|
|
| Re: Canarsie CBTC (98055) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: Canarsie CBTC |
|
|
Posted by SelkirkTMO on Mon Jun 13 10:45:30 2005, in response to Re: Canarsie CBTC, posted by Stephen Bauman on Mon Jun 13 10:40:52 2005. Well, just to continue in busting your chops for fun and giggles, the ONE benefit that "loop" enjoys is the ability to apply SERIOUS low pass filtering ... stuff that comes into RF and finds its way to the IF's (digital or not) is going to be dirtier merely by its presence at the antenna ... and yes, of COURSE I know about "DSP" ... but after years and years of doing it, I've come to realize that eventually - especially in "frequency hoppers" where the whole OBJECTIVE is to "look like noise," that random noise you might not have been expecting eventually catches up with the squelch, or more precisely the additive mixer ...Sorry for my comments - I was involved for several YEARS in the birth of "digital cable" ... and QAM was what I cut my teeth on. You'll see what the FCC finally gets its way and QAM16 is the norm for "broadcast." Ick. :( You can error-correct all you want, but when the noise floor comes up, hello "SEARCHING FOR SATELLITE SIGNAL" ... I'd HATE to see that in the subway. :( |
|
|
|