The GNSS RTK E90 is equipped with wifi and NFC connectivity for flexible connection of other peripherals. All new CHCNav brand GNSS RTK models are equipped with multi-channel connectivity in addition to Bluetooth as the regular E90 models are equipped with NFC and wifi connectivity. makes it possible to connect additional peripheral devices such as handheld rangefinders, reverb depth meters without having to plug in wires like before. The multi-connection feature allows the CHC E90 GNSS receiver to be connected to the rangefinder to measure the intersection in the corners of the house without having to place the unit directly on the measuring point.

	Content	Parameter
Receiver characteristics	satellite tracking	6GPS+BDS+Glonass+Galileo+QZSS, support the third generation of Beidou, support five-star sixteen frequency
	number of channels	624 channels
	operating system	LINUX operating system
	Initialization time①	<5s (typ.)
	Initialize reliability	>99.99%
Receiver appearance	button	1 dynamic/static switch key, 1 power key
	indicator light	1 differential signal light, 1 satellite light, 1 static data acquisition light, 1 power light
Nominal accuracy②	static precision	Plane Accuracy: ±(2.5+ 0.5×10 -6 ×D) mm
		Elevation accuracy: ±(5+0.5×1 0 -6 ×D) mm
	RTK accuracy	Plane Accuracy: ±(8 + 1×1 0 -6 ×D) mm
		Elevation accuracy: ±(15+ 1×1 0 -6 ×D) mm
	Stand-alone accuracy	1.5m
	Code differential accuracy③	Plane accuracy: ±(0.25 + 1×1 0 -6 ×D) m
		Elevation accuracy: ±(0.5+ 1×1 0 -6 ×D) m
Electrification parameters	Battery	Built-in 6800mAh lithium battery, support 15 hours battery life of mobile station
	External power supply	Support external power supply via USB port
Physical properties	size	160mm*96mm
	weight	0.73kg
	Operating temperature	-45℃~+75℃
	storage temperature	-55℃~+85℃
	Waterproof and dustproof	IP68 class
	shock shock	IK08 class
	Anti-drop	Resist 2 meters free fall
Data output	output format	NMEA 0183, binary code
	output method	BT/Wi-Fi/Radio
Static storage	storage format	Can directly record HCN, HRC, RINEX
	storage	Standard 8GB built-in storage
	Download method	Universal USB data download; HTTP download
Data communication	I/O interface	1 external UHF antenna port
		1 USB-TypeC interface, support charging, power supply, data download
	network module	Handbook supports 4G full Netcom
	radio	Built-in high frequency 450-470MHz single receiver radio
	protocol	CTI protocol, transparent transmission, TT450
	Bluetooth	BT4.0, backward compatible with BT2.x, compatible with Windows, Android, IOS systems
	Wi-Fi	802.11 b/g/n
	NFC	Support NFC flash connection
Receiver function	multithreaded storage	The receiver can record 4 threads of static data at the same time
Handbook parameters	model	HCE320
	The internet	4G full Netcom (Mobile Unicom Telecom 2G/3G/4G)
	operating system	Android 7.1
	CPU	Octa-core ultra-fast processor
	RAM+ROM	2GB+16GB
	LCD screen	5.5-inch AMOLED self-luminous display
	physical buttons	full function button
	Input	CTI independent input method
	Camera	800W
	Battery	8000mAh
	Three defenses	IP68
	electric stylus	support