38FT-891 Advance ManualEnhancing Transmit Signal QualityMic GainAdjust the microphone amplifier gain to match the microphone and your voice level.1. Press and hold in the [F] key for one secondto activate the Menu mode.2. Rotate the MULTI function knob to selectMenu Mode “16-07”, “16-08” or “16-09”.16-07: SSB MIC GAIN16-08: AM MIC GAIN16-09: FM MIC GAIN3. Press the MULTI function knob, and thenrotate it to adjust the microphone gain (0 -100).Default: 504. When the adjustment is completed, press the MULTI function knob to save the newsetting.5. Press the [F] key to exit the Menu mode and resume normal operation.Speech Processor (SSB Mode)The FT-891 Speech Processor is designed to increase “talk power” by increasing theaverage power output (via a sophisticated compression technique) and adjusting theaudio quality using the menu settings (“15-10 [P-EQ1 FREQ]”, “15-13 [P-EQ2 FREQ]”,“15-16 [P-EQ3 FREQ]”). The result is improved intelligibility when conditions are difficult.1. Press the [F] key repeatedly, to find the“FUNCTION-1” list screen.2. Rotate the MULTI function knob to select“PRC”.3. Press the MULTI function knob, and thenrotate it to adjust the compression level (1- 100).Default: 504. When the adjustment is completed, pressthe MULTI function knob.5. Press and hold the [F] key for one second to exit the “FUNCTION-1” list screen andresume normal operation.r To set the Speech Processor to “OFF”:1. Press the [F] key repeatedly, to find the “FUNCTION-1” list screen.2. Rotate the MULTI function knob to select “PRC”, then press the MULTI function knob.3. Press and hold the [F] key for one second to exit the “FUNCTION-2” list screenand resume normal operation.r The Speech Processor function may be assigned to the [A], [B] or [C] key. Referto “Changing the function assigned to the [A]/[B]/[C] keys” in the FT-891 OperatingManual.