What's more, the SELECT knob allows "channelized" tuning in minimum steps of 1 kHz on SSB/CW, or 5 kHz on FM, for quick and easy tuning around the band. All important keys are strategically placed around the front panel, for quick access. ·EASY-TO-USE "SCROLLING FRONT PANEL" KEYS : The compactness of the FT-80C is made possible by the easy-to-use "multi-function" keys, which allow adjustment of a number of transceiver operating functions during operation. Pressing the [FUNC] key allows selection of the operating function row, using the Selector knob, and you may then press the [A], [B], or [C] key, as needed, to change the Multi Function Keys A key B key AB A=B MFa (VFO A/B /Selection) (Equalize VFOs A/B) MFb MFc MFd MFe* MFe MFf MFg MFh MFi MFj MFk MFl MFm MFn MFo MFp MFq (Write to Memory) (Quick Memory Store) (Repeater On/Off) (CTCSS/DCS On/Off) (Split Tone Encode) (ARTSTM On/Off) (Scan Start) (Spectrum Scope) (Meter Mode) (CW Spot) (ATU/ATAS On/Off) (Noise Blanker On/Off) (RX Preamp On/Off) (RX Normal Fltr. ) (Keyer Mem. 1) (DSP Noise Fltr. ) (SQL Disable) For superior interference rejection and transmitter "talk power," the FT-80C's DSP circuitry enhances both sides of the communications circuit. The FT-80C's DSP Unit features a 24-bit high-tech D/A chip for signal processing. BANDPASS FILTER : Separate DSP Bandpass Filters for Voice and CW augment the analog filters for enhanced interference rejection. For Voice modes, you get 16 High-Pass Filter cutoff frequency selections, and 32 Low-Pass Filter selections, for a total of 512 combinations. And for CW, you may choose bandwidths of 240 Hz, 120 Hz, or a razor-sharp 60 Hz. · DSP AUTO-NOTCH FILTER : To reduce interference caused by annoying carriers within the audio passband, the DSP Auto-Notch provides a significant reduction in the interference level. If multiple carriers are present, the DSP will detect and notch all the carriers present...