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Compact GPS 624 Channels RTK GNSS Receiver For Land Survey

Basic Information
Place of Origin: China
Brand Name: CHC
Certification: CE
Model Number: E91
Minimum Order Quantity: 1 set
Price: Negotiable
Packaging Details: Carton
Delivery Time: 3 working day
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1000 set per month
Detail Information
Type: GPS Receiver Use: Automotive
Brand Name: CHC Model Number: Huayi E91
Size: Compact Size Battery: Durable
SIM Card: NANO SIM Cellular: Global 4G
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624 Channel RTK GNSS Receiver




624 Channel rtk gps receiver

Product Description

CHC Brand Huayi E91 GPS 624 Channels GNSS Receiver for Land Survey GPS

RTK GNSS receiver information:


Leveraging the latest GNSS technologies, the E91 is a smart receiver of the next generation. The proven and outstanding performance and reliability make it the preferred choice of surveyors and construction professionals.
The E91 benefits froma compact ergonomicand rugged design with integrated sensors(4G network modem,UHF Radio,Wi-Fi,Bluetooth and ebubble).


RTK GNSS receiver Specification:


model CHC E91
Gnss Channel 624
Satellite Tracked GPS L1CA/L1P/L1C/L2P/L2C/L5
Galileo E1, E5a, E5b, ALTBOC, E6
QZSS L1, L2 L5,
BeiDou B1I, B2I, B3I, B1C, B2a, B2b, ACEBOC


Update rate 5 Hz, up to 50 Hz
Performance Specifications
Signal Reacquisition < 1 sec
Hot Start < 10 sec
Initialization Reliability > 99.9%
Memory 8 GB
Real-Time Accuracy (rms)
Static Accuracy

Horizontal:3mm + 1ppm

Vertical:5 mm + 1 ppm

RTK Accuracy

Horizontal:8 mm + 1 ppm

Vertical:15 mm + 1 ppm

Code Differential Horizontal:0.4 m
SBAS Accuracy Horizontal:0.8 m
7-pin Connect to external power and radio
USB For charging and data transmission
Cellular Global 4G
Bluetooth V4.1
WIFI 802.11 ac/n/b/g/n

Update firmware, manage settings and

status, download data

Date formats

CNR input and out put

RTCM 2.x, RTCM 3.x input and output
NMEA 0183 output
HCN, HRC and RINEX 2.11, RINEX 3.02
NTRIP Client, NTRIP Caster

Electronic Bubble Support
Dimensions 160*158*96mm , 1.55KG
Shock Survive a 2 m pole drop on concrete floor 1.2 m free drop
5-pin lemo port connecting external power supply and external radio
Cellular Global 4G
Bluetooth V2.1+EDR / V4.1 Dual Mode, Class 2
WIFI 802.11 ac/n/b/g/n

Update firmware, manage settings and

status, download data

Electronic Bubble Support
Dustproof&Waterproof IP67 (Customizable IP68)
Humidity 95% non-condense
Power Supply
Battery Rechargeable, built-in Lithium-ion battery,7.2 V - 10200 mAh
Voltage 9~28 V DC external power input
Working Time Up to 16 hours
Charge Time Typically 4 hours
Internal Radio
Frequency Range 410 - 470 MHz
Protocol CHC, Transparent, TT450
Emitting Power 0.5 W / 2 W
Operating Range 5 km typically



Compact GPS 624 Channels RTK GNSS Receiver For Land Survey 0


Q:How to turn off voice broadcast of receiver?
A:a. Enter the WEBUI, find the voice switch in the settings page and turn it off.
b. Controller Software→Device→Device Setting, turn off the “enable voice”, and click “OK”.
Q:Can the base station and rover station be interchangeable?
A:The difference between the rover station and the base station is that the accessories are different, the function and hardware configuration are the same. You can use the controller to choose the working mode of the device and set it as the base station or rover station.
Q:What is CORS?
A:CORS is called a continuous operating reference station system. It can be understood as a bas e station that is erected at a fixed known point and works continuously for 24 hours, and sends its own data to a specific serverthrough the network. The use of CORS operation eliminates the need for a base station, and CORS is equivalent to a base station in a normalnetwork operation.

Contact Details
Cindy Tang

Phone Number : 0086 18301928717

WhatsApp : +8618301928717