Re: [time-nuts] Austron 1250B
corby d dawson wrote: > Hi, > > I am playing with an Austron 1250B and I'd like to add a fine frequency > adjust. > > The data sheet I have on the 1150 oscillator inside indicates that the > EFC input is an option. > > Anyone have a schematic for the 1250B that shows how the 1150 is wired > in. > > If no EFC on this unit I'll be getting rid of it. > > Thanks, > > Corby Dawson My 1250A manual shows the EFC being brought out to the rear panel, The front panel EFC is "over powered" by the voltage put on the rear panel connection. My manual has two interconnection diagrams for the wiring. They both show the BNC connector on the rear. The external EFC is spec.d at + or - 5 Volts Good luck on the B model Bill K7NOM ___ 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] Austron 1250B
Hi Corby and Nigel. I think I have a data sheet for the 1150 oscillator somewhere as well. I have an "orphan" 1MHz unit. The "a" definitely has the EFC on the rear and I recollect seeing a spec for the swing per volt. I seen to think it is quite fine and would be useful for GPS steering. Alan G3NYK - Original Message - From: "corby d dawson" <[EMAIL PROTECTED]> To: Sent: Saturday, August 30, 2008 10:50 PM Subject: Re: [time-nuts] Austron 1250B > > Hi, > > I am playing with an Austron 1250B and I'd like to add a fine frequency > adjust. > > The data sheet I have on the 1150 oscillator inside indicates that the > EFC input is an option. > > Anyone have a schematic for the 1250B that shows how the 1150 is wired > in. > > If no EFC on this unit I'll be getting rid of it. > > Thanks, > > Corby Dawson > > Click to make millions by owning your own franchise. > http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3m6iSRbslUuv6eYSqQX4VKjWuK 9N7IRHgjWc9Dfez5DWUmBr/ > > ___ > 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] Austron 1250B
Hi Corby, my 1250a has an EFC connection on the rear panel (a bnc connector) I have some circuitry but not sure at present what "suffix" letter it refers to My 1250as have a 5MHz OCXO. Alan G3NYK - Original Message - From: "corby d dawson" <[EMAIL PROTECTED]> To: Sent: Saturday, August 30, 2008 10:50 PM Subject: Re: [time-nuts] Austron 1250B > > Hi, > > I am playing with an Austron 1250B and I'd like to add a fine frequency > adjust. > > The data sheet I have on the 1150 oscillator inside indicates that the > EFC input is an option. > > Anyone have a schematic for the 1250B that shows how the 1150 is wired > in. > > If no EFC on this unit I'll be getting rid of it. > > Thanks, > > Corby Dawson > > Click to make millions by owning your own franchise. > http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3m6iSRbslUuv6eYSqQX4VKjWuK 9N7IRHgjWc9Dfez5DWUmBr/ > > ___ > 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] Austron 1250B
In a message dated 30/08/2008 22:53:17 GMT Daylight Time, [EMAIL PROTECTED] writes: I am playing with an Austron 1250B and I'd like to add a fine frequency adjust. The data sheet I have on the 1150 oscillator inside indicates that the EFC input is an option. Anyone have a schematic for the 1250B that shows how the 1150 is wired in. If no EFC on this unit I'll be getting rid of it. Hi Corby I haven't got any specific information on the 1250B but did upload the manual for the 1250 to Didier's site some time ago and it's in his GPS manuals section. As far as I know both the 1250 and 1250A came with front panel fine tuning, which uses the EFC input on the oscillator, as standard. It's shown fitted in the 1250 manual and fitted to both my 1250As. I have seen photos of the 1250B without the fine frequency pot but would suspect the 1150 would be the same in all models. The 1250 manual shows little information for the 1150 itself but the overall wiring diagram shows the fine control pot being wired to pin 8 on the 1150, as well as some other connections between the 1150 and the PSU. regards Nigel GM8PZR ___ 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] Austron 1250B
Hi, I am playing with an Austron 1250B and I'd like to add a fine frequency adjust. The data sheet I have on the 1150 oscillator inside indicates that the EFC input is an option. Anyone have a schematic for the 1250B that shows how the 1150 is wired in. If no EFC on this unit I'll be getting rid of it. Thanks, Corby Dawson Click to make millions by owning your own franchise. http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3m6iSRbslUuv6eYSqQX4VKjWuK9N7IRHgjWc9Dfez5DWUmBr/ ___ 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.
