Carry Sky over Chorus cables

Clum

Hi,

I'm subscribed to Sky but want to set up a (limited) version of multi room without subscribing for a second Sky viewing card.

I have a spare Sky box and want to set it up in another room, but need to know if I can carry the Sky signal from the dish across the Chorus cables that my house has been precabled with.

I understand that not having a second viewing card will limit me to free-to-air channels on the spare box but I'm fine with that.

Any ideas if I can run the Sky signal from my Dish to my Chorus cables (by connecting to the Chorus connections at the side of my house) and from the Chorus outputs to the Sky boxes?

Thanks.

TVDX

If Chorus have left behind coax cable, then yes, it can be used.
Purists will tell you to tear it down and put up better cable but it will do the job.

watty

Bad idea. Chorus cables are weatherproof VHF. (180 .. 400MHz approx)

Satellite needs better cable CT100 or better.
Fatter and copper foil on copper braid.

Satellite uses 10,700MHz to 12,600MHz on dish, converted by LNB to about 800MHz to 2000MHz on cable to receiver.


You need a Dual or Quad output LNB on dish too. The receiver selects one of four "modes" or "banks" of channels by sending signals to the LNB. Each receiver needs a separate connection.

Also you create interence to other services using poor Cable TV cable. The LNB has an IF Amplifier and the cable will radiate interfernce possibly from 700MHz (Some TV channels) to over 2000MHz (Mobile phones, wireless barcode scanners, DECT handsets, ATV, PMR864 walktalkies). Also with inadequate cable these things can interfer with the satellite signal, esp. Phones and other nearby transmitting devices.

TVDX

To be fair I used existing Chorus cables and I have never had a problem.
In fact the signal rate is the strongest most robust of all the boxes.

Raytown Rocks

Hey Clum

As posted earlier on the entertainment forum, the guys here know their stuff.
Watty is very experienced at this stuff and knows what he's talking about.

That said it has worked for some people, so it could be a matter of give it a try and see what happens in your particular case.

Chef

watty

TVDX wrote:

To be fair I used existing Chorus cables and I have never had a problem.
In fact the signal rate is the strongest most robust of all the boxes.

maybe I'll spin by and see how much interference you're generating

Never recommend technology because it works for you unless:
(1) You know it is the correct method.
(2) You have a confincing technical explination.
(3) How do you know that the cables are "typical".

watty

The most important bits if you ARE using existing cables:

1) Each Sky box needs a separate LNB or a separate connection on a Quad LNB ( www.satellite.ie)

2) Make sure inner of cable is not damp and there is no corrosion

3) No splitters or amplifiers can be used (see (1) )

4) Make sure no electrical short between briad and inner core.

JohnC.

I assume the above advice applies to NTL cabling too? We are getting Sky installed next Tueaday and getting rid of NTL MMDS. I was hoping to use the existing NTL cabling if possible, as it would make things easier. But if replacement is advisable, out the old cable goes.

Kensington

Kahless wrote:

I assume the above advice applies to NTL cabling too? We are getting Sky installed next Tueaday and getting rid of NTL MMDS. I was hoping to use the existing NTL cabling if possible, as it would make things easier. But if replacement is advisable, out the old cable goes.

Wouldn't you be getting cable free as part of an installation? You might as well get brand new cable installed while you're at it!

com7

chorus cable goes to 1 ghz not 400 mhz as previousely stated

I would like to concur with watty.
I used an existing chorus mmds cable for a spare sky box when I ditched chorus...
It worked for a while but often had "no signal received"
This became permanent.

Buy ct100, it will last practically for ever if not chewed.

watty

com7 wrote:

chorus cable goes to 1 ghz not 400 mhz as previousely stated

And CT100 will go to 3GHz.

But with 20ft of CT100 you will entirely lose a 2.4GHz WiFi signal.

For wiring VHF radio repeater (130ft cable run) I use a coax cable that is 1" diameter and you use a pipe cutter prepare cable to screw on the the enormous compression N-Connector.

The choice of cable is related to application, frequency and distance.

I'd use no more than 16" of Chorus cable at 1GHz.