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Note: is everyone called Andrew lately?
FM on certain channels still sounds better
QuoteFM on certain channels still sounds betterYes - it certainly does. Have you looked at the bit rate used by some of the digital channels? Reception may be free from interference but it is heavily distorted by the original coding. 'Digital' is not synonymous with 'high quality', by any means.
Now I know why my new DAB just dosn't sound the same as the good ol' radio. Mono - most channels?!? LOL - now it makes sense.I've read techminds post probably about 10 times just now but I think I'll give up... I gather it's all rather complex and for a general non-techie like moi it's kind of hopeless. But one thing I still would like to know - not in great detail but just plain english please if possible:DAB radia will eventually go interactive... or so I've heard.Now just how is that supposed to work?be gentle to a technically challenged person 
Energy consumed per viewer internet vs dab radio
At Crystal Palace, there are UHF Klystron Transmitters, consuming something like 1MW of electrical power for each TV channel.The antenna is a large 'aperture' and has a radiation pattern which beams most of the radiated signal in vertical horizontal directions where it is wanted and reduces the amount of power delivered upwards or into the ground. The more complex the antenna, the more efficient the coverage can be.
Those were not accidental mistakes. The vertical radiation pattern is at least as important as HRP - particularly if you are in the middle of your service area. Main stations are invariably in the middle because it is not possible to have a large horizontal aperture array at several hundred metres up a mast - so you can't have a narrow horizontal beam. I don't know of a main station with what you would call a highly directional HRP.VRP has to be tailored to be in a vertical range from zero in the horizontal direction to a peak about 30 degrees below. In fact, a lot of the power would be pointed 'into the ground', because that is where the receivers are (or 10m above).