In article ,
Mark Carver wrote:
Don Pearce wrote:

That should do nicely. I know DAB is supposed to use mulitpath signals
actively, but I did some simulations ages ago, and you still get much
better performance by choosing the nearest transmitter and aiming a
directional antenna at it.

As an aside. I've always used my vertical Band II (aka FM band) dipole
for DAB, it works very well, pulling in distant muxes from miles away.
I lashed up a properly cut dipole for DAB (225 MHz), and stuck it
nearby. It was no better (or worse) than the Band II.

I know that theory - but had no success with it. My 4 element band III
works fine for FM when horizontal but is dreadful on DAB - and I'm in a
strong signal area. Swing it vertical and the DAB is fine - but FM noisy.
It's feeding a DA which feeds four tuners. The aerial is easy to get at as
it's accessible from my roof terrace and has clear line of sight to the CP
and Croydon transmitters - both of which are close to the same 'line'.
Removing the DA and plugging in the aerial direct makes no difference.

Of course the Band II dipole is half wave within its band, but full
wave(ish) in the DAB band.

Yes. Yet in my case a simple omni DAB aerial diplexed into the horizontal
FM one works fine - although I'd love to know why the vertical aerial
doesn't for FM.

I split the feed passively between my FM tuner in the living room, and
DAB 'Midi' system in the kitchen.

I have a second FM aerial mounted at the top of the house - horizontal -
which feeds just the one combined FM and DAB tuner. That works well on
both.

--
*A conclusion is the place where you got tired of thinking *

Dave Plowman London SW
To e-mail, change noise into sound.