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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.

ISM02A Top ISM02A Bottom

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