Icom IC-7700 User Manual
Page 17
1-7
MF5 (MULTI-FUNCTION 5 SWITCH)
➥
Activates and selects fast, mid-range
or slow AGC time constant when
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.
(depends on mode)
, or
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
OFF in SSB mode. (p. 6-5)
➥
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
⁄
4
-speed tuning function ON
and OFF in SSB data, CW, RTTY and
PSK modes. (p. 3-6)
•
1
⁄
4
function sets dial rotation to
1
⁄
4
of nor-
mal speed for fine tuning.
➥
Switches between the tone encoder,
tone squelch function and no-tone op-
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
function ON and OFF; useful for scan-
ning. (p. 9-3)
#4
LCD FUNCTION SWITCHES [F-1]–[F-7]
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]
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
(including
∂
TX fre-
quency offset)
when pushed and held during split fre-
quency operation.
• While pushing this switch, the transmit frequency can be
changed with the main dial, keypad, memo pad or
/ switches.
• 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)
•
selects the general coverage band.
➥
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
, enters a frequency or
memory channel. Pushing
or
/
is necessary to end the entry. (pgs. 3-5,
8-2)
• e.g. to enter 14.195 MHz, push
.
F-INP
ENT
14
5
28
9
1.8
1
GENE
•
10
4
1.8
1
F-INP
ENT
√
∫
F-INP
ENT
F-INP
ENT
GENE
•
√
∫
√
∫
VSC
OFF
TONE
OFF
1 / 4
ON
COMP
OFF
WIDE
AGC
MID
1
PANEL DESCRIPTION