Time Transfer GPS Receiver
MODEL: MR-700T
GPS receiver and antenna in a fully weather proof enclosure for time transfer application
The AQTIME MR-700T 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 +/- 1 microseconds tolerance, which is close to an atomic clock in accuracy.
As a time transfer device, the AQTIME MR-700T 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.
Specifications:
Specifications |
Parameter |
Description |
General |
|
L1 frequency, C/A code(SPS),
12 Independent tracking channel |
Sensitivity |
|
-143 dBm (tracking) |
Accuracy |
Position |
15m CEP , 5m (waas) |
Velocity |
0.1 m /sec. 0.05 m/s(waas) |
Time |
+/- 1 µ s RMS (static mode) |
Acquisition
|
Cold start |
45 sec. (typical) |
Warm start |
38 sec. (typical) |
Hot start |
8 sec. (typical) |
Reacquisition |
|
100 ms typical (signal reacquisition) |
Dynamics |
Altitude |
18000m max. |
Velocity |
500 m /sec. |
Vibration |
4G max. |
Operation Temperature |
|
-40° C to +85° C |
Storage Temperature |
|
-45° C to +90° C |
Operating Humidity |
|
0% to 95% RH, non condensing |
Water Resistance |
|
100% waterproof |
Primary Power |
|
9V ~ 34V DC |
Power Consumption |
|
130mA |
Protocol |
|
NMEA-0183 v3.0 baud rate 4800/9600/19200/38400/115200, default 4800 |
Signal level |
|
RS-232(standard),USB & RS-422 optional |
NMEA Message |
|
GGA, GLL, GSA, GSV, RMC, and VTG |
DGPS Capability |
|
Direct RTCM-SC104 interface |
EMI filter |
|
Rejects power line interference |
Power cable |
|
UL 2464 , 15M |
Enclosure |
|
High impact, corrosion-proof polycarbonate resin |
Connector |
|
open |
Dimensions |
GPS Locator |
90.5mm (Dia.) X 108.5 mm (H) |
Mounting Base |
|
Weight |
|
200 grams |
Standard Mounting |
|
Concinnity and Solid design |
* This specification is subject to change without prior notice
User selectable datum *Pole mount to 1"-14 UNS threaded mast
MR700T 1PPS Specification
1.The signal is generated after the MR-600T power on and continues until power down.
2.The rising edge of the signal is synchronized to the start of each GPS second.
3.The signal is valid after the initial position fix has been calculated.
4.The accuracy of the one-pulse-per-second output is maintained only while the MR600T can compute a valid position fix.
5.The default pulse width is 1u second.
6.The pulse height is 3V.
7.The accuracy is +/- 1usec with respect to the GPS second.
•Power Interface RS232:
I/O PIN & CABLE |
Connector |
Wire |
Function |
PIN1 |
White |
Receive |
PIN2 |
Green |
Transmit |
PIN3 |
Yellow |
Ground |
PIN4 |
Bare Braid |
Earth |
PIN5 |
Blue |
1 PPS |
PIN6 |
Black |
Power- |
PIN7 |
Red |
Power+ |
Connector |
Wire |
Function |
PIN1 |
White (R+) |
Differential input + |
PIN2 |
Green (T+) |
Differential output + |
PIN3 |
Yellow (T-) |
Differential output - |
PIN4 |
To be detemined(R-) |
Differential input - |
PIN5 |
Blue |
1PPS |
PIN6 |
Black ( - ) |
Power- |
PIN7 |
Red (+) |
Power+ |
|
