On CW, the DSP BPF takes the form of an Audio Peaking Filter, with minimum bandwidths of 400 Hz, 200 Hz, 100 Hz, and even 25 Hz available for EME (Moonbounce) or other very-weak-signal work. In voice modes, the LPF may be adjusted to begin cutting off frequencies between 1500~3000 Hz, while the HPF cutoff frequency may be adjusted over the range 100~1600 Hz.

Yaesu's renowned DSP circuitry is led by the ultra-sharp Bandpass Filter feature, which utilizes the combined effects of independently-adjustable audio HPF (High-Pass-Filter) and LPF (Low-Pass-Filter) elements to provide very steep skirt selectivity and reduction of noise. And long-term reliability is ensured by the rugged construction, featuring an aluminum diecast chassis which doubles as the power amplifiers’ heat sink.ĮXCEPTIONAL INTERFERENCE REDUCTION FROM DSP FILTER Ready for action on SSB, CW, AM, FM, and digital modes, the FT-847's ultra-compact size makes it ideal for serious base stations use, and well as a variety of portable and mobile applications, including Field Day, DX-peditions, VHF/UHF 'Rove' operation, and RV installations. Yaesu's engineers have achieved an engineering breakthrough that was only a dream just a few years ago: a full-power transceiver covering HF, 50 MHz, 144 MHz, and 430 MHz bands in a package about 2/3 the size of an average briefcase. Utilizing the latest computer-aided design techniques and thousand of 'chip' components.

The FT-847 Earth Station: A masterpiece of high-tech design and packaging know-how!

Yaesu ft847 no power on sideband