Icom IC-7700 Instruction Manual - Page 16

1 PANEL DESCRIPTION ■ Front panel (continued) #3 #4 #5 #6 #7 #8 #9 $0 $1 $2 NSCEIVER 7700 MONITOR D DELAY NB NB RF DRIVE TX RX SPLIT LOCK 1.8 1 10 4 21 7 GENE 3.5 2 14 5 24 8 50 0 MP-W MW 7 3 18 6 28 9 F-INP ENT MP-R V/M XFC A/B A=B TS F-1 F-2 SSB CW COMP MONI GAIN F-3 RTTY/PSK F-4 AM/FM F-5 DATA VOX GAIN ANTI VOX CONTRAST F-6 M.SCOPE F-7 EXIT/SET BRIGHT REC PLAY VOICE MEMORY AUTO TUNE LOCK FILTER PBT-CLR TWIN-PBT DIGI-SEL DIGI-SEL NOTCH APF/TPF NOTCH RIT/∂TX RIT ∂TX CLEAR SPEECH CW PITCH SPLIT #3 MULTI-FUNCTION SWITCHES Push to select the functions indicated in the LCD display to the right of these switches. • Functions vary depending on the operating condition. MF1 (MULTI-FUNCTION 1 SWITCH) ANT ➥ Selects the antenna connector from 1 ANT1, ANT2, ANT3 and ANT4 when pushed. (p. 10-2) ➥ Displays antenna selection memory when pushed and held for 1 sec. • When the receive antenna is activated, the antenna connected to [ANT4] is used for receive only. When a transverter is in use, this [ANT] does not function and 'TRV' appears. MF2 (MULTI-FUNCTION 2 SWITCH) METER ➥ Selects RF power (Po), SWR, ALC, Po COMP, VD or ID metering during trans- mit. (p. 3-10) ➥ Switches the multi-function digital meter ON and OFF when pushed and held for 1 sec. (p. 3-10) MF3 (MULTI-FUNCTION 3 SWITCH) P.AMP ➥ Selects one of 2 receive RF preamps 1 or bypasses them. (p. 5-9) • "P. AMP1" activates 10 dB preamp. • "P. AMP2" activates 16 dB high-gain pre- amp. ➥ Turns the preamp function OFF when pushed and held for 1 sec. (p. 5-9) ✔ What is the preamp? The preamp amplifies signals in the receiver front end to improve S/N ratio and sensitivity. Select "P. AMP1" or "P. AMP2" when receiving weak signals. MF4 (MULTI-FUNCTION 4 SWITCH) ➥ Selects 6 dB, 12 dB or 18 dB attenua- ATT OFF tor when pushed. (p. 5-9) ➥ Turns the attenuator function OFF when pushed and held for 1 sec. (p. 5-9) ✔ What is the attenuator? The attenuator prevents a desired signal from being distorted when very strong signals are near the desired frequency, or when very strong electromagnetic fields, such as from a broadcasting station, are near your location. 1-6