“Send Camera Power and Video on the Same Coax
Cable” (pages 64 and 65; http://cds.linear.com/docs/en/
application-note/an87f.pdf) gives a description and
schematic of a circuit which may possibly be used as a
guide to build a circuit to the specifications I provide
above. I would like to keep the circuit as simple as
possible with as few components as necessary to provide
an image with good resolution.
I have enjoyed reading Nuts & Volts for many years;
keep up the good work.
— Jeff Hollinshead
AVideo cable with included power wire is available. Why not go that route? Check out www.amazon.com/VideoSecu-Security- Camera-Surveillance-Installation/dp/
Your specs indicate that the monitor is remote and
power is supplied at the camera end; that is the opposite
of the usual configuration. Why not make the camera
remote and use the application note schematic? NV
January 2014 23
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