GPS-Based Frequency Standard

This modern and highly accurate frequency standard is something you can readily have, thanks to the efforts of Brooks Shera W5OJM. Using the once per second timing pulse available from the GPS system to control a VCXO, you can expect to achieve an accuracy of a few parts in 10¹¹, about 10,000 times better than the time honored WWV zero beat method. See JLY 1998 QST for full details. (QSTArticle.pdf). Circuit board available.

Order #217 - PCB

$19.95 each

Shipping via first class mail to US 48 is $2.50 for 1 - 3 boards $5.50 for 4 - 10 boards

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