ICOM 301500 Manuale Utente

2

r ANF/METER  KEY 

 (p. 51)

 

±

 

Push to turn the Automatic Notch Filter function 
ON or OFF in SSB and AM modes.

  • 

“

” appears on the display.

 

±  Push and hold for 1 sec. to toggle the meter 

function; (pgs. 30, 60)

  PO 

« SWR « ALC

  • 

PO  : indicates the relative RF output power.

  • 

SWR : indicates the SWR over the transmission line.

  • 

ALC  : Indicates ALC level.

 What is the Automatic Notch Filter?
The Automatic Notch Filter is a narrow DSP filter that 
automatically identifies and attenuates beat tones, tun-
ing signals, CW, etc., even if they are moving and re-
moves them from the receiver passband while pre-
serving the desired signal’s frequency response.

t KEYPAD 
 

±

V/M 

, 

, 

, 

, 

, 

, 

, 

, 

, 

 and 

 keys are available. 

(p. 5)

 

±

 for 1 sec., 

push a key on the keypad to select the operating 
band. (p. 24)

 

 

• The band stacking register is available.

  • 

 selects the general coverage band.

 

±

, push a key on the key-

pad to enter a numeric frequency. After entering, 
push 

. (p. 25)

  • 

 

e.g. To enter 14.195 MHz;

 

 

   Push 

, 

, 

, 

, 

, 

, 

 

and 

.

y RIT CONTROL INDICATOR (pgs. 44, 61)
   Lights red when [M-CH] control (

u) acts as the 

RIT control.

u M-CH/RIT CONTROL [M-CH] (inner control)
 

±  While in the set mode/quick set mode, rotate to 

select the set mode item. (p. 70)

 

±  This control can act as the memory channel 

control or RIT control.

  • 

 

The RIT function should be turned ON in advance to 
activate this control as RIT control. (p. 44)

 

 

  - “

” appears when the RIT function is turned ON.

  • 

 

The RIT control indicator (

y) lights red when this 

control is activated as the RIT control.

    During [M-CH] acts as the M-CH control:
    Rotate to select a memory channel (p. 61).

OFF

Channel decreases

Channel increases

    During [M-CH] acts as RIT control:
     Rotate to shift the receive frequency (p. 44).

  • 

 

Rotate the control clockwise to incerase the fre-
quency, or rotate the control counterclockwise to de-
crease the frequency.

  • 

 

The shift frequency range is ±9.999 kHz in 1 Hz 
steps (or ±9.99 kHz in 10 Hz steps).

Lights red

Frequency decreases

Frequency increases

 What is the RIT function?
The RIT (Receiver Incremental Tuning) shifts the re-
ceive frequency without shifting the transmit frequency.
This is useful for fine tuning for stations calling you 
off-frequency or when you prefer to listen to slightly 
different sounding voice characteristics, etc.

  • About the [M-CH] control activation:

RIT control indicator 

(

y on p. 2)

Lights

OFF

  

indicator

(

!6 on p. 8) 

Appears

Acts as the 
RIT control Acts as the

 mem-

ory channel control

Disappears

N/A

i  MANUAL NOTCH FILTER CONTROL [MNF] 

(outer control; p. 51)

   Rotate to adjust the notch filter frequency to reject 

an interfering signal while the manual notch func-
tion is ON.

High frequency

Low frequency

 What is the Manual Notch Filter?
The Manual Notch Filter is an adjustable narrow 
DSP filter that removes tones from CW, SSB or AM 
signals while preserving the desired signal’s fre-
quency response.

o  M-CH/RIT•SET KEY 

 

± Push to set the [M-CH] control to RIT control.

  • 

The RIT function should be turned ON in advance. (p. 44)

  • 

 

The RIT control indicator (

y) lights red when the 

[M-CH] control functions as the RIT control.

 

±  Push and hold for 1 sec. to enter the quick set 

mode. (p. 70)

 

±  During quick set mode, push and hold for 1 sec. 

to enter the set mode (p. 70)

 

±  During quick/set mode, push to return to normal 

operation. (p. 70)

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PANEL DESCRIPTION