Re: [HearSat-L] What time is it, really?

Earl Needham (kd5xb@amsat.org)
Fri, 04 Jun 1999 16:09:37 -0600

At 10:42 AM 6/4/99 -0700, J. Lee Blanton wrote:
>Hello fellow satellite fans:
>
>The question of "What time is it?" is very important for making accurate
>satellite observations but isn't very easy to answer.  I've seen ads for
>so-called "atomic clocks" that are available from Radio Shack and elsewhere
>which are synchronized with low frequency time signals.  Many of these
>don't even have a 'seconds' display or can't be set to UTC.  Does anyone
>know of a really good one suitable for satellite observations?  An accuracy
>of 0.1 second or better would be nice.  I'd appreciate any advice.  Thanks.

	Well -- a GPS works pretty well, if within one second will work.  That's about the delay you can expect when reading the NMEA sentences from the data port.

	Earl


Earl Needham, KD5XB    mailto:KD5XB@AMSAT.ORG
Clovis, New Mexico	DM84jk N34d 25.446 W103d 12.700 (or so)