[time-nuts] A Symmtricom GPSDO Board
I have two similar Symmetricom GPSDO boards but with a slightly different parts layout that were manufactured in about 2012. The OCXO in the first one is 4.1950 Mhz and there is a 10 Mhz VCO next to it. The second one has a Symmetricom SA22-c Rb oscillator. The large blank spot in question is for the version of these that would have the Rubidium oscillator and the copper foil is part of the heat sink for that version. I haven’t checked the output frequency of the SA22-c but it is probably the same as the OCXO version. -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.
Re: [time-nuts] A Symmtricom GPSDO Board
Perhaps a location for an alternate receiver used in another model/version that shared the same PCB albeit populated with different OCXOs etc?. Interesting that 2 ocxos appear to be in use. Bruce On Sunday, 5 June 2016 5:53 PM, Charles Steinmetz wrote: Isn't the GPS receiver the Furuno GT-8031F timing module in the upper right corner? Charles Bruce wrote: > More likely the missing GPS receiver board is installed over the ground plane. > Bruce > > > On Sunday, 5 June 2016 4:11 PM, Hui Zhang wrote: > > > Dear group: > Does anyone familiar with this Symmtricom GPSDO board? I have searched >on internet but I have not found any manual or technical infomation about it. >It seems can use a RS-232 cable and simple SCPI or serial command to control >it, just like HP 58540 or other GPSDO board that I had, and there is a blank >place on PCB that seems can install a big OCXO or SUB-Board? I don't sure, so >I would like to find more detail of this board, it has a reasonable price so I >can get one. Any information will be appreciated. > > > Here is the some pictures. > http://www.dz98.com/tp/an78-3.jpg > http://www.dz98.com/tp/an78-1.jpg ___ 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.
Re: [time-nuts] A Symmtricom GPSDO Board
I thought the same but it looks like there is only 4 holes and quite oversized at that, more like mounting holes, so suspect it is a area for a sub board. -=Bryan=- > Date: Sun, 5 Jun 2016 11:44:05 +0800 > From: ba...@163.com > To: time-nuts@febo.com > Subject: [time-nuts] A Symmtricom GPSDO Board > > Dear group: > Does anyone familiar with this Symmtricom GPSDO board? I have searched on > internet but I have not found any manual or technical infomation about it. It > seems can use a RS-232 cable and simple SCPI or serial command to control it, > just like HP 58540 or other GPSDO board that I had, and there is a blank > place on PCB that seems can install a big OCXO or SUB-Board? I don't sure, so > I would like to find more detail of this board, it has a reasonable price so > I can get one. Any information will be appreciated. > > > Here is the some pictures. > http://www.dz98.com/tp/an78-3.jpg > http://www.dz98.com/tp/an78-1.jpg > > > > > Regards. > > > Hui Zhang /BA6IT > ___ > 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.
Re: [time-nuts] A Symmtricom GPSDO Board
Isn't the GPS receiver the Furuno GT-8031F timing module in the upper right corner? Charles Bruce wrote: More likely the missing GPS receiver board is installed over the ground plane. Bruce On Sunday, 5 June 2016 4:11 PM, Hui Zhang wrote: Dear group: Does anyone familiar with this Symmtricom GPSDO board? I have searched on internet but I have not found any manual or technical infomation about it. It seems can use a RS-232 cable and simple SCPI or serial command to control it, just like HP 58540 or other GPSDO board that I had, and there is a blank place on PCB that seems can install a big OCXO or SUB-Board? I don't sure, so I would like to find more detail of this board, it has a reasonable price so I can get one. Any information will be appreciated. Here is the some pictures. http://www.dz98.com/tp/an78-3.jpg http://www.dz98.com/tp/an78-1.jpg ___ 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.
Re: [time-nuts] A Symmtricom GPSDO Board
bruce.griffi...@xtra.co.nz said: > More likely the missing GPS receiver board is installed over the ground > plane. There is a small metal shield in the upper right with some coax coming out of it. It says FURUNO. They make GPS stuff. Google finds: http://www.furuno.com/en/products/gnss-module/GT-8031 -- These are my opinions. I hate spam. ___ 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.
Re: [time-nuts] A Symmtricom GPSDO Board
More likely the missing GPS receiver board is installed over the ground plane. Bruce On Sunday, 5 June 2016 4:11 PM, Hui Zhang wrote: Dear group: Does anyone familiar with this Symmtricom GPSDO board? I have searched on internet but I have not found any manual or technical infomation about it. It seems can use a RS-232 cable and simple SCPI or serial command to control it, just like HP 58540 or other GPSDO board that I had, and there is a blank place on PCB that seems can install a big OCXO or SUB-Board? I don't sure, so I would like to find more detail of this board, it has a reasonable price so I can get one. Any information will be appreciated. Here is the some pictures. http://www.dz98.com/tp/an78-3.jpg http://www.dz98.com/tp/an78-1.jpg Regards. Hui Zhang /BA6IT ___ 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] A Symmtricom GPSDO Board
Dear group: Does anyone familiar with this Symmtricom GPSDO board? I have searched on internet but I have not found any manual or technical infomation about it. It seems can use a RS-232 cable and simple SCPI or serial command to control it, just like HP 58540 or other GPSDO board that I had, and there is a blank place on PCB that seems can install a big OCXO or SUB-Board? I don't sure, so I would like to find more detail of this board, it has a reasonable price so I can get one. Any information will be appreciated. Here is the some pictures. http://www.dz98.com/tp/an78-3.jpg http://www.dz98.com/tp/an78-1.jpg Regards. Hui Zhang /BA6IT ___ 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.
