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Date Posted: 05:35:07 06/29/02 Sat
Author: Potter
Subject: Re: For potter
In reply to: Manuel 's message, "For potter" on 09:42:14 06/28/02 Fri

Not sure what the difference is between those 2 code versions but it sounds like it is in the way it detects the edges or at least the polarity (rising/falling) - carefully compare the lockon, makevbi and makehline routines and you may find a clue and I guess it's a fairly simple modification required.
Giln18 is for mode change packets on line 18 (NTSC) can you see this on a cro?
If you have variable burst attenuation you will need to use the data packet information to 'fix' it.

My system is PAL B/G 50Hz and I had to write my own code to deal with it but 'borrowed' techniques from all the code versions I could study.


>All channels have sync pulse suppressed and not
>inverted, with the code rev7a all channels works very
>good.
>With rev7t1a some channels its very hard to lock.
>
>Which is the difference between rev7a and rev7t1a
>about sensitivity of the edge detectors?.
>
>ANOTHER QUESTION POTTER
>
>In my system the sync pulse and the burts is attenuate
>in two levels. dont have random video inverted, and
>audio is clear. The original descramblers are JERROLD.
>Is this system for the code giln18?

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