Main Dial, - Icom IC-7700 Instruction Manual

MF5 (MULTI-FUNCTION 5 SWITCH)
➥ Activates and selects fast, mid-range
AGC
or slow AGC time constant when
MID
pushed. (p. 5-11)
• In FM mode, only "FAST" is available.
➥ Enters the AGC set mode when
pushed and held for 1 sec. (p. 5-11)
AGC time constant can be set between
0.1 to 8.0 sec.
turned OFF. When AGC is "OFF," the
S-meter does not function.
✔ What is the AGC?
The AGC controls receiver gain to produce a constant
audio output level, even when the received signal
strength varies dramatically. Select "FAST" for tuning and
then select "MID" or "SLOW" depending on the receiving
condition.
MF6 (MULTI-FUNCTION 6 SWITCH)
➥ Turns the speech compressor ON and
COMP
OFF
OFF in SSB mode. (p. 6-5)
WIDE
➥ Switches the narrow, middle or wide
compression when pushed and held
for 1 sec.
✔ What is the speech compressor?
The speech compressor compresses the transmitter
audio input to increase the average audio output level, to
increase talk power. This function is effective for long-dis-
tance communication or when propagation conditions are
poor.
➥ Turns the
1
1 / 4
and OFF in SSB data, CW, RTTY and
ON
PSK modes. (p. 3-6)
• 1 ⁄ function sets dial rotation to
4
mal speed for fine tuning.
➥ Switches between the tone encoder,
TONE
tone squelch function and no-tone op-
OFF
eration when pushed in FM mode.
(pgs. 4-33, 4-34)
➥ Enters the tone set mode when
pushed and held for 1 sec. in FM
mode. (pgs. 4-33, 4-34)
MF7 (MULTI-FUNCTION 7 SWITCH)
➥ Switches the voice squelch control
VSC
function ON and OFF; useful for scan-
OFF
ning. (p. 9-3)
(depends on mode)
⁄ -speed tuning function ON
4
1 ⁄ of nor-
4
#4 LCD FUNCTION SWITCHES
Push to select the function indicated in the LCD dis-
play above these switches.
• Functions vary depending on the operating condition.
#5 TRANSMIT INDICATOR [TX]
Lights red while transmitting.
#6 RECEIVE INDICATOR [RX]
, or
Lights green while receiving a signal and when the
squelch is open.
#7 LCD FUNCTION DISPLAY (p. 1-14)
Shows the operating frequency, function switch
menus, spectrum scope screen, memory list
screen, set mode settings, etc.
#8 SPLIT OPERATION INDICATOR [SPLIT]
Lights during split frequency operation.
#9 LOCK INDICATOR [LOCK] (p. 5-17)
Lights when the dial lock function is activated.
$0 TRANSMIT FREQUENCY CHECK SWITCH
[XFC] (p. 6-6)
Monitors the transmit frequency
quency offset)
quency operation.
• While pushing this switch, the transmit frequency can be
changed with the main dial, keypad, memo pad or
/
∫
√
• When the split lock function is turned ON, pushing [XFC]
cancels the dial lock function. (p. 6-7)
$1 MEMORY UP/DOWN SWITCHES
(p. 8-2)
Push to select the desired memory channel.
• Memory channels can be selected both in VFO and
memory modes.
$2 KEYPAD
➥ Pushing a key selects the operating band. (p. 3-4)
•
GENE
•
➥ Pushing the same key 2 or 3 times calls up other
stacked frequencies in the band. (p. 3-4)
• Icom's triple band stacking register memorizes 3 fre-
quencies in each band.
➥ After pushing
memory channel. Pushing
is necessary to end the entry. (pgs. 3-5,
√
8-2)
• e.g. to enter 14.195 MHz, push
10
4
1-7
PANEL DESCRIPTION
F-1
(including ∂TX fre-
when pushed and held during split fre-
switches.
selects the general coverage band.
, enters a frequency or
F-INP
ENT
F-INP
GENE 1.8 28
1 9
•
1
–
F-7
/
∫
√
or /
∫
ENT
F-INP
1.8
1
ENT
.
F-INP
14
5
ENT