Difference between revisions of "GEM1305"

From DATAGNSS Wiki
Jump to navigation Jump to search
 
(16 intermediate revisions by the same user not shown)
Line 3: Line 3:
<br>
<br>


 
__NOTOC__
GEM1305 is a high performance dual-band RTK module with build-in antenna, which is based on CYNOSURE series chipset. <br>It supports BDS-3
GEM1305 is a high performance dual-band RTK module with build-in antenna, which is based on CYNOSURE series chipset. <br>It supports BDS-3
signals, along with global civil navigation systems, including GPS, BDS, GLONASS, Galileo, QZSS,
signals, along with global civil navigation systems, including GPS, BDS, GLONASS, Galileo, QZSS,
Line 22: Line 22:
|-
|-
| GEM1305-4540A00
| GEM1305-4540A00
| Based on HD9311 CYNOSURE II GNSS SoC
| Based on CYNOSURE III GNSS SoC
|-
|-
| GEM1305-4540A01
| GEM1305-4540A01
| Based on HD9511 CYNOSURE III GNSS SoC
| Based on CYNOSURE IV GNSS SoC
|}
|}


[[File:GEM1305-1-v2.png|400px|frameless|GEM1305 dual-band RTK smart antenna]]
[[File:GEM1305-4540-A0-MAIN-02-720x548.png|400px|frameless|GEM1305 dual-band RTK smart antenna]]


=== Specifications ===
=== Specifications ===
Line 67: Line 67:
| Dimensions(mm) || 55 x 55 x 13  
| Dimensions(mm) || 55 x 55 x 13  
|-
|-
| Weight (g)|| 85g
| Weight (g)|| 50g
|}
|}


Line 136: Line 136:
|-
|-
| Baudrate
| Baudrate
| colspan="3" | 115200 bps, by default
| colspan="3" | 230400 bps, by default
|-
|-
| rowspan="3" | Operating condition
| rowspan="3" | Operating condition
| colspan="2" | Main supply
| colspan="2" | Main supply
| 1.75V to 3.63V
| 5V
|-
|-
| colspan="2" | Digital I/O supply
| colspan="2" | Digital I/O supply
Line 168: Line 168:
|-
|-
| colspan="2" | SPI[2]
| colspan="2" | SPI[2]
| 1
| -
|-
|-
| colspan="2" | I2C[2]
| colspan="2" | I2C[2]
| 1
| -
|-
|-
| rowspan="2" | Operating limit
| rowspan="2" | Operating limit
Line 193: Line 193:


[2] Supported upon request with special firmware
[2] Supported upon request with special firmware


=== Hardware Description ===
=== Hardware Description ===


[[File:GEM1305-2-v2.png|500px|frameless|GEM1305 dual-band RTK smart antenna]]
[[File:GEM1305-main-a1.png|500px|frameless|GEM1305 dual-band RTK smart antenna]]
 
[[File:GEM1305-main-a1.jpg|500px|frameless|GEM1305 dual-band RTK smart antenna]]
 
Pitch connector 2.54mm (left side of above picture)
* 3.3V
* NC
* Tx, TTL level of GNSS module
* Rx, TTL level of GNSS module
* GND
This 2.54 pitch connector is the input/output data connector, support power supply 3.3v for external module like Bluetooth, Radio.


Connector JST 1.25 5pin / 2.54 pitch connector is the main power supply and input/output connector:
CON_0(J6): 1.25mm pitch 6P connector
Pinout:
* GND
* GND
* NC
* NC
* Rx,TTL level of GNSS module
* Rx of GNSS module
* Tx,TTL level of GNSS module
* Tx of GNSS module
* 5V, input,max current:200mA
* 5V, input,max current:200mA


Note: The above Rx pin here be directly connected to the Rx pin of the Host.


