ICOM IC-R75 Manuale Utente

■

q

  ➥ Push momentarily to turn power ON.

      • Turn the optional DC power supply ON in advance.

  ➥ Push for 2 sec. to turn power OFF.

w

 HEADPHONE JACK [PHONES] (p. 8)

  Accepts headphones.

  •  When headphones are connected, the internal speaker 

or connected external speaker does not function.

e

 AF CONTROL [AF] (inner control)

   Varies the audio output level from the speaker.

r

  RF GAIN/SQUELCH CONTROL [RF/SQL]  

(outer control; pgs. 14, 30)

   Adjusts the squelch threshold level. The squelch 

removes noise output from the speaker (closed 
condition) when no signal is received.

  •  The squelch is particularly effective for FM. It is also 

available for other modes.

  •  The control can be set as the squelch plus RF gain 

controls or squelch control only (RF gain is fixed at 
maximum) in set mode.

t

  PASSBAND TUNING CONTROLS [TWIN PBT]  

(p. 15)

   Adjust the receiver’s “passband width” of the 455 

kHz and 9 kHz IF filters for the inner and outer 
controls, respectively.

  •  Set to the center positions when not in use.

y

  CLOCK MODE SWITCH [CLOCK] (p. 28)

   Toggles between frequency indication and clock 

indication when pushed.

u

[ANT/SET] (pgs. 16, 30)

  ➥  While in a frequency indication, enters set mode 

when pushed.

  ➥  While in a frequency indication, toggles between 

the antenna 1 and 2 connectors when pushed 
for 2 sec.

  ➥  While in the clock indication, enters time setting 

condition when pushed for 2 sec.

  ➥  While in a timer indication, toggles the timer ON 

or OFF when pushed.

i

   Changes the displayed frequency, selects set 

mode items, etc.

o

   Adjusts the tension of the tuning dial.

!0

 LOCK/SPEECH SWITCH [LOCK] (pgs. 13, 34)

  ➥  Toggles the frequency lock function ON and 

OFF.

  ➥  Announces the selected readout frequency 

when an optional UT-102 is installed and when 
pushed for 2 sec.

2

2

Function display (p. 5)

Speaker

q

w

e r

t

y

i o

!0

!1

!3

!4

!5

!6

!7

!8

!2

u