How Many TV Feeds Can I have for Saorview

Storm 10

Just wondering how many TV sets can I feed from one antenna on the roof for Saorview without picture quality loss. I am currently feeding two sets but want one in the bedroom also.

Peter Rhea

You can feed as many points as you like as long as you keep the signal level & quality within spec.

Are you using a passive splitter to feed your 2 sets? In the majority of cases amplification will be required once you split the signal more than 2 ways.

Storm 10

Peter Rhea wrote: »

You can feed as many points as you like as long as you keep the signal level & quality within spec.

Are you using a passive splitter to feed your 2 sets? In the majority of cases amplification will be required once you split the signal more than 2 ways.

Yes I am thanks for the info..

SalteeDog

Depends on how strong a signal area you are in and how much gain you are getting from your aerial. I'm feeding 3 TVs using a passive splitter from a wideband yagi aerial (nothing fancy) in my attic. I'm 50 miles from the Maghera transmitter. My analogue picture from same set-up is a little snowy but digital is perfect. (Also - I have removed the unshielded wall-plates I have - they are a significant source of signal loss).

Storm 10

SalteeDog wrote: »

Depends on how strong a signal area you are in and how much gain you are getting from your aerial. I'm feeding 3 TVs using a passive splitter from a wideband yagi aerial (nothing fancy) in my attic. I'm 50 miles from the Maghera transmitter. My analogue picture from same set-up is a little snowy but digital is perfect. (Also - I have removed the unshielded wall-plates I have - they are a significant source of signal loss).

I am in Galway so also pointed at Maghera, I am showing a receive signal of 96% on my settings, what are the unshielded plates you mention.

The Cush

Storm 10 wrote: »

what are the unshielded plates you mention.

http://www.satcure.co.uk/tech/wallplates.htm

Solair

DTT is still a very robust UHF signal. If you can see a decent analogue signal on the connection, and it's got an antenna pointing at the correct transmitter, then you shouldn't really have any issue with DTT.

If your analogue is not clear, or has intermittent interference, DTT will suffer from pixilation / freezing etc.

You can feed it out to as many points as you like. If the signal's weak, add a suitable UHF distribution amp!

It's nothing nearly as complex as satellite reception and not as sensitive to unshielded points either, as there's nothing broadcasting on UHF except TV.

Satellite signals use very high frequencies, and clash with devices like DECT mobile phones. So, if you've ANY serious leak in your cabling, you can lose channels.

UHF DTT should be relatively untouched by these kinds of problems.

SalteeDog

Maybe it's the wiring in my house but I've noticed the following causes of interference 'glitches' on DTT.

- Light switches
- Central heating thermostats activating
- Central heating boiler starting
- Washing machine starting cycle.

All very transitory so no major issue.

Storm 10

As a matter of interest should I be able to pick up RTE 1/2 and TV3 analouge signals with a digital antenna from Maghera.

Peter Rhea

Solair wrote: »

It's nothing nearly as complex as satellite reception and not as sensitive to unshielded points either, as there's nothing broadcasting on UHF except TV. . .

. . . UHF DTT should be relatively untouched by these kinds of problems.

It's far more sensitive to impulse interference though (the kind mentioned by Saltee Dog) than the higher freq. satellite IF. Anyway, the main problem with some of these cheap wallplates is straightforward signal loss.

Storm 10 wrote: »

As a matter of interest should I be able to pick up RTE 1/2 and TV3 analouge signals with a digital antenna from Maghera.

TV3 & TG4 analogue require the same kind of aerial & polarisation as for Saorview, RTE analogue from Maghera is vertically polarised band III VHF.
There's no such thing as a digital aerial.

The Cush

Storm 10 wrote: »

As a matter of interest should I be able to pick up RTE 1/2 and TV3 analouge signals with a digital antenna from Maghera.

There is no such thing as a digital antenna/aerial.

If you mean can you pick up analogue RTÉ/TV3/TG4 with the same UHF aerial as is used for Saorview yes for TV3/TG4 and no for RTÉ, VHF aerial required for the analogue RTÉ channels.

Storm 10

Thanks for the replies guys, appreciated