Symmetricom TimeSource 3600, Руководство пользователя

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108
TimeSource 3600
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
16
(
cont’d
)
Notes:
1. The TimeSource 3600 can find its position on the ear th without latitude,
longitude, and altitude entered, but the process may take several hours, and
may not result in the position accuracy (within 200 m) required for the system
to perform to specification. It is recommended that the information be
obtained and manually entered by the user.
2. Latitude, longitude, and altitude data can be obtained through the use of a GPS
hand-held receiver (user supplied). Location mapping software is also available
for personal computers, which can be used to obtain latitude and longitude.
When the entered figures are within 200 m of the actual coordinates, the
TimeSource 3600 typically delivers UTC traceable timing within 1 h of applying
power. Warm-up times vary greatly depending on the window location and
antenna placement.
3. Obtain latitude, longitude, and altitude outdoors when using a GPS hand-held
receiver, to ensure an accurate reading. Do not use the GPS hand-held
receiver inside the building near the window or wall where the antenna will be
installed. GPS hand-held receivers do not provide an accurate location reading
when used indoors.
17 If UTC time is desired, skip to Step 18. Use the Edit Date command to set the local
date and time.
ED-DAT:::<ctag>::yyyy-mm-dd,hh-mm-ss:MODE=LOCAL;
yyyy= year (yyyy = 1998 to 2096)
mm = month (mm = 01 to 12)
dd = day (dd = 01 to 31)
hh = hours (hh = 00 to 23)
mm = minutes (mm = 00 to 59)
ss = seconds (ss = 00 to 59)
Example command to set local time:
ED-DAT:::123::2000-06-15,14-25-00:MODE=LOCAL;
Procedure G. Power Up (cont’d)
Step Procedure