[Git][NTPsec/ntpsec][master] 2 commits: Documentation polishing.
Eric S. Raymond
gitlab at mg.gitlab.com
Sat Sep 16 14:53:02 UTC 2017
Eric S. Raymond pushed to branch master at NTPsec / ntpsec
Commits:
ca1fb4b8 by Eric S. Raymond at 2017-09-16T14:18:04Z
Documentation polishing.
- - - - -
6b4e3ccd by Eric S. Raymond at 2017-09-16T14:52:46Z
Documentation polishing.
- - - - -
1 changed file:
- docs/driver_hpgps.txt
Changes:
=====================================
docs/driver_hpgps.txt
=====================================
--- a/docs/driver_hpgps.txt
+++ b/docs/driver_hpgps.txt
@@ -8,11 +8,19 @@ Reference ID: GPS
Driver ID: GPS_HP
Serial Port: /dev/hpgps__u__; 9600bps 8N1, 19200bps 7N2 for the HP Z3801A
+== Warning ==
+
+As of September 2017 we have reports that the internal clock on a
+Z3801A has been recently observed to roll over around to 1998 (see
+link:rollover.html[Rollover issues in time sources]). Users should
+audit for rollover before deplying any of these devices.
+
== Description ==
This driver supports the HP 58503A Time and Frequency Reference Receiver
and HP Z3801A GPS Receiver. It will probably work with other Z38xx models.
-Two-unit pairs of these are sometimes known as a KS-24361.
+Two-unit pairs of these are sometimes known as a KS-24361. All of
+these product are well past end of life.
These receivers are very old designs, dating from around 1990, so
their GPS receiver stages are not very sensitive by modern
View it on GitLab: https://gitlab.com/NTPsec/ntpsec/compare/2d5caf4769499400c5ee17da8fabbe9331c92170...6b4e3ccd7c33aeb45d3caa31bfbf6c8ab09746d2
---
View it on GitLab: https://gitlab.com/NTPsec/ntpsec/compare/2d5caf4769499400c5ee17da8fabbe9331c92170...6b4e3ccd7c33aeb45d3caa31bfbf6c8ab09746d2
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