Best digital aerial for Three Rock Saorview

CD22

I,m 8km from three rock using a wideband digital aerial in the attic receiving
mpeg4 but don't have good reception.
According to mpegireland.com I should be using
a group C/D antenna with channel range 48 - 68
as I'm in a low lying area without direct visibility to three rock
transmitter.
Is such an aerial available and where could I get it?

Sam Russell

Wide-band should be OK. Try it outside.

Horizontal polarization. How is the TG4, and RTE 1 analogue reception.

I would try it outside, and maybe put an amp on.

watty

It's UHF, not Digital. No such thing as a Digital Aerial, that's marketing snake oil.
Attic is poor compared to outdoor.

Try different locations if you don't want to mount it outdoors.

Amp only if the cable is long.

CD22

It's a labgear labgt12 with 8 elements about 80cm long.
Is alignment critical as with a sat?
All channels very grainy, unwatchable even.
Only about 3metre cable run.
Am trying not to have to use an amp if possible.
Am quite near the coast about 30metres above sealevel.

Mr McBoatface

CD22 wrote: »

All channels very grainy, unwatchable even.

Unless that was a response to Sam question it sounds like you scanned in analogue channels and not digital.

watty

CD22 wrote: »

It's a labgear labgt12 with 8 elements about 80cm long.
Is alignment critical as with a sat?
All channels very grainy, unwatchable even.
Only about 3metre cable run.
Am trying not to have to use an amp if possible.
Am quite near the coast about 30metres above sealevel.

Alignment isn't critical at all.
About +/- 10 degrees will work. On satellite +/- 1 degree is a huge change.

grainy = Analogue.
Digital is never grainy. It pixelates and gets coarser as signal is poorer, especially on movement. A signal is poorer it "breaks" into coloured blocks or judders and "freezes". If far to poor you either get nothing or occasional blocky still picture.

CD22

jobyrne30 wrote: »

Unless that was a response to Sam question it sounds like you scanned in analogue channels and not digital.

You were spot on. I went back into setup and switched to digital.
Have unbelievable clarity now with only 9% signal strength!

Sam Russell

@OP
Consult the website www.mpeg4ireland.com which has a very good explanation of aerials and a tool to help you identify your most likely transmitter, and which type of UHF aerial would be needed, and then, using Google Maps, the direction to point. A fantastic resource.

Obviously, the OP knows the transmitter he will use, but the direction would be helpful.

reboot

Sam Russell wrote: »

@OP
Consult the website www.mpeg4ireland.com which has a very good explanation of aerials and a tool to help you identify your most likely transmitter, and which type of UHF aerial would be needed, and then, using Google Maps, the direction to point. A fantastic resource.

Obviously, the OP knows the transmitter he will use, but the direction would be helpful.

Good web site,perhaps a very silly question,I receive RTE on ch,54 only,am I receiving the whole o/p,what is happening on 53,57,and 63?
If you think thats silly,here's another one.Should I sometimes be seeing T2 HD signal on the Tempory channel? I can see BBC HD from IOM on ch 50.
Sorry if I wasn't paying attention,but there is such an explosion of threads on these subjects.

Peter Rhea

reboot wrote: »

. . . I receive RTE on ch,54 only,am I receiving the whole o/p,what is happening on 53,57,and 63? . . . Should I sometimes be seeing T2 HD signal on the Tempory channel?

Currently only one Saorview mux, channels above 60 won't be used.
RTE don't use T2, it isn't necessary for HD.

reboot

Peter Rhea wrote: »

Currently only one Saorview mux, channels above 60 won't be used.
RTE don't use T2, it isn't necessary for HD.

Thanks for that,am I getting my DVB-T2 and M Peg 4 mixed up.I know the latter is compression,the former a system used by BBC HD MUX?