

When investing in a new radio and considering the requirements that are important to you, if weight and comfort are paramount considerations, followed by the benefits of ETHOS' excellent system features, then the FrSky Tandem X18 series radios are obvious appropriate choices.
The Tandem X18 series dual-band telemetry radios benefit from an improved ergonomic design with rounded, more comfortable handles, as well as an improved case design to make the radio totally stable in the upright position. The radio features easy-to-reach sliders and switches, 4 standard stick fittings with 2 additional fittings added to offer greater flexibility with flight attitude settings while using the radio. The X18 series includes further enhancements with integrated flash storage that improves and simplifies operation and storage use, and the radio's interior has been designed with space and weight in mind, while retaining all ETHOS tuning and control functions for the pilot.
Internal dual-band 900 MHz/2.4 GHz and external module bay
The TD dual-band RF system combines both the features and benefits of FrSky 900 MHz and RF 2.4 GHz in a single system. The TD features true dual-band long-range simultaneous control with telemetry, achieving reliable end-to-end latency of 4 ms while maintaining a robust, high-quality signal link. The entire range of TD, ACCESS & ACCST D16 receivers is supported. The integrated TANDEM RF system supports ACCESS and ACCST D16 protocols.
In addition, the Tandem X18 series radios include a rear module bay in Lite version to offer more options for connecting external devices. FrSky welcomes working compatibility with third-party products with their own technology developed following FrSky's verified third-party compatibility testing program.