[[File:GEM1305-test-1.png|200px|frameless|GEM1305 test]]
CON_1(J5): Pin header connector 2.54mm
* GND
* NC
* Tx of GNSS module
* Rx of GNSS module
* 5V


=== Package list ===
=== Package list ===
* GEM1305 receiver
* GEM1305 receiver
* USB-to-Serial test cable (CH340-based)
* USB-to-Serial test cable (CH340-based,Red:5V Black:GND Green:Tx White:Rx)


[[File:GEM1305-cable.png|200px|frameless|GEM1305 usb-to-serial cable]]
[[File:GEM1305-cable.png|200px|frameless|GEM1305 usb-to-serial cable]]
=== Design files ===
*[[File:GEM1305-2D-Drawing.pdf | GEM1305 2D drawing]]


=== Related Documents ===
=== Related Documents ===

Latest revision as of 17:15, 30 October 2024

GEM1305-4540A0

Buynow.png



GEM1305 is a high performance dual-band RTK module with build-in antenna, which is based on CYNOSURE series chipset.
It supports BDS-3 signals, along with global civil navigation systems, including GPS, BDS, GLONASS, Galileo, QZSS, and SBAS.

Feature

  • Supports GPS, BDS, GLONASS, Galileo, QZSS, and SBAS
  • Integrated Real Time Kinematics (RTK)
  • State-of-the-art low power consumption design
  • Supports multi-band multi-system high precision raw data output, easy for 3rd party integration
  • The best cost-effective high precision GNSS positioning solution integrated with antenna
  • Compact size 55*55*15mm with high performance
P/N Details
GEM1305-4540A00 Based on CYNOSURE III GNSS SoC
GEM1305-4540A01 Based on CYNOSURE IV GNSS SoC

GEM1305 dual-band RTK smart antenna

Specifications

Antenna

Item Specs
Frequency Range(MHz) GPS/QZSS L1,L5, BDS B1,B2,
GLONASS L1, GALILEO E1/E5a
Polarization Right-hand circular
Gain(dBi) 90° L1≥5.5 L2≥5 L5≥2.5
Phase center error(mm) ≤±2.0
Axial Ratio (dB) 90°≤3.0
LNA Gain(dB) 38±2
V.S.W.R ≤2.0
Noise Figure (dB) ≤1.8
DC Voltage (V) 5.0～5.5
Current (mA) ≤80mA
Impedance(Ω) 50
Relative Humidity 95%
Operating Temperature(℃) -40～+85
Storage Temperature (℃) -55～+85
Dimensions(mm) 55 x 55 x 13
Weight (g) 50g

GNSS

Parameter Specifications
Constellations BDS, GPS, QZSS, GLONASS, Galileo, NavIC, SBAS
Channel 128
Update rates 10Hz
Position accuracy GNSS 1.0m CEP
SBAS ＜1.0m CEP
RTK 1.0 cm + 1 ppm (H)
2.0 cm + 1 ppm (V)
Velocity & Time accuracy GNSS 0.05 m/s CEP
1PPS 20ns RMS
TTFF Hot start 1s
Cold start 27s
RTK Convergence time <10s
Reliability ＞99.9%
Sensitivity[1] Cold start -148 dBm
Hot start -155 dBm
Reacquisition -158 dBm
Tracking & navigation -165 dBm
Protocol NMEA-0183
RTCM 2.X, RTCM 3.X
Baudrate 230400 bps, by default
Operating condition Main supply 5V
Digital I/O supply 1.75V to 3.63V
Backup supply 1.62V to 3.63V
Power consumption Tracking GNSS 30 mA @ 3.3V
Single system 18 mA @ 3.3V
Standby Data backup 16 uA
RTC 1.4 uA
Serial interface UART 2
SPI[2] -
I2C[2] -
Operating limit Velocity 515 m/s
Altitude 18,000m
Environmental conditions Operating temp. -40°C to +85°C
Storage temp. -40°C to +90°C
Humidity 95% RH

[1] tested with a good external LNA

[2] Supported upon request with special firmware

Hardware Description

GEM1305 dual-band RTK smart antenna

CON_0(J6): 1.25mm pitch 6P connector Pinout:

  • GND
  • NC
  • Rx of GNSS module
  • Tx of GNSS module
  • 5V, input,max current:200mA


CON_1(J5): Pin header connector 2.54mm

  • GND
  • NC
  • Tx of GNSS module
  • Rx of GNSS module
  • 5V

Package list

  • GEM1305 receiver
  • USB-to-Serial test cable (CH340-based,Red:5V Black:GND Green:Tx White:Rx)

GEM1305 usb-to-serial cable

Design files

Related Documents

Retrieved from "https://wiki.datagnss.com/index.php?title=GEM1305&oldid=1170"