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Silva S 15 Vhf Owners Manual




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Operation Manual Description Page
1 Introduction 3
2 Front Panel Description 4
21 Front 4
22 Back Of Unit 5
23 LCD Display 6
3 Fist 7
31 Soft Keypad 0 9 7
4 General Operation 9
41 Dual Watch 9
42 Full Scan 10
43 Memory Scan 10
44 High Low RF Output Power Selection 10
45 Squelch Control 11
46 Volume Control 11
47 Channel 16 12
48 Channel Select 12
49 Memory Channel Select 12
5 Receiving A DSC Call 13
51 Routine Calls 13
52 Urgency And Safety Calls 13
53 Group Calls 14
54 Distress Alert 14
6 Sending A DSC Call 16
61 Distress Calls 16
62 Routine Calls 17
63 Urgency And Safety Calls 18
64 Group Calls 19
7 Log View 20
71 Review Routine Log 20
72 Review Distress Log 21
73 View NAVTEX Messages 22
Page 1
Operation Manual S15
8 Settings 24
81 Backlight Keypad Lighting Adjustment 24
82 Contrast Adjustment 24
83 Speaker Selection 25
84 Tone Selection 25
9 DSC Setting 26
91 MMSI Setting 26
92 Set Group ID 27
93 Set Date And Time 28
94 Set Manual Position 28
95 Set Called Channels 29
96 Set Directory Of Called MMSI And Vessel Names 31
10 NAVTEX Setting 33
101 Station Selection 33
102 Message Selection 34
103 Clear All NAVTEX Logs 34
11 GPS Navigation Setting 36
111 Set Waypoint Number Go To Waypoint 36
112 Set Waypoint 37
113 Review Waypoint 38
114 Navigation View 38
115 Insert Waypoint 40
116 Delete Waypoint 41
12 Technical 42
121 Receiver 42
122 Channel 70 Monitor General Specification 43
123 Transmitter 43
124 NAVTEX 43
125 GPS 43
13 VHF Marine Channel Chart 44
14 Installation 45
141 Unit Installation 45
142 Antenna Installation 46
15 Parts Provided 48
16 Warranty 48
17 Certificate Of Conformity 49
Page 2
Operation Manual S15
1 S15 is a ClassD Digital Selective Calling DSC VHF marine built in GPS capability position waypoints course and speed over the
ground if connected with GPS input from either a GPS navigator or The S15 also has full NAVTEX message display capability with a suitable NAVTEX
unit The transceiver is a
25watt frequency modulated waterproof for the 156025 162550MHz band
The S15 supports the latest GMDSS requirement for nonSOLAS vessels
from the international maritime organization IMO
The S15 will enable you to make digitally selected calls which are quicker
and simpler to make then conventional voice calls using channel 16 Should
a distress urgency or safety situation occur with the S15 you can quickly
raise an alert indicating your identity your position and distress communication on the emergency voice channel
The S15 will display received NAVTEX messages and the ID of from the NAVTEX receiver NAVTEX is a worldwide coastal system The broadcast stations
transmit navigational warnings Search And Rescue SAR information and other
data for ships sailing within their service range
If the S15 is connected with a GPS it will also display your vessels position
and Universal Time Coordinated UTC and it can also give you the COG
Course Over Ground SOG Speed Over Ground BTW Bearing To
Waypoint and DTW Distance To Waypoint of your operates a policy of continual development and reserves the right to
alter and improve the specification of their products without notice
Page 3
Operation Manual S15
2 Front Panel Front
1 POWER SWITCH ON
Press the ON button once on the front panel of the S15
To switch off press ON again the S15 switch off
2 CHANNEL MEMORY KEY M
The function of this key is to add or delete the currently selected channel
from the scan memory
3 CLEAR KEY CLR
Stops current task and returns to the main screen
4 SQUELCH MODE SELECTION KEY SQ
5 VOLUME CONTROL MODE SELECTION KEY VOL
6 FUNCTION SELECT KEY F
Press this key once to enter the function selection mode the LCD will
display the function menu The selectable functions are DUAL WATCH
FULL SCAN MEMORY SCAN HL highlow POWER and DIM Press
the F key again to confirm and change to selected function screen
7 DOWN KEY
Selects the desired channel squelch control level or volume control
level Each press selects the next lower channel number or level Press
and hold to scroll down through all of the channels
8 CHANNEL 16 KEY 16
Used to immediately return to channel 16 from any channel or function
Page 4
Operation Manual S15
9 UP KEY
Selects the desired channel squelch control level or volume control
level Each press selects the next higher channel number or level Press
and hold to scroll up through all of the channels
10 LIQUID CRYSTAL DISPLAY LCD
Dot Matrix display giving up to 8 lines of SPEAKER
12 DISTRESS CALL BUTTON
The distress button as located under a protective spring loaded cover
that must be lifted before the button can be pressed
13 FIST CORD
22 Back
1 POWER CORD CONNECTOR
2 GPS NAVTEX EXTERNAL SPEAKER CONNECTOR
3 ANTENNA CONNECTOR
4 VENTILATION HOLE
Should mist be discovered on the inside of the LCD Display remove
this screw and ventilate the unit until the mist is cleared Upon
completion the screw should be fully tightened to prevent water
seepage Insert the screw and tighten once again Note To ensure
