DVB-T Freeview - repeated channels, which frequency?

Mud · 13 Mar 2008 at 16:23

I've just got a new aerial and amplifier in order to sort out a few niggles and now I'm confronted by twice as many channels to choose from. Is it a case of the different frequencies carrying exactly the same signal, or is there any difference/benefit to choosing higher frequencies? Vista's Media Centre seems to have chosen mostly low frequency channels (I'm under Mendip and live 1/2 way down a sort of mini-valley).

I've searched about, but can't find an answer.

Tesla · 13 Mar 2008 at 18:05

Where abouts in Bristol are you mate?

There are 2 sub-transmitters in Bristol so i expect you are picking one of those up.

The easiest solution to this is to either buy a filter or plug in the aerial after it's scanned the lower frequencies.

Mendip digital starts on channel 55 (716mhz) so plug it in just before then, not too much before or you will pick up the tail end of one of the local (sub) transmitters.

Mud · 13 Mar 2008 at 19:19

St George. Knowing that Mendip is 716MHz+ I can manually prune in 'edit channels'

I don't think I can pull/plug-in the aerial mid-scan as Media Centre only gives you a % and not the frequency sweep information.

Can you point me at (or give me a brand name of) a filter? These're news to me and I'd like to look them up.

Tesla · 13 Mar 2008 at 19:22

Well as you may of noted I am also in Bristol and have access to trade suppliers so will look them up in my trade books for you and post back later on

They start about £200 for a programmable one though so I think the prune method would be better.

If you add me to MSN then I can send you an excel file I use for work which contains the mendip frequencies if you can do a manual add channels in media centre?

carpmaster · 13 Mar 2008 at 21:13

Channel filters can be bought for about £65+VAT but what's the point if you can just manually remove unwanted frequencies!!

Mud · 14 Mar 2008 at 01:06

Thanks Tesla, I'll gladly take the file...I think I'll opt for the manual method for now, although I can see that starting to grate given Media Centre's tendency to occasionally lose the listings! I've not seen an option to manually add channels; you scan, it selects what it thinks is right (sometimes more, sometimes less), then you can add/remove the other possible channels it detected in the guide options.