High Precision Positioning Board

ER-306 & ER-307 Features:
1.Uses GPS, GLONASS and BeiDou,Galileo and QZSS ready;
2.372 Channels, long-range RTK baselines;
3.Compatible with ROX, RTCM, CMR, CMR+ RTK Sources,fewer cold starts with Head Start;

Product Details

High Precision Positioning Board


Position with RTK accuracy using multiple satellite systems, ER-306 and ER-307 OEM modules use GPS, GLONASS and BeiDou and Galileo and QZSS are ready. Track more signals for unparalleled positioning performance even in challenging environments.

Leverage the compact size and easy integration in your design. The 34 pin ER-306 module is a drop-in upgrade for many products. ER-307 is a drop-in upgrade for existing designs using standard 20 pin modules from other manufacturers.

Scalable Eclipse RTK Solutions,with the Eclipse ER-306 and ER-307, RTK performance is scalable. Utilize the same centimeter-level accuracy in either single frequency mode, or employ the full performance and fast RTK over long distances with multi-frequency multi-constellation GNSS signals.

Experience Multi-Frequency Multi-GNSS RTK


Uses GPS, GLONASS and BeiDou; Galileo and QZSS ready

372 Channels

Long-range RTK baselines

Compatible with ROX, RTCM, CMR, CMR+ RTK Sources

Fewer cold starts with Head Start


Environmental Mechanical Communications

GPS Sensor Specifications

Receiver Type:

GNSS multi-frecuency RTK with carrier phase

Signals Received:




GPS Sensitivity:

-142 dBm

SBAS Tracking:

3-channel, parallel tracking

Update Rate:

1 Hz standard, 10 or 20 Hz optional


Horizontal (RMS) Vertical (RMS)


2 10 mm + 1 ppm 20 mm + 2 ppm


3 0.3 m 0.6 m

Autonomous, no SA:

3 1.2 m 2.5 m

Timing (1PPS) Accuracy:

20 ns

Cold Start:

4 < 60 s typical (all unknown)

Warm Start:

< 30 s typical (no ephemeris)

Hot Start:

< 10 s typical (all known)


5 Removeable, auto-recharging onboard clock battery

Maximum Speed:

1,850 kph (999 kts)

Maximum Altitude:

18,288 m (60,000 ft)

Operating Temperature:

-40°C to +85°C (-40°F to +185°F)

Storage Temperature:

-40°C to +85°C (-40°F to +185°F)


95% non-condensing (when installed in an enclosure)

Shock: Mechanical Shock:

EP455 Section 5.14.1 Operational 

(when mounted in an enclosure with screw mounting holes utilized)


EP455 Section 5.15.1 Random


P306: 71 L x 41 W x 13 H (mm)

P307: 72 L x 41 W x 13 H (mm)


< 23 g (< 0.81 oz.)

Status Indication (LED):

Power, GPS lock, Differential lock DGPS position

Power/Data Connector

P306: 34-pin male header, 0.05” (1.27 mm) pitch

P307: 20-pin male header, 0.08”(2 mm) pitch

Antenna Connectors:

MCX, female, straight

Serial Ports:

4 full-duplex 3.3 V CMOS (3 main serial ports,

1 differential-only port),

1 USB Host 6,

1 USB Device

Baud Rates:

4800 - 115200

Correction I/O Protocol:

Hemisphere GNSS proprietary, ROXFormat, RTCM v2.3, RTCM v3.2, CMR,CMR+

Data I/O Protocol:

NMEA 0183, Crescent binary 7

Timing Output:

1PPS, CMOS, active high, rising edge sync, 10 kΩ, 10 pF load

Event Marker Input:

CMOS, active low, falling edge sync,10 kΩ, 10 pF load


Input Voltage:

3.3 VDC +/- 5%

Power Consumption:

< 2.55 W nominal dual frequency GPS+ GLONASS + BeiDou

Current Consumption:

770 mA nominal dual frequency GPS+ GLONASS + BeiDou

Antenna Voltage:

15 VDC maximum Antenna Short Circuit



Antenna Gain Input Range:

10 to 40 dB

If interested,pls contact usinfo@ericcointernational.com

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