Wireless RF Modules and dongles for IoT | Coral RF

Product Overview
N535DP is a professional-grade USB radio dongle adapter engineered to 169 MHz ISM band. Used for Advanced Metering Infrastructure (AMI), industrial telemetry in Europe and other adopting regions. Integrates Texas Instruments CC1311R3 wireless microcontroller and Power Amplifier (PA). Delivering a robust +26 dBm output power.

This all-in-one, plug-and-play development tool is the ideal solution for prototyping, field testing, and deploying secure, long-range wireless applications in the smart utility and professional IoT sectors.

Key Features & Benefits

Dedicated 169 MHz Band Optimization: RF circuitry and antenna are meticulously tuned for the 160 – 175 MHz band spectrum.
High-Power, Long-Range Performance: +26 dBm of transmit power.
Carrier-Grade Frequency Stability: Integrated TCXO.
Complete, Ready-to-Use Development Platform: A user-programmable tactile button, a multi-color status LED, an integrated spring antenna (with IPEX connector for external options), and fully accessible debug pins (JTAG/SWD).

Target Applications

Smart Utility Metering (AMI): Development, testing, and deployment of Wireless M-Bus (wM-Bus), proprietary, or standards-based communication modules for smart water, gas, and electricity meters.
Industrial IoT for Energy & Utilities: Remote monitoring and control systems for substations, pipeline monitoring, distributed renewable energy assets, and grid automation.
Long-Range, Low-Interference Sensor Networks: Environmental monitoring, agricultural sensing, and asset tracking systems benefiting from the excellent propagation and reduced congestion of the 169 MHz band.
Protocol Compliance & Conformance Testing: A reliable tool for validating that end-products meet regional regulatory (e.g., ETSI EN 300 220) and functional standards for the 169 MHz band.

Technical Specifications

Category	Parameter	Specification
RF Core	Wireless Microcontroller	Texas Instruments CC1311R3
	RF Front-End	Integrated High-Efficiency Power Amplifier (PA)
	Frequency Reference	Temperature-Compensated Crystal Oscillator (TCXO)
RF Performance	Frequency Band	169 MHz (160 – 175 MHz)
	Maximum Output Power	+26 dBm (400 mW)
	Receiver Sensitivity	-110 dBm (typical @ 50 kbps)
	Data Symbol Rate	0.3 – 4000 kbps (software configurable)
	Modulation	2-(G)FSK, 4-FSK, MSK, OOK
	Typical Communication Range	> 1500 m (Line-of-sight, 50 kbps, 3 dBi antenna)
Hardware & Interfaces	Host Interface	USB 2.0 (appears as a standard CDC/ACM Virtual COM Port)
	User Interface	1x Programmable Tactile Switch, 1x Multi-color Status LED
	Antenna	SMA Antenna
	Debug / Programming	JTAG/SWD debug header pins accessible for in-circuit programming and debugging
	Operating Temperature	-40°C to +85°C
	Storage Temperature	-40°C to +105°C
	PCB Dimensions	41.0 x 20.0 x 7.0 mm
Electrical Characteristics	Supply Voltage	+5.0 VDC (Provided directly from the USB port, 4.75V – 5.25V range)
	Transmit Current (Peak)	~300 mA (typical @ +26 dBm output)
	Receive Current	~20 mA (typical)

Development Support

Software Development Kit (SDK): Fully compatible with Texas Instruments' SimpleLink™ CC13x2 SDK, providing a comprehensive software foundation including drivers, protocol stacks (including proprietary examples suitable for wM-Bus), and power management frameworks.
Programming: Firmware can be updated via the serial bootloader over USB or through the exposed JTAG/SWD interface for advanced debugging and development.
Documentation: Schematic of the reference design is available upon request to facilitate deep integration and customization.

Ordering Information

Model Number	Core Integrated Circuits	Target Frequency Band	Output Power	Key Application
N535DP-169M	CC1311R3 + Power Amplifier	160 – 175 MHz	+26 dBm	Smart Metering (wM-Bus), Utility IoT

Note: Enclosure color customization and volume pricing are available upon request.

Why Choose the N535DP Dongle?
N535DP dongle adapter eliminates the complexity and risk associated with developing 169 MHz wireless solutions from scratch. Provides a turn-key, high-performance, and reliable platform that accelerates your time-to-market. By combining industrial-grade hardware with the proven SimpleLink software ecosystem, allows developers and engineers to focus entirely on creating value-added application features rather than overcoming RF design and certification challenges.

Explore Our RF Dongle Adapter Portfolio

Product Series	Core Feature	Freq Feature	Best For	Action
N535BP	+26 dBm	433 MHz	Versatile multi-protocol development & testing	Explore N535BP‍
N535DP	+26 dBm	169 MHz	Superior range in complex environments	View N535DP
N537EP	+27 dBm	868/915 MHz	Enhanced range for standard bands	Explore N537EP
N534BP	+14 dBm	868/915 MHz	Cost-optimized reliable range	Explore N534BP
N534EP	+14 dBm	868/915 MHz	Cost-optimized reliable range	Explore N534EP