Icom IC-746PRO Instruction Manual

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Icom IC-746PRO Instruction Manual Manual pdf 16 page image

31 PANEL DESCRIPTION Front panel (continued)!8 MULTI-FUNCTION SWITCHES [F1]–[F5]Push to select the function indicated in the LCDdisplay above these switches. (p. 11)• Functions vary depending on the operating condition.Push to input a character for memory keyer pro-gramming or memory name. (pgs. 31, 66)!9 MENU SWITCH [MENU]Push to change the set of functions assigned to themulti-function switches.• Toggles between menu 1 (M1) and menu 2 (M2).@0 MODE SWITCHESSelects the desired mode. (p. 23)• Announces the selected mode when an optional UT-102is installed. (p. 89) Selects USB and LSB mode alternately. Selects SSB data mode (USB-D, LSB-D)when pushed for 1 sec. in SSB mode. Selects CW and RTTY mode alternately. Switches CW and CW-R (CW reverse)mode when pushed for 1 sec. in CWmode. Switches RTTY and RTTY-R (RTTY re-verse) mode when pushed for 1 sec. inRTTY mode. Selects AM and FM mode alternately. Selects AM/FM data mode (AM-D, FM-D)when pushed for 1 sec. AM/FM mode.@1 PREAMP/ATTENUATOR SWITCH [P.AMP/ATT](p. 48) Push momentarily to toggle between preamp-1and preamp-2.• “P.AMP1” activates for HF all bands.• “P.AMP2” activates high-gain preamp for 24 MHzband and above. Push for 1 sec. to toggle the attenuator functionON and OFF. What is the preamp?The preamp amplifies received signals in the front end cir-cuit to improve the S/N ratio and sensitivity. Select “P.AMP1”or “P.AMP2” when receiving weak signals. What is the attenuator?The attenuator prevents a desired signal from distortingwhen very strong signals are near the desired frequency, orwhen very strong electric fields, such as from a broadcast-ing station, are near your location.@2 NOISE BLANKER SWITCH [NB] (p. 51) Switches the noise blanker ON and OFF whenpushed. The noise blanker reduces pulse-typenoise such as that generated by automobile igni-tion systems. This function cannot be used forFM, or non-pulse-type noise.• “NB” appears while the noise blanker is activated. Enters the noise blanker level set mode whenpushed for 1 sec.AM/FMCW/RTTYSSBTYNR A/NOTCHTUNER ANTHF/VHF TRANSCEIVERNR NOTCHAFMIC GAIN RF PWR CW PITCHF 1 F 2 F 3 F 4 F 5XFCMP-WGENE 50 021 7 24 8 28 914 510 4 18 63.5 21.8 1 7 3144 ENTMP-RTX RXLOCKTWIN PBTM-CHRIT CLEAR∂TXRIT/∂TXTSSPLITPBTCF-INPA/B V/MMWM-CLKEY SPEED P.AMP/ATT NB VOX/BK-IN MONITOR CALL LOCK/SPCHRF/SQLi746PROMENU SSB CW/RTTY AM/FM FILTER#7#6#5#4#3#2#1#0!9 @0 @1!8 @2 @3 @4 @6@5 @7 @8 @9