Hi, I'm very glad the subject of DRM has been mentioned on list.
I bought a DRM radio quite some time ago and I have intended to write a few note about the unit but time got away from me as is often the case. Just to put those who don't know what DRM is into the picture and no we're not talking Microsoft's Digital Rights Management <smile> DRM in this instance refers to Digital Radio Mondiaoe, Mondaioe meaning World-Wide. The standard is open so anyone can use it without a license fee thus DRM has found a foothold in many applications including Shortwave broadcasting and - in some parts of the world - on the AM and FM Broadcasts bands. DRM - like say DAB - can transmit text beside the audio system and can be deployed in a number of ways. On the Shortwave bands its usual to find DRM broadcasts taking up a single 5KHZ frequency whereas on the AM Broadcast band DRM broadcasts might either take up a dedicated frequency or be shared with a standard AM broadcast transmission, the idea of the latter being that if the DRM signal is too weak for the receiver to receive then the receiver locks on to the analogue portion of the frequency. So that's a short summary - as far as I understand it - on how DRM radio works and I promise I will write more on my DRM Radio shortly.
