There is an interesting article on designing a QRSS grabber. An mbed
board is attached to one of Tony's (KB9YIG) SoftRock boards. He uses
the 1 pulse per second signal from a GPS board to stabilize the
SoftRock's receive frequency. Looks like a kluge now but the author
promises a cleaner design with more firmware and software in the
future. Look at the latest issue of Circuit Cellar for the details:
February 2012 #259 page 14. The issue is dedicated to wireless comms
and so far I have read three articles authored by radio amateurs.
73,
Kevin. KD5ONS
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