Time Transfer GPS Receiver
Take advantage of GPS solution by incorporating VP-200T GPS Receiver/Antenna into your existing marine navigational equipments
MODEL: VP-200T
Overview
VP-200T is the integration of a timing GPS receiver and antenna in a compact/weather proof enclosure for time transfer application. It outputs UTC synchronized 1PPS with +/- 100 nanoseconds tolerance, which is close to an atomic clock in accuracy.
As a time transfer device, VP-200T is capable of operating with even 3(three) satellites after having a fix position with 3 or more satellites previously, so you can get precise time base anywhere on the Earth even under a very harsh environment where only one satellite is available.
As a time transfer device, VP-200T is capable of operating with even 3(three) satellites after having a fix position with 3 or more satellites previously, so you can get precise time base anywhere on the Earth even under a very harsh environment where only one satellite is available.
1 PPS OUTPUT:
- Output signal level: TTL@3.3V(4.8v optional)
- Output data format: NMEA 0183
- Accuracy: +/- 1 m second (2DRMS) to UTC
- Accuracy: +/- 100 nano second(2DRMS) to UTC via software adjustment
Features
- UTC synchronized precise time base can be obtain anywhere on the earth at a relatively low cost
- Ultra compact, fully weather-proof, easy to mount
- Quick start, 18 seconds warm start typical
- Continue to output time data with even one satellite tracked
- Wide supply voltages range (8~40VDC), low power consumption (0.9W typical
Applications:
- Time Stamp Data Logger
- Synchronization of radio base stations for cellular phone, pagers, and so on.
- Time control of computer terminals connected to network
Specification
| Electrical | PERFORMANCE | |||
| Dimension: | 4.5" diameter x 2.9" (H) or 11.4cm x 7.4cm(H) | Antenna: | High-reliability ceramic patch | |
| Weight: | 0.8lb(360g) without cable | Antenna LNA gain: | 26+/-2dB, NF: 2.0dB max | |
| Enclosure: | Highly impact, corrosion-proof PC (polycarbonate) resin | Receiving Frequency: | 1575.42MHz, C/A code | |
| Construction: | Hermetically sealed & fully waterproof | Receiver Architecture: | 12 channel ail-in-view algorithm tracks & uses up to 12 satellites | |
| Mounting: | Pole mount to 1"-14 threaded pipe | DGPS Capability: | Direct RTCM-SC104 interface | |
| ENVIRONMENTAL | Acquisition Time: | 20 sec. typical (warm start) | ||
| Temperature: | Operating -30~+75°C, storage -40~+85°C | Position Accuracy: | 15m or 50 feet RMS* | |
| Humidity: | 95% non-condensing | Velocity Accuracy: | 0.1 knots RMS steady-state | |
| POWER | Update Rate: | 1 sec. continuos | ||
| Input Power: | DC 8~40V, with reverse protection | Dynamics: | Up to 49m/s.s (tracking sustained) | |
| Voltage Regulator: | on-board, switching mode | 1 PPS Timing Output: | Generates one pulse per second with rising edge synchronized to UTC after having a position fix | |
| Consumption: | 1.1Watt, typical | 1 PPS Timing Accuracy: | 1 Łg sec. typical/ 100ns after calibration | |
| EMI Filter: | rejects power line interference | * Subject to degradation of position to 100m 2DRMS under US DoD Selective Availability program | ||
| COMMUNICATION | INTERFACE | |||
| Protocol: | NMEA 0183, 4800 baud rate | Output protocol: | NMEA 0183/ RS-232 or RS-422 | |
| Signal Level: | RS232 or RS422 (optional) | Standard Output Sentences: | GLL: Position & UTC time GGA: Position & UTC time RMC: Position, time, speed, course ZDA: Time & Date |
|
| 1 PPS | TTL | Custom Outputs: | Refer to OEM options | |
| DATA CABLE | San Jose Technology, Inc. may add other NMEA sentences to the standard output to maximize interfacing capabilities. | |||
| Length: | 15m (standard RS232) 100m (optional RS422) |
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| Description: | Multi-color conductors strained in a shielded/ weatherproof jacket | I/O PIN ASSIGNMENT | ||
| I/O CONNECTOR | Connector | Wire | Function | |
| Housing: | 7 pin circular, hermetically sealed | PIN1 | White | Receive |
| Pins: | Gold plated for anti-corrosion | PIN2 | Green | Transmit |
| OEM OPTIONS | PIN3 | Yellow | Ground | |
| Output Interval: | 0~60 sec. selectable | PIN4 | Bare Braid | Earth |
| Operating Mode: | 2D, or 2D/3D automatic | PIN5 | Blue | 1 PPS |
| Type of Interface: | RS 232 or RS 422 (optional) | PIN6 | Black | Power - |
| Datum: | One of the 171 datum supported | PIN7 | Red | Power + |
| Extended Input Voltage: | Up to DC 60V | |||
| Sentence Available: | GGA, ZDA, RMC, GLL, GSA, GSV, VTG | |||
| Satellite Mask: | SNR, PDOP, elevation angle , satellite number | |||
| 1 PPS OUTPUT (Rising edge traceable to UTC) | |
| Output Pin: | Pin#5 (Blue) |
| Max Output Current: | +/- 5.3 mA |
| Voltage High: | 2.4V min @ -0.8mA |
| Voltage Low: | 0.5V max @ 5.3mA |
| Start to Output: | Only when position fix is obtained |
| Synchronization: | Rising edge is synchronized to UTC. |
| Accuracy: | Within +/- 1 micro second typically |
| Duty Cycle: | 50% |
| Adjustment: | 100ns increment (advance or delay) |
| Adjustment Command: | $PFEC, Gpset, Txnnnn CR LF x= - to advance 1pps pulse / x= + to delay 1pps pulse nnnn= 0000~9999 |
| Example: | $PFEC, Gpset, T-0006 =>1pps pulse will be advanced by 600 nanoseconds $PFEC, Gpset, T+0050 =>1pps pulse will be delayed by 5 microseconds |
This specification is subject to change without prior notice...
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Application Diagram
(23678) 11F.,No.2,Sec.4, Jhongyang Rd. ,Tucheng City,Taipei County 236,Taiwan (R.O.C.)
Tel: +886-2-22694456 Fax: +886-2-2269-4451
E-mail: sanav@sanav.com
Design by Taiwan Products, B2BChinaSources, B2BManufactures
Tel: +886-2-22694456 Fax: +886-2-2269-4451
E-mail: sanav@sanav.com
Design by Taiwan Products, B2BChinaSources, B2BManufactures