Thread: 100M Power levels went up a notch and speed down?
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Old 10-12-2012, 18:15   #21
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Re: Power levels went up a notch and speed down?
Quote:
Originally Posted by horseman View Post
1. The inference above could be interpreted that 8 channels is equivalent to 40MHz? Obviously 8 (euroDOCSIS 8MHz d/s) channels would be 64MHz capture window with 8 adjacent channel constraint and thus 40MHz corresponds to only 5 adjacent channels?. That (8 adj channel constraint) of course only applies to minimum Standard Receive Connection Profile and as I'm sure you know the CM initially transmits a minimum of both a Std RCP and a Vendor specific RCP to CMTS so perhaps you know for certain which one any specific CMTS is actually using?

2. Equally "VMNG300 has a 126MHz tuner but only 20MHz bandwidth" seems to make little sense to me as neither appear to relate to adjacent channel capture window? Clearly I've misunderstood the context, perhaps you'd be kind enough to clarify?
Duuuhhh... Somehow I managed to get 5Mhz channel width into my head instead of 8Mhz when doing those calculations... Serves me right for posting at 5am.
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