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

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 <golgarfrincham@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.

BG7TBL sounds like an amateur radio callsign. Alan On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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. >

The cheaper unit has no patch wires. Interesting. Seems that he put a lot of work in the unit. Too bad the information on the software is non-existent. Cheap enough though. -G On 11/18/2014 07:24 PM, Bob Camp 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 <golgarfrincham@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.

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 <alanh137@gmail.com> wrote: > > BG7TBL sounds like an amateur radio callsign. > > Alan > > On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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.

Hi The guy’s email *might* be: bg7tbl@126.com That also could be something else entirely. Bob On Nov 18, 2014, at 7:34 PM, Bob Camp <kb8tq@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 <alanh137@gmail.com> wrote: >> >> BG7TBL sounds like an amateur radio callsign. >> >> Alan >> >> On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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. >

big 7 table Don Bob Camp > Hi > > The guy’s email *might* be: bg7tbl@126.com > > That also could be something else entirely. > > Bob > > On Nov 18, 2014, at 7:34 PM, Bob Camp <kb8tq@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 <alanh137@gmail.com> wrote: >>> >>> BG7TBL sounds like an amateur radio callsign. >>> >>> Alan >>> >>> On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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

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 <djl@montana.com> wrote: > > > big 7 table > > Don > Bob Camp >> Hi >> >> The guy’s email *might* be: bg7tbl@126.com >> >> That also could be something else entirely. >> >> Bob >> >> On Nov 18, 2014, at 7:34 PM, Bob Camp <kb8tq@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 <alanh137@gmail.com> wrote: >>>> >>>> BG7TBL sounds like an amateur radio callsign. >>>> >>>> Alan >>>> >>>> On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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.

Hi After some more digging, the date convention used by the club or what ever it is: year - month - day. I sort of doubted that was the case, but indeed it is. The GPSDO has a design date of November 6th 2014. They are pretty much just out of beta test (if that) at this point. Bob > On Nov 19, 2014, at 1:24 AM, Don Latham <djl@montana.com> wrote: > > > big 7 table > > Don > Bob Camp >> Hi >> >> The guy’s email *might* be: bg7tbl@126.com >> >> That also could be something else entirely. >> >> Bob >> >> On Nov 18, 2014, at 7:34 PM, Bob Camp <kb8tq@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 <alanh137@gmail.com> wrote: >>>> >>>> BG7TBL sounds like an amateur radio callsign. >>>> >>>> Alan >>>> >>>> On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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.

Hi After some more digging, I was more than a bit high on my kit cost estimate. The MV89’s are $5-$6 on the market in China. The PCBs as a set are under $3. Best guess is that the kit (if that’s what it is) sells for under $25 un-assembled. Bob > On Nov 19, 2014, at 7:37 AM, Bob Camp <kb8tq@n1k.org> wrote: > > 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 <djl@montana.com> wrote: >> >> >> big 7 table >> >> Don >> Bob Camp >>> Hi >>> >>> The guy’s email *might* be: bg7tbl@126.com >>> >>> That also could be something else entirely. >>> >>> Bob >>> >>> On Nov 18, 2014, at 7:34 PM, Bob Camp <kb8tq@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 <alanh137@gmail.com> wrote: >>>>> >>>>> BG7TBL sounds like an amateur radio callsign. >>>>> >>>>> Alan >>>>> >>>>> On Tue, Nov 18, 2014 at 5:24 PM, Bob Camp <kb8tq@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 <golgarfrincham@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. >