[time-nuts] Vectron Labs 100MHz OCXO datasheet?

2017-08-09 Thread Neil Smith G4DBN
Does anyone have any technical info on a Vectron Laboratories 100MHz OCXO, model 724Y3067 (part number A61583-1) please? Can’t find a datasheet on the current Vectron Inc website and my Google-fu is weak today. Neil ___ time-nuts mailing list --

[time-nuts] Anyone using UBLOX LEA-M8F for GPSDO?

2017-05-10 Thread Neil Smith G4DBN
I’ve just ordered an LEA-M8F board from CSG to save time and trouble making a PCB. I am intending to use it to discipline one of my 100MHz OCXOs, using a /5 divider. Has anyone on the list used this chip to discipline an external OCXO? Any experiences to share and suggestions to get best

Re: [time-nuts] 10MHz to 25MHz

2017-01-18 Thread Neil Smith G4DBN
That is exactly what I have just done, using an HMC1031 to lock a good 100MHz OCXO to my GPSDO, using a very narrow filter bandwidth with decent 22uF ceramic caps in the loop filter. I’ve also made a second version using an XOR gate and an MC12080 prescaler and flipflops and fast comparators,