HI Bob... Thanks for the tip. Have been down that road with this one and it didn't fix it. I think someone may have deliberately disabled the internal timebase to prevent users from having anything but the house standard in play.
Tom Holmes, N8ZM -----Original Message----- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Stewart Sent: Tuesday, May 17, 2016 7:08 PM To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Subject: Re: [time-nuts] FS HP 5335A Hi, I know this is a for sale post, but there's a jumper that needs to be there to work with the regulator oscillator. Page 2-4 of the Operating and Service Manual (05335-90021) details the instructions for installing the Option 010, the 10811 OCXO. Instruction "c" is below. You'd need to add the jumper back in. The factory jumper looks like a resistor. It may simply be cut with side cutters on your unit. You can use just a piece of wire, of course. "c. Remove electrical lead (jumper), PIN 8159-0005, that connects A4U1B(6) and U2B(6)." Bob -------------------------------------------- On Tue, 5/17/16, Tom Holmes <thol...@woh.rr.com> wrote: Subject: [time-nuts] FS HP 5335A To: "'Discussion of precise time and frequency measurement'" <time-nuts@febo.com> Date: Tuesday, May 17, 2016, 4:38 PM For some reason it did not have an internal timebase when I got it, and throws an error, UNLESS you have an external 10 MHz connected before you turn it on. Then it works fine. Please contact off list for details, AND if you happen to be in Dayton, OH, this weekend for a little ham radio swap fest with a mere 25,000 people attending, no shipping required. AND there will be at least a few known time-nuts in town if anyone wants to meet up. Make yourself known to John at the TAPR booth. Tom Holmes, N8ZM _______________________________________________ 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 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.
