Just been doing a bit more digging. My aerial is what ATV call an XB16A, which is group A. Gain does very well up to about ch 42 then plummets to 0 by ch 45. So looks like it'll be useless for ch 55 & 56.
No, not really. Group T aerials have it built in to the aerial - probably with a stub notch filter.
That's why you want a T and not a W.Using an aerial to gather those (wideband) will have less gain and be more likely to pick up 4G interference
The ones prescribed by HM Government via Ofcom, to satisfy the phone companies' desires for ever more bandwidth, so kids can watch HD movies on 3 inch screens with shitty sound delivered via tiny little transducers stuck in their ears, and can crash into you as you walk along the pavement (or cars as they step out into the road) because they aren't looking where they are going nor listening to their surroundings.
I'm still reasonably nimble on my feet, but dodging the idiots playing with their smartphones rather than concentrating on where they are going is getting a bit wearing. Unfortunately, because they are listening to...
...they don't hear me mouthing obscenities at them.
But ... While undertaking the 700MHz clearance they've taken two muxes from group A (the opposite end of the TV spectrum), put them miles out of group, and put them well into the 700 MHz range. I find it hard to believe this was the best they could do. (I'm being polite, I couldn't publish my actual thoughts.)
Why dodge them. You are expecting the coming together, they aren't. Guess who will come off worse?
It is, and it's only temporary until they turn them off altogether. You cannot condense 21-69 into 21-60 and then 21-48 without major reshuffling and implementation of SFNs for COM7/8 whilst keeping all existing services running, not introducing major interference problems, and keeping neighbouring countries with international agreements happy. Something HAS to give. And what gives is your aerial grouping.
You need some Rosa Klebb style spikes on your footwear. Oh dear, we're back to the Russians again...
We are about 20 miles away and in the midst of a lot of trees, and I think there is probably some land in the way too, so the signal isn't great.
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Like everybody else, your aerial is now the wrong group and is giving marginal reception on channels 55/56.
It's that what you've got? If it's what you are thinking of getting, then't don't! It's group A, which is not what you need. You need a group W (or T preferably). It's also quite expensive.
If you're in a weaker signal area then that makes sense, but he's in sight of CP with a loft aerial! A cheap wideband will be perfectly adequate.