Kenwood Original TS-590S HF/50 MHz Base Amateur Radio Transceiver w/ DSP, 100 Watts Superb RX Performance: Excellent Dynamic Range Even with Powerful Off-frequency Interference  Powerful 500Hz / 2.7kHz roofing filter DDS offers superb C/N (Carrier to Noise ratio) characteristics, significantly cutting noise generated by adjacent unwanted signals Wide Range of Features Thanks to 32-bit Floating-point DSP  Advanced AGC with digital signal processing from the IF stage onward Stable operation guaranteed. Designed for high reliability.  100W heavy-duty design User-friendly menus, outstanding operating ease  Large display with 2-color LED backlight  USB connectivity for PC control