LoRa1121 Series Wireless Communication Module Selection and Comparison

Product Positioning

Standard power module, FCC/CE certified, suitable for typical IoT applications

High-power (2W) module, supports Sub-GHz + 1.9GHz S-band

High-power (2W) module, supports Sub-GHz + 2.4GHz band

Power Level

Standard power (typically < 1W)

High power 2W

High power 2W

Frequency Support

Sub-GHz: 433/470/868/915 MHz
High band: 2.4 GHz

Sub-GHz: 433/470/868/915 MHz
High band: 1.9 GHz (S-band)

Sub-GHz: 433/470/868/915 MHz
High band: 2.4 GHz

Typical Applications

Smart city, agricultural monitoring, industrial sensing, projects requiring FCC/CE certification

Long-range communication, specialized industries (e.g., emergency communication, industrial control)

High data rate and low-latency transmission, such as video surveillance and UAV data links

Certification

FCC/CE

High-power version, certification depends on region

High-power version, certification depends on region

Summary

Basic version, standard power, advantages are certification and universality

High power, extended to 1.9 GHz, suitable for specific industries

High power, extended to 2.4 GHz, suitable for both long-distance and high data rate scenarios

LoRa1121 (Website)

160mW

-

LoRa1121 (Datasheet)

Max 22dBm (~160mW)

Max 11dBm

LoRa1121F33-1G9

2W @ 433/470 MHz, 1W @ 868/915 MHz

1W @ 1.9GHz

LoRa1121F33-2G4

2W @ 433/470 MHz, 1W @ 868/915 MHz

1W @ 2.4GHz

LoRa1121 (Datasheet)

1.8V - 3.6V

Low-voltage design

LoRa1121F33-1G9

3.0V - 5.5V

High voltage, high power

LoRa1121F33-2G4

3.0V - 5.5V

High voltage, high power

Operating Voltage Range

1.8V - 3.6V

3.0V - 5.5V

3.0V - 5.5V

TX Current @433MHz

<110mA

<900mA

<900mA

TX Current @868MHz

-

-

<1000mA

TX Current @915MHz

-

-

<1000mA

TX Current @1.9GHz

-

<750mA

-

TX Current @2.4GHz

<36mA

-

<1200mA

RX Current @Sub-GHz

<6mA

<9mA

<8mA

RX Current @High Band

<7mA

-

24–29mA

Sleep Current

<1µA

<18µA

<20µA

Sub-GHz TX Power

20–33dBm

18–33dBm @433MHz, 10–31dBm @868/915MHz

High Band TX Power

17–30dBm @1.9GHz

22–30dBm @2.4GHz

Sub-GHz RX Sensitivity

-142dBm @BW=62.5KHz, SF=12

-142dBm @BW=62.5KHz, SF=12

S-band RX Sensitivity

-132dBm @BW=125KHz, SF=12

-

2.4GHz RX Sensitivity

-

-129dBm @BW=406KHz, SF=7

Frequency Error

0.5ppm

0.5ppm

Package Type

15.0×19.72mm compact stamp-hole design

39.0×21.0mm high-power stamp-hole design

39.0×21.0mm high-power stamp-hole design

Antenna Interface

Stamp-hole antenna interface

Stamp-hole + IPEX shared design

Stamp-hole + IPEX shared design

Pin Configuration

17 pins
• SPI: MISO, MOSI, SCK, NSS
• Dual Antenna: ANT@Sub-GHz, 2.4/S_ANT
• Control: RST, BUSY, DIO9(IRQ)
• Power: VCC, GND

18 pins
• SPI: MISO, MOSI, SCK, NSS
• Dual Antenna: ANT@Sub-GHz, ANT_1G9
• Control: RESET, BUSY, DIO9(IRQ)
• Power: VCC, GND, CE enable

18 pins
• SPI: MISO, MOSI, SCK, NSS
• Dual Antenna: ANT@Sub-GHz, ANT_2G4
• Control: RESET, BUSY, DIO9(IRQ)
• Power: VCC, GND, CE enable

Transmission Distance

≥5 km (open area, Sub-GHz)

≥10 km (open area, Sub-GHz)

≥10 km (open area, Sub-GHz)

Power Efficiency

Ultra-low power, battery-friendly

High power consumption, requires stable supply

High power consumption, requires stable supply

Frequency Applicability

433/470/868/915 MHz

433/470/868/915 MHz + 1.9 GHz (S-band)

433/470/868/915 MHz + 2.4 GHz

Certification

FCC, CE certified

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Application Cost

Low cost, suitable for mass IoT deployment

Higher cost, suitable for long-distance/high-power use

Higher cost, suitable for high-speed and long-distance use

Technical Highlights

—

• Industrial-grade TCXO ±0.5ppm
• Supports S-band satellite communication
• 2W Sub-GHz high-power output

• Built-in high-performance FEM, 30dBm @2.4GHz
• LNA gain 15dB, enhanced RX performance
• Multi-band power optimization design

Selection Recommendation

Standard IoT
• Advantages: Low power, compact, certified, cost-efficient
• Applications: Smart home, sensor networks, LoRaWAN

Long-distance/Satellite Communication
• Advantages: High power, S-band support, high reliability
• Applications: Industrial monitoring, agricultural IoT, emergency/marine communication

High-speed Data Transmission
• Advantages: 2.4GHz high power, FEM enhancement, high throughput
• Applications: UAV communication, video surveillance, low-latency IoT