丨 Product IntroductionAK979DC is a 4G RTK positioning terminal that achieves centimeter-level precision via 4G-transmitted differential data. It supports Ntrip protocol and works with Qianxun Position, CORS and self-built base stations. Featuring industry-leading 4G hardware, a built-in high-precision antenna, 10400mAh battery, RS232 and BT output, it fits smart agriculture, engineering surveying, UAV navigation and more outdoor positioning scenarios.
Product Features:
1. Support full constellation multi frequency chip level RTK positioning.
2. Supports BDS, GPS, GLONASS, Galileo, QZSS, and SBAS.
3. The terminal supports Ntrip communication protocol and supports network base station services such as Chihiro location, CORS stations, and self built stations.
4. Can be used as a mobile station.
5. Adopt industrial grade 4G network communication module.
6. Built in high-performance backup battery, supporting continuous and stable operation of the device without external power supply
丨 Specification parameters
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Signal tracking
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Operating
Frequency
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BDS：B1I, B2I, B3I，BIC,B2a，B2b
GPS：L1C/A, L1C,L2P, L2C, L5
GLONASS：L1,L2
Galileo：E1, E5b, E5a,E5,E6C
QZSS：L1C/A, L2C, L5
SBAS：L1C/A
IRNSS:L5
|
|
Positioning
specifications
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Single point
positioning
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Level: 2.5m
Vertical: 5m
|
|
Differential DGPS
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Level: ＜ 0.8mRMS
Vertical: ＜ 0.4mRMS
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RTK
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Level: 0.8cm+1ppmRMS
Vertical: 1.5cm+1ppmRMS
|
|
Performance
Specifications
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RTK initialization time
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＜10s
|
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cold start
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50s
|
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warm start
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15s
|
|
recapture
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＜1.5s
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|
Initialization time
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＜5s（Typical）
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|
Initialize reliability
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＞99.99％
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|
time accuracy
|
20nsRMS
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|
speed accuracy
|
0.03m/s RMS
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|
Data format
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Differential data
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RTCM3.X, RTCM2.X
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output format
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NMEA-0183, RTCM3.X
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Data update rate
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1Hz, 2Hz, 5Hz, 10Hz, 20Hz
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4G module
(Network frequency band)
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LTE FDD
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B1/3/5/8
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LTE TDD
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B34/38/39/40/41 (full frequency band)
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GSM/GPRS/EDGE
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NA
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4G module
(Transmission rate)
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LTE FDD (Mbps)
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10.3(DL)/5.1(UL)
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|
LTE TDD (Mbps)
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9.1(DL)/3.1(UL)
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|
Bluetooth module
|
Bluetooth version
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2.0
|
|
operating frequency band
|
2.4G
|
|
air rate
|
2Mbps
|
|
Reference distance
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10m
|
|
Battery characteristics
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Battery charging current
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2.1A
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|
Battery discharge current
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2.4A (maximum)
|
|
operating current
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≤ 700mA (battery output terminal)
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|
Built-in battery
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3.7V/10400mAh 18650 battery pack (with protective board)
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|
Charging time
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5~6h
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|
Continuous working hours
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15h
|
|
physical parameters
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size
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138mm*23mm*90mm
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|
weight
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780g
|
|
housing material
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ABS+PC+UV
|
|
Environment
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Operating Temperature
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-30℃～＋70℃
|
|
Storage temperature
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-40℃～＋85℃
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Interface Description
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No.
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Interface Name
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Feature Introduction
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|
1
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NC
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/
|
|
2
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NC
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/
|
|
3
|
NC
|
/
|
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4
|
NC
|
/
|
|
5
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RS232-TXD
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RTK positioning output RS232-TXD
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|
6
|
RS232-RXD
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RTK positioning output RS232-RXD
|
|
7
|
NC
|
empty
|
|
8
|
GND
|
grounding
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|
Charging&4G card interface
|
|
1
|
Micro USB interface
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Charging&Parameter Configuration USB Interface
|
|
2
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Nano SIM card interface
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Self elastic Nano SIM card socket interface
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Indicator Light Display Definition
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NO.
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Name
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Indicator light display description
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|
1
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RTK
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Display RTK function and positioning status
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|
2
|
NET
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Display network connection status
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|
3
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BT
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Display Bluetooth function and connection status, blue light (HC02)
|
|
4
|
25%、50%、75%、100%
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Display the remaining battery level
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AK979DC Complete Solution:
Complete Solution Description
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NO.
|
Name
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Function Description
|
|
1
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Connecting
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Cable 8-core aviation connector to Type C; DC-DC power supply; Female DB9
|
|
2
|
Receiver
|
Built-in GNSS module, radio module, Bluetooth module (HC02),10400mAh lithium battery pack
|
|
3
|
base
|
M90SD strong magnetic suction cup
|
丨 Status indicator
|
NET (green) light
|
Chang Liang
|
The 4G module is powered on, but PPP dialing is not completed
|
|
flash mob
|
PPP dial-up completed
|
|
slow flash
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Registered RTK NTRIP base station
|
|
RTK (blue) light
|
Chang Liang
|
Not positioned
|
|
flash mob
|
Positioned but not entered RTK fixed solution
|
|
slow flash
|
RTK fixed solution
|
|
BT (blue) light
|
Chang Liang
|
Bluetooth connected
|
|
flash mob
|
Bluetooth not connected
|
|
Discharge
|
|
Electricity consumption C (%)
|
25% light
|
50% light
|
75% light
|
100% light
|
|
C≥75%
|
bright
|
bright
|
bright
|
bright
|
|
50%≤C≤75%
|
bright
|
bright
|
bright
|
extinguish
|
|
25%≤C≤50%
|
bright
|
bright
|
extinguish
|
extinguish
|
|
3%≤C≤25%
|
bright
|
extinguish
|
extinguish
|
extinguish
|
|
0%≤C≤3%
|
1.5Hz flicker
|
extinguish
|
extinguish
|
extinguish
|
|
Charge
|
|
be filled with
|
bright
|
bright
|
bright
|
bright
|
|
C≥75%
|
bright
|
bright
|
bright
|
0.5Hz flicker
|
|
50%≤C≤75%
|
bright
|
bright
|
0.5Hz flicker
|
extinguish
|
|
25%≤C≤50%
|
bright
|
0.5Hz flicker
|
extinguish
|
extinguish
|
|
C≤25%
|
0.5Hz flicker
|
extinguish
|
extinguish
|
extinguish
|
Packaging and Delivery：
