Appendix A
Technical Specifications and
Operating Parameters
A.1
Scope
Information in this section includes specifications relating to the physical and operational charac-
teristics of the standard Model 1088B Satellite Controlled Clock. Topics included in this section
are Receiver Characteristics, I/O Configuration, System Interface(s), Antenna System, Operator
Interface(s), and Physical Specifications.
NOTE: Specifications are subject to change without notice.
A.2
Receiver Characteristics
A.2.1
Input Signal
•
GPS L1 C/A code, 1575.42 MHz.
A.2.2
Timing Accuracy
•
GPS/UTC time
±
50 ns rms (at 1-PPS output), when receiving 4 or more satellites (one
satellite if position is known within 25 meters) in the presence of Selective Availability (SA).
•
<
40 ns, typical in Position–Hold mode
A.2.3
Internal Oscillator, Stability
•
Standard: DCXO, 1
×
10
−
6
, typical
A.2.4
Position Accuracy (rms)
•
10 meters, rms, 90% confidence
•
25 meters, SA (USA Department of Defense Selective Availability) OFF,
•
100 meters, SA ON.
•
Elevation, 140 meters, SA on
Содержание 1088A
Страница 4: ...iv ...
Страница 6: ...vi ...
Страница 18: ...xviii LIST OF FIGURES ...
Страница 23: ...1 4 Attaching Rack Mount Ears to 1088A B Series Clocks 3 Figure 1 2 Attaching Rack Mount Ears ...
Страница 24: ...4 Unpacking the Clock ...
Страница 32: ...12 Front and Rear Panels ...
Страница 38: ...18 Connecting Inlet Power Input and Output Signals ...
Страница 41: ...4 1 GPS Antenna Installation 21 Figure 4 2 Antenna Mounting Bracket Figure 4 3 Antenna Mounting with AS0044600 ...
Страница 46: ...26 GPS Antenna and Cable Information ...
Страница 48: ...28 Setting Internal Jumpers Figure 5 1 Model 1088B Main Board ...
Страница 76: ...56 The Setup Menus ...
Страница 112: ...92 Serial Communication and Command Set ...
Страница 127: ...B 4 Physical Dimensions 107 Figure B 1 Suggested Mounting of the AS0094500 Surge Arrester ...
Страница 128: ...108 Using Surge Arresters ...
Страница 137: ...C 5 Option 04 Parallel BCD Output 117 C 5 2 Option 04 Firmware Setup Figure C 2 Option 04 Firmware Setup ...
Страница 145: ...C 5 Option 04 Parallel BCD Output 125 Figure C 4 Option 04 Output Jumper Settings ...
Страница 146: ...126 Options List Figure C 5 Option 04 Board Layout and Jumper Locations ...
Страница 165: ...C 12 Option 17 Parallel BCD Output and Second RS 232 Port 145 Figure C 11 Option 17 Output Jumper Settings ...
Страница 166: ...146 Options List Figure C 12 Option 17 Board Layout and Jumper Locations ...
Страница 176: ...156 Options List C 14 5 Typical Network Configuration Figure C 15 Option 18 Network Configuration ...
Страница 187: ...C 16 Option 20A Four Fiber Optic Outputs 167 Figure C 22 Option 20A Jumper Locations ...
Страница 194: ...174 Options List Figure C 24 Option 23 Internal Jumper Setup ...
Страница 196: ...176 Options List Figure C 25 Option 27 Jumper Locations ...
Страница 214: ...194 Options List Figure C 28 Option 29 Connector Signal Locations ...
Страница 270: ...250 Options List ...