ICOM 301500 Manuale Utente

48

5

FUNCTIONS FOR RECEIVE

D FIlter passband width setting

q  Push 

 several times to select the desired 

mode.

w  Push and hold 

 for 1 sec. to enter filter set 

mode.

e  Rotate [M-CH] to select “FIL.”
r  Push 

 several times to select the desired 

IF filter.

t Rotate [DIAL] to set the desired passband width.

 • 

 

The passband width can be set within the range as 
shown in the table at right below.

 • 

 

Push and hold 

 for 1 sec. to return to the default 

value.

y Repeat steps r and t if desired.
u  Push and hold 

 for 1 sec. to exit the filter 

set mode.

 When the IF passband width is set to minimum by 
the  [TWIN PBT] controls (when one control is 
max. counterclockwise, and the other one is max. 
clockwise; p. 46), a sound may not come from the 
speaker depending on the IF filter passband width 
setting. This is not a transceiver’s malfunction. 

SSB

Wide

3000 Hz

50–500 Hz (50 Hz)/
600–3600 Hz (100 Hz)

Middle

2400 Hz

Narrow

1800 Hz

SSB Data/

CW

Wide

1200 Hz

50–500 Hz (50 Hz)/
600–3600 Hz (100 Hz)

Middle

500 Hz

Narrow

250 Hz

RTTY

Wide

2400 Hz

50–500 Hz (50 Hz)/
600–2700 Hz (100 Hz)

Middle

500 Hz

Narrow

250 Hz

AM/

AM Data

Wide

8000 Hz

200–8000 Hz (200 Hz)

Middle

6000 Hz

Narrow

3000 Hz

D IF fIlter shape (SSB/CW only)

The type of DSP filter shape for SSB and CW can be 
selected independently from soft and sharp.

q  Push 

 several times to select SSB or CW 

mode.

w  Push and hold 

 for 1 sec. to enter filter set 

mode.

e Rotate [M-CH] to select “SHAPE.”
r  Push 

 several times to select the desired 

IF filter from Wide, Middle or Narrow.

t  Rotate [DIAL] to select the desired filter shape, 

either soft or sharp

 • 

 

Push and hold 

 for 1 sec. to return to the default 

value.

y  Push and hold 

 for 1 sec. to exit the filter 

set mode.

“Sharp”

“Soft”