[TechAssist] Re: HDTV outdoor antenna reception

I agree, we already see that now.  Plus all the confusion over LCD vs. 
Plasma vs. DLP.  It's not going to get any easier.




Phil Bader wrote:

>It does.
>But do you see the potential nightmare for all my senior customers that 
>still have an issue with "... OK the box  puts out on chan. 3, but I 
>want to record with my VCR a chan. 13 movie, but I don't set the VCR to 
>13? Why?.. I want 13...I get a blue screen...And how do I get sound 
>again with the surround amp on VCR but not cable?"
> Oh, God. I'll need a full time instructor to man the phone.
>;-)
>Phil Bader
>
>Don's TV wrote:
>
>  
>
>>No that is not correct.  Each broadcaster still has the analog channel 
>>(13 in your example), but has also been assigned a digital channel 
>>(usually a UHF channel).  Of course the time when the analog licenses 
>>expire is still being debated.  In our area we do have a channel 13.  
>>Their digital signal is being transmitted on channel 38.  This was a 
>>problem for the 1st and 2nd generation HDTV tuners, as they would find 
>>the signal, but the consumer would have to know what the analog channel 
>>that matched up with.  Presently, all the HDTV equipment I know of 
>>converts the digital (ch. 38) to display as 13-1.  The dash and 
>>following number are the indicator you are watching a digital signal.
>>Multicasting is a entirely different thing.  We have two very good 
>>examples in our area.  Analog channel 2 in Baltimore is broadcasting 
>>digital on UHF channel 52.  Therefore their digital signal appears as 
>>2-1, because of the tuner conversion.  In addition, they retransmit ABC 
>>News Now (an ABC National Feed) on  2-2.  This particular TV station 
>>also owns their own doppler radar , so they transmit that as a live feed 
>>on 2-3.  Therefore, they are multi casting 3 different things in the 
>>digital bandwidth they have been allotted.  The PBS station in Baltimore 
>>is analog ch. 67.  Digital is broacast on UHF  ch. 29.  They multi cast 
>>4 different feeds during the daytime (67-2, 67-3, 67-4 and 67-5).  
>>However at night they multi cast only 2  digital channels (67-5 and 
>>67-6).  This is so, they have the bandwidth available to broadcast on 
>>full  HDTV (1080i) signal, along with their regular signal converted to 
>>digital.
>>Hope they helps you understand it  a little better.
>>
>>
>>
>>Phil Bader wrote:
>>
>> 
>>
>>    
>>
>>>As I understand HDTV broadcast, if I am viewing VHF channel 13, say, in 
>>>normal mode I am watching channel 13 on a VHF carrier. But if channel 13 
>>>is simul-broadcasting in HDTV, If I wish to see the channel 13 program 
>>>in HD, and select the set to do so, the set automatically goes to a 
>>>predetermined UHF frequency that chan. 13 uses to transmit HD. Is this 
>>>correct? (as opposed to an additional VHF carrier piggybacking over the 
>>>normal VHF info)
>>>Correct?
>>>Using channel 13 as my example, I thought if I had a good antenna 
>>>capable of recieving a strong ch. 13 VHF signal, then I would also 
>>>automatically get a good ch. 13 HDTV signal as well.
>>>Phil Bader
>>>
>>>Don's TV wrote:
>>>
>>>
>>>
>>>   
>>>
>>>      
>>>
>>>>We've had good  success with UHF multi-bay antennas.  Of course, all the 
>>>>broadcasters in our area (Baltimore/Washington) are on the UHF band.  
>>>>The signal is definitely much more directional, so a motor is almost a 
>>>>necessity.  It must be nice to receive signals from 100 miles away.  
>>>>With the terrain we have in our area  (rolling hills and many trees), 
>>>>we're fortunate to receive from much more than 60 miles.  Trees have 
>>>>been no trouble for us, not the problem they are for DIRECTV, but we 
>>>>have very few pine trees.  The other surprising thing is how much 
>>>>tweaking and adjust our broadcasters do.  We've had  some digital 
>>>>signals on the air for over 3 years now.  One day the signal will be 
>>>>great, but the next day no signal at all.  Many broadcasters in our area 
>>>>are testing or have gone to multicasting.  I believe this is probably 
>>>>why there has been the issues with the signals being on/off.
>>>>
>>>>
>>>>
>>>>
>>>>  
>>>>
>>>>     
>>>>
>>>>        
>>>>
>>>   
>>>
>>>      
>>>
>> 
>>
>>    
>>
>
>  
>

-- 
Michael Goodwin
Don's  TV
18 W. Main St.
Westminster, MD  21157
(410) 848-6622
FAX  (410) 848-6622
donstv@xxxxxxxxxxxx



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