Bdale Garbee wrote: >Looking at options for locking all the clocks that are part of the EME >station I'm building to my HP 58503A GPS-synced clock. Searching the >list archives, I found this note from Matt regarding the external clock >input on the USRP: > >http://lists.gnu.org/archive/html/discuss-gnuradio/2005-03/msg00030.html > >Has anyone played with this? > >Of particular interest is whether anyone has hacked the FPGA code to use >the internal PLLs to retain a 64 Mhz sample clock using a 10 Mhz >reference clock input to the board. > >
Hi Bdale -- Interesting idea about the FPGA hack. If that doesn't work, TAPR is just now releasing a product called the Reflock II that allows you to lock just about any oscillator to a standard frequency, or to a 1pps signal. I'm going to use one to generate 64MHz locked to my house standard -- haven't yet figured out just what the best choice of VCXO will be, though. We'll be showing the Reflock II off at the DCC (Santa Ana, CA -- September 23-25) and we'll have 'em for sale shortly thereafter. John _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
