Components / Receivers / Link LoRa

Link LoRa

Link LoRa gives you instant access to critical underwater data. Watch detections unfold in real time, track live sensor data, and download complete datasets as they are generated. Deploy multiple nodes equipped with Live receivers and Link LoRa units to cover entire areas, with each node having a transmission range of up to 5 km.

Key Advantages

Real-Time Detections and Tracking

See detections and sensor data as charts in real-time. Live fine-scale 3D positioning estimation is also possible due to the built-in GPS ensuring precise timing

Adaptable cable configurations

Choose the ideal cable length between the Live receiver and the Link main unit - up to several hundred meters - for reliable operation at significant depths.

Advanced Digital Signal Processing

Dynamic signal thresholding and SNR-based detection filtering provide longer range, reduced code collisions, and cleaner data in noisy environments.

Up To 3 Frequencies Simultaneously

Use multiple frequencies at the same time to double or triple the amount of transmitters in the same area without sacrificing data throughput

Long Battery Life

Choose between single or dual DD-cell configurations for the Link main unit - delivering up to 5 or 10 months of continuous operation.

Long range

Each LoRa node has a maximum range of up to 5 km enabling a powerful coverage even accross long distances.

All In One Package

Antenna with GPS, main unit, Live, LoRa gateway, and dashboard is included. All you need is a single data SIM or internet access point for the LoRaWAN gateway

How It Works

1. Live Receiver

The Live receiver picks up acoustic signals emitted by submerged transmitters.

2. Link Main Unit

The detections are relayed from the Live receiver directly to the Link main unit.

3. LoRa Antenna

The LoRa antenna is directly connected to the Link main module and periodically transmits data packets from the Link main unit to the LoRa gateway.

4. LoRa Gateway

The LoRa gateway connects to a local network via Wi-Fi or Ethernet, or to a mobile network using a data SIM card. It forwards data received from the Link LoRa nettwork to an MQTT broker service, enabling direct access to your data.

5. Web Dashboard

In addition to the MQTT broker, we offer a customizable web dashboard that lets you visualize and inspect data from your Link LoRa network in real time.

Rugged Design

Link LoRa is built for the toughest environments, featuring rugged, waterproof casings, cables, and connectors that ensure reliability in any weather. Flexible cable options allow placement of the Live hydrophone up to several hundred meters from the Link LoRa main unit, while a fixed 1 m cable provides an optimal connection to the antenna module.

Specifications

Specification	Value	Remark
Battery life	Up to 10 months	We offer units with either one or two DD cell batteries with a battery life of 5 or 10 months respectively
Range	3 - 5 km
Frequencies	63 - 77 kHz
Multi frequency	3 frequencies	Can monitor up to three frequencies simultaneously for flexible tracking
Operational Depth	Several hundred meters	We offer flexible cable lengths between the Live hydrophone and the Link main unit.
GPS	Yes
SIM-Card Included	No

Frequently used together

Live

Live is a digital, multi-frequency receiver (63–77 kHz) with precise millisecond-level timestamping for fine-scale positioning. It instantly transmits detections via RS-485, and its compact, rugged design makes it ideal for harsh environments where space is limited. Designed with a strong focus on energy efficiency, Live can operate directly from your field laptop or run for months - or even years - on small battery packs.

Configurable 6 - 16 mm Transmitters

Thelma Biotel transmitters are energy-efficient and versatile, designed for studies of aquatic species and underwater equipment. They come in five sizes: 6, 7, 9, 13, and 16 (based on diameter in mm). They can be tailored in length, power output, and battery life to fit your needs. They are used in wildlife tracking, aquaculture monitoring, and equipment monitoring. Whether you need an off-the-shelf solution or a tailor-made design, our transmitters can be configured for your exact requirements.