ICOM 339300 Manuale Utente

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PANEL DESCRIPTION

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e TX/RX  LED

 Lights green when the squelch opens, or a signal 

 

➥

is received.
 Lights red during transmit.

 

➥

r MEMORY BANK CONTROL [BANK]
  ❍  When the both PBT and RIT LEDs are OFF
   

 Rotate to select a Memory bank.

  ❍ When the PBT LED (y) rights green
   (Mode: 

   

 Rotate to adjust the receiver’s IF fi lter passband 
width using the DSP circuit.

  ❍ When the RIT LED (u) rights orange
   

Disable this control.

t M-CH CONTROL/CLEAR KEY [M-CH]/[CLR]
   Push to select the action of the [M-CH/BANK]

 con-

trols as the Memory/Bank selection, PBT control or 
RIT control.

  ❍ When the both RIT and PBT LEDs are OFF
   

Rotate to select a Memory channel.

  ❍ When the RIT LED rights orange
   

➥ Rotate to adjust the RIT frequency shift.

    • 

 

The frequency shift range is ±9.99 kHz in 10 Hz 
steps. The control tunes in 1 Hz steps when the 
operating frequency readout is set to the 1 Hz step 
readout. 

   

➥  Hold down for 1 second to clear the RIT shift 

frequency. 

✔ What is the RIT function?

The RIT (Receiver Incremental Tuning) shifts the re-
ceive frequency without shifting the transmit frequency.
This is useful for fi ne tuning stations calling you off-fre-
quency or when you prefer to listen to slightly different-
sounding voice characteristics, and so on.

  ❍ When the PBT LED rights green
   (Mode: 

   

➥  Rotate to adjust the receiver’s IF fi lter pass-

band width using the DSP circuit.

   

➥  Hold down for 1 second to reset the PBT set-

tings.

    • 

 

The PBT is adjustable in 50 Hz steps in the SSB/
CW/RTTY modes, and 200 Hz in the AM mode. In 
this time, the shift value changes in 25 Hz steps in 
the SSB/CW/RTTY modes, and 100 Hz in the AM 
mode.

    • 

 

The PBT controls function as an IF shift control.

✔ What is the PBT control?

The PBT function electronically modifi es the IF pass-
band width to reject interference. This transceiver uses 
the DSP circuit for the PBT function.

y PBT  LED
   Lights green when the [M-CH/BANK]

 controls act 

as the PBT control.

 • 

 

Push the [M-CH]

 switch to select as the PBT control.

u RIT  LED

 Lights orange when the RIT function turns ON.

 

➥

 Lights orange when the [M-CH/BANK]

 

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 controls 

act as the RIT control.

   • 

 

Push the [M-CH]

 switch to select as the RIT con-

trol.

   • 

 

The RIT control is the inner control. The outer control 
is disabled.

i RIT  KEY 

RIT

 (p. 69)

 Push to turn the RIT function ON or OFF.

 

➥

   • 

 

Use the [M-CH]

 control to vary the RIT frequency.

 

➥  Hold down for 1 second to add the shift frequency 

of the RIT function to or subtract it from the dis-
played frequency.

Front panel (Controller) (Continued)

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