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View Full Version : Why does Comcast Not use LMR400 if it's such low loss?



StormyNitesOnCB
01-02-2014, 06:36 PM
1.) Why does Comcast Not use LMR400 if it's such low loss?
2.) What is the loss factor on the Coax Comcast uses?
for HDTV and Hi-Speed Internet I would assume it has to be a Low Loss Coax.
3.) Is there better stuff they could use for their application but their just cheap and cutting cost?

Dave457
01-02-2014, 08:59 PM
They use commscope cable over here, not cheap stuff

Sent from my SGH-T599N using Tapatalk

the caveman
01-02-2014, 09:00 PM
Probably cutting cost or they found out what they use works better for the application its used for.

JesseJamesDallas
01-02-2014, 09:45 PM
Probably because Cable Company's use 75 ohm coax, where LMR 400 is 50 ohm...Daaaaaaaaa............

Gordon Gekko
01-03-2014, 04:56 AM
Well done JJD.

StormyNitesOnCB
01-03-2014, 11:53 AM
2.) What is the loss factor on the Coax Comcast uses?


Like LMR is ______.______ at 50 mhz and so on

BOOTY MONSTER
01-04-2014, 03:41 PM
they have signal amplifiers on distribution nodes .

but if you want the very best coax get some fiber optic coax ;)

Gordon Gekko
01-04-2014, 04:05 PM
Maybe some nitrogen cooled heliax is in order.

Gordon Gekko
01-04-2014, 04:10 PM
2.) What is the loss factor on the Coax Comcast uses?

This makes for an excellent homework project, albeit an easy one.
1) research which coax Comcast uses. (It will probably vary due to location and useage).
2) once found out, look up the loss.

A very wise technician once said "Google is your friend".

CBRN38
01-04-2014, 05:58 PM
fiber optic is what its all going to. and transmitting on the light spectrum

Gordon Gekko
01-04-2014, 06:54 PM
fiber optic is what its all going to. and transmitting on the light spectrum

Fiber optics IS transmitting over light.

JesseJamesDallas
01-07-2014, 09:00 PM
Fiber optics is "Old School"..AT&T is going wireless.....Someday soon, you'll have a little shoe-box size dish on the side of your house pointed down the street to a repeater... No more wires running from a pole to the house...It will be the phone company's version of the electric company's "Smart Meters".