In message <[EMAIL PROTECTED]>, Magnus Danielson writes: >From: "Joseph Gray" <[EMAIL PROTECTED]> >Subject: [time-nuts] Agilent appnote >Date: Mon, 25 Jul 2005 01:46:35 -0600 >Message-ID: <[EMAIL PROTECTED]> > >Joseph, > >> Does anyone have a copy of Agilent appnote 174-10 "Measuring the electrical >> length (delay) of cables"? A search of the Agilent site doesn't find it. >> >> Thanks. > >Sadly, I don't have that App-note, however... > >May I propose that you take a sufficiently low frequency (100 kHz may suffice) >squarewave, split it so that you trigger START (directly, put the splitter on >the start BNC) and then the other output of the splitter goes to the cable >which connects to the STOP channel. Measure and preferably integrate over some >100 measurements at least. > >That is at least what I would assume that 174-10 says:
Normally this is done with a network analyzer by measuring the phase difference at two different frequencies and calculating which delay would cause that. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [EMAIL PROTECTED] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