your S15 maintains its waterproof feature please make sure the
waterproof plastic washer is properly inserted before the screw
Page 5
Operation Manual S15
23 LCD 1 7 6 5 4 3 2 1
VL Volume control is activated the Bar indicates the volume level
Sq Squelch control is activated the Bar indicates the squelch level
Mu Appears when the squelch opens
RX The radio is in receptive state RX and when receiving a signal
TX The radio is transmitting TX
GROUP 2
Hi Indicates TX maximum output power is 25W
Lo Indicates TX maximum output power is 1W
GROUP 3
S Indicates the displayed channel is a simplex channel
D Indicates the displayed channel is a duplex 4
I Indicates the international channels are selected
K Indicates the international channels with added channel M1 and
M2 are 5
DW Indicates dual watch scanning operation
FS Scans every channel of current channel list
MS Scans the selected memory 6
M Indicates the displayed channel is a selected memory scanning
Datehours minutes
Page 6
Operation Manual S15
3 Fist fist has the microphone Push to Talk PTT switch
and Softkeypad as illustrated SOFTKEYPAD 0 9
The telephone style keypad ITU 0 9 A Z is used for entering numeric
data When required the keys will automatically switch to character mode
allowing letters numbers and punctuation characters to be pressing a key will cycle through the characters available on
that key
A D G J M P T W 0
press
B E H K N Q U X
press
C F I L O R V Y
press
S Z
press
1 2 3 4 5 6 7 8 9 0
press
Page 7
Operation Manual S15
ENTER KEY the action
CLEAR KEY CLR
Stop tasks and returns to main screen or returns to the last screen
Key Moves the cursor position when setting
Use to select working channel Up or Down Can also be used to select
stored working channels Allows viewing of next or previous message
and selection next or previous item
PTT BUTTON
Keys the transmitter allowing you to transmit a CALL menu
Page 8
Operation Manual S15
4 General S15 is switched on by pressing the ON key once If a GPS receiver
and a NAVTEX receiver have been connected to the S15 the main
screen will be as the F key on the front panel once to enter function The FUNCTION SELECTION screen will be displayed as the or key to move the
symbol on the screen to the
required function DUAL WATCH or FULL SCAN or MEMORY SCAN
or HL POWER and DIM then press F key confirm Dual watch Full
Scan Memory Scan HL Power or DIM can be selected the will be displayed Press F key again to restore normal press CLR key to change to main screen
41 DUAL WATCH DW
Dual watch enables the radio to scan between the selected channel and
priority channel normally CH16 When in dual watch mode the DW
indicator will appear on the bottom line of the LCD
Page 9
Operation Manual S15
Note that the radio will not transmit nor will alternative channels be able
to be selected while in dual watch mode To restore normal F key again or press channel 16 key
42 FULL SCAN FS
This function scans through each channel sequentially until a signal is
detected above the squelch level set Once the signal ends or drops
below the squelch level the radio will continue scanning Since the scan
function stops on channels where a signal is detected the radio will be
locked If you want the scan continue press key once When in Full
Scan mode FS will appear on the bottom line of LCD
Note that the radio will not transmit nor will alternative channels be able
to be selected while in Full Scan mode To restore normal F key or press channel CH16 key to go to back to VHF screen
43 MEMORY SCAN MS
The Memory Scan operates in the same way as the Full Scan except
that it will only scan channels that have been entered into the Scan
Memory If no channels have been entered into the memory then this
function will not available See 49 Page 12
When in memory scan mode MS will appear on the bottom line of the
44 HIGHLOW RF OUTPUT POWER or key to move the symbol on the screen to required function HL POWER then press the
ENT key for selection of low or high power then the Hi or Lo will
appear on the bottom line of the LCD
Page 10
Operation Manual S15
45 SQUELCH CONTROL
In the main screen press the SQ key on the front panel the screen will
be changed to the VHF screen Squelch is used to adjust the threshold squelch level When pressed the squelch level bar
and Sq symbol will appear at the right side of the screen as cut out weaker signals press key to increase the squelch until interference noise
disappears To receive weaker signals
press key to decrease the VOLUME CONTROL VOL
Press the VOL key on the front panel the volume control screen will be
displayed The level Bar and character Vl will appear on the right side of
the screen as key to increase the volume Press key to reduce the volume
Page 11
Operation Manual S15
47 CHANNEL 16 16 key will automatically select channel 16 on high power Any
active function Dual watch scanning DSC setting log view NAVTEX
GPS setting etc will be CHANNEL SELECT
Press key to go up through the channels Press key to go down
through the Selection the desired channel directly from the main screen by pressing the
channel number on the fist and then press ENT
