The compact Yaesu FT-840 has two direct digital synthesizers and rotary encoder that provide silky-smooth tuning. The excellent general coverage receiver tunes .1-30 MHz in 10 Hz steps. A 12 dB attenuator may be inserted for clear copy of very strong signals. The FT-840 uses a die-cast RF power amp with thermally switched fan to ensure full power output (up to 100 watts). The digitally synthesized local signals ensure clean, low-noise transmitter output on all HF amateur bands. Other features include: backlit 10 Hz LCDIF shift, reverse CW, dual VFOs, 100 memories, attenuator, noise blanker, meter, scan modes and speech processor. The rear panel features various I/O jacks. Only 9.5 x 3.7 x 7 inches.