Icom IC-R75 Instruction Manual - Page 8

2 PANEL DESCRIPTION ■ Front panel (continued) Function display (p. 5) COMMUNICATIONS RECEIVER SSB CW/RTTY FIL AM FM TS 1 2 3 ABC DEF 4 5 6 GHI JKL MNO 7 8 9 PRS TUV WXY . 0 QZ ENT PHONES POWER AF RF/SQL TWIN PBT ANT SET CLOCK P.AMP ATT NR ANF NB AGC V/M MW CLR SEL SCAN DN UP LOCK !9 @0 @1 @2 @3 @4 @6 @5 !9 P REAMP SWITCH [P.AMP] (p. 16) Push to toggle between preamp-1 and preamp-2 or turn the preamp OFF. @0 ATTENUATOR SWITCH [ATT] (p. 16) Push to toggle the 20 dB attenuator function ON and OFF. @1 NOISE REDUCTION SWITCH [NR] (p. 20) ➥ Toggles the optional noise reduction function ON and OFF when pushed. Functions in SSB, CW and RTTY modes. An optional UT-106 DSP unit is required. ➥ Enters noise reduction level set mode when pushed for 2 sec. An optional UT-106 DSP unit is required. @2 AUTOMATIC NOTCH FILTER SWITCH [ANF] (p. 20) Push to turn the optional automatic notch filter for receiving AM signals ON and OFF. An optional UT-106 DSP unit is required. @3 NOISE BLANKER SWITCH [NB] (p. 15) Toggles the noise blanker ON and OFF. The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. This function is not effective for FM, or non pulse-type noise. @4 A GC SWITCH [AGC] (p. 16) ➥ Toggles the AGC (Automatic Gain Control) time constant fast and slow when pushed. ➥ Toggles the AGC function ON and OFF when pushed for 2 sec. @5 SELECT SWITCH [SEL] (pgs. 24, 26) ➥ Toggles the select memory setting ON and OFF when pushed in memory mode. ➥ Toggles the memory name indication ON and OFF when pushed for 2 sec. in memory mode. @6 SCAN SWITCH [SCAN] (p. 25) ➥ Push momentarily to start/stop the programmed scan in VFO mode. ➥ Push momentarily to start/stop the memory scan in memory mode. ➥ Push for 2 sec. to start the priority watch in VFO mode. • Push [SCAN] again to cancel the priority watch.