:01 pm

Cabling recommendations for 25' dual runs from modem to LTE antenna

Post by rwidebrook » Tue Oct 01, 2019 9:19 pm

Hi everyone. I've got my first build/use of "fixed wireless internet" equipment, namely the WE826-T2 + MC7455 in stock form. My question here involves choosing a 50 ohm cable for a proposed 25' run from modem to rooftop LTE antenna. I'd like to hear your experiences and recommendations.

I get "just fair" 4~5Mps download speed in a Sprint fringe/roaming zone, by optimizing placement of the modem and its standard 3dB rubber antennae. The modem usually is operating on Band B41, with "not bad" at!gstatus? results, so a good antenna+cable setup seems a natural next step.

25 feet isn't such a long run, but I'd like to balance my choice of a suitable low-loss cable between performance and price. I'm leaning toward 5D-FB or LMR-240 due to their good attenuation specifications. I've eliminated RG-58 and RG-174 as being lower performance, and LRM400 as being overkill. Here's one interest: https://www.amazon.com/gp/product/B07JP ... SQKY&psc=1

What experiences and recommendations do you have?
Thanks, Rick

swwifty
Posts: 463
Joined: Thu Aug 30, 2018 8:21 pm
Location: NE GA Mountains

Re: Cabling recommendations for 25' dual runs from modem to LTE antenna

Post by swwifty » Thu Oct 03, 2019 2:36 pm

You most definitely don't want to skimp on cheap cable. Especially if you are going through all the effort of running it to the roof.

I did some quick calculations and on Band 41 (2500mhz) LMR 400 only loses about 2db of signal for 25ft.

That 5D-FB (which i've never heard of) best I can find loses about 3db of signal for 25ft. I'm not 100% sure that is right, but it's what i found online.

I'd go with LMR400. I have two 10ft runs of it on my roof and don't regret the extra expense after all the work I went through to get it up there.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post