Spectracom Corporation
EPSILON CLOCK MODEL EC1S
EPSILON CLOCK User’s Manual
5-9
Name
Identifier
Bytes
Byte
No.
Encode
Type
Settings
Description
Query
Command
GPS
positioning
74
10
19
0
1 char
1
2
3
Antenna positioning mode: Automatic
Antenna positioning mode: Manual
Antenna positioning mode: Mobile
1 to 4
1 long
-324,000,000 ... 324,000,000
(-90° S ... +90° N)
Latitude (ms) in WGS 84 Datum Ellipsoid.
5 to 8
1 long
-648,000,000 ... 648,000,000
(-180° W .. +180° E)
Longitude (ms) in WGS 84 Datum Ellipsoid.
9 to 12
1 long
-100,000 ... 1,800,000
(-1,000 m to 18,000 m)
Altitude (cm) in WGS 84 Datum Ellipsoid.
13 to 17
5 char
---
Reserved
18
1 char
1
0
UTC time scale reference.
GPS time scale reference.
Local time
71
7
2
0
1 char
-23 ... +23 (hours)
Difference, in hours and minutes, between local time and the clock reference time.
1
1 char
-59 ... +59 (minutes)
Phase
correction
72
8
4
0 to 3
1 long
0 ... 1,000 ns
Programmed difference between the distributed 1PPS signal and the built-in reference
(to correct antenna cable delay).
Leap second
73
9
6
0
1 char
1
0
No leap second.
Use leap second.
1
1 char
1
2
Leap second addition.
Leap second subtraction.
2 to 3
1 integer
1 ... 366 Days
Day of the year to be used.
4 to 5
1 integer
1992 ... 2127
Year to be used
Display
77
13
2
0
1 char
0
Day / Month / Year format
1
Month / Day / Year format
2
Day of year / Year format
3
MJD format
4
MJD format integer part hh/mn/sec
1
1 char
---
Reserved
Alarm limits
78
14
10
0 to 3
1 long
0 ... 1,000
µ
s
Phase alarm limit
0 = no phase alarm.
4 to 7
1 long
0 ... 1,000 10-9
Frequency alarm limit
0 = alarm immediate if synchronization is lost.
8 to 9
1 integer
---
Reserved