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what is the difference between normal Co-axial cable and satellite grade? Can I

what is the difference between normal Co-axial cable and satellite grade? Can I use normal cable for either freeview or satellite signal?

what is the difference between normal Co-axial cable and  satel
published on UK Free TV

The satellite cable is higher grade (ie, thicker), but the impedance of both is 75 ohms, so you can use satellite cable for Freeview, but not the other way round.

See also All about aerials

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Sunday, 1 May 2016

12:53 PM


It is unwise to mix cable types for satellite downleads. The UHF coax is poor at the frequencies used for the connection between the LNB and the satellite receiver inputs. The change in presented impedance at the cable junction can give rise to unexpected effects, such as some signals not being receivable but others seeming OK.

I would recommend changing the UHF (conventional TV) cables for satellite flyleads using 'F' connectors fitted carefully to avoid short circuits. You can use 'F' to 'F' couplers to join cables together but try to use only one maximum in each lead.

The problem you report could well be because of the use of TV cable and not satellite cable.

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MikeP's 3,056 posts GB flag
Monday, 23 January 2017
12:10 PM

I have moved into a new flat. There is an NTL box in the lounge but no cables attached. My neighbour installed an aerial on the roof a few years ago so she can get tv reception. What are my options? Many thanks

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Annie's 2 posts NL flag

2:23 PM

Annie : The NTL box will most likely be leftover from where a previous resident has had cable TV and isn't any use for Freeview. If you're in an area with strong signal (please provide a postcode so we can check) you might be able to get away with using an indoor aerial, but otherwise you'd have to get your own roof aerial put up, assuming there is no communal aerial system in the building.

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StevensOnln1's 3,601 posts GB flag
Sunday, 30 July 2017
11:16 AM

I have run a satellite co-ax cable from my sky dish to feed a second box in my daughters bedroom, No connections apart from at either end approx 20meterrun.
No signal is being received by the box, box is ok as I have changed with the other one in the lounge and all ok there.
What can be causing this?
Do I need to use the sky+ cable? is there any difference?

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darren's 1 post GB flag
Monday, 31 July 2017

11:18 AM


There is no such thing as 'Sky+' cable, it is a marketing ploy to charge extra for good quality satellite cable. All you need between the LNB on your dish and any receiving equipment is good quality satllite coaxial cable, not 'standard' UHF TV cable. I use either CT100 of RG6 as a minimum, but you can get lower loss cables at greater expense. As you cable run is just 20 metres you do not need ultra low loss cables.

The likely cause of your problem is either a poorly fitted F connector (with a piece of the outer shield touching the inner core), a failure of part of the LNB (though these are rare) or a failure of the receiver equipment. You say yopu've tested the box on the other signal feed, so check the connectors are both fitted correctly with no short circuit between inner and outer conductors.

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MikeP's 3,056 posts GB flag
MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Tuesday, 4 December 2018
1:42 PM

I have sky ,modem and receiver in one room but can't get any wires /cable to another room, but dish is over the room i would like sky in , so what do I actually need to run a cable from dish to new tv inc modems receivers tried wifi but thick walls interfering
many thanks
72 no not that savvy

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MICHAEL BURKE's 2 posts GB flag

9:02 PM

Michael Burke:

If you already have a feed from the dish to an existing receiver then you cannot 'split' those cables to feed a second set. You will need an LNB with at least 4 outputs, or better one with 8 outputs, and run two new satallite coaxial cables (not ordinary TV coax) into the room you want to use the service. One method used by installers is to feed the two wires through the wall edge of the window frame but you have to make sure the seal around the cables is good and ensure you have run the cables a couple of inches below the input point to act as a drip loop so that rain water does not get into the house. You will need four 'F' type connectors that screw onto the LNB outputs at one end and the input sockets on the TV/Sat box at the indoor end. These are not the same as the coaxial plugs used for terrestrial TV such as Freeview.

The alternative entry method is to drill through the wall with a masonary drill, feed the two coaxial cables through, with a drip loop again and then seal the hole with waterproof mastic. You can also place a cover over the cable entry point to improve the looks.

Or you have a contractor come and fit the cables for you.

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MikeP's 3,056 posts GB flag
Friday, 12 June 2020
jack obrien
4:13 PM

i have dish network in my home, iam cutting the cord my question is, the cabel from the dish is 3 cabels together how do i find which one i need to run to my antenae i also purchased your 4 port hdtv amplifier and your lna 200 low noise amp any input you can give me will be appreciated.
jack obrienb

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jack obrien's 1 post US flag

5:07 PM

jack obrien: Dish is an American satellite provider, cord cutting is not a term generally used here and your location is showing as USA, however this is a UK website which provides technical help with reception problems and does not sell amplifiers or any other products, so I think you may be trying to contact the wrong website (although someone may still be able offer some suggestions).

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StevensOnln1's 3,601 posts GB flag
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