Ultra-Long Range 2.4 GHz Transceiver for Digital Voice & Data Applications

CML Microcircuits has released a new transceiver designed to sustain secure digital voice and data communications channels over long distances (upto 12 km line of sight) for systems operating unlicensed bands.

The SCT2400 is a highly integrated digital radio transceiver based on spread spectrum modulation that operates in the 2.4 GHz frequency band. The transceiver can be deployed in multiple geographical regions in products operating in both licensed and unlicensed applications. Its exceptional range of over 12 km (line of sight) with 100 mW of output power is achieved while consuming just 10 mA in scan mode, around 52 mA when receiving voice and just 64 mA when transmitting voice. Its low power credentials and security features make it an ideal solution for a range of digital voice and data applications.

The features integrated into the SCT2400 include CML’s voice coding expertise and advanced forward error correction, meaning it can maintain clarity and security over long ranges in low power radio systems such as Private Mobile Radio (PMR) and Land Mobile Radio (LMR). This will enable PMR/LMR to move from disparate and regional bandwidths into the 2.4 GHz ISM band, now globally recognized as the preferred license-free operating frequency. Adopting the SCT2400 in new designs will enable manufacturers to standardize on a single platform for multiple regions, while the support for short data messages will also elevate the feature set of PMR/LMR and allow it to address new markets and emerging applications.

The new transceiver achieves a power consumption that is up to a factor of five better than competing products targeting PMR. Its low power dissipation and small size (10 mm x 10 mm, 144-BGA package) means it can be used in portable, mobile and wearable products, including fitness trackers, smart clothing and wireless headsets. It operates from a single 3V supply and supports digital voice modes that include peer to peer, group call and broadcast, along with an SMS data mode.

The SCT2400 enables developers to realize innovative solutions in smaller form factors, while delivering exceptional battery life when compared to current radios. This gives customers the potential to achieve exceptionally long-range voice and data communications.

Click here to learn more about the SCT2400.

Featured Content