Trimble Acutime™ Gold GPS smart antenna |
|
Key Features and Benefits / Performance Specifications / Electrical Specs / Environmental Specs /
Physical Characteristics / Serial Protocols / Ordering Details |
|
|
Trimble’s Acutime™ Gold GPS smart antenna marks the integration of the latest generation software GPS technology into a rugged self-contained unit that enables easy integration into any system. The Acutime Gold is a pole-mounted GPS receiver and antenna in a single environmentally sealed enclosure. The Acutime Gold GPS smart antenna design continues Trimble’s line of GPS smart antennas, which have been in production since 1991. This antenna is the perfect solution for precise timing and network synchronization needs, including broadband wireless applications. It provides an extremely cost-effective and independent (within the firewall) timing source for any application, such as fault detection systems and synchronization of wireless networks.
Once power is applied, the Acutime Gold smart antenna automatically tracks satellites and surveys its position to within meters. It then switches to overdetermined time mode and generates a pulse-per-second (PPS) output synchronized to UTC within 15 nanoseconds (one sigma), outputting a time tag for each pulse. The Acutime Gold GPS smart antenna’s T-RAIM (Time-Receiver Autonomous Integrity Monitor) algorithm ensures PPS integrity.
Designed for long-term reliability, the Acutime Gold GPS smart antenna is corrosion-resistant and waterproof, and has a rounded top that facilitates run-off from the elements.
Physical interface
The RS-422 interface is ideal for long cable runs required by buildings or towers. Standard cables are available in lengths up to 135m. Custom lengths up to 600m may be ordered.
Getting Started
The Acutime Gold Starter Kit makes it easy to evaluate the exceptional performance of this GPS smart antenna and integrate state-of-theart technology into your system. The Starter Kit includes the Acutime Gold GPS smart antenna (RS-422), a 33m interface cable, user guide, RS-422 to USB converter, and a Microsoft® Windows® software tool for monitoring and communication. |
|
Key Features and Benefits
|
Performance Specifications
| General: |
L1 frequency, C/A code (SPS), continuous tracking receiver, static, overdetermined clock mode (default)
12 -channel |
| Update rate: |
1 Hz but 5hz for the event update rate |
| Accuracy Horozontal |
6m 50% 9m 90% |
| Accuracy Vertical |
11m 50% 18m 90% |
Time to first fix
(no stored position) |
< 46 seconds (50%) <50 sec (90%) |
Time to First PPS (stationary with stored position, e.g., recovery after power outage):
|
< 14seconds (50%) < 18sec (90%) |
| Re-acquisition after 60-second signal loss: |
<2 seconds (90%) |
| Dynamics: |
Velocity: 0500 m/sec maximum
Acceleration: 4g (39.2 m/sec 2 )
Jerk: 20 m/sec 3 |
PPS output
|
Physical Interface: RS-422
Width: 10 microseconds (default). user-programmable from 10 microseconds to 500 milliseconds.
On-Time Edge: Rising edge on-time (default). User-programmable rising or falling.
Resolution: 80 nanoseconds (quantization error reported through TSIP)
Accuracy (one sigma): UTC ± 15 nanoseconds (static, )
UTC ±90 nanoseconds (dynamic, TDOP²3) |
| External Event Capture |
Interface RS422
Resolution 488 nanoseconds |
| Minimum Pulse Width: |
10 microsecond, rising edge on-time |
| Reporting Mechanism: |
TSIP Packet |
Electrical Specifications
| Prime power: |
+5 Vdc to +36 Vdc, reverse polarity protection |
| Power consumption: |
Power Consumption: 50mA @ 12 volts, 0.6 watts (typical), <1.0 watts max |
Environmental Specifications
| Operating temp: |
-40°C to +85°C |
| Storage temp: |
-55°C to +105°C |
| Vibration: |
0.008 g 2 /Hz 5 Hz to 20 Hz
0.05 g 2 /Hz 20 Hz to 100 Hz
-3dB/octave 100 Hz to 900 Hz |
| Operating humidity: |
95% R.H. non-condensing, @ 60°C |
| EMC: |
CE, FCC Class B |
Physical Characteristics
 |
Dimensions: |
D 95mm x H 72.5mm |
| Weight: |
154 gms |
| Connector: |
12-pin round, waterproof |
| Mounting: |
1" - 14 straight thread or 3/4" pipe thread |
Serial Protocols
| Port |
Interface |
Protocols |
Defaults |
| TxB (primary) |
RS-422 |
TSIP, NMEA |
TSIP @ 9600, 8-odd-1 |
| RxB (primary) |
RS-422 |
TSIP |
TSIP @ 9600, 8-odd-1 |
| TxA (secondary) |
RS-422 |
TSIP |
TSIP @ 9600, 8-odd-1 |
| RxA (secondary) |
RS 422 |
Event |
Event |
All ports support baud rates of 4800-115,200; data bits; even, odd, no parity
Available messages: GGA, GLL, VTG, GSV, GSA, ZDA, RMC
Ordering Details
39091-00
|
Acutime Gold GPS Smart Antenna |
| 40986-00 |
Acutime Gold Starter Kit (includes Acutime Gold GPS Smart Antenna 33m interface cable, RS-422/USB converter, Acutime Monitor software user guide |
| 60148 |
15m Acutime Gold interface cable |
| 60149 |
30m Acutime Gold interface cable |
| 60152 |
60m Acutime Gold interface cable |
| 60153 |
120m Acutime Gold interface cable |
All cables have 12 conductors, 6 twisted pairs and are shielded.
|
