"Pete KE9OA" wrote in message [snip]
this into production, so the next step is to design a sync detector, using
an Analog Devices AD607. The folks at AD were nice enough to send me a
workable application circuit, but unfortunately, this is going to require a
four layer board, so I am not going to be able to etch the boards at home
with this one. Not a bad thing in itself, but I am going to have a board
house do the prototype boards.

[snip]

Pete, here's an article on using the AD607 as a sync demod:
http://home.att.net/~wa1sov/technical/sync_det.html

73, Tom