SEA 7157 OPERATOR S MANUAL 25W VHF/DSC RADIOTELEPHONE

Transcription

1 SEA 7157 OPERATOR S MANUAL 25W VHF/DSC RADIOTELEPHONE Software Version: Ver , Feb 1999

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3 TABLE OF CONTENTS GENERAL OPERATIONS...1 Technical Specifications...1 General Information...2 LCD Display Characters...3 Front Panel Controls...3 Basic Operation...4 Turning The Radio ON...5 Selecting A Channel List...5 Selecting A Channel...6 Adjusting The Squelch...6 Channel 16 Key...7 Operating The Transmitter...7 ADVANCED RADIO OPERATIONS...8 Selecting The Radio Menu...8 Changing The Transmit Power Level...8 LCD Contrast Adjustment...9 Dimming The Backlighting...9 Receiver Sensitivity...9 Changing The Priority Channel...9 Assigning MEM Channels For Scanning...10 Dual Watch Scan...10 Search Scan...11 Memory Scan...11 Scan Options...12 Reviewing Memory Channels...12 Adjusting The Scan Hang Time...13 Clearing The Radio Memory...13 Changing The Beep...13 Naming A Channel...14 Checking The Software Version...14 DSC OPERATIONS...15 DSC Distress Calling...15 Selecting The DSC Menu...16 Routine Individual DSC Calls...17 DSC Calls Using Alternate Calling Channel...17 DSC Distress Relay Calls...18 All Ships DSC Calls...18 Placing A Telephone Call With DSC...19 Receiving A DSC Call...19 Reviewing The DSC Call Logs...20

4 TABLE OF CONTENTS GMDSS CLASS A CALLS...21 Details Of A Class A Call...21 Distress Call...24 All Ships Calls...25 Geographical Area Calls...26 Individual / Group Calls...27 Phone Calls...28 PROGRAMMING DSC OPTIONS...29 DSC Programming...29 Setting The Date & Time...29 Programming The DSC ID (MMSI)...30 Programming The Navigation Interface...30 Programming Options...31 Using Test And Diagnostic Utilities...32 Programming The DSC Directory...32 Programming The Telephone Directory...33 Inputting Position Data...34 FREQUENCY LISTINGS...35 A Channel List...35 Amended International List...36 International Channel List...37 Weather Channel List...38 REAR PANEL...39 Rear Panel Connections...39 GLOSSARY...41

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6 DIMENSIONS: TECHNICAL SPECIFICATIONS 3.9 H x 10.5 W x 10.9 D 99mm H x 265mm W x 278mm D WEIGHT: 7.75 Lbs. 3.5 Kgs. ELECTRICAL: 1 GENERAL OPERATIONS Type Acceptance FCC Parts 80, 15 GMDSS (Para ) EIA RS-204C, RS-152B FCC Identifier BZ6SEA7157 Frequency Range (TX) MHz (RX) MHz Operating Temperature -30 degrees to +60 degrees C Frequency Stability ± 5 ppm Emission 16K0G3E, 13K5G2B Primary Voltage 12 or 24 VDC +30%, -10% Floating Chassis Current Drain 12 Volts Receive Standby 0.5 Amp Receive Full Audio 1.0 Amps Max TX: (25W) 4.5 Amps (1W) 1.0 Amp 24 Volts Receive Standby 0.3 Amp Receive Full Audio 0.5 Amps Max TX: (25W) 2.35 Amps (1W) 0.80 Amp Output Impedance 50 ohms Transmitter Output Power 25W, 1W Frequency Deviation 5 KHz maximum peak Receiver Sensitivity 0.3 µv for 12 db SINAD Audio Output Channel 70 Receiver Sensitivity DSC Facility 4 10% distortion into external 4 ohm load. 2 W internal 1 µv for 20 db SINAD 1 µv for 10-2 B.E.R.

7 GENERAL OPERATIONS CAUTION! GENERAL INFORMATION Do not attempt to transmit until the radiotelephone has warmed up for at least 30 seconds. Transmitting before the 30 second warm up period may cause a violation of the Federal Communications Commission regulations. PROPAGATION Very High Frequencies (VHF) in the range of 30 MHz to 300 MHz may travel far beyond the horizon under ideal conditions. For reliable communications, VHF transmissions should be limited to no more than 30 miles. INSTALLATION (RF grounding & DC connections) The SEA 7157 may be configured to operate from either 12 or 24 volts DC (direct current). Check the rear panel of the radio to determine the proper operating voltage required. A direct connection to the power source is recommended. Proper wire size must be used between the radio and power source to prevent the DC voltage at the radio from dropping below 10.8 or 21.6 volts during transmit conditions. Should this occur, the radio may produce distorted transmissions. Connect the RED positive (+) lead from the radio to the positive supply terminal. The BLACK negative (-) power lead should connect to the negative supply terminal. A #10 ground stud is provided for connecting the radio chassis to the ship s earth connection with a copper strap. The SEA 7157 is equipped with two UHF type RF connectors for the installation of two independent antennas. One antenna allows constant monitoring of the DSC channel while the other antenna labeled ANTENNA 50 OHMS is used for normal radio operations. The nominal impedance of each antenna is 50Ω which requires high quality RG-213/U or equivalent coax. It is recommended that an authorized SEA dealer perform the installation of your VHF equipment to assure proper operation. For complete installation instructions, refer to the SEA 7157 Installation Manual (OPR-7157-INST) supplied with the radio. RADIO PROTECTION The chassis of the SEA 7157 is not connected to either supply rail. This allows a direct connection to the ship s earth connection for voltage and RF interference protection. In the event that the input voltage is reversed, the line fuse (7.5 amp for 12 volt operation or 5 amp for 24 volt operation) will blow. It is also likely that the internal reverse polarity protection diode CR20 will be damaged in order to protect the remaining circuitry. Overvoltage to the radio will cause similar results. If this should occur and a replacement fuse also blows, an authorized SEA dealer should be contacted for proper service repairs. 2

