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ComNav’s K501 GNSS OEM board is the first small-sized GPS+BeiDou OEM board. The K501 has advanced dynamic acquisition ability and high accuracy carrier phase algorithms. By using the dual GNSS constellations, our high dynamic processing engine delivers the results even in very challenging environments for GNSS use. Using the K501, you can achieve centimetre RTK positioning accuracy. The hardware size, interface, data command are designed for compatibility with major brands’ OEM host boards.
· GPS L1/L2+BeiDou B1/B2/B3 dual satellite system calculating
· Configurable GPS/BeiDou single system positioning and GPS+BeiDou dual system positioning
· Compatible with other major brands on physical size, interface and data command
· Supports long baseline E-RTK1
· Easy to customize
· Built in 100M internal memory
Signal Tracking |
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Channels |
120 Channels |
GPS |
L1 C/A code, L1/L2 P code |
BeiDou |
B1, B2, B3 (Optional) |
SBAS |
WAAS, EGNOS, MSAS,GAGAN |
Performance Specifications |
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Cold start |
<50s |
Warm start |
<35s |
Hot start |
<15s |
Signal re-acquisition |
<2s |
Velocity Accuracy |
0.03m/s |
Acceleration |
4g |
Overload |
15g |
Positioning Specifications |
Post Processing
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2.5 mm + 1 ppm Horizontal
5 mm + 1 ppm Vertical |
Single Baseline RTK |
10 mm + 1 ppm Horizontal
20 mm + 1 ppm Vertical |
E-RTK1(<100km) |
0.2 m +1 ppm Horizontal
0.4 m +1 ppm Vertical |
DGPS |
0.5 m 3D RMS |
SBAS |
1 m 3D RMS |
Standalone |
1.5 m 3D RMS |
Time Precision |
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GPS |
20ns |
BeiDou |
30ns |
GPS+BeiDou |
20ns |
Communications |
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Communication port
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3 LV-TTL Ports, RS232 Ports - Baud rates up to 921,600 bps |
Positioning data outputs
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1 Hz, 5 Hz & 10 Hz (depends on installed option) |
Raw data outputs |
1 Hz, 2 Hz, 5Hz & 10 Hz (depends on installed option) |
PPS |
1 Pulse Per Second Output |
Event marker |
Event marker input |
Indicating light |
3 LED Indicating light (indicating Power, Satellite Tracking and Differential Data) |
Data Format |
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Correction data I/O |
RTCM 2.X, 3.X, CMR (GPS only), CMR + (GPS only) |
Position data outputs |
ASCII: NMEA-0183 GSV, RMC, HDT, VHD, GGA, GSA, ZDA, VTG, GST, PJK, PTNL
Extended NMEA-0183 BDGGA, GPNTR, GPCDT, GPHPR
ComNav Binary (compatible with major brands) |
Physical |
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Size(L×W×H) |
71.1mm×45.7mm×10.6mm |
I/O interface |
20-pin Double male header |
Weight |
25 g |
Antenna |
1×MCX receptacle (10MHz) |
Environmental |
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Working temperature |
-40℃ to +85℃ |
Storage temperature |
-55℃ to +95℃ |
Humidity |
95% no condensation |
Electrical |
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Input Voltage |
3.3-6 VDC |
Power consumption |
1.45 W |
Memory |
100MB |
Software |
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OEM Board setup |
ComNav Compass Receiver Utility software |
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