I just received an Efratom MFS-209 GPSDO that I purchased onEbay. Everything appears to work. The only manual that I found online is forthe MGPS controller. The MFS family apparently came in many different  flavors allowing the customer to mix andmatch the components that best suited their needs. The version that I have has5 MBF frequency distribution modules that take 5 MHz in and distribute 5 MHzout to the 4 BNC connectors on the module back. These are different than themodules Chuck Harris described in his excellent January 2015 posting which took10 MHz in and distributed 5 MHz out. Does anyone have conversion informationfor converting this MFS-209 from 5 MHz output to 10 MHz output? A source foradditional manuals would also be helpful.  Thanks

Hi Colin, The MBF distribution modules are all simple buffers, and are mounted on the back panel. Being distribution modules, they typically have 4 BNC outputs per module. The MBF module you want to modify is the one that *drives* the MBF distribution modules. It is of the same species as the distribution modules, but has other parts of the PCB populated to allow for divide/2, and certain filters. It is mounted on the *front panel*, has no, or maybe one BNC connector. It is also labeled MBF. EFRATOM took the module reuse business a little too far in my opinion. It would have been better if they would have made a different panel label for the two species of MBF modules. -Chuck Harris Colin Bradley via time-nuts wrote: > I just received an Efratom MFS-209 GPSDO that I purchased onEbay. Everything > appears to work. The only manual that I found online is forthe MGPS controller. > The MFS family apparently came in many different flavors allowing the customer to > mix andmatch the components that best suited their needs. The version that I have > has5 MBF frequency distribution modules that take 5 MHz in and distribute 5 MHzout > to the 4 BNC connectors on the module back. These are different than themodules > Chuck Harris described in his excellent January 2015 posting which took10 MHz in > and distributed 5 MHz out. Does anyone have conversion informationfor converting > this MFS-209 from 5 MHz output to 10 MHz output? A source foradditional manuals > would also be helpful. Thanks _______________________________________________ > 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. >

Chuck wrote: > The MBF distribution modules are all simple buffers, > and are mounted on the back panel. Being distribution > modules, they typically have 4 BNC outputs per module. I posted the Efratom catalog pages for the MFS series to ko4bb.com. The doc describes and gives specifications for each piece of the MFS system. The file name is "Efratom MFS Series datasheet.pdf". You can search for it at: <http://www.ko4bb.com/getsimple/index.php?id=manuals> or use the following direct link: <http://www.ko4bb.com/getsimple/index.php?id=download&file=02_GPS_Timing/Efratom/Efratom_MFS_Series_datasheet.pdf> Best regards, Charles

Thank you Charles! -Chuck Harris Charles Steinmetz wrote: > Chuck wrote: > >> The MBF distribution modules are all simple buffers, >> and are mounted on the back panel. Being distribution >> modules, they typically have 4 BNC outputs per module. > > I posted the Efratom catalog pages for the MFS series to ko4bb.com. The doc > describes and gives specifications for each piece of the MFS system. > > The file name is "Efratom MFS Series datasheet.pdf". You can search for it at: > > <http://www.ko4bb.com/getsimple/index.php?id=manuals> > > or use the following direct link: > > <http://www.ko4bb.com/getsimple/index.php?id=download&file=02_GPS_Timing/Efratom/Efratom_MFS_Series_datasheet.pdf> > > > Best regards, > > Charles > > > _______________________________________________ > 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. >