Hi The BNC on the back is indeed a nice clean 10 MHz sine wave. The odd stuff comes out of the SMB jacks. The antenna is SMB as well, but at least some of the sellers include N to SMB adapter cables. The big D connector on the back has a bunch of LVDS 1/2 pps and LVDS CDMA chip x 4 outputs. There is also an RS-485 line and an LVDS loopback line. The beast runs with LH and responds to most of the normal stuff. It does not save the results of an auto-tune, but that's not as bad as a TBolt. The numbers they have as defaults are a lot closer to what they should be. They have a switcher in them, so no need for strange supplies. They have a switcher in them, so you get interesting spurs (just like the TBolt without a switcher …). Phase noise floor on the OCXO isn't quite as good as a TBolt, or the buffer amp really isn't doing it's job.
Bob On Mar 28, 2013, at 5:01 PM, paul swed <[email protected]> wrote: > Yes they do seem inexpensive at $139. I looked at some pix on e### and its > not clear what port the 10 Mhz comes out of. There is a BNC on the back > thats labeled BIT. Built in test. > But that doesn't make much sense. > Regards > Paul > WB8TSL > > On Thu, Mar 28, 2013 at 4:48 PM, Bob Camp <[email protected]> wrote: > >> Hi >> >> Thunderbolts may make a comeback one of these days. Who knows what's >> sitting waiting to be scrapped out. >> >> At the risk of running up the price - the Trimble EBSCTM's are as good as >> a TBolt, and at the moment cheaper. They do lack a pps output, but 10 MHz >> seems to be the more popular output on the TBolt. For NTP use, they have a >> bunch of 1/2 pps (pulse every other second) outputs. >> >> Bob >> >> On Mar 28, 2013, at 4:11 PM, Chris Albertson <[email protected]> >> wrote: >> >>> Some times a project will "take off" when the number of users reaches >>> a critical mass. There are many Open Source projects where the >>> initial creator is long gone but the project lives on. How to get a >>> project to that stage? First off you need numbers of users put allso >>> you need some kind of communications forum like this one where the >>> uesrs can help each other. In other words you need to build a >>> community around the project. >>> >>> With the Thunderbolts getting more expensive we might see interrest >>> agin on home brew GPSDOs. A comunity could ddevelope about these. >>> That would be the goal of every Open Source author, to get out of the >>> job of support and pass that job on to the community. >>> >>> On Thu, Mar 28, 2013 at 11:16 AM, NeonJohn <[email protected]> wrote: >>>> >>>> >>>> On 03/25/2013 09:36 AM, Jim Lux wrote: >>>> >>>>> One reason is that if one DOES release source, one will wind up >>>>> supporting it, because generally, we all nice people and helpful, and >>>>> it's hard to tell someone no when they send an email asking how to get >>>>> it to compile on Version N+3 when you used version N, etc. This can be >>>>> a real distraction from whatever else you are doing. >>>> >>>> Boy, you can say that again. And open source hardware is even worse. A >>>> couple of years ago I put up an open source induction heater on my site. >>>> Everything included - schematics, board layouts, CAD files, theory of >>>> operation, how to wind the transformer - in short, everything I could >>>> think of. There's even a kit available from Fluxeon.com. >>>> >>>> Yet I probably spend an hour a day responding to emails about that >>>> project. Approximately 100% of the questions are either answered on my >>>> site or by a little googling. It's getting to be enough of a burden >>>> that I'm considering taking the page down. >>>> >>>> I'm a dedicated supporter of Open Source but this experience has >>>> tempered my enthusiasm a bit. >>>> >>>>> And then there's the folks who argue with you about your implementation >>>>> or coding style. >>>> >>>> Or electrical design style. I think that the people who want to argue >>>> design, especially "what if I did this?" type arguments are more >>>> tiresome than the software know-it-alls. >>>> >>>> People need to really think and do their Google homework before hitting >>>> the email button on a project site. >>>> >>>> John >>>> >>>> >>>> -- >>>> John DeArmond >>>> Tellico Plains, Occupied TN >>>> http://www.fluxeon.com <-- THE source for induction heaters >>>> http://www.neon-john.com <-- email from here >>>> http://www.johndearmond.com <-- Best damned Blog on the net >>>> PGP key: wwwkeys.pgp.net: BCB68D77 >>>> _______________________________________________ >>>> time-nuts mailing list -- [email protected] >>>> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>>> and follow the instructions there. >>> >>> >>> >>> -- >>> >>> Chris Albertson >>> Redondo Beach, California >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] >>> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >>> and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