8 LCD DISPLAY CHARACTERS GENERAL OPERATIONS TX 25W 1W DX LOC PRI SQL INT WX A The radio is in TRANSMIT. Indicates the radio will transmit using 25 watts of output power. Indicates the radio will transmit using 1 watt of output power. The radio is set for maximum receive sensitivity. The radio is set for local receive sensitivity. Displayed channel is the priority channel. Changes to bold font when adjusting the SQUELCH threshold. Indicates channel list is enabled. Indicates International channel list is enabled. Indicates Weather channel list is enabled. Indicates the displayed channel is simplex. FRONT PANEL CONTROLS DISTRESS DSC RADIO SQL LIST BKSP ENT UP DN Toggles channel selection between priority channel and CH 16. Allows entry of channel selection, alphanumeric channel information and menu selections. Initiates an Emergency DSC call. Selects DSC operations. Toggles between radio menu selections and normal operations. Aborts DSC operations. Allows quick access to squelch settings for normal operations. Selects print feature in other modes. Selects, INT or WX channel list. Also serves as a backspace key when used for alphanumeric entry or selects previous menu. Selects displayed function or completes keyed entry. Increases squelch, channel, alphanumeric and contrast settings. Also scrolls through DSC memory logs. Decreases squelch, channel, alphanumeric and contrast settings. Also scrolls through DSC memory logs. 3

9 GENERAL OPERATIONS SEA 7157 VHF / DSC RADIOTELEPHONE 1 SP 2 A B C 3 D E F UP A UNIT OF DATAMARINE Ver FEB 1999 C. SEA Inc., 1999 DISTRESS DSC RADIO SQL 16 4 G H I 5 J K L 6 M N O 7 P R S 8 T U V 9 W X Y LIST BKSP 0 Q Z ENT DN BASIC OPERATION To turn the radio on, rotate the volume control clockwise until a click is heard. Rotating the volume control clockwise after the click is heard will increase the volume level. Rotate the volume control fully counter clockwise to turn the radio off. Press the SQL key followed by the UP or DN key to adjust the squelch threshold. Press the RADIO or ENT key to stop squelch adjustment. Enter the desired channel number in one, two or three digit form, followed by the ENT key. e.g. 2 A B C 6 M N O ENT A UNIT OF DATAMARINE Ver FEB 1999 C. SEA Inc., : N W 25W PRI 16DX PRESS UP/DOWN SQL TO ADJT SQL 2: N W 25W 26DX PUBLIC CORR SQL Your SEA 7157 is now set to transmit and receive on the selected channel. For instructions on using additional radio functions, see the table of contents for the page number corresponding to the specific function. Illustrations in this manual may differ from your own depending on enabled programming features, selected channel list and differences in display fonts. 4

10 TURNING THE RADIO ON GENERAL OPERATIONS Rotate the volume control clockwise until a click is heard. A checkerboard display will be shown for a short period followed by the software version. The radio will be set to the last selected channel and squelch setting saved in memory. Rotating the volume control clockwise beyond the click will increase the volume level. When the radio is turned off, all scan routines are canceled. The current channel, channel list, and squelch setting will be recalled the next time power is applied. A UNIT OF DATAMARINE Ver FEB 1999 C. SEA Inc., 1999 Software version number and date 2: N W 25W 26DX PUBLIC CORR SQL Last used channel is recalled at powerup SELECTING A CHANNEL LIST LIST BKSP Pressing the key will cycle the radio through the three available channel lists. The channel list contains channel settings unique to the United States. When selected, the last used channel will be recalled. LIST BKSP Pressing the key while in the list will cycle the radio to the INT (International) channel list. The last used INT channel will be recalled. LIST BKSP Pressing the key while in the INT list will cycle the radio to the last WX (Weather) channel used from the WX channel list. Ten receive only weather channels are available for receiving current weather conditions in the local area. 2: N W 25W 26DX PUBLIC CORR SQL channel list 2: N W 6DX INT 25W INTERSHIP SQL International list 2: N W 1DX WX WEATHER SQL Weather channel list 5

11 GENERAL OPERATIONS SELECTING A CHANNEL Select the channel list containing the required channel with the LIST key. BKSP The channel may be selected by entering the channel number directly with the number keys followed by the ENT key. Using the UP DN and keys will allow the next or previous channel in the list to be accessed. When a simplex channel is needed, enter the closest channel number next to the desired channel and press the up or down key. e.g. To select CH 1A from the list, press the following keys: LIST BKSP repeatedly until the list appears. 1 SP ENT for CH 1. UP key to access CH 1A. 2: N W 25W 26DX PUBLIC CORR SQL Select the proper channel list 2: N W 1DX 25W SQL CH 1 2: N W 1DX 25W A PORT OPERS SQL Use the UP key to access CH 1A ADJTING THE SQUELCH The squelch prevents unwanted noise from getting through to the speaker. The higher the squelch setting, the less chance of noise getting through. DN Press the SQL key followed by the key until noise is heard through the speaker. Increase the number of squelch bars on the display by pressing the key until the UP noise stops. This is the ideal setting for the squelch threshold. Pressing either the RADIO or ENT key will stop squelch adjustment. In the event that noise occasionally opens the squelch, increase the number of squelch bars on the display by one or two. Adjusting the squelch threshold too high may cause desired signals to be missed. 2: N W 25W 26DX PUBLIC CORR SQL 2: N W 25W 26DX PRESS UP/DOWN SQL TO ADJT SQL Low squelch setting 2: N W 25W 26DX PRESS UP/DOWN SQL TO ADJT SQL Ideal squelch setting 6

12 CHANNEL 16 KEY GENERAL OPERATIONS Channel 16 is used as a calling channel and as an international emergency channel. Channel 16 should be monitored when the radio is not being used for other communications. 2: N W 25W PRI 16DX CALL DISTRS SQL Do not use this channel for ordinary communications. Pressing the 16 key will set the radio to full output power and abort all other functions. Pressing the key a second time will switch the radio to the programmed priority channel. When channel 16 is programmed to be the priority channel (factory default), switching between channel 16 and the priority channel will produce no noticeable change. OPERATING THE TRANSMITTER Keying the microphone push-to-talk button will switch the transmitter circuits on, indicated by the TX indicator appearing on the display. Speak in a normal voice with your lips about one eighth of an inch away from the microphone. Do not shout. Shouting reduces intelligibility. Instant recall of CH 16 and Priority channel 2: N W 25W 26TX PUBLIC CORR SQL Display showing transmit condition If regulations prohibit 25 watts of power on a given channel, the power level cannot be changed. No power level selection is allowed on receive only channels (e.g. WX channels). channels 13, 67, and 77 can be operated at full power by pressing the UP key during transmission. Releasing the key will return the radio to 1 watt operation. A time out timer is provided to prevent continuous transmissions for periods greater than 5 minutes. In the event that the radio will be needed to transmit for periods longer than 5 minutes, it will be necessary to release the PTT briefly before the 5 minute timer expires. 7

