Hi It also could be a club / group and these could be club design projects. If they are done from some sort of kit, the level of parts and workmanship may vary a bit. You do *not* want to buy the first Heathkit I ever built ….
Since the surplus GPSDO’s we buy for a hundred dollars or so mostly (but not always) come from China, I doubt that a group over there designed one that costs them the same sort of money. My guess is that, at least as a kit, the target cost was in the 25 cents on the dollar range ($50 or so). That’s not a bad thing at all, money matters. It may have limited what they could do compared to what’s in one of the surplus cell site GPSDO’s. Bob > On Nov 19, 2014, at 1:24 AM, Don Latham <d...@montana.com> wrote: > > > big 7 table > > Don > Bob Camp >> Hi >> >> The guy’s email *might* be: bg7...@126.com >> >> That also could be something else entirely. >> >> Bob >> >> On Nov 18, 2014, at 7:34 PM, Bob Camp <kb...@n1k.org> wrote: >>> >>> >>> Hi >>> >>> … and indeed it is one. There are a whole range of this and that pieces of >>> test gear designed by the guy. >>> >>> Bob >>> >>>> On Nov 18, 2014, at 7:28 PM, Alan Hochhalter <alanh...@gmail.com> wrote: >>>> >>>> BG7TBL sounds like an amateur radio callsign. >>>> >>>> Alan >>>> >>>> On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb...@n1k.org> wrote: >>>> >>>>> Hi >>>>> >>>>> I’d say this has the look of a hobby / semi-pro project. I’ve seen several >>>>> of them done in other areas. Somebody comes up with a pile of parts at the >>>>> local market and does a board that at least sort of makes them work. Often >>>>> they are based on some sort of open source effort. Without more >>>>> information, this is very much a “who knows” sort of thing. >>>>> >>>>> Bob >>>>> >>>>>> On Nov 18, 2014, at 7:19 PM, Arthur Dent <golgarfrinc...@gmail.com> >>>>> wrote: >>>>>> >>>>>> You can see a similar product by this seller direct - >>>>>> >>>>>> http://www.cart100.com/seller/bg7tbl/ >>>>>> http://www.cart100.com/Product/38848104218/ >>>>>> >>>>>> Looks like a similar product at almost 3 time the Ebay price. >>>>>> There are more photos at the second link under 'specifications' >>>>>> and you can read MV89A on the Morion oscillator and see some >>>>>> wires patching an error on the bottom of the PC board. Note that >>>>>> the seller also has a frequency doubler at about $10. >>>>>> >>>>>> -Arthur >>>>>> _______________________________________________ >>>>>> 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. >>> >> >> _______________________________________________ >> 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. >> >> > > > -- > "The power of accurate observation is commonly called cynicism by those who > have not got it." > -George Bernard Shaw > > Dr. Don Latham AJ7LL > Six Mile Systems LLC > 17850 Six Mile Road > Huson, MT, 59846 > mail: POBox 404 > Frenchtown MT 59834-0404 > VOX 406-626-4304 > Skype: buffler2 > www.lightningforensics.com > www.sixmilesystems.com > > > _______________________________________________ > 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.
