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5.2.4.3   ACKNOWLEDGEMENT OF AN INDIVIDUAL INCOMING CALL  

The radio either automatically or manual send an acknowledgement to 
the requesting radio depend on setting, The USA will automatically send 
an acknowledgement to the requesting radio within 10 seconds of 
receiving the call.

  

5.2.5 

LAST CALL (RECALL THE MOST RECENT INCOMING CALL) 

 

This facility also is useful and is used frequently as routing individual call 

Press the DSC / Menu key to enter the DSC mode LAST CALL 
will be pointed, press 

CH

 key to display the detail information of 

the last call 

Select the working channel for individual call and press 

CH

 key, 

the radio summarizes the call details and ask for confirmation 
to send the call (send?).Press 

CH

 knob to send the call other 

operation as same as the section 5.6.1 

5.2.6 

SEND an INDIVIDUAL CALL USING THE CALL LOG 

The CALL LOG contains the contact details for the 20 most recent 
incoming calls, so you call any of them again quickly 

1

 

 

Press the DSC / Menu key to enter the DSC mode, select 
CALL LOG, press up/down key to scroll for previous call. 

2 Press 

the 

CH

 key to conform the choice then follow the as the 

ways to make the call in5.6.1 

(To save this log entry you BUDDY LIST, select SAVE, then press ENT 
key and enter a name the logged MMSID is automatically displayed.) 

 

 

5. 2.7 

POS REQUEST AND POP REPLY 

5. 2.71  POS REQUEST (REQUEST THE LL POSITION OF ABUDDY) 

The option enables you to request GPS position information from any 
vessel for which an MMSI number is known. 
1

 

Select the POS REQUEST on the DSC Menu, press the CH 
key to enter the buddy list (<MANUAL> AND PHONEBOOK) 
select the one for position information.  

The Call will be initiate and same as individual call procedures. 
See 5.6.1 

5.2.72 POP 

REPLY 

The position relay can to send your position to another radio 
with this feature. Your radio must have an operating GPS 
receiver connected to be used to send to the position. 
POS relay can manually send your position or do it automatic t 
which depending upon on your setting the set 
On the manual reply, operation procedures as follow: 

when you received POS request call, an alarm pi sounds LCD 
displays as follow: 

2

 

P

ress 

t

he 

CH

 key to transmit your own ships’ position and time 

information 

Press [CLR] to record the received information, then the screen 
goes back to default. 

5.3. 

Receiving a DSC Call 

When a DSC call is received, the radio automatically responds 
based on the type of call. The information displayed on the 
LCD varies depending upon the call type. See chart below. 

5.3.1 

Receiving Distress Call 

When a distress call is received, the radio automatically tunes 
to channel 16, and the Distress Alarm Tone sounds. The call 
date is stored in the distress. Log. Pressing any key disables 
the alarm. 

When position data is included within the signal, it is displayed 
in the Text Area of the LCD.  When no position data is included 
within the signal, the message "99

°

99.9999X, 999

°

99.9999Y" is displayed in the Text Area of the LCD. 

You must continue to monitor channel 16 as a coast station 
may require assistance in any rescue attempt 

 
 
 
 
 
 

5.3.2 

Receiving a Distress ACK Send from a coast station 

When a Distress Relay Call is received, the Base Station 
automatically tunes to Channel 16, and the Distress Alarm 
Tone sounds. Pressing any key disables the alarm. 
When position data is included within the signal, it is displayed 
in the Text Area of the LCD. The call date is stored in the 
distress log 

You must continue to monitor channel 16 as a coast station 
may require assistance in any rescue attempt 

 
 

DISTRESS 
ID0450078964
21’09.1011N 
120’20.0111E 

DISTRESS 
ID4050078964
SINKING 
12: 45UTC 

Summary of Contents for VHF255S-DSC

Page 1: ...lled and used in accordance with the instructions may cause harmful interference to radio communications and human body Never transmit before you make sure the antenna is properly located This device...

Page 2: ...ECEIVER DSC CALL 24 5 3 1 RECEIVER A DISTRESS CALL 24 5 3 2 RECEIVING A DISTRESS ACK FROM A COAST STATION 24 5 3 3 RECEIVER DISTRESS RELAY CALL 25 5 3 4 RECEIVING AN ALL SHIPS CALL 25 5 3 5 RECEIVING...