13 ADVANCED RADIO OPERATIONS SELECTING THE RADIO MENU Several advanced radio options are accessed by pressing the RADIO key. The most commonly used functions will be displayed in the first menu. The second menu is accessed by pressing 1 SP. Pressing the RADIO key at any time will abort the menu selection and the radio will return to normal operations. 2: N W 25W PRI 16DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Primary Radio menu selections 2: N W 25W PRI 16DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER Secondary Radio menu selections CHANGING THE TRANSMIT POWER LEVEL The transmit power level may be changed between 1 and 25 watts. The display will show the current setting while the menu selection shows what the power level will become. e.g. To change between high (25W) and low (1W) power levels: Press RADIO 4 G H I to toggle the power level. If regulations prohibit 25 watts of power on a given channel, the power level cannot be changed. No power level selection is allowed on receive only channels (e.g. WX channels). A channels 13, 67, and 77 may be operated at full power by pressing the key during transmission. Releasing the UP key will return the radio to 1 watt operation. When communicating short distances, it is recommended that the 1 watt level be used to help prevent interference with other stations. 2: N W 25W PRI 16DX CALL DISTRS SQL Channel 16 at 25 watt power setting 2: N W 25W PRI 16DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Changing CH 16 from 25W to 1W 2: N W 1W PRI 16DX CALL DISTRS SQL Channel 16 at 1 watt power setting 2: N W 25W 13TX BRG TO BRG SQL Channel 13 at 25 watts while UP key is pressed 8

14 To change the contrast level press RADIO followed by or DN. The keys may be UP held or pressed repeatedly. Pressing RADIO will exit the contrast adjustment. ADVANCED RADIO OPERATIONS LCD CONTRAST ADJTMENT The display s contrast setting may need to be adjusted to compensate for differences in temperature and viewing angle. DIMMING THE BACKLIGHTING The display and keypad backlighting may be changed by pressing the RADIO 5 J K L keys. Repeatedly pressing the 5 J K L key will cycle the backlighting through the various levels. Pressing ENT will exit backlighting adjustment. If the backlighting is set to off, the first keypress will turn the backlighting on to the lowest level for 5 seconds. RECEIVER SENSITIVITY 2: N W 25W PRI 16DX 2=DW 3=SRCH 1=MORE 4=1W 7=MEM 5=DIM 8=SCAN Low contrast setting 6=LOC 9=PRI 2: N W 25W PRI 16DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Radio 5 changes backlighting The SEA 7157 receiver sensitivity may be adjusted for local or distant signals. When working in harbor, it is best to set the LOC/DX sensitivity to LOC. A setting for LOC will reduce the amount of interference caused from pagers and other communications systems. 2: N W 25W PRI 16DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI DX / LOC receive sensitivity To select the receiver sensitivity, press RADIO 6 M N O. CHANGING THE PRIORITY CHANNEL When it is necessary to Dual Scan (Watch) a given frequency and the priority channel, it may be necessary to program the priority channel to something other than channel 16. To change the priority channel, select the channel that will become the priority channel RADIO 9 W X ENT Y priority channel. 2: N W 1W PRI 13DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Setting CH 13 to be the priority channel and press. Press to make the displayed channel the 9

15 ADVANCED RADIO OPERATIONS ASSIGNING MEM CHANNELS FOR SCANNING Channels may be marked for memory scan operation. Memory scan will scan only those channels that are marked as MEM. To assign a channel as a MEM channel, select the channel followed by ENT. Press RADIO 7 P R S to select or deselect the channel as a memory channel. Memory channels may not be available depending on code version and regulations. 2: N W 6DX 25W MEM 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI 2: N W 6DX 25W FEATURE NOT AVAILABLE ENT TO CONTINUE DUAL WATCH SCAN Dual Watch scanning (DW) allows you to scan between the selected and priority channel. The channel being received will be displayed in large numbers while the second channel being watched will simultaneously be displayed in small numbers above the SQL annunciator. To dual watch the selected and priority channel, press RADIO 2 A B C. Receiver monitors selected channel (i.e. 13) and samples priority channel (usually 16). The PRI annunciator will flash at the dual watch scan interval. Priority channel traffic will override selected channel traffic. If the press-to-talk button on the microphone is pushed, scan is aborted and the radio transmits on the non priority channel. Pressing any key will stop dual watch. 2: N W 1W 13DX BRG TO BRG SQL Select channel to Dual Watch 2: N W 1W 13DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Starting Dual Watch Scan 2: N W 25W PRI 13DX 16 DUAL WATCH SQL Dual Watching Priority channel and CH 13 10

16 ADVANCED RADIO OPERATIONS SEARCH SCAN Pressing RADIO 3 D E F allows you to scan 2: N W every channel in the current channel list. 25W Search stops when an active channel is 14DX encountered and resumes when the channel 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC becomes inactive (see SRMD in SCAN 7=MEM 8=SCAN 9=PRI OPTIONS). Press radio, 3 to start scanning 2: N W Press the UP key to skip an active channel. DN 25W Press the key to lockout an active 14DX channel. Exiting SRCH mode cancels lockouts. FEATURE NOT AVAILABLE Entering a channel will exit SRCH. If PTT is ENT TO CONTINUE If available, all channels will be scanned pressed, the search function aborts and radio transmits on the displayed channel. Search may not be available depending on code version and regulations. MEMORY SCAN Memory scan (SCAN) scans all channels that have been tagged into memory. Memory scan channels are recognized by MEM showing on the display when the channel is selected. To start memory scan press RADIO 8 T U V. If no channels are tagged MEM, scan aborts. Scanning stops when an active channel is encountered and resumes when the channel becomes inactive (see SCMD in SCAN OPTIONS). 2: N W 25W MEM 14DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Starting Memory Scan 2: N W 25W 14DX FEATURE NOT AVAILABLE ENT TO CONTINUE Press the UP key to momentarily skip an active channel and continue search. Press the DN key to lockout an active channel during the scan session. Exiting the SCAN mode cancels lockouts. Entering a channel will exit SCAN. If the microphone PTT is pressed, the search function aborts and the radio transmits on the displayed channel. When the priority channel is selected before starting memory scan, the priority channel will be sampled between each channel. This is known as priority scan. Memory Scan may not be available for some code versions and regulations. 11

