[opendtv] Re: Sony U.S execs: Expect a robust holiday season

Richard Hollandsworth wrote:

>For the UBBER-TVER who can't get by with simple indoor antennas, wouldn't 
>Cable or SAT make more sense????
>  
>

Cable and satellite cost money. There is not excuse for any citizen to 
be denied the use of there OTA DTV spectrum and free TV when there is a 
modulation that would have no trouble delivering it.

A better modulation is what would make "more sense".

Bob Miller

>  
>/////////////////////////////////////////
>"Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx> wrote:
>  Richard Hollandsworth wrote:
>  
>
>>Just the environment for a Smart Antenna....if the high
>>level signals don't overload the front end...
>>
>>Mark Schubin wrote:
>>
>>    
>>
>>>Since the beginning of DTT-reception testing in my
>>>apartment, WCBS-DT and WNYW-DT have been co-located on
>>>the Empire State Building. Yet directional receiving
>>>antennas have had to be pointed in different directions
>>>(or even placved in different locations) for reception
>>>of those two. The best results with the latest receivers
>>>have been with relatively non-directional loops.
>>>      
>>>
>
>My guess in Mark's apartment is that the elevation of each
>station's transmitting antenna on the ESB's tower might have
>an effect. Because the differences in elevation might create
>different propagation paths, as the signals bounce around to
>reach the indoor antenna, when the receiver is so close to
>the very elevated transmitting antennas.
>
>In any event, 5th gen receivers seem to have solved the
>aiming problem, if the antennas are non-directional enough
>to make use of the energy from multiple propagation paths.
>I believe this is true whether window placement is required
>or for the special best case of the LG 5th gen prototype.
>
>As to the smart antenna idea, it is a great way to get the
>ultimate fix, but it has consequences that don't seem to be
>discussed. Let's not forget that the antenna(s) and downlead
>are going to be shared among many receivers, each one tuned
>to a different channel. I can easily see 6 such receivers
>in an average household, between radios, TVs, and recording
>devices.
>
>Al Limberg and Doug champion the mast-mounted remote tuner
>design. For multiple receivers, you would need as many of
>these tuners to be installed on the mast. I agree that this
>is the technically preferred solution, but at the same time,
>I tend to get new TV toys at Christmas. Not a good time to
>plan this sort of tuner installation.
>
>But there are other options. Instead of installing one
>remote tuner for each receiver, you install one remote tuner
>for each STATION available OTA. For apartment complexes,
>this is probably feasible. It in essence creates a mini-CATV
>system. You dedicate one tuner to each local station then
>remodulate the output for distribution, and no need for any
>signal upstream from receivers. The only problem here is
>that potentially many tuners are required. For example, I
>would require 19 of these tuners.
>
>Another option is to locate the tuners indoors, but still
>remote from the receivers. This requires multiple downleads
>from each antenna, each downlead dedicated to one tuner.
>It's possible you'd also require a wide band antenna amp
>to distribute the antenna signal from each antenna to each
>tunable front end. this option has the advantage that you
>don't need to crawl up to the mast in cold, windy weather.
>If, that is, you provision enough spare downleads ahead of
>time.
>
>Another option is to locate the tunable front end inside
>each receiver. I still think that for purely PRACTICAL
>reasons, this sort of solution is the best. Perhaps the
>LG 5th gen prototype combined a tunable front end with
>a dual-conversion receiver??
>
>Bert
>

 
 
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