hello,


I just modified my home receiver to listen to DRM,
and I'd liked to share my thoughts with other listeners.
I'm not by no means an expert, just wired the mixer
into my Rx and tried to listen to DRM stations.
Signal input spectrum looks good and the software
successfully decodes the signal.
Problem is that 17-18 dB SNR is always needed in order to
get the audio, and such SNR is just too hard to get for me.
So far I have been unable to get more than 10-15 seconds
of audio in a row, and listening to the program is barely
impossible.
Searching over the net I found that DRM enthusiasts equipped
with DX type of rigs also get no audio below say 15-16 dB SNR.
My modified receiver is a Hitachi KH-WS1, not a DX performance
kind of radio, just a shortwave home receiver, but
DRM is meant as a long term replacement of home radios,
isn't that ?
With such receiver I have no problems listening to analog
european BCs, while the very same BCs (DW) are almost
impossible to hear via DRM.
I'm curious to know if I'm missing something or other listeners
have the same experience too.
If signals this strong are needed to hear DRM audio I think
DRM will have a hard time to replace analog broadcasting.



--
-- Maurizio Galaverni ceci n'est pas une pipe |