17 ADVANCED RADIO OPERATIONS SCAN OPTIONS The scan options modify how the radio will react to an active channel when scanning. Pressing RADIO 2 A B 1 SP C modifies the way Search Scan operates by allowing either stop and go or continuous operation. Stop and go operation, will stop on an active channel for the duration of the hang period and then go to the next channel even if the channel is still active. Continuous operation, will stop on an active channel and continue to monitor the channel as long as it is active. When the channel becomes inactive, the radio moves to the next channel. 1 SP Pressing RADIO 3 D E F modifies the priority scan and Dual Watch scan for Guard or Normal mode. Guard mode always receives the priority channel if it is active (Dual Watch default). Normal mode stays on the active channel until it becomes inactive. Search Options may not be available depending on code version and regulations. 2: N W 1W 13DX 1=MORE 2=DW 3=SRCH 4=1W 5=DIM 6=LOC 7=MEM 8=SCAN 9=PRI Primary Radio menu selections 2: N W 1W 13DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER Scan mode options 2: N W 1W 13DX 1=CONTINUO 2=STOP AND GO SRCH MODE=CONTINUO Modifying the search scan mode 2: N W 1W 13DX FEATURE NOT AVAILABLE ENT TO CONTINUE REVIEWING MEMORY CHANNELS Memory channels may be reviewed to see which channels have been assigned as MEM channels. Press RADIO 1 SP 4 G H I to enter the memory channel review mode. Pressing the key will step to the next memory channel. UP Pressing the ENT key will exit the review mode. Memory channels may not be available depending on code version and regulations. 2: N W 1W MEM 13DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER 2: N W 1W MEM 13DX FEATURE NOT AVAILABLE ENT TO CONTINUE 12

18 ADVANCED RADIO OPERATIONS ADJTING THE SCAN HANG TIME Hang time is the amount of time the radio stays on the active channel or the amount of time the radio stays on the channel after the channel becomes inactive, before moving to the next channel. The amount of time the radio hangs before moving to the next channel can be changed from ½ second to 4½ seconds in ½ second increments. Press RADIO 1 SP 6 M N O time. to adjust hang Hang time adjustments may not be available depending on code version and regulations. 2: N W 1W 13DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER Radio menu for hang time adjustment 2: N W 1W 13DX FEATURE NOT AVAILABLE ENT TO CONTINUE CLEARING THE RADIO MEMORY To clear all channels from the memory scan list and reset the priority channel to 16, press RADIO 5 J K 1 SP L. All settings assigned to the radio functions will be reset to the default factory settings. 2: N W 25W PRI 16DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER Resetting radio functions to factory default CHANGING THE BEEP An audible tone will be heard whenever a key is pressed. The key beep can be turned on or off by pressing the RADIO key followed by the 1 SP key. Press 7 P R S to toggle the beep control setting. 2: N W 25W PRI 16DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER Toggle key beep ON / OFF 13

19 ADVANCED RADIO OPERATIONS NAMING A CHANNEL In the normal radio display an 11 character alphanumeric name is shown below the channel number. In some displays, the name is truncated to 5 characters. To modify the name, press the RADIO key followed by the 1 SP key to access the radio menu. Press the 8 T U V key to modify the name of the displayed channel. A cursor will appear at the end of the highlighted name. Pressing any key other than LIST will overwrite the entire BKSP name. Pressing the LIST BKSP will backspace over and erase the last character. Use the alphanumeric keys to enter letters and digits. The and DN keys will UP cycle through the characters on the key. When the desired channel name has been entered, press ENT to return to normal radio operations. 2: N W 25W PRI 16DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER Radio menu to rename channel 2: N W 1W 13DX BRG TO BRG SQL Normal radio display with named channel 2: N W 13 BRG T 1=REVIEW 2=PROGRAM 3=DSC 4=ALT CHAN 5=RELAY 6=ALL SHIP 7=PHONE 8=CLASS A DSC display with named channel CHECKING THE SOFTWARE VERSION The radio s software version is shown on the display at power up. A more detailed version check may be displayed by pressing the RADIO key followed by 1 SP and 9 W X Y. The version number, release date, serial number and checksum will be shown on the first screen. This information can be helpful in determining what options are available in the radio. If the ENT key is pressed within 1 minute, the second screen will show the DSC ID and Group DSC ID currently programmed. Pressing the ENT key or waiting 1 minute will return the radio to normal operations. 2: N W 25W PRI 16DX 1=PREV 2=SRMD 3=SCMD 4=RVW 5=CLR 6=HNG 7=BEEP 8=NAME 9=VER 7157 VER FEB 1999 SERNO: ES00004 CHECKSUM: 2D73 PRESS ENT FOR MORE DSCID: GRPID: PRESS ENT TO EXIT 14

20 DSC DISTRESS CALLING DSC OPERATIONS A distress DSC call can be transmitted by using the following method. When equipped with a protective cover, lift the cover to expose the DISTRESS key. Press and hold the DISTRESS key for 5 seconds. An alert tone will sound while the key is held. Select from the list of available distress conditions shown. If the condition is not shown, press the key for more selections. UP After selecting the type of distress, press the DSC key to transmit the DSC emergency. If the radio is not supplied with positioning information from a LORAN or GPS, follow the prompts to input a Lat/Long position. After entering the position manually and pressing the ENT key, you are prompted to press the DSC key to transmit the DSC emergency on DSC channel 70. 2: N W 1 A EXAMP PRESS DSC TO XMT The radio will wait for an acknowledgment from the coast station and automatically resend the DSC emergency approximately every 4 minutes if a coast station does not respond. You may press the DSC key to resend the emergency again or press the RADIO key to exit the DSC emergency. HOLD 5 SECONDS FOR DISTRESS 2: N W 1 A EXAMP 1=NONE 3=FLOOD 5=GROUND 7=SINKING 1=ADRIFT 3=PIRACY 5=EPIRB QUADRANT: LATITUDE: LONGITUDE: MINUTES(0-59 ): 2=FIRE 4=COLLIDE 6=LISTING UP=MORE 2: N W 1 A EXAMP 2=ABANDON 4=MANOVER UP=MORE 2:55 NO-NAV-DATA 1 A EXAMP ENTER POS MANUALLY? 1=YES 2=NO <1 2:55 NO-NAV-DATA 1 A EXAMP SELECT QUADRANT 0=NE 1=NW 2=SE 3=SW 2:55 NO-NAV-DATA 1 A EXAMP NW : N W 1 A EXAMP REPEAT IN 4:29 WAITING FOR ACK PRESS DSC TO RESEND PRESS RADIO TO EXIT 15

