John, Trigger levels are set to "Preset" for most steps. In step 18, I verified that Preset is 0V and the Level voltage varied from aproximately -1.3 to +0.6 volts. The manual specifies "approximately -1.3 to +0.5 volts."
In step 15, the standard deviation was bouncing around between about 36-57pS. The manual says that less than 100pS is good. Time for bed. Joe Gray KA5ZEC On Sat, Oct 10, 2009 at 2:32 AM, John Miles <[email protected]> wrote: > >> Bruce, >> >> Thanks for the tip. I was very careful. Only one board was really >> stuck. I left it alone for now. >> >> Just for the heck of it, I did a few more steps in the Chapter 4 >> Operation Verification. As I said, discounting the bad BNC, step 13 >> reads aproximately 103.6nS, so I continued. >> >> Steps 14, 15 and 16 are ok. >> >> Step 17 shows 3.6nS (should be < 1nS). Period Compliment shows >> -96.3nS. Something very wrong here. > > What are your trigger levels? A small departure from 0.00 volts could > account for this. > > Also, what's the standard deviation when measuring its own OCXO? > > -- john, KE5FX > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
