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Gm-2 series, Specifications – Transystem GM-2 User Manual

Page 8

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GM-2 Series

V0.5

8

7.

Specifications

Specification

Description

General

L1 frequency, C/A code (SPS)
66 independent tracking channels

Sensitivity

-165dBm /Tracking

Update Rate

Up to 5Hz

Accuracy

<3m CEP, without aid
DGPS (WAAS, EGNOS, MSAS, RTCM): 2.5m

Acquisition
(open sky)

Cold Start: 35sec
Warm Start: 34sec
Hot Start: 1.5sec

Reacquisition

< 1sec

Dynamics

Altitude: 18000m (max.)
Velocity: 515m/sec (max.)
Vibration: 4G (max.)

Supply Voltage

DC 5V ± 5%

Power Consumption

40mA max. @ 5.0V / Tracking

Backup Battery

Build-in


NMEA Message

NMEA0183 v3.1 baud rate 4800/9600/…/57600,
Default: 9600 (GM-2 RU, GM-2 RP, GM-2 RT),

115200 (GM-2 LU, GM-2 LP, GM-2 LT)

Selectable Output: GGA, GLL, GSA, GSV, RMC, and VTG
Default Output: GGA

、GSA、GSV、RMC

Datum

Default WGS-84

Antenna

Build-in

patch

antenna,

right

hand

circular

polarization,

50ohm

Log capability

Up to 125,000 way points, logger model only
Default: Date/Time

、Latitude、Longitude、Height、Speed

Smart log capability Yes, logger model only
Mac support

Yes

Signal Level

USB, RS-232 or Low Voltage TTL

Connector

USB type A male or PS2 female

Operating
Temperature

-30

℃ to 85℃

Waterproof

IPX7