ICOM i7700 Manuale Utente

1-7

➥

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.

✔

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.

➥

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.

✔

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)

➥

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

(p. 8-2)
Push to select the desired memory channel.

• Memory channels can be selected both in VFO and

memory modes.

$2

➥

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-INPENT

14

5

28

9

1.8

1

GENE

•

10

4

1.8

1

F-INPENT

√

∫

F-INP

ENT

F-INP

ENT

GENE

•

√

∫

√

∫