The Kenwood TS-890S is the company's first model to support 4m bands, featuring four built-in roofing filters: 500Hz, 2.7kHz, 6kHz, and 15kHz. It boasts a 7-inch colour TFT display with a roofing frequency sampling band scope and a band scope auto-scroll mode, enhancing user experience. The radio provides a clean and robust 100W output (50W/70MHz) for top-class receive performance, a built-in high-speed automatic antenna tuner and a 32-bit floating-point DSP for RX/TX and band scope operations.

With a receiver offering a 110dB 3rd intermodulation dynamic range (3rd IMDR), a 114dB reciprocal mixing dynamic range (RMDR), and a 150dB blocking dynamic range (BDR), the TS-890S ensures exceptional performance. This radio provides precise and reliable operation and is equipped with a TCXO for high-frequency stability at ±0.1 ppm. The control panel layout is designed for intuitive handling, supporting features like CW Morse code decode/encode, FSK/PSK functions, and remote operation without a host PC through the KNS (KENWOOD Network Command System). Additionally, it offers recording functions with 1GB internal memory, allowing up to 9 hours of audio recording.