Is this article available online? Or, would someone be willing to scan it?
thanks,
glenn
Bill Hawkins wrote:
Science News for June 24, 2006 (yes, I'm behind on some
reading) has a letters column devoted to their article,
To Leap or Not to Leap in the 22 April issue.
Is this article available online? Or, would someone be willing to scan it?
Science News: To Leap or Not to Leap
http://www.sciencenews.org/articles/20060422/bob8.asp
/tvb
http://www.LeapSecond.com
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Hi All --
Randy Warner asked me to host (at least temporarily) the 2MB manual for
the original Oncore VP. I have it at
http://www.febo.com/time-freq/hardware/VPCommands.pdf
John
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John,
At the momet I m trying to do some similar stuff. I want to compare PPS
output from two different rcvrs, the reference being Leica MC500 and the
subject recvr being M12. but I am having problem with my oscilloscope which is
a Tektronix one with 300 MHZ range. It is not locking on to the
Hi Faisal --
I use a time interval counter to compare 1pps signals -- the DUT goes to
the start input, and the reference (here, GPS) to the stop input. You
measure the time interval between the two, and use the change in
interval to determine noise and offset. For the LORAN experiment, I
used
Hi Group,
I have been using Leica MC500 PPS pulse and want to get the pps output from
that. could any one provide me the socket drawing for the PPS port of Leica
MC500 rcvrs.
Regards
Faisal
-
How low will we go? Check out Yahoo!
To get sure your Tektronix triggers correctly, use the
Manual trigger mode. This way, you won't seee any
trace on the screen without a trigger source (in auto
mode, the scope will show a trace regardless it's
triggered or not). Also, many Tek scopes have a trig
view mode which i find very useful
The other method i use is a homebrew programmable
(thumbwheels) pulse generator (1µs resolution) to
compare my DUT (an Oscilloquartz B540 OCXO) against a
GPS receiver. The pulse generator divides the B540's
5MHz by 5 million to get an arbitrary 1PPS. The arb.
1PPS is then used as the START signal
