ISM02 - Long Range, Low Power, sub-GHz RF Transceiver

ISM02A is a telemetry module based on the Semtech SX1262 RF transceiver. This module is widely used in LoRa and other sub-GHz wireless communication applications. It incorporates an RF switch (PE4259) to multiplex RX and TX on a single antenna, making it a compact solution for IoT and telemetry use cases.

Features

• RF Transceiver: SX1262
  • More power-efficient compared to the SX127x series
  • Additional features with a smaller footprint and fewer external components
  • Operating frequency range: 150 MHz to 960 MHz
  • Supports LoRa and (G)FSK modulation
  • Maximum output power: +22 dBm
  • Low power consumption: 4.2 mA in receive mode
  • Complies with ETSI EN 300 220, FCC CFR 47 Part 15, and other global ISM band regulations
• RF Switch: PE4259 UltraCMOS RF switch
  • Frequency range: 10 MHz – 3000 MHz
  • Low insertion loss: 0.35 dB @ 1000 MHz
  • High isolation: 30 dB @ 1000 MHz
  • High ESD tolerance of 2 kV HBM
  • Used to multiplex RX and TX on a single antenna

The module is typically used as a LoRa device and offers flexible wireless communication for various low-power, long-range applications.

Applications

• Remote sensors
• Agricultural sensors
• HAB/stratospheric balloon tracking and telemetry
• Remote control applications (UAVs, Robots)

Specifications

Parameter	Value	Description
Dimensions	50.292 x 29.972 mm	Physical size of the module
Frequency Range	150 MHz – 960 MHz	Supports sub-GHz ISM bands
Modulation Types	LoRa, FSK	Supports LoRaWAN and proprietary
Max Output Power	+22 dBm	Using SX1262
Power Consumption	4.2 mA in Rx mode	Low power consumption
RF Switch	PE4259	Used for antenna multiplexing

Additional Resources

• SX1262 Datasheet
• PE4259 Datasheet