NS-HP is a high performance RTK capable GPS / GNSS receiver. NS-HP can accept RTCM 3.2 message type 1002, 1004  ~ 1006, 1074 ~ 1077, 1104, 1114 ~ 1117, and 1124 ~ 1127 or SkyTraq raw measurement data from a base station to perform carrier phase RTK processing, achieving centimeter-level accuracy relative positioning. Its raw measurement output is also compatible with RTKLIB if some user like to use it as raw measurement receiver.

One NS-HP is needed if wishing to use with other RTCM 3.2 RTK base station within 10Km operating range.

Two NS-HP is needed if wishing to setup a local NS-HP RTK base station to work with another NS-HP rover.

GNSS RECEIVER FEATURE
* L1/B1 C/A Code
* 20 channel GPS/SBAS/QZSS + 6 channel BDS
* Sensitivity: -148dBm cold start, -160dBm tracking
* 1Hz carrier phase raw measurement output on TX3 pin
* Position accuracy: 2.5m CEP
* Velocity accuracy: 0.1m/sec
* Timing accuracy: 10nsec
* 50mA @ 3.3V

RTK CAPABILITY FEATURE
* Support RTK base and rover modes
* 20 channel GPS/SBAS/QZSS + 6 channel BDS
* RTK position accuracy: centimeter-level @ <10Km baseline, decimeter-level @ >10Km baseline using Float RTK mode
* Moving base GPS compass heading accuracy: 0.07degree @ 2m baseline 
* 70mA @ 3.3V

DOWNLOADS
NS-HP User Guide (.pdf, ver 0.5, 20160624)
S2525F8-RTK Datasheet (NS-HP is S2525F8-RTK with pin-stick, .pdf, ver 6, 20161005)
NS-HP Application

GNSS Viewer can be downloaded from RESOURCE page

RTK Post Process (generating RTK position from logged raw measurement files, 20161221) 

ADDITIONAL INFORMATION 

DIY Upgrade Your Smartphone GPS to 100X More Accurate RTK GPS
http://www.navsparkforum.com.tw/viewtopic.php?f=37&t=306

High Precision Performance Measurement
http://www.navsparkforum.com.tw/viewtopic.php?f=37&t=311

NS-HP Firmware Update (SBAS, BDS, Float RTK, GPGST, Moving Base Precision Heading)
http://www.navsparkforum.com.tw/viewtopic.php?f=38&t=366

Hover & Return to Launch Demo Using 3DR Iris + NS-HP-5 RTK Receiver
http://www.navsparkforum.com.tw/viewtopic.php?f=37&t=314&hilit=return

ORDER OPTIONS

GPS/Beidou antenna will work better with NS-HP.

Check out S2525F8-RTK product page for NS-HP without PCB & pin-stick.

Note that GPS/Beidou antenna will work better with NS-HP.

FIRMWARE UPDATE

NS-HP (20170109)

NS-HP-5 (20170109)

NS-HP-5S (20170109)

NS-HP-10 (20170109)

NS-HP-10S (20170109)

OTHER ITEMS OF INTEREST

Antenna : http://navspark.mybigcommerce.com/tri-band-gps-galileo-beidou-glonass-active-antenna/

SMA-to-UFL connector cable: http://navspark.mybigcommerce.com/sma-to-u-fl-connector-cable-4pcs-set/

UART-to-USB : http://navspark.mybigcommerce.com/uart-to-usb-adapter-board/

                      http://navspark.mybigcommerce.com/navspark-mini-uart-to-usb-adapter/