Transceiver Tackles 2.4-GHz ISM Band Using DSSS Modulation

This battery-powered, 2.4-GHz ISM-band transceiver uses DSSS modulation to achieve a wireless communications range as great as 300 m.
Related To: 
March 18, 2026
Saelig
69b97fcbe56e6550c0a848d6 Demar52 Promo

Distributor Saelig Company Inc. recently introduced the STD-504 ISM-band wireless communications transceiver module, manufactured by Japanese firm Circuit Design Inc. Compliant with EN, FCC, ISED, and ARIB standards to serve global applications, the compact transceiver (see image above) operates on low voltage with high efficiency in battery-powered systems.

Equipped with a +3.3-V DC power supply, the device typically consumes 55-mA current during transmissions and 60 mA during reception. Capable of withstanding interference in the crowded 2.4-GHz wireless band, it provides line-of-sight (LOS) communications at distances to 300 m and beyond. 

Using direct-sequence spread-spectrum (DSSS) modulation technology, the transceiver incorporates two independent receiving circuits to capture the highest-level signals in the 2.4-GHz band. By selecting from multiple antennas, the transceiver can similarly optimize signal strength during transmissions.

The transceiver supports 75 RF channels and features an on-board temperature sensor for stable operation at data rates to 19.2 kb/s over wide operating temperature ranges.

Circuit Design supplies a range of low-power radio modules for industrial applications, including for monitoring, remote control, and telemetry purposes.

Learn more about transceiver modules

Radio Modules Offer Embedded Mobility
These compact radios employ MANET technology for scalability and ease of mobility, and plug-in frequency modules to adapt to the spectrum needs of different applications.
SiTime
These clock sources are available with LVCMOS outputs from 1 to 141 MHz, using several programmable operating parameters to significantly reduce EMI levels.
ID 128317197 © Dmitrii Melnikov | Dreamstime.com
dreamstime_m_128317197
With assistance from AI technology, cognitive radio systems will find space for signals in an increasingly crowded spectrum environment.
Image
New technologies and innovations and enhancements to existing abilities lead the list of trends to watch for over the next five years or so.

About the Author

Jack Browne

Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.