At 5:05 PM +0000 12/23/08, time-nuts-requ...@febo.com wrote: >Date: Tue, 23 Dec 2008 11:40:51 -0500 >From: John Ackermann N8UR <j...@febo.com> >Subject: [time-nuts] New topics (was Re: He is a Time-Nut > Troublemaker....) >To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > >Magnus Danielson wrote: > >> My intent is to get some stuff done in the lab during the vacation. >> (Desperatly trying to get some more on-topic discussions going). > >Here are two questions that have been running around my head: > >[snip] >2. Several measurement techniques require a given phase relationship >(e.g., quadrature) between DUT and reference. For HF frequencies (ie, 5 >or 10 MHz) is there a *practical* phase shifter design covering 180+ >degrees that doesn't involve switching various lengths of coax in and >out of the line?
Why the aversion to coax delay lines? They are simple and reliable. The reason will help people to tell what alternatives would be best. Joe _______________________________________________ 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.