to confirm
49 MEMORY CHANNEL SETTING the M key will add the currently selected channel into the
scan memory When operating in VHF receiver mode if the key is
pressed the screen will show M on the bottom right of the that the channel has been entered into the scan memory By
pressing the M key again the M will be deleted indicating that the
channel is not a memory scan channel
Page 12
Operation Manual S15
5 Receiving A DSC Call
When a DSC call is received the radio will switch to the call log screen to
display the details of the call and ring or sound the alarm depending on
the nature of the call The procedures that follow describe how to handle
the types of calls that can be ROUTINE CALLS
When a Routine call is received the screen will show the details of the
call where it is from and working channel as follows Also an alarm the ENT key on the fistmike keypad an will
be sent to caller and the radio will be automatically switched to for normal voice The will disappear when the
call has been looking back at routine call logs if there is a symbol on the
screen you can press ENT key to send an the will URGENCY AND SAFETY CALLS
The procedures for urgency and Safety calls are very similar An urgency
call will sound the distress alarm and switch the radio to Channel 16 A
safety call will sound a normal ring and switch the radio to the channel as follows
Page 13
Operation Manual S15
Press the ENT key to stop the alarm or ringing and then listen for the
voice message
53 GROUP CALLS
When a Group call is received the radio will sound an alarm and display
the details of the call indicating whom it is from and the working channel
as ENT key to stop the alarm then listen for the voice message DISTRESS ALERT
If a Distress Alert or a Distress Relay is received from another vessel an
alarm will sound and the Radio will switch to channel 16 The screen will
show the details of the Distress Alert or Distress Relay the MMSI of the
vessel the nature of the distress its position and time Mute the alarm
by pressing ENT key and maintain a listening watch on channel 16 for
the distress messages Press CLR key to clear the display
Page 14
Operation Manual S15
Page 15
Operation Manual S15
6 Sending A DSC Call
Making a DSC call is very simple First choose the call type Urgency Group or Distress Alert If required enter and working channel and then send the
call by pushing ENT
key on the fist The digital signal will be sent out in
under a second containing the vessels ID and the call type
In order for the radio to function your MMSI Maritime Mobile number will need to be entered This number can be obtained
from your local radio authority For the group call the
group ID will need to be entered also
61 DISTRESS ALERT THIS CALL SHOULD ONLY BE MADE IF
THE VESSEL IS IN A DISTRESS SITUATION AND LIFE IS a Distress Alert call is very simple Lift the protective cover and
press DIST key on the front panel The Distress Alert screen will be
displayed as time permits press the or keys on front panel or or keys on
firstmic to select the nature of the distress There are 10 as Distress Alert situations which are fire grounding listing sinking adrift abandoning
piracy and
man overboard There is also a default undesignated category which
is used if no category is selected here
Page 16
Operation Manual S15
Press and hold the DIST key for about five seconds A countdown to
the transmission will be displayed then an alarm will sound
The Distress Alert transmission contains the following data
1 The vessels MMSI
2 The vessels position either from the NMEA0183 input or manually
entered
3 The time from NMEA or Manual input
4 The nature of the the Distress Alert has been sent the Radio will automatically tune to
channel 16 and the Radio will repeat the Alert approximately every four
minutes until either an is received or CLR key is
pressed it is not recommended that the Distress Alert is by pressing CLR key unless you are requested to do so by
the rescue the Distress Alert remains active an intermittent alarm will continue
to sound approximately once every 25 an is received from the Rescue this will cancel the Distress Alert transmission from the Radio switch the
Radio to the required working channel Rescue Coordination will be performed using the channel
62 ROUTINE CALL
To make a routine call press CALL key on the to select Routine call The screen is as follows
Page 17
Operation Manual S15
Then enter a called vessels MMSI number with the keypad and select a
working channel by pressing the or key on the keypad from the
channel list
Press ENT key and the Radio will send a routine call Then the radio
will change to following screen and wait for a a reply is received it will sound a tone and automatically set to the
specified working channel A voice call can then be made in the URGENCY CALL AND SAFETY CALL
Press CALL key on the fist keypad to select
safety call or urgency call as follows the ENT key the screen is as follows Page 18
Operation Manual S15
Press the ENT key again to make the call or press CLR for cancel
When the call is sent the radio will be set to the working channel Allow a
