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Small green USB stick with a PCB antenna and TCXO crystal

WaveShare

WaveShare USB to LoRa Module SX1262 TCXO

SKU CH-TFWQ-C828B

USB LoRa module with SX1262 chip, TCXO stability to 85 °C, 22 dBm output and -148 dBm sensitivity for secure industrial data links

  • TCXO oscillator maintains timing across 0–85 °C operating range
  • SX1262 chip delivers -148 dBm reception sensitivity for weak signals
  • 22 dBm transmit power extends wireless reach in field deployments
  • AES encryption with multi-level relay networking secures long-distance links
  • 960-byte cache plus LBT and RSSI enables reliable packet handling

USB LoRa module with SX1262 chip

This USB-to-LoRa adapter uses the SX1262 transceiver and a TCXO crystal oscillator for stable frequency control. It is intended for engineers and system integrators building long-range data-acquisition networks in industrial or agricultural environments. The module connects directly to a host computer or gateway over a standard USB interface.

TCXO oscillator and AES security

The fitted TCXO crystal allows reliable operation across a 0 to 85 Celsius range without frequency drift. On-board AES encryption protects payloads in transit, while multi-level relay networking extends the practical link distance. A 960-byte buffer, CRC checking, preamble detection and LBT transmission handling are managed by the firmware.

Half-duplex LoRa physical layer

Communication is half-duplex and subject to regional duty-cycle limits that restrict continuous transmission. The 22dBm output and -148dBm sensitivity set the theoretical link budget, but real-world range depends on antenna choice, obstacles and regulatory power caps. Buyers needing full-duplex or higher-throughput links should evaluate alternative radio technologies.

Highlights

  • TCXO oscillator maintains timing across 0–85 °C operating range
  • SX1262 chip delivers -148 dBm reception sensitivity for weak signals
  • 22 dBm transmit power extends wireless reach in field deployments
  • AES encryption with multi-level relay networking secures long-distance links
  • 960-byte cache plus LBT and RSSI enables reliable packet handling

Specifications

No published specifications for this item yet.

Questions about this item

How often does the TCXO crystal oscillator need recalibration when operated up to 85 °C?

The module uses a factory-trimmed TCXO rated for 0-85 °C; no user recalibration is required during its service life.

Which parameter reaches its ceiling first during continuous transmission at 22 dBm output?

The 960-byte transmit cache fills first, limiting burst length before the radio must pause for packet forwarding.

What is the steady-state power draw and thermal profile when the SX1262 runs all day at maximum output?

The adapter draws bus power only; the TCXO and SX1262 stay within the 0-85 °C rating with no active cooling needed.

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