21 DSC OPERATIONS SELECTING THE DSC MENU Pressing the DSC key will have the radio display the primary DSC menu. The menu selections available are used for reviewing received calls, programming station Ids, and transmitting the different DSC formats. Please see the individual sections for complete details. Most calls will conform to one of the five predefined formats which have a simplified calling procedure: Routine individual calls may be selected with DSC. 3 D E F 2: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 2: N W 1 A EXAMP LAST STATION CALLED: CALL SAME STATION? 1=YES 2=NO <1 3=Routine individual call or 7=Phone call 2:56 NO-NAV-DATA Routine individual calls on an alternate calling channel are selected with 4 G H DSC I. Distress relay calls may be placed with DSC. 5 J K L 1 A EXAMP ENTER DSC CALLING CHANNEL: 16 4=Routine individual alternate channel 2: N W 1 A EXAMP SEND RELAY TO 1=ALL SHIPS 2=INDIVIDUAL If a call is to be placed to all ships for warning purposes, use DSC. 6 M N O 16 5=Distress relay call 2: N W 1 A EXAMP 1=ROUTINE 2=SAFETY DSC 7 P R S allows placing a telephone 3=URGENCY 4=DISTRESS call through an operator. 6=All ships call For those calls that do not fit one of the 2: N W mentioned categories, 8 T will allow the operator to compose CLASS A 1 U DSC V A EXAMP formats. Class A formats allow all call types to 1=DSTRESS 2=ALLSHIPS 3=GEOAREA 4=INDIVIDL be generated, including geographic area calls, 5=GROUP 6=PHONE group calls, nonvoice (fax and data) calls, position requests, and polls. 8=Class A call screen The RADIO key can be used to abort the DSC call at any point in the process and return to the main radio display.

22 ROUTINE INDIVIDUAL DSC CALLS DSC OPERATIONS A routine individual call is used to address another station, either ship or coast. Typically such calls are made on Channel 70 and indicate an alternate working channel. If most calls are transmitted on a calling channel other than 70, the default channel can be changed. To transmit a routine individual DSC call, press 3 D E DSC F. If you are calling the same station shown on the screen, simply press 1 SP. The call will be placed on the default DSC channel programmed in the radio. If you do not want to call the same station shown on screen, press 2 A B C and select the station name by pressing the or DN key to UP select from one of the seven lists containing the names. You may also enter the number directly by pressing. 0 Q Z 2: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 2: N W 1 A EXAMP LAST STATION CALLED: CALL SAME STATION? 1=YES 2=NO <1 3=Routine individual call 1=ABOVE H2O 2=BLACKDUCK 3=BOBBINRND 4=H2O TOYS 5=MY DREAM 6=INDPENDEN 7=TEST STAT UP/DN, 1-7, 0=DIRECT Nine character names assigned to MMSI numbers DSC CALLS ING ALTERNATE CALLING CHANNEL Similar to sending a routine individual call, the alternate calling channel method allows the call to be sent on a channel other than the default DSC channel. To transmit such a DSC call press DSC 4 G H I. When prompted to ENTER DSC CALLING CHANNEL, select a channel using the and DN UP arrow keys and/or the numeric keys. The LIST BKSP key may be used to choose from the or INT channel list. Select the station you wish to call, from one of seven stored lists or enter the number directly when prompted. If you are calling the same station shown on the screen, simply press 1 SP 2: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 2:58 NO-NAV-DATA 1 A EXAMP ENTER DSC CALLING CHANNEL: 16 4=Routine individual alternate channel 2: N W 1 A EXAMP LAST STATION CALLED: CALL SAME STATION? 1=YES 2=NO <1 Station to call 17

23 DSC OPERATIONS DSC DISTRESS RELAY CALLS Normally, DSC distress calls are handled by 2: N W coast stations. In some cases, however, a coast 1 A EXAMP station may not receive a DSC call, a ship in 1=REVIEW 2=PROGRAM distress may not be equipped with DSC or the 3=DSC 4=ALT CHAN ship in distress may be unable to make a call. If 5=RELAY 6=ALL SHIP 7=PHONE 8=CLASS A this is the case, a distress relay call can be used Primary DSC menu selections to report another vessel in distress. 2: N W To transmit a distress relay call on Channel 70, press. 1 A EXAMP 5 J K DSC L SEND RELAY TO Press to transmit to all ships or 2 A B 1 SP 1=ALL SHIPS C 2=INDIVIDUAL to transmit an individual call (normally a nearby coast station). If an individual call is desired, 5=Distress relay call select the station you are calling. When prompted, press the DSC key to transmit the call. It is also possible to initiate a distress relay while reviewing the distress call log. This method is preferable if the call was received via DSC as the DSC ID and position will be transferred automatically. Care should be given when sending relay calls for another ship in distress. If you are not positive that the coast station did not receive the original distress call, use voice communications to relay the distress. ALL SHIPS DSC CALLS To call all ships within radio range use an all ships call. Most frequently this is used by coast stations to initiate navigational warnings, weather reports and similar matters of interest to all mariners. To transmit an all ships DSC call, press 6 M N DSC O. Select a priority category at the prompt. Routine indicates normal priority. Safety indicates important navigational or meteorological warning. Urgency relates to safety of life or property. Distress is grave and imminent danger to life and property with immediate assistance required. The call will be sent on the default DSC channel programmed in the radio. Routine calls will be transmitted at the 1W power level. 18 2: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 2: N W 1 A EXAMP 1=ROUTINE 3=URGENCY 6=All ships call 2=SAFETY 4=DISTRESS

