NB-Fi transceiver

Low Power Ultra Long Range Transceiver
Exceptional receiver sensitivity down to -148 dBm
Built-in Forward Error Correction
Low Power Consumption
860-925 MHz & 430-500 MHz frequency ranges
NB-Fi MAC Layer compatible
Part number
DBPSK modulation
Built-in Forward Error Correction
NB⁠-Fi MAC Layer compatible
Data rates
50, 100, 400, 3200, 25600 bps
Receiver sensitivity
-148 dBm @ 50 bps
-145 dBm @ 100 bps
-139 dBm @ 400 bps
-130 dBm @ 3200 bps
-121 dBm @ 25600 bps
Adjacent channel suppression
80 dB
DBPSK modulation
with Frequency Hopping support
Data rates
Up to 100 kbps using digital
pin-controlled phase modulator
Up to 25 600 bps for short
DBPSK messages (288 & 320 bits)
using built-in IQ modulator
Frequency generation
860 MHz - 925 MHz;
430 MHz - 500 MHz
RF Carrier Frequency
Programmable with < 10 Hz step
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
17 mA @ Low⁠-⁠current LNA mode
23 mA @ Low⁠-⁠NF LNA mode
Current - Transmitting
20 mA @ 8 dBm; 50 mA @ 15 dBm
Operating Temperature
-40°C ~ +85°C
Device Package
32-QFN (5×5)
Tape & Reel

The NB-Fi transceiver is a high-performance low power RF transceiver intended for RF wireless applications in the sub-1 GHz band.

The NB-Fi transceiver supports high performance NB Fi protocol with data rates of 50 - 25 600 bit/s with exceptional receiving sensitivity down to -148 dBm.

Besides transmitting of any DBPSK/BPSK modulated messages at data rates of up to 100 kbps using digital pin-controlled phase modulator, the NB-Fi transceiver supports sending of short (up to 320 bits) DBPSK messages at data rates of up to 25 600 bps using built-in IQ modulator. Thus, the NB-Fi transceiver allowing to transmit the NB-Fi messages, specified by the NB-Fi protocol, with enabled built-in IQ modulator. Using of the built-in IQ modulator allows to reduce MCU power consumption by transitioning it to the inactive state right after pushing the message to the transceiver’s RAM input stack.

The NB-Fi transceiver has exceptionally high sensitivity and enables developers of IoT devices to use all advantages of the NB-Fi technology simultaneously: long range of bidirectional data transmission, high selectivity and low power consumption. Together with WAVIoT base stations, the NB-Fi transceiver allows achieving the best link budget among other IoT solutions. The NB-Fi communications protocol and the WAVIoT system provide the protection of confidentiality and integrity of transmitted data by strong encryption algorithms.

NB-Fi technology enables transmission distance of up to 10 km in dense urban environment, and up to 30 km in rural area, ensuring minimum power consumption and high resistance to interference. One of the advantages of the new NB-Fi transceiver is chip-to-chip connectivity over a long distance (up to 10 kilometers). This allows building decentralized IoT solutions and mesh networks.

The NB-Fi transceiver operates in the 430 - 500 MHz and 860 - 925 MHz frequency ranges.

Free Subscription

Use NB-Fi transceivers and get free access to the NB-Fi server at WAVIoT IoT Platform

We offer to use WAVIoT cloud based IoT Platform for your IoT solutions. It’s a simple and reliable option for your applications. Use NB-Fi transceivers for wireless long-range communication in your IoT devices and get the benefits from using of WAVIoT IoT Platform.
Buy NB-Fi transceivers

WAVIoT IoT Platform

WAVIoT IoT Platform for the Internet of Things and the Industrial Internet of Things (IIoT) is a comprehensive solution to process all information from various IoT devices with NB-Fi transceiver that transmit data via the NB-Fi network.

WAVIoT IoT Platform can be used in Advanced Metering Infrastructure (AMI) and Smart Grid systems for power transmission and distribution, utility supply and management, energy services, agriculture, manufacturing, transport and logistics. WAVIoT IoT Platform collects, analyzes and stores data from millions of devices. The energy and utility sector will greatly benefit from the implementation of WAVIoT IoT Platform, as it reduces costs, increases convenience and improves security for the suppliers, customers and consumers.
WAVIoT IoT Platform is a cloud-based software that consists of the NB-Fi server (Head End System or HES) and the Meter Data Management System (MDM system or MDMS). WAVIoT IoT Platform collects and processes primary information from utility meters, sensors, gauges and other IoT devices, and provides tools for data analysis and visualization. Flexible API capabilities ensures integration with other IT systems, expanding the range of possible use cases.

WAVIoT IoT Platform can be installed in a corporate network and integrated with corporate AMI or enterprise system.

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Industry solutions

Build LPWAN IoT solutions for a wide range of industries requiring energy-efficient and long-distance data transmission with autonomous work, easy installation of devices, and fast ROI.

Industrial Automation

NB-Fi technology allows to design end-to-end IIoT applications helping businesses to implement efficient solutions that enable data exchange with devices and machines and ensure integration of automation in enterprise-level IT systems. With NB-Fi modems based on the NB-Fi transceiver, you will connect your devices to the NB-Fi Server and rapidly develop any kind of industrial application.
Learn more about IoT for enterprises

Smart Cities

IoT solutions for Smart Cities based on NB-Fi technology allow municipalities and utilities to make faster and better decisions that will lead to greater efficiency, safety and quality of life for people. More comprehensive and real-time data from devices, sensors and gauges gives the ability to monitor events, collect, analyze and use data to improve processes and optimize the consumption of valuable resources.
Learn more about IoT for Smart Cities

Smart Grids and Utilities

Positive examples of the implementation of Smart Grid and Advanced Metering Infrastructure projects in different countries show that it is possible to reduce the level of electricity losses in the grid by 20% of the total energy supply. Funds saved thanks to the reduction of losses can be used to implement Smart Grid infrastructure projects – installation of smart electricity meters, retrofitting of existing metering devices, launching of new services.
Improve utility efficiency with Advanced Meter Infrastructure based on NB-Fi

Smart Farming

The IoT-based smart farming system for collection and analysis of data from sensors (soil moisture, humidity, temperature) and for automation of the irrigation system helps farmers monitor the field conditions, improve the quality of decision-making and reduce the losses.
Why NB-Fi for Agriculture and Smart Farming?

Monitoring and Security

The IIoT solutions for remote monitoring of transportation and storage conditions, asset tracking and preventing product theft for supply chains, alarm systems and employee safety improve the business processes and prevent hazards.
Learn more about Smart Monitoring and Controlling using NB-Fi based IoT System