Sony FS-2570 User Manual

1  OPERATIONAL OVERVIEW 

1. 

Press the [7/ ] key to alternately disable or enable the loudspeaker and the alarm 
generated for routine messages. SOUND: ON or SOUND: OFF appears with each 
press. 

2.  To adjust loudspeaker volume do the following: 

a) Press the [1/RT 2182] key to show the radiotelephone screen. 
b) Rotate the [ENTER] knob to choose VOL at the bottom of the screen and then push the 

[ENTER] knob. 

c) Rotate the [ENTER] knob to adjust volume and then push the [ENTER] knob. 

     

VOL

"OFF" shown when loudspeaker is off.

 

 
 

You can scan frequencies when using the DSC mode. For how to set frequencies, see 
paragraph 7.4. Radiotelephone and telex are inoperative while scanning. However, in 
case of the FS-2570, those modes may be used during scanning when the optional 
internal watch keeping receiver is installed. 
 
1.  Press the [6/SCAN] key to show the DSC standby screen. 
2.  Press the [6/SCAN] key to start/stop scanning.   
 
 

The automatic acknowledge feature of the DSC/watch receiver automatically transmits the 
acknowledge back (ACK BQ) signal to the sending station when an individual, position or 
polling call is received. (For position and polling calls, respective item on the AUTO ACK 
menu must be turned on to enable automatic acknowledge.) Automatic acknowledge can 
be turned on or off at the DSC standby screen by the [5/ ACK/SQ] key. The message ACK: 
AUTO or ACK: MANUAL appears at the bottom of the DSC standby screen with each 
press of the key.   
 
Note 1: To give priority to own ship’s communications while own ship is communicating, 

show ACK: MANUAL by the above procedure. 

Note 2: Automatic acknowledge is not possible under the following conditions:   

Priority: 

 

    Distress, Urgency or Safety 

Com Type: Morse, Fax, Data, No Info 
Com Freq: No Info 
Off Hook 

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