few seconds for the stations receiving the call to switch to the Then make a normal voice call on the selected working channel
64 GROUP CALL
If a group ID has been set up for the called Radio A call can be made to
other members of the group
Press the CALL key on the keypad to select the group call screen a working channel from the channel list by pressing the or
keys on the ENT key to send the call allow a few seconds for the other
members of the group to reach the radios all VHF radios in the group
should automatically switch to selected working channel then make a normal voice call
Page 19
Operation Manual S15
7 LOG VIEW
There are 3 different logs routine log distress message log and
NAVTEX message log To view the logs press MENU key on the mike
keypad the MENU SELECTION screen will appear on the display or key to move the symbol on the MENU to front of LOG VIEW then press ENT key to
confirm the LOG
VIEW screen will appear on the display as REVIEW ROUTINE LOG
The routine log can be used to look back through the last 20 calls that
have been received the most recent call first
Press or key to move the symbol on the LOG REVIEW screen to
front of ROUTINE LOG then press ENT key to confirm the VHF
ROUTINE LOG screen will appear on the display If no messages have
been received the screen will be as follows and after a while revert to the last screen
Page 20
Operation Manual S15
If messages have been received the screen will be as or keys are used to move back or forward through the CLR key to exit from the VHF ROUTINE LOG
screen and go
back to the LOG VIEW screen
72 REVIEW DISTRESS LOG
The distress log can be used to look back through the previous 20
distress calls that have been received the most recent call first
Press or key to move the symbol on the LOG VIEW screen to
front of DISTRESS LOG then press ENT key to access distress log
Page 21
Operation Manual S15
If there have been no messages received the screen will be LOG NO ITEM and after a while automatically revert to the
last screen
If messages have been received the screen will be as the or key to move back and forward through the distress log
The distress message screen is as VIEW NAVTEX MESSAGE
Press or key to move the symbol on the LOG VIEW in front of
NAVTEX MESSAGE then press ENT key to enter into the list screen as follows
Page 22
Operation Manual S15
On the screen the letter N indicates this message has not been read
the letter W indicates the message is a Warning message A B or C
type message and S indicates the message is a SAR message D
type message The list can store the previous 60 message have been received the most recent first
Press or key to move the symbol on the screen in front of the
message you wish to select then press ENT key to enter
into NAVTEX message screen as character 1 indicates the page number of the or key to show and read the front page or the next page of
the message
Page 23
Operation Manual S15
8 the instructions listed below to set up user BACKLIGHT AND KEYPAD LIGHTING on the microphone to select BACKLIGHT option and press
ENT to obtain the following press to adjust the brightness of backlight There are 5
levels of brightness Press ENT for confirmation and to exit
82 CONTRAST on the microphone to select CONTRAST and press ENT
to obtain the following press to adjust the contrast of the screen There are five
levels of contrast Press ENT for confirmation and to exit
Page 24
Operation Manual S15
83 SPEAKER on the microphone to select SPEAKER and press ENT to
obtain the following press to select internal external or both speaker Press
ENT for confirmation and exit
84 TONE to select BEEP and press ENT to obtain the press to select enable or disable the BEEP tone function
for the keypad button press and the notifying sound of received Press ENT for confirmation and to exit
Page 25
Operation Manual S15
9 DSC Settings
91 MMSI SETTING
If the S15 has not been programmed with an MMSI when powering ON
the unit the VHF MMSI SET screen will appear on the display as ON the unit then press the numeric soft key on the microphone to
enter the MMSI numbers 9 numbers This number can be obtained from
your local radio authority If a mistake is made use the
or key to move back and edit the error Then press ENT key the
Radio will ask for verification as is important that the MMSI entered is checked carefully as it can only
be entered once and if a wrong MMSI is entered it must be returned to an
authorised dealer to erase the MMSI from the memory
If sure press ENT key once again to confirm the entered MMSI the
screen will show the MMSI of your vessel
If you have not entered an MMSI you can still use the unit but the default
MMSI is 000000000 and every time the S15 is turned on it will ask you to
enter the MMSI number
Page 26
Operation Manual S15
To view your vessel MMSI press MENU key on the mike keypad to
select the MENU SELECTION screen Press or key on the mike
keypad to select the DSC SETTING screen as or key again to move the symbol on the screen to front of
