All posts by Matt Clarke
Below are all of Matt Clarke's postings, with the most recent are at the bottom of the page.Crystal Palace is terrible with all the hills. Midhurst is OK with MUX D being a bit intermittent. As for Guildford, even though I can almost see it, I found that lifting my aerial (UNIX 100) by five feet up made the difference between Mux 1 perfect, the rest none to all being perfect.
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I don't really need the UNIX 100, I just got it cheap (£17). I also have a dat 75 on Midhurst, even though a log works fine. The DAT 75 is on a rotor, so I can DX.
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According to the UKFreeterrain maps, I have a better line of sight to heathfield than crystal palace and Hannington. I get perfect analogue from Hannington with a 18 element unamplified contract aerial. To get crystal Palace I need a UNIX 100A on a 20ft guyed mast with a mast head amp just to get a signal.
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P
Idle (Bradford, England) Full Freeview transmitter | free and Friday 22 April 2011 9:14PM
Marlborough
You do not need a wideband aerial, just a group K which will have a lot more gain. Look at aerialsandtv.com gain charts and data.
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How? Look halfway down Aerials, TV Aerial and Digital Aerial in "graph of typical gain curves for.....". The group K aerial has the most gain around channel 49 (arqmuxB), even though they are only intended for (21-48). Or you could Use a group B. (SN84ND)
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Or it could be restricted radiation patterns, but if it worked before, it should now. Thus I think Brianist's advice is the best.
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Based on previous posts, Guildford is actually a comparatively powerful relay. You get ones like dorking that pump out some 7w.
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Since both fall within group E you can't combine them. Brianist- you do an amazing job of a hard task.
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Tuesday 5 April 2011 10:16AM
Godalming
Heathfield does not radiate to the west.