NS-HP-GL RTK Performance

Below shows test result of NS-HP-GL GPS/GLONASS RTK receiver.

Short Baseline 15 Hour Testing 

Accuracy: CEP 50% 0.33cm, R95 0.69cm, SEP 50% 0.63cm

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Short Baseline Recycle Power Time to RTK Fix Testing, 75 Trials

Average time to RTK Fix 23 sec

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Longer Baseline Time to RTK Fix Testing, 5 Trials Each

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11Km Baseline Drive Test Using Survey Grade HX-CSX601A Antenna and Tallysman TW2710 Antenna Placed on Roof-Top of a Car (Blue: RTK Fix, Green: RTK Float)

Using HX-CSX601A Antenna

Using TW2710 Antenna

Combined View

Zoom-In View

Zoom-In View

At this farther than 10Km baseline testing, the survey grade HX-CSX601A antenna generates higher quality measurements and performs better than the TW2710 antenna, resulting in all RTK Fix solutions. Note that even though TW2710 has some RTK Float points, it is as good as RTK Fix points due to SkyTraq's well engineered receiver algorithm; unlike some other brand RTK receivers having large position jumps when changing state from RTK Fix to RTK Float.

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National Chiao Tung University Running Track Walking 7 Laps Short Baseline Test

On outer tracks, although at some places there are trees and building nearby blocking partial sky, the result tracks run in parallel without any jumps. 

Number of Satellites in Use for the 7 Laps

HDOP for the 7 Laps

Moving Base RTK Heading Accuracy

15m baseline moving base heading output example

Some single-frequency RTK receivers list 10sec RTK initialization time without specifying under what special condition it's being tested, which generally is not true for other usage cases. NS-HP-GL too can also demonstrate near 10sec RTK initialization time for constrained moving base application. NS-HP-GL is S2525F8-GL-RTK module in breakout board form; below video is S2525F8-GL-RTK module in evaluation board form showing an average of 11sec RTK initialization time.