In article , Christian McArdle
wrote:


"Digital" is just code for wideband, which is (a) rarely required for
analogue transmissions that are designed to be in in-band (except maybe
Channel 5) and (b) requires considerable redesign (specifically of Yagi
arrays) to achieve satisfactory results.

A digital spec aerial is a great deal more than just a "wideband". In fact
an aerial can have been passed as conforming without being wideband. The
differences are manyfold, not the least of which is the prescence of a
balun.

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AJL Electronics (G6FGO) Ltd : Satellite and TV aerial systems
http://www.classicmicrocars.co.uk : http://www.ajlelectronics.co.uk