Page 3: ...th Japanese Industry Standard level 7 25 watts high output power allows you make contact with others in a long distance of marine communication and 1watt low power for short distance Separate 169butto...

Page 4: ...into the channel of priority DISTRESS This button is used to send a signal of distress in case of emergency See DSC Operation for details of sending the call This button is cover by a spring cover Th...

Page 5: ...MBOL MEANINGS HI LO Transmission power High HI 25W or Low LO 1W Indicates an incoming DSC call or blank to notify you of any unread call log messages TX Indicate that the radio is Transmitting RX Indi...

Page 6: ...ference caused by the speaker magnet in your radio during their operation Provides accessibility to the front panel controls Allows connection to a power supply and an antenna Has free space nearby fo...

Page 7: ...Insert the four fixing screws and fasten them with a Philip screw driver with attention not to screw too tightly 8 Mount the base station onto the bracket with notice of the matching of the protuberan...

Page 8: ...l 6 Press Hi Lo key to select high power or lower power 7 Press the PTT Push To Talk button on the handset to make the radio into transmission mode the TX indicator on LCD is displayed 8 Speak clearly...

Page 9: ...ls delete 1 Delete the channel from the MEM list at Normal mode Select the target channel with icon ON Press and hold the BAND SAVE key till the icon turn OFF The target channel will then be deleted o...

Page 10: ...like a telephone number to selectively call other vessels Refer to section 6 12 USER MMSI ENTRY 5 1 2 HOW CAN I OBTAIN A MMSI ASSIGNMENT Contact your dealer or techsolic WRANING This radio is designed...

Page 11: ...n 3 seconds until you see the distress call sent message on the screen the whole display screen to flash and beep loudly 5 If DISTRESS button is released before 3 seconds the initiation of distress ca...

Page 12: ...3 Then rotate the CH knob to select the working channel and press the CH knob to accept select Only in the case of a call to a ship it is permitted to enter a talk channel a call to a coast station t...

Page 13: ...5 6 1 5 2 72 POP REPLY The position relay can to send your position to another radio with this feature Your radio must have an operating GPS receiver connected to be used to send to the position POS r...

Page 14: ...LL 1 When an Individual call are received the Alarm Tone Sounds The radio automatically tunes to the channel designated in the DSC signal 2 The MMSI contained within the signal are displayed on the Te...

Page 15: ...S Date During Set Up operation TX and RX are disabled 6 3 Buddy List The Buddy List can store up to 20 entries with Name and MMSID User can add edit or delete the record from the list under this subme...

Page 16: ...ata is display on the LCD when there is no valid position information NO GPS appears 6 7 1 Manual Enter GPS Date If no GPS data is available the NO GPS icon appears and POS DATA REQ is displayed with...

Page 17: ...4 items that user can alter settings 6 8 1 CHANNEL NAME display and EDITING To set a channel name to ON or blank on the first line Maximum of 12 characters could be set for channel name a channel name...

Page 18: ...er your user MMSID first then you can access the DSC functions 1 Select DSC SETUP then USER MMSID and press the CH knob If an existing MMSID is stored the values appear 2 If the MMSID is blank a dashe...

Page 19: ...DIT or DELETE item 3 Select DELETE and press the CH knob will display DELETE GROUP menu arrow point the YES then press the CH knob to empty the group and return to the USER GROUP screen The LCD displa...

Page 20: ...CH knob to confirm and return to the menu manual 6 10 RESET This feature resets every setting to the factory defaults except USER MMSI and BUDDY LIST GROUP MMSID 1 Select RESET press CH key the radios...

Page 21: ...n Check the connection to the base station Check the volume control 2 No sound comes from the speaker Set VOL to a suitable level Set squelch to the threshold point 3 Transmitting is impossible or hig...

Page 22: ...50 161 950 D 27 127 350 161 950 D 28 157 400 162 000 D 28 157 400 162 000 D 60A 156 025 156 025 S 60 156 025 160 625 D 61A 156 075 156 075 S 61 156 075 160 675 D 62A 156 125 156 125 S 62 156 125 160 7...

Page 23: ...5B RX only 161 850 26 157 300 161 900 D 27 157 350 161 950 D 28 157 400 162 000 D CH FREQUENCY MHz TX RX MODE REMARK 28B RX only 162 000 60 156 025 160 625 D 61A 156 075 156 075 S 62A 156 125 156 125...

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