industry news
Subscribe Now

Saelig Announces the STD-504 Compact True-Diversity 2.4 GHz Radio Transceiver Module

The STD-504 radio transceiver from Circuit Design, a leading supplier of low power radio modules, is designed for reliable industrial communications in the congested 2.4 GHz band

Fairport, NY, USA: Saelig Company, Inc. has introduced the STD-504 transceiver, designed for reliable communication in the crowded the ISM 2.4 GHz band. Allowing for worldwide operation, the STF-504 is compliant with EN, FCC, ISED and ARIB standards to suit the global market. To ensure reliable communication, the module incorporates direct sequence spread spectrum technology, making it highly resistant to interference in the 2.4 GHz band. It can achieve over 300m line of sight communication. Low operating voltage proves useful when communicating using battery power.

True diversity in the form of two independent receiving circuits ensure the highest signal level is demodulated, providing communication stability and avoiding dropouts due to multipath interference. Additional transmitter diversity is available by selecting which antenna is used for transmission. Configuration using serial commands is possible, and additional data in/out terminals provide a transparent interface to use custom or existing protocols without adjustment. In addition to setting channels individually, a channel step option on the STD-504 allows the user to program and step through a channel plan (20 channels maximum) using a toggle pin.

 

AFG1005 Features

  • CE, FCC, ISED and ARIB compliant
  • STD-503 pin compatible
  • Uses direct sequence spread spectrum (DSSS) modulation
  • Channel stepping option controlled via CHC pin
  • A true diversity receiver (two built-in receiver circuits)
  • Transmitter diversity by antenna selection
  • Module settings using dedicated commands
  • Data communication using a transparent interface
  • Low power operation
  • 75 RF channels
  • TX: 55 mA, RX: 60 mA at 3.3 V
  • Data rate 19.2 kbps
  • Communication range 300 m LOS
  • Onboard temperature sensor

 

Aimed at industrial applications where reliable connections are essential, such as remote telecontrol or telemetry systems, the small and compact STD-504 is suitable for embedding in many kinds of industrial equipment.

Circuit Design, Inc. is a leading Japanese supplier of low-power radio modules, highly rated for quality and performance, which are used in numerous industrial applications such as industrial remote control, telemetry, monitoring systems, tracking systems, etc. For detailed specifications, free technical assistance, or additional information, please contact Saelig at 1-888-7SAELIG, via email: info@saelig.com, or by visiting https://www.saelig.com.

About Saelig Company Inc.

Founded in 1988 in Rochester, New York, Saelig is a North American distributor with a growing reputation for finding and sourcing remarkable, unique test and measurement and control products and components for use in a wide variety of industries. Products lines are continuously added from sources across the globe, and are offered at competitive prices, accompanied by full in-house technical support, exceptional customer service, and fast delivery. For full details of available product lines, please visit www.saelig.com.

Leave a Reply

featured blogs
Apr 2, 2026
Build, code, and explore with your own AI-powered Mars rover kit, inspired by NASA's Perseverance mission....

featured paper

Quickly and accurately identify inter-domain leakage issues in IC designs

Sponsored by Siemens Digital Industries Software

Power domain leakage is a major IC reliability issue, often missed by traditional tools. This white paper describes challenges of identifying leakage, types of false results, and presents Siemens EDA’s Insight Analyzer. The tool proactively finds true leakage paths, filters out false positives, and helps circuit designers quickly fix risks—enabling more robust, reliable chip designs. With detailed, context-aware analysis, designers save time and improve silicon quality.

Click to read more

featured chalk talk

Nexperia GaN Power Proliferating in All Things Motor Control/Drive
Sponsored by Mouser Electronics and Nexperia
In this episode of Chalk Talk, Art Gonsky from Nexperia and Amelia Dalton discuss the biggest challenges of electric motors and controllers and how GaN power solutions can help solve these issues. They  also investigate how silicon, silicon carbide and GaN power solutions compare and how Nexperia and NXP technologies can get your next motor control design up and running in no time!     
Mar 25, 2026
26,492 views