[Main](/) ❯ [Navigation & tracking systems](/navigation_and_tracking_systems_en) ❯ **uNav RWLT Radio dongle: Device specification**

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| ![logo](/documentation/sm_logo.png) | ![RWLT RF dongle](/documentation/uNav_rf_dongle.png) |
| :---: | ---: |
| [www.unavlab.com](https://www.unavlab.com/) <br/> [support@unavlab.com](mailto:support@unavlab.com) | **uNav RWLT RF dongle** - Navigation buoy signal receiver <br/> Device specification |

## KEY FEATURES

* **IP68 protection class**
* **GNSS receiver protocol emulation**
* **Built-in GNSS module**

## DESCRIPTION

The navigation buoy signal receiver of the **[RWLT](RWLT_DataBrief_en.md)** system receives signals from the [RWLT GIB](RWLT_GIB_Specification_en.md) navigation buoys and determines the location of the underwater object on which the [RWLT Pinger](RWLT_Pinger_Specification_en.md) pinger is located. The receiver is a maintenance-free monoblock on a cable.

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## TECHNICAL SPECIFICATIONS

| PARAMETER | VALUE |
| :--- | :--- |
| DIMENSIONS (Ø x h, w/o cable) | 90 x 330 mm |
| WEIGHT (w/ 10 m cable) | 1.4 kg |
| CABLE LENGTH | 10 m |
| CABLE DIAMETER | 10 ± 0.5 mm |
| OPERATING TEMPERATURE RANGE | -10 .. 50 °C |
| MAXIMUM RADIO COMMUNICATION RANGE<sup>[1](#footnote1)</sup> | 1000 m |
| RADIO COMMUNICATION | 433 MHz, receive only |
| CONNECTION | To a PC USB port via [Bat&Link Box](/documentation/EN/Zima/Bat_n_link_box_Specification_en) |
| INTERFACE | RS-422, 38400 baud |
| PROTOCOL | [NMEA0183 (GGA, RMC), UNV](/documentation/EN/RWLT/uNav_protocol_specification_en) |
| BUILT-IN GNSS module | GPS/GLONASS |
| HOUSING MATERIAL | Polyurethane |

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<a name="footnote1"><sup>1</sup></a> Achieved in the absence of interference, in open areas.  

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