# Introduction

The RoboDot Touch is a portable and versatile GNSS L1/L2 RTK and PPK Base/Rover and Range Extender suitable for RTK mapping with drones, capturing ground control points and GIS applications with cellphone apps. The unit is manufactured by Robota ([www.robota.us](http://www.robota.us))

![RoboDot Touch Features](https://slabstatic.com/prod/assets/mxcf1h97/post/nl6z46s2/preimages/sJwjpvKkh-Me1nmj_2DBulJe.png)

## Additional Resources <a href="#additional-resources" id="additional-resources"></a>

### Robota Youtube [Channel](https://youtube.com/@robotaweb)

### Blog [Posts](https://www.robota.us/blog)

## Specifications <a href="#specifications" id="specifications"></a>

<table data-header-hidden><thead><tr><th></th><th width="249"></th><th></th></tr></thead><tbody><tr><td><strong>Item</strong></td><td><strong>Condition</strong></td><td><strong>Value</strong></td></tr><tr><td>Run Time</td><td>Full Power, full charge</td><td>8+ hours</td></tr><tr><td>Charge time</td><td>Device off</td><td>3 hours</td></tr><tr><td>Charge current</td><td>5v via USB-c</td><td>1A</td></tr><tr><td>Battery capacity (Li-Ion)</td><td></td><td>7.2 wH</td></tr><tr><td>Wi-Fi Range</td><td>Line of sight on 1M pole, iPhone</td><td>150 meter radius</td></tr><tr><td>Wi-Fi Frequency</td><td></td><td>2.4 Ghz</td></tr><tr><td>Weight</td><td></td><td>6oz</td></tr><tr><td>Size (base)</td><td>Without Antenna</td><td>2.2 x 2.2 x 2.3 in</td></tr><tr><td>Height</td><td>With Antenna</td><td>4.7 inches</td></tr><tr><td>PCO – Phase Center Offset</td><td></td><td>9.4 cm above base</td></tr><tr><td>ARP – Antenna Reference Point</td><td></td><td>Bottom of RoboDot</td></tr><tr><td>Satellite Constellations</td><td></td><td>GPS, GLONASS, Galileo, BeiDou</td></tr><tr><td>Satellite Frequencies Received</td><td>Antenna #1</td><td>L1/L2, G1/G2, B1, E1</td></tr><tr><td>Lora Radio Frequency</td><td>If enabled</td><td>915mhz</td></tr><tr><td>Lora Radio Range</td><td>Line of sight - factory antenna</td><td>1km</td></tr><tr><td>Horizontal Accuracy</td><td>10km baseline length</td><td>0.01 m + 1 ppm CEP</td></tr></tbody></table>