Re: My 819 line French TV project
In my previous post I was trying to relate Jac's 819 line bandwidth to a 405 line benchmark. The lower half of the image shows a crop of the TRF test card displayed on a 405 line receiver that has 3MHz bandwidth. (The 3MHz grating on Test Card C equates to something like 425 lines on the RTF test card.)
Jac's 819 receiver has better resolution than the 405 line receiver and the active part of the 405 line is 80.8uS whereas the active part of the 819 line is 41uS so Jac's receiver has bandwidth greater than twice the 3MHz of the 405 line receiver. ~7MHz.
Peter
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