Re: [time-nuts] 1pps signal measurement

2020-06-29 Thread Gerhard Hoffmann
Am 29.06.20 um 20:48 schrieb Gerhard Hoffmann: eternity, with CMOS being so slow that interoperability with CMOS was not an advantage. ooohps, sorry:    substitute / interoperability with CMOS / interoperability with TTL / ___ time-nuts mailing

Re: [time-nuts] 1pps signal measurement

2020-06-29 Thread Gerhard Hoffmann
Am 29.06.20 um 19:35 schrieb Mark Spencer: I am also wondering a bit about the possible impact of my 5370B's having a maximum trigger setting of approx 2.18 volts vis a vis the typical specs for 5 volt TTL signals that typically define a logic 1 as having a slightly higher voltage ? Would

[time-nuts] 1pps signal measurement

2020-06-29 Thread Mark Spencer
Hi: After a long break I am spending a bit of time looking at my time nuts gear. I have started looking at the properties of the various 1 pps signals I have access to. Other than routing the signals via Coaxial cable into instruments with a high impedance input (the documentation for some