24 DSC OPERATIONS PLACING A TELEPHONE CALL WITH DSC DSC can be used to set up a telephone call through an appropriately equipped coast station. To initiate a phone call, press 7 P R DSC S. If you are calling the same station shown on the display, simply press. DN Using the UP and keys, select a phone number from one of the seven stored lists followed by a numeric key and ENT. If the phone number identity is not listed, press to enter the phone number directly. 0 Q Z 1 SP Press the DSC key to transmit the call on the default DSC channel. The radio will change to the working channel assigned by the coast station s acknowledgment. 3: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 3: N W 1 A EXAMP LAST STATION CALLED: CALL SAME STATION? 1=YES 2=NO <1 7=Phone call 1=MAIN OFF 2=HOME 3=LBOWROOM 4=ENG REPAR 5=ELEC REPR 6=SEA INC 7= UP/DN, 1-7, 0=DIRECT Phone number identities PH#: Directly entering phone number RECEIVING A DSC CALL Under most circumstances, received calls are displayed immediately. An alarm tone will sound to alert the operator of the received call. Pressing a key stops the alarm. The information displayed will depend on the nature of the received call. If the MMSI number is not recognized from the list of programmed DSC ID s, the MMSI number will be displayed rather than the name. The radio will automatically change to the requested channel for further communications. #1 DISTRESS CALL from NO-TIME 7/24/99 POS: NOT-GIVEN NATURE: NOT-GIVEN ACK-BY-PHONE: CHAN 16 Distress call message #1 INDIVIDUAL from ABOVE H20 03:01 11/11/98 CHANNEL 21A NO-ERRS ACK COM-REQ: F3E SPX TC2: NO-INFO Routine call message 19

25 DSC OPERATIONS REVIEWING THE DSC CALL LOGS Press the DSC key followed by 1 SP to review the call logs. 2 A B C Press to review distress calls or to review all other calls. The last 40 calls in each category are stored. It is possible to respond to the displayed entry by pressing the DSC key. The messages are displayed with information particular to the format type of the message. Each line of a GEOAREA, INDIVIDUAL, GROUP, ALL SHIPS and UNKNOWN message have the following information displayed: Line 1 Message number and category Line 2 Received from MMSI number Line 3 UTC Time / Date (when call received) Line 4 Channel / Frequencies / Position Line 5 ERRORS / Status (ACK, NOACK) Line 6 TC1 (telecommand 1) Line 7 TC2 (telecommand 2) Each line of a PHONE CALL message contains: Line 1 Message number and phone number Line 2 Received from MMSI number Line 3 UTC Time / Date (when call received) Line 4 Call duration / Channel / Frequencies / Position Line 5 ERRORS / Status (ACK, NOACK) Line 6 TC1 (telecommand 1) Line 7 TC2 (telecommand 2) 1 SP Each line of a DISTRESS CALL / RELAY or ACK has: Line 1 Message number and Distress Call / ACK / Relay Line 2 MMSI number of ship in distress Line 3 UTC Time of position fix / Date when received Line 4 Position Line 5 Nature of Distress Line 6 ACK BY PHONE CHAN 16 / Format By MMSI ID Line 7 Errors / Com chan 16 Pressing the SQL key will print the displayed message. 3: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 3: N W 1 A EXAMP 1=ROUTINE LOG 2=DISTRESS LOG Type of calls to review #1 INDIVIDUAL from ABOVE H20 03:01 11/11/98 CHANNEL 21A NO-ERRS ACK COM-REQ: F3E SPX TC2: NO-INFO UP=NXT DN=PRV DSC=CAL Routine call message #2 PH: from MARINEOP 02:41 11/11/98 CHANNEL 26 NO-ERRS ACK COM-REQ: F3E SPX TC2: NO-INFO UP=NXT DN=PRV DSC=CAL Phone call message #1 DISTRESS CALL from NO-TIME 7/24/99 POS: NOT-GIVEN NATURE: NOT-GIVEN ACK-BY-PHONE: CHAN 16 UP=NXT DN=PRV DSC=CAL Distress call message review 20

26 DETAILS OF A CLASS A CALL GMDSS CLASS A CALLS The DSC call formats described earlier in this manual are predefined message formats of all the possible formats defined by ITU 493. The predefined versions allows the operator to place calls quickly and efficiently without having to input several keypresses for most routine calls. Calls that contain more specific information, such as requiring a data response rather than voice communications, must access the CLASS A menu to create these types of messages. The following describes the structure or organization of CLASS A calls for the sections dealing with the individual format types. To transmit a DSC call using the Class A format, press 8 T U DSC V. Most calls contain the following information: Format Type, Priority Category, Telecommand1, Telecommand2 3: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections The CLASS A menu gives 6 DSC format types that may be used for calling. DSTRESS, ALLSHIPS, INDIVIDL and PHONE have a predefined or simple version message format. GEOAREA and GROUP, do not have predefined message formats. Depending on which DSC format was selected, the operator may be prompted for additional information before the priority category prompt 3: N W 1 A EXAMP 1=DSTRESS 3=GEOAREA 5=GROUP Format Types 2=ALLSHIPS 4=INDIVIDL 6=PHONE appears. The format type of Distress (not a priority category of distress) has a specific structure and will prompt for the nature of the distress rather than a priority category. The priority category designates the importance of the selected message format. Routine indicating a normal priority. Ship Business relates to management of the ship. Safety indicates important navigational or meteorological warning. Urgency relates to safety of life or property. Distress is grave and imminent danger to life and property with immediate assistance required. 3: N W 1 A EXAMP 1=ROUTINE 3=SAFETY 5=DISTRESS Priority categories 2=SHIP-B 4=URGENCY 21

