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David GNSS Receiver

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Supports GPS L1/L2, GLONASS L1/L2, and BeiDou B1/B2
Supports RTCM2.3/3.x, CMR, CMR+ corrections
Easy to connect an external powerful radio for long range
20Hz raw measurement output for post processing
Supports Nuwa & FieldGenius surveying software
Supports 384 channels
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