Precision GPS Reference Clock
Precision GPS Reference Clock
http://www.leobodnar.com/shop/index.php?main_page=product_info&cPath=107&products_id=234
http://leobodnar.com/files/Microsoft%20Word%20-%20Investigation%20of%20Leobodnar%20GPSDO_rev2.pdf
Courtesy OK2KKW
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