27 GMDSS CLASS A CALLS DETAILS OF A CLASS A CALL (cont.) Telecommand 1 (TC1) is defined as the form of communications the receiving station should use to respond with after receiving the call. The choices for TC1 or responses expected are: 3: N W F3E SPX FM voice communications using simplex. F3E DPX FM voice communications using full duplex. 1 A EXAMP F1B FEC F1B ARQ CANT DO DATA F1B TTY F1B TTYR FAX NO INFO FSK digital communications using automatic reception of FEC telegraphy. FSK digital communications using automatic reception of ARQ telegraphy. Unable to Comply with request. FAX or MODEM data. FSK digital communications using automatic reception of TTY telegraphy. FSK digital communications using automatic reception of TTY telegraphy - receive only. Facsimile. No additional information needed for response. Additional TC1 options for Distress priority categories and Individual, Group or Phone format types: DST ACK All Ships format using Distress priority category to send a Distress Acknowledgment. DST REL All Ships, Geoarea, Individl and Group format types using Distress priority category to send a Distress Relay. POLLING Individual and Group format types to test if a station is present or able to receive. POSITION Individual, Group and Phone format types to retrieve a stations position. END CALL Phone Call formats only. Telecommand 2 (TC2) gives details to clarify the TC1 selection. The available TC2 options when the selected TC1 option started with F or NO INFO are: NEUTRAL A non warring vessel or neutral party. MEDICAL A medical transport vessel. NO INFO No additional information needed for response. 1=F3E SPX 3=F1B FEC 5=CANT DO 7=F1BTTYR 2=F3E DPX 4=F1B ARQ 6=DATA UP=MORE Method of communications for response (TC1) 3: N W 1 A EXAMP 1=F1B TTY 2=FAX 3=NO INFO UP=MORE Method of communications for response (TC1) 3: N W 1 A EXAMP 1=NEUTRAL 2=MEDICAL 3=NO INFO The CANT DO TC1 selection has 10 TC2 options to explain why the station is unable to comply with (cant do) a received DSC call. NO RESN CONGEST BY QUEUE BARRED NO OP OPUNAVL DISABLE BADCHAN BADMODE No reason given. The channel is congested. Phone number is busy. Queue. Restricted from use. No operator present. Operator is unavailable. Equipment is disabled. The requested channel is not valid or not available. The communications mode given is not valid or not available. 22 Details for communications response (TC2) 3: N W 1 A EXAMP 1=NO RESN 3=BY 5=BARRED 7=OPUNAVL 2=CONGEST 4=QUEUE 6=NO OP UP=MORE CANT DO Telecommand 2 options (TC2) 3: N W 1 A EXAMP 1=DISABLE 2=BADCHAN 3=BADMODE UP=MORE CANT DO Telecommand 2 options (TC2)

28 GMDSS CLASS A CALLS DETAILS OF A CLASS A CALL (cont.) The DATA TC1 selection also has 10 TC2 options to specify the data protocol. FAX/DAT Facsimile data. V bps duplex modem. V bps duplex modem. V.22-bis 2400 bps duplex modems. V /1200 bps modems. V.26-bis 2400/1200 bps modems. V.26-ter 2400 bps duplex modems using echo cancellation. V.27-ter 4800/2400 bps modems. V.32 Duplex modems up to 9600 bps. NO-INFO No additional information. After the TC2 option is selected, the operator is prompted to include the position with the call, switch to another working channel after the call is transmitted or no other information. If an individual address has been specified, the operator must indicate if an ACK is required from the receiving station. If Distress Acknowledgment or Distress Relay has been selected, you will be prompted to enter the DSC ID of the ship in distress as well as the position and nature of the distress. 3: N W 1 A EXAMP 1=FAX/DAT 3=V.22 5=V.23 7=V.26TER 2=V.21 4=V.22BIS 6=V.26 UP=MORE DATA Telecommand 2 options (TC2) 3: N W 1 A EXAMP 1=V.27TER 2=V.32 3=NO INFO UP=MORE DATA Telecommand 2 options (TC2) 3: N W 1 A EXAMP 1=NO OTHER INFO 2=INCLUDE POSITION 3=ALT WORKING CHAN SELECT 1-3 <1 Final options before transmit 3: N W 1 A EXAMP 1=REQUEST ACK 2=NO ACK NEEDED 3=SENT ACK SELECT END 1-3 <1 Specify if ACK is needed for channel change 23

29 GMDSS CLASS A CALLS DISTRESS CALL CLASS A distress calls require the least amount of work to create. This reinforces the concept of keeping GMDSS distress alerting simple. Press 8 T U DSC 1 SP V and select the most suitable nature of the distress. If the position data is not valid or is not available, the operator is prompted to input the position manually. After the position has been entered, either automatically or manually, press DSC to transmit the call. The radio will switch to the programmed default DSC channel and transmit the call. 3: N W 1 A EXAMP 1=REVIEW 3=DSC 5=RELAY 7=PHONE 3: N W 1 A EXAMP 1=DSTRESS 3=GEOAREA 5=GROUP 8=Class A call screen 2=PROGRAM 4=ALT CHAN 6=ALL SHIP 8=CLASS A Primary DSC menu selections 1=NONE 3=FLOOD 5=GROUND 7=SINKING 2=ALLSHIPS 4=INDIVIDL 6=PHONE 3: N W 1 A EXAMP 1=ADRIFT 3=PIRACY 5=EPIRB 2=FIRE 4=COLLIDE 6=LISTING UP=MORE Nature of Distress - screen one 3: N W 1 A EXAMP 2=ABANDON 4=MANOVER UP=MORE Nature of Distress - screen two 3: N W 1 A EXAMP PRESS DSC TO XMT Transmitting the DSC call SENDING DSC MESSAGE Transmit of DSC message 24

30 ALL SHIPS CALLS The operator will be prompted to choose a priority category or level of importance for the call to be transmitted. After selecting the priority category, select the form of communications the receiving station should use when responding to this call (TC1). The secondary telecommand prompt (TC2) gives details to clarify the TC1 selection. After the TC2 option is selected, the operator is prompted to include the position with the call, switch to another working channel after the call is transmitted, or no other information. GMDSS CLASS A CALLS Press 2 A B 8 T U DSC V C to select the 3: N W All Ships format type. 1 A EXAMP 1=ROUTINE 2=SHIP-B 3=SAFETY 4=URGENCY 5=DISTRESS 1=F3E SPX 3=F1B FEC 5=CANT DO 7=F1BTTYR All ships priority category 3: N W 1 A EXAMP 2=F3E DPX 4=F1B ARQ 6=DATA UP=MORE Method of communications for response (TC1) 3: N W 1 A EXAMP 1=F1B TTY 2=FAX 3=NO INFO UP=MORE Method of communications for response (TC1) 3: N W 1 A EXAMP 1=NEUTRAL 2=MEDICAL 3=NO INFO Distress Acknowledgment or Distress Relay TC1 selections will prompt for the DSC ID of the ship in distress as well as position and nature of distress. Transmit the call by pressing the DSC key. Details for communications response (TC2) 3: N W 1 A EXAMP 1=NO OTHER INFO 2=INCLUDE POSITION 3=ALT WORKING CHAN SELECT 1-3 <1 Final options before transmit 3: N W 1 A EXAMP PRESS DSC TO XMT Transmitting the DSC call 25

