RTM3993 UHF Reader Modem Board

///RTM3993 UHF Reader Modem Board

RTM3993 UHF Reader Modem Board

RTM3993 is a long-range and small size 900MHz (UHF) reader modem board embedded with STM chip ST25RU3993 following EPC Class 1 Gen 2. RTM3993 offers high sensitivity, while being robust against antenna reflections or self-jamming. This is essential for user where antenna design is challenging and long battery lifetimes are critical.

RTM3993 offers a flexible feature set being a market proven solution from the handheld consumer up to the industrial reader space. It supports dual antennas with high output power to reach wide area coverage.

This module has integrated STM ST25RU3993 and STM32F030CCT6 to make it easy to use in the application product without requesting know-how of sensitive circuitry and RF design technics. Customer can optionally use two antenna ports on module for end-product development so as to wider the operation range.

The embedded firmware is either working with ST25RU3993 Reader Suite or RTBTM01 BLE module (stack version 4.1). In BLE mode, an android demo APPS is available for customer installation.

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Product Description


  • Operating band: 902-928MHz/865-868MHz
  • Output power: +30dBm
  • Rx Sensitivity: -75dBm
  • Built-in Carrier cancellation
  • Frequency hopping support
  • Protocol support for:
    • ISO 18000-6C (EPC Class1 Gen2)
    • ISO 18000-6A/B through direct mode
  • RF connectors: two antenna ports, IPEX type.
  • Output interface: 2x UART, 24-pin 2.54mm pitch DIP package, easy to be integrated into a baseboard
  • Power Supply: +5VDC supply
  • Current: <1A
  • Outstanding sensing range*: up to 10 meters
  • Dimensions: 69mm X 50mm X 14mm (w/24-pin connector)
  • Operation temperature: -30°C to +85°C
  • FCC/CE certification as optional



  • Consumer, industrial and medical applications
  • Authentication, Counterfeiting
  • Hand-held readers
  • Mobile UHF RFID readers
  • Stationary readers




Software & Tools:


Ordering Code:

RTM3993:              RTM3993 UHF Reader Modem Board V2.0

Ordering information:      Please contact local distributors or email to sales@rfcom-tech.com


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