[time-nuts] Thunderbolt? (re simple gpsdo.)

Richard W. Solomon w1ksz at earthlink.net
Fri Dec 30 15:29:24 EST 2011

I believe those Rockwells have a 10 KHz output. Not a bad price.

73 es HNY, Dick, W1KSZ

-----Original Message-----
>From: bg at lysator.liu.se
>Sent: Dec 30, 2011 12:42 PM
>To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
>Subject: Re: [time-nuts] Thunderbolt? (re simple gpsdo.)
>Hi Chris,
>> I just finished reading about that one.  It requires no longer
>> available GPS reciever.   Maybe I should r-phrase the question:
>Most of us get (re)used stuff... Ebay #300437642776 has some Rockwell era
>receivers. Many time-nuts find HP5065A rubidiums and 5370 counters
>available and interesting, even though they have not been manufactured in
>Then there are many receivers besides the Jupiter receivers that have
>faster-than-1Hz-pulse outputs. Some Oncores have 100PPS. Lots of high end
>L1 OEM-receivers can program the 1PPS output to higher frequencies. A
>prime example of a very modern receiver is the Ublox 6T receiver, that
>have two outputs - one classic 1PPS, and a second programmable frequency
>output. See link below:
>   http://www.u-blox.com/images/downloads/Product_Docs/Timing_AppNote_%28GPS.G6-X-11007%29.pdf
>Good luck with your GPSDO buildproject!
>   Björn
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