In article ,
"Stig Hartvig Nielsen" wrote:

"starman" wrote:
The success of DRM doesn't depend on perfect propagation
conditions. If it did, the proponents of this technology wouldn't
consider using it for ionospheric propagation. It's a matter of how
degraded the conditions can be before the digital signal can not be
decoded properly. DRM has considerable tolerance for poor
propagation.


I have to disagree.

After trying the first "stand alone" DRM receiver for a week now
(from MAYAH) - I must say that so far I haven't been able to listen
to ANY broadcasts in DRM without many, many breaks. With the built in
telescopic aerial hardly anything in DRM is receivable but with an
outdoor longwire aerial I do get a few of the VERY strongest stations
broadcasting in DRM, such as RN, RTL and DW. However, so far I
haven't heard anything souding reasonable. It is impossible to
follow a programme because when the signal fades out briefly the
sound will become very distorted and then disappear for a few seconds
or even several seconds - then the distorted audio appears again and
then clean audio for a while till the next deep fade.

As everyone knows - with AM you can easily follow a programme even
though there is some fading.

Either is the MAYAH DRM receiver very very poor - or DRM is only
usuable when you have a local, stable signal with no fading.

Your experience is what I expect from this technology on short wave and
I don't think it has anything to do with your particular receiver being
poor.

--
Telamon
Ventura, California