Hi Folks, If you had a hydrogen maser outputting 5Mz and 1 PPS and needed to distribute 5MHz, 10MHz and 1PPS throughout a radio observatory, what would be the current brand (or brands) of state of the art equipment to get? Thanks, Jim

Jim Palfreyman wrote: > Hi Folks, > > If you had a hydrogen maser outputting 5Mz and 1 PPS and needed to > distribute 5MHz, 10MHz and 1PPS throughout a radio observatory, what > would be the current brand (or brands) of state of the art equipment > to get? > > Thanks, > > Jim > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > Jim Look at the Spectradynamics offerings for frequency distribution amplifiers, or roll your own its not too difficult to match their performance. http://www.spectradynamics.com/HPDA-15.html Wenzel's distribution amps have a lower phase noise floor but relatively low reverse isolation. Distributing the PPS signal with low jitter is a little more difficult especially if you need sub nanosecond jitter. Bruce

http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/39389/1/05-2893.pdf tells you what JPL is up to at the deep space network, where we do things that are similar to, if not the same as, you'd be doing at a radio observatory. http://trs-new.jpl.nasa.gov/dspace/handle/2014/38025 has more details When last I was hunting for gear, I seem to recall it's all built by some company in Colorado (Timing Solutions?), but now owned by Symmetricom www.symmetricom.com/link.cfm?lid=1719 On 8/12/09 10:20 PM, "Jim Palfreyman" <jim77742@gmail.com> wrote: Hi Folks, If you had a hydrogen maser outputting 5Mz and 1 PPS and needed to distribute 5MHz, 10MHz and 1PPS throughout a radio observatory, what would be the current brand (or brands) of state of the art equipment to get? Thanks, Jim _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.