Hi The problem with “build it yourself” is that there is no way do know if you got it right unless you have something to compare your design to. You *will* make mistakes as you build one of these….
Bob > On Dec 13, 2014, at 3:04 PM, Lizeth Norman <normanliz...@gmail.com> wrote: > > I second the "build it yourself" comment. GPS receivers and steerable > oscillators are cheep on the bay. Steep learning curve, however, the > ideas carry over to many, many other things. > > There are certainly more stable/accurate ways to do it. Spending money > is not always the best idea at first, at least if you're interested in > why. Later, when I understood more about the nuts and bolts, valuing a > particular buy is easier. > > Do have fun. This stuff is a gas. Beware, if you're a pack rat, it's > an acquisitive hobby. > > Norm n3ykf > > On Sat, Dec 13, 2014 at 5:30 AM, Neil Schroeder <gign...@gmail.com> wrote: >> In a relative newcomer to this intense of a crowd :-). But j also found >> that I'm not quite instrumented (yet) to tackle the accuracy problem. As >> such Im focusing where i can on what I know (power, systems, the like) >> while I accumulate the other gear. >> >> As such I can say the thunderbolt and now the lte lite have been rock >> solid. >> >> On Friday, December 12, 2014, Anthony Roby <ar...@antamy.com> wrote: >> >>> I'm in the same beginners' category as you. I'd do more but have other >>> projects on the go and have found I would need more equipment (GPIB >>> interfaces, a spectrum analyzer etc) to get much further. That said, I >>> like the Lucent KS24361 and have a few bits and pieces on order to tap into >>> J8 on the board of REF-1 and double the 5MHz for use in the lab. I picked >>> up a decent antenna on eBay, it's probably not in an ideal spot but that >>> was a tradeoff between aesthetics on the house / access to pull a coax down >>> to the basement / height of my ladder, and it seems to work fine. Power >>> supply was also auction-sourced for less than $20 and runs nicely. I think >>> eventually I'll make a panel and install the unit in my basement rack. >>> >>> I have no need for the time-nuts accuracy, but I have to say I've found >>> this whole area fascinating and have learned a ton over the past couple of >>> months toying around with this stuff and absorbing the expertise from the >>> group here. >>> >>> Anthony >>> >>> -----Original Message----- >>> From: time-nuts [mailto:time-nuts-boun...@febo.com <javascript:;>] On >>> Behalf Of Hal Murray >>> Sent: Friday, December 12, 2014 6:49 PM >>> To: Discussion of precise time and frequency measurement >>> Cc: hmur...@megapathdsl.net <javascript:;> >>> Subject: Re: [time-nuts] Which First GPSDO to buy? >>> >>> >>> >>> kc0...@gmail.com <javascript:;> said: >>>> For a newcomer to this field, which GPSDO would be better to purchase >>>> as a first-time acquisition: ... >>> >>> I'd suggest the Lucent KS24361. Lots of people here have them so it will >>> be easy to get advice. >>> >>> >>> Aside from the GPSDO, you also need a power supply and antenna, and coax to >>> get to the antenna. It will work a lot better if the antenna is in a good >>> location. GPS is 1.5 GHz, so you have to pay attention to loss in the >>> coax. >>> >>> >>> -- >>> These are my opinions. I hate spam. >>> >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com <javascript:;> >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> _______________________________________________ >>> time-nuts mailing list -- time-nuts@febo.com <javascript:;> >>> To unsubscribe, go to >>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >>> >> _______________________________________________ >> 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. > _______________________________________________ > 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. _______________________________________________ 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.
