[opendtv] Re: Due Date for Responses to the ,DTV-to-NTSC Converte r Box RFQ Extended to July 29

>thanks Mark and John.  To the extent I've ever needed to understand this, it
>was in the context of playback via multiformat vcrs  They obviously had to
>do some wiggling to get PAL-M into NTSC.
>
>John Willkie.

The required "wiggling" is easier when converting between NTSC and PAL-M than 
when converting between either of those 525-line standards and a 625-line 
standard like PAL-N. In the former, all you have to do is demod-remod the 
color, while in the latter you also have to change the timebase.

In any case, multi-standard TVs and VCRs (NTSC/PAL-M/PAL-N) are pretty much the 
norm in S. America, and they're not expensive.

-- Frank  


>----- Original Message ----- 
>From: "Mark Schubin" <tvmark@xxxxxxxxxxxxx>
>To: <opendtv@xxxxxxxxxxxxx>
>Sent: Monday, July 25, 2005 10:04 AM
>Subject: [opendtv] Re: Due Date for Responses to the ,DTV-to-NTSC Converter
>Box RFQ Extended to July 29


>> Not exactly.
>>
>> NTSC-M: 3.579545 MHz
>> PAL-M: 3.5761149 MHz
>> PAL-N: 3.58205625 MHz
>>
>>
>> FYI, the NTSC-N that used to be broadcast in Barbados was 3.585937.
>>
>> Also FYI, the 1964 SECAM western-hemisphere proposals were as follows:
>> M - unmodulated red: 3.493007, unmodulated blue: 3.382867
>> N - unmodulated red: 3.5, unmodulated blue: 3.390625
>>
>> TTFN,
>> Mark
>>
>>
>> John Willkie wrote:
>>
>> >I stand corrected.  Does PAL M use the same color subcarrier frequency as
>> >NTSC?
>> >
 
 
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