[TowerTalk] HD Over-the-air TV

Jim Brown jim at audiosystemsgroup.com
Tue Mar 7 22:30:01 EST 2006

On Tue, 7 Mar 2006 17:39:43 -0500, Dave Zeph wrote:

>I get the impression that some folks have activated their DTV Signal mainly
>for compliance, but don't think they have enough HD-equipped viewers.  So
>they take the attitude that they don't want to "waste electricity heating up

This is what I heard several years ago from my TV broadcast engineer friends. 
While this will change slowly over time, it is probably still mostly true. An 
important reason why many DTV transmitters are QRP is that they have been 
assigned a channel adjacent to their analog channel, and don't want to 
canabalize the real money maker. That is the case for WBBM-TV (CBS O&O) -- 
analog is Ch 2, digital is Ch 3. Also for WFLD (Fox) -- analog is 32, digital is 
31, and WSNS (analog 44, digital 45). 

As to programming, the great San Francisco jazz FM station, KCSM, has their FM 
audio as 24/7 background for their "billboard" stream on their DTV channel. 
That's good, because it's higher and QRO as compared to their FM, which has 
gotten cannabalized by low power "religious" broadcasters in their fringe. 

Jim Brown K9YC

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