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#20
October 28th 04, 01:01 AM
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StephenH wrote: dxAce wrote in message ... StephenH wrote: It's shortsighted to write off DRM so soon. It must be given a chance. Sure, keep the QRM a coming.... As sarcastic as that may (be intended to) sound, you know, I know and I'm sure everyone else knows that is a serious point. DRM *is* causing serious problems to adjacent channels. The evidence is there on a daily basis, and if DRM is to grow this problem will only get worse. This is where the HFCC should come in. If DRM is going to be taken seriously, even by long-term hardcore DXers, then it can't be made to co-exist smack back in the middle of established AM broadcasts. There *has* to be a "DRM corner", on a few or all of the broadcast SW metre bands. Initally, a space of 50 to 100 kHz on each band, dedicated to DRM only broadcasts. Where this might be allowing more capacity than required for DRM in the meantime, it should allow DRM to grow a little more - possibly to the extent where it might begin to be commerically attractive/viable - with NO impact on existing AM broadcasts. As time goes on, increase the DRM "band" while reducing the AM band. AM doesn't need to disappear completely, nor do I believe it will. (Same with FM vs DAB/IBOC) But there must be more to it than this. Maybe I'm making it sound too simple, there *must* be a real, logical reason as to why this approach hasn't already been taken. Otherwise, doesn't this approach solve most problems with interference, whilst giving DRM the space it needs to grow a little more? I certainly agree with you. dxAce Michigan USA |
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