PSN-L Email List Message
Subject: from Angel in Panama
From: "a.rodriguez" stuff@.................
Date: Sat, 3 May 2003 06:31:56 -0500
I have a general question about GPS timing.
I have several systems that have GPS timing systems and have always
assumed that they were "right on", but now I have my doubts.
I have one system on that is using a Motorola Oncore with and
interface from Larry. I then use TAC32 to read the GPS time and set the
Based on some conversations with Mauro and some of the work on the
array I decided to check the GPS clocks.
I set TAC32 to read the GPS but not set the PC time, ever. Then I set
Tardis to get the time via NTP and set the PC time every second. Then
I set TAC32 to show the difference between GPS time and the PC time.
I get a consistent difference of .825 seconds. I have calculated the
cable losses from the antenna and they don't seem to be able to
account for all of that.
Anyone have any ideas??
On a difference note, just last night I was able to locate two
events using nothing but the small array!! I will try to update the web
page this weekend.
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