31 GMDSS CLASS A CALLS GEOGRAPHICAL AREA CALLS To send an All Ships call to a specific rectangular geographical area, select GEOAREA with DSC. 8 T U V 3 D E F Prompts will ask for the area s NW (top left) corner in Latitude and Longitude format. Prompts for the lower right corner will then asked. The lower right corner can be up to 99 degrees from the reference (top left) corner. The operator will be prompted to choose a priority category or level of importance for the call to be transmitted. After selecting the priority category, select the form of communications the receiving station should use when responding to this call (TC1). The secondary telecommand prompt (TC2) gives details to clarify the TC1 selection. After the TC2 option is selected, the operator is prompted to include the position with the call, switch to another working channel after the call is transmitted, or no other information. 3: N W 1 A EXAMP Select QUADRANT OF AREA S NW CORNER 0=NE 1=NW 2=SE 3=SW Top left reference corner for Geoarea call 3: N W 1 A EXAMP NW CORNER: 47 N 122 W 48 LAT BY DELTA LNG (0-99 ): 1 Lower right corner for Geoarea call 3: N W 1 A EXAMP 1=ROUTINE 3=SAFETY 5=DISTRESS 1=F3E SPX 3=F1B FEC 5=CANT DO 7=F1BTTYR Priority categories 2=SHIP-B 4=URGENCY 3: N W 1 A EXAMP 2=F3E DPX 4=F1B ARQ 6=DATA UP=MORE Method of communications for response (TC1) 3: N W 1 A EXAMP 1=NEUTRAL 2=MEDICAL 3=NO INFO Details for response (TC2) 3: N W 1 A EXAMP 1=NO OTHER INFO 2=INCLUDE POSITION 3=ALT WORKING CHAN SELECT 1-3 <1 Final options before transmit 26

32 INDIVIDUAL / GROUP CALLS GMDSS CLASS A CALLS To select an individual format type press 4 G H 8 T U DSC V I. To select a group format type press 8 T U DSC V. When calling an individual station or a group of stations, a prompt will appear showing the last station called and ask if the same ID is to be called. If a different station is desired, press 2 A B C DN then use the UP and keys to select one of the seven screens of stored ID s. Select a station with a numeric key and ENT. You may also enter the number directly by pressing. 0 Q Z 5 J K L The operator will be prompted to choose a priority category or level of importance for the call to be transmitted. After selecting the priority category, select the form of communications the receiving station should use when responding to this call (TC1). The secondary telecommand prompt (TC2) gives details to clarify the TC1 selection. After the TC2 option is selected, the operator is prompted to include the position with the call, switch to another working channel after the call is transmitted, or no other information. The operator must indicate if an ACK is required from the receiving station. 3: N W 1 A EXAMP LAST STATION CALLED: CALL SAME STATION? 1=YES 2=NO <1 Individual or group MMSI number to call 1=ABOVE H2O 2=BLACKDUCK 3=BOBBINRND 4=H2O TOYS 5=MY DREAM 6=INDPENDEN 7=TEST STAT UP/DN, 1-7, 0=DIRECT Select name assigned to MMSI numbers 3: N W 1 A EXAMP 1=ROUTINE 3=SAFETY 5=DISTRESS 1=F3E SPX 3=F1B FEC 5=CANT DO 7=F1BTTYR Priority categories 2=SHIP-B 4=URGENCY 3: N W 1 A EXAMP 2=F3E DPX 4=F1B ARQ 6=DATA UP=MORE Method of communications for response (TC1) 3: N W 1 A EXAMP 1=NEUTRAL 2=MEDICAL 3=NO INFO Details for response (TC2) 3: N W 1 A EXAMP 1=NO OTHER INFO 2=INCLUDE POSITION 3=ALT WORKING CHAN SELECT 1-3 <1 Final options before transmit 27

33 GMDSS CLASS A CALLS PHONE CALLS To set up a telephone call through an appropriately equipped coast station press DSC.. It is strongly recommended that the predefined phone format described in Placing A Telephone Call be used unless special features are needed. The last station called will be displayed and prompt if the same station should be called. If a different station is desired, press 2 A B C DN then use the UP and keys to select one of the seven screens of stored ID s. Select a station with a numeric key and ENT. You may also enter the number directly by pressing. 0 Q Z 8 T U V 6 M N O The operator will be prompted to choose a priority category or level of importance for the call to be transmitted. After selecting the priority category, select the form of communications the receiving station should use when responding to this call (TC1). The secondary telecommand prompt (TC2) gives details to clarify the TC1 selection. After the TC2 option is selected, the operator is prompted to request an acknowledgment from or send an acknowledgment to the receiving station. Pressing the DSC key will transmit the message to the coast station. 3: N W 1 A EXAMP LAST STATION CALLED: CALL SAME STATION? 1=YES 2=NO <1 Public coast station s MMSI number to call 3: N W 1 A EXAMP 1=F3E SPX 3=POSITON 5=ENDCALL 7=FAX 2=F3E DPX 4=CANT DO 6=DATA Method of communications for response (TC1) 3: N W 1 A EXAMP 1=NEUTRAL 3=PAYFONE 2=MEDICAL 4=NO INFO Details for response (TC2) 1=MAIN OFF 2=HOME 3=LBOWROOM 4=ENG REPAR 5=ELEC REPR 6=SEA INC 7= UP/DN, 1-7, 0=DIRECT Phone number identities 3: N W 1 A EXAMP 1=REQUEST ACK 2=NO ACK NEEDED 3=SENT ACK SELECT END 1-3 <1 Specify if ACK is needed for channel change 3: N W 1 A EXAMP PRESS DSC TO XMT Transmitting the DSC call 28