Product Overview
The N561AS-2W is an ultra-high-power narrowband RF module engineered for extreme-distance communication in demanding environments. It integrates STMicroelectronics’ S2-LP transceiver with a professional-grade PA and LNA, delivering an exceptional +33 dBm (2W) output power and -126 dBm receiver sensitivity. This combination creates an industry-leading link budget, enabling stable communication beyond 15 kilometers, making it the definitive solution for wide-area IoT, remote industrial telemetry, and mission-critical monitoring.

Key Features & Benefits

Industry-Leading Transmit Power: Provides +33 dBm (2Watt) of continuous wave output power, dramatically increasing signal coverage range and penetration capability to tackle the most complex wireless environments.
Unmatched Link Reliability: The combination of high-power transmission and high-sensitivity reception builds unparalleled link redundancy, ensuring communication stability in interference-prone environments or at extreme ranges.
Extended Operational Range: Engineered to enable reliable communication links beyond 15 km under ideal line-of-sight conditions, redefining the limits of sub-GHz connectivity.
Enhanced Narrowband Performance: Supports programmable data rates and narrow channel spacing for spectrally efficient operation, ideal for licensed or crowded spectrum.
Robust Industrial Design: Features an extended operational temperature range and is built for reliability in outdoor and industrial settings.

Technical Specifications

Category	Parameter	Specification
RF & Performance	Frequency Bands	433 MHz, 868 MHz, 915 MHz (Programmable within chip capabilities)
	Max. Output Power	+33 dBm (2 Watt)
	Receiver Sensitivity	-126 dBm @ 1.2 kbps
	Modulation	2(G)FSK, 4(G)FSK, OOK, ASK
	Data Rate	0.3 – 200 kbps
	Typical Range	> 15,000 m (LoS, with 3 dBi antenna, 1.2 kbps)
Electrical	Core Supply Voltage (VDD)	3.3 V
	PA Supply Voltage (VCC_PA)	5.0 V
	TX Current (@ +33 dBm)	1100 mA (typical, on 5V PA supply)
	RX Current	14 mA (typical)
	Sleep Current	1 µA (typical)
Physical & Interface	Dimensions	36.0 x 24.0 x 3.0 mm
	Host Interface	SPI
	Antenna Interface	IPEX Connector & RF Pad (50Ω)
	Package	Surface Mount (SMD)
Environmental	Operating Temperature	-30°C to +85°C

Applications

The N561AS-2W is designed for mission-critical, long-range applications where maximum power and reliability are paramount:

Long-Range Industrial SCADA: Monitoring and control of remote infrastructure like pipelines, transmission grids, and water systems.
Wide-Area Environmental & Agricultural Sensing: Large-scale farm monitoring, forest fire detection, and ecological research networks.
Professional Asset Tracking & Logistics: Tracking high-value assets across vast areas such as mining sites, ports, and railways.
Backhaul for Critical Networks: Providing reliable links for data aggregation from multiple remote sites.
Specialized Security & Surveillance Systems: Long-perimeter monitoring and remote area surveillance.

Development & Integration Notes

Power Supply Design: Requires a stable 5.0V, >1.2A supply for the PA and a clean 3.3V supply for the core. Proper decoupling and potential heat sinking are crucial.
Antenna System: Must use a 2W-rated antenna and high-quality feedline to handle the power and minimize losses for optimal range.
Thermal Management: Ensure the host PCB provides adequate ground plane copper pour for heat dissipation. Consideration for airflow or heatsinking may be necessary in continuous transmission scenarios.
Regulatory Compliance: Due to its high power, special attention must be paid to local radio regulations (EIRP limits, licensing). The module is designed as a component for licensed or professionally deployed systems.

Ordering Information

Model Number	Core IC	Target Frequency Band	Output Power
N561AS-2W-433M	S2-LP + High-Power PA/LNA	410 – 480 MHz	+33 dBm (2W)
N561AS-2W-868M	S2-LP + High-Power PA/LNA	860 – 880 MHz	+33 dBm (2W)
N561AS-2W-915M	S2-LP + High-Power PA/LNA	910 – 960 MHz	+33 dBm (2W)

Why Choose the N561AS-2W Module?

The N561AS-2W pushes the boundaries of what's possible with sub-GHz wireless technology. It translates extreme RF power into tangible benefits: unprecedented range, unwavering signal strength, and ultimate reliability. By integrating this complex high-power RF design into a single module, we eliminate the significant engineering challenge and risk, allowing you to focus on deploying your long-range application with confidence. It is the definitive choice when communication distance is the critical factor.

For detailed datasheets, regulatory guidance, and system design support, please contact our technical team.

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For technical documentation, application notes, or technical support, please contact our sales team.

Choosing the Right Solution for Your Project
The N561AS-2W is part of our dedicated high-performance (G)FSK solution family. Use the guide below to find your ideal match.

Comparison	N560AS Module	N561AS-2W Module	LoRa®-Based Solutions
Core IC	S2-LP	S2-LP + High-Power PA/LNA	SX1262
Output Power	+15 dBm	+33 dBm (2W)	+22 dBm to +37 dBm
Protocol	(G)FSK	(G)FSK	LoRa®, (G)FSK
Key Value	Cost-optimized, good urban range	Maximum range, penetration & link robustness	LPWAN-ready, ultra-low power
Ideal For	Short-medium range telemetry, industrial control	<u>Your current view</u>: Extreme-range telemetry & control in harsh conditions	Battery-operated sensors, LoRaWAN networks
Next Step	[View N560AS Details]	`⤓ Download Full Datasheet`	[Explore LoRa Modules »]

How to Decide:

Choose the N561AS-2W if your application demands the absolute maximum range and signal robustness using (G)FSK/OOK/ASK protocols (e.g., remote SCADA, backhaul links).
Consider the N560AS if you need a reliable, cost-effective (G)FSK solution for shorter distances.
Explore our LoRa® Modules if your project requires LoRaWAN® connectivity, exceptional sensitivity, or the lowest possible power consumption for battery-powered sensors.

Ordering Information