EPSILON CLOCK MODEL EC1S
Spectracom Corporation
EPSILON CLOCK User’s Manual
5-8
Name
Identifier
Bytes
Byte
No.
Encode
Type
Settings
Description
Query
Command
5 to 20
8
integers
Odd bytes (5 to 19)
For each byte, the number of the satellite being tracked is set on bits b0 to b6. The
locking to satellite indicator is given by bit b7 (b7=0 ; locked).
Even bytes (6 to 20)
SNR (0 to 255) of the followed satellites.
The even byte Oi gives the SNR of the satellite indicated by the byte Oi-1
e.g.: O3 = 140 (80 HEX + 12 decimal) O4 = 120
Satellite 12 is locked and its SNR is 120.
21 to 22
1 integer
---
Reserved
23 to 26
1 long
-324,000,000 ... 324,000,000
(-90° S ... +90° N)
Latitude of the GPS antenna (ms) in WGS 84 Datum Ellipsoid.
27 to 30
1 long
-648,000,000 ... 648,000,000
(-180° W .. +180° E)
Longitude of the GPS antenna (ms) in WGS 84 Datum Ellipsoid.
31 to 34
1 long
-100,000 ... 1,800,000
(-1,000 m to 18,000 m)
Altitude of the GPS antenna (cm) in WGS 84 Datum Ellipsoid.
35
1 char
1
0
GPS receiver failure
GPS receiver operational.
36
1 char
---
Reserved
TOD output
setup
65
1
1
0
1 char
1
0
Clock diagnostic output.
TOD message output.
Time
message
period of
emission
66
2
4
0 to 3
1 long
0 ... 100,000
(0 ... 100,000 sec)
Period of the emission of the time message on the TOD interface and on the remote
control interface.
Reset of the
clock
---
16
0
---
---
Stops and restarts the clock (warm-reboot).
GPS date int
68
4
7
0
1 char
1 ... 31 (Days)
Sets the GPS receiver date and time.
1
1 char
1 to 12 (Months)
2 to 3
1 integer
1992 ... 2016 (Years)
4
1 char
0 ...23 (hours)
5
1 char
0 ... 59 (minutes)
6
1 char
0 ... 59 (seconds)