[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

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

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 Symm

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

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:

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

[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