MMSI and press ENT key to confirm The MMSI VIEW screen is CLR key on the mike keypad to go back to DSC or press CLR key on the front panel to go
back to main screen
To change the MMSI number after it has been programmed the unit must
be returned to an authorised dealer to erase the existing number
92 SET GROUP ID
To enter a Group ID if for example the vessel is part of a flotilla or fishing
fleet etc press or key to move the symbol on the DSC
SETTING screen in front of GROUP ID then press ENT key to ID SET screen will be displayed as follows
Page 27
Operation Manual S15
Use the numeric soft keys to enter the GROUP ID numbers 8 numbers
the first number must be 0 If a mistake is made use the or key to
move the cursor on the screen back and reset the number Then press
ENT key the radio will ask for verification If sure press ENT key once
again to confirm the entered numbers If no press CLR key to go back
to last screen
93 SET DATE AND TIME
Press or key to move the symbol on the DSC SETTING screen
in front of DATETIME then press ENT key the SET will the numeric keys to enter the numbers then press ENT key to
accept the date and time
Note that the time should be entered in 24 hour clock format
94 SET MANUAL Page 28
Operation Manual S15
If the position of the vessel cannot be obtained from a GPS via the NMEA
0183 input this data can be entered or key to move the symbol on the DSC SETTING screen
in front of POSITIONUTC then press ENT key to confirm screen will appear as the numeric soft keys to enter required data use numeric key 0 to
change to either N or S the either E or W Then press ENT key to
accept the position and time 23 hours if the radio has not received any position update or from the NMEA input then the position data will the
screen and it will show NO SET CALLED CHANNEL
The Radio includes a list of 9 working channels which can be when using the routine group calling The first four channels are
preset as 06 08 72 and 77 These cannot be amended The channels are programmable Always consult your local when choosing suitable working channels Be
aware of
which channels are duplex and will not allow shiptoship or key to move the symbol on the DSC SETTING screen
in front of WORKS CHANNEL then press ENT key to confirm the
WORK CHANNEL screen will appear as follows
Page 29
Operation Manual S15
Press or key to select add channel screen then press ENT key to
enter the WORK CHANNELADD screen as or key to change the selected channel and press ENT key
to accept Then press or key to enter next or key to move the symbol on the WORK in front of DEL then press ENT to accept The WORK
CHANNEL screen appears as follows
Page 30
Operation Manual S15
Press or key to select channel the 5th the 9th channel that is to
be deleted then press ENT key to accept
96 SET THE DIRECTORY OF CALLED MMSI AND VESSELS NAME
The DIRECTORY screen is used to add edit and entries from a list of up
to 20 stored MMSI numbers which can be recalled in the routine call
screen Press or key to move the symbol on the DSC in front of DIRECTORY then press ENT key the appears as access a new entry press or to move
symbol on the screen
in front of ADD then press ENT key to enter DIRECTORYADD screen
as the numeric soft keys to enter a name and number and use the
or keys to move backwards and forwards along the line When the
name and number have been entered press ENT key to confirm
Page 31
Operation Manual S15
To edit an existing entry press or key to move symbol on the
DIRECTORY screen in front of EDIT then press ENT key to screen as the or key to select the number of the entry Then press the or key to move
along the name and MMSI fields using the
soft numeric keypad to edit the data Press ENT to store the delete an entry press or key to move symbol on the
DIRECORY in front of DEL then press ENT key to enter screen as the or key to select the number you want to delete then press
ENT key to delete the entry
Page 32
Operation Manual S15
10 NAVTEX Setting
To limit the number of message displayed in the NAVTEX log you can
select what station and also what type of message you wish to select
101 STATION MENU key to enter the MENU SELECTION screen then press
or key to move the symbol on the screen in front of and press ENT key to enter the NAVTEX as or key again to move the symbol on the screen in
front of
STATION SELECTION then press ENT key the screen will appear on the display as or to move the symbol on the screen in front of the station
that you want to select then press or key to set the this station to
RECEIVE or IGNORE Press ENT key to confirm and revert to the
previous screen or press CLR on firstmic to cancel
Page 33
Operation Manual S15
102 Message or key to move the symbol on the NAVTEX in front of MESSAGE SELECTION then press ENT key to enter
the MESSAGE SELECTION screen as or key to move the symbol on the screen in front of the
message category that you wish to inhibit then press or key to set
the this message category to RECEIVE or IGNORE Press ENT key to
confirm and revert to the previous screen or press CLR on firstmic to
cancel When you change RECEIVE into IGNORE for message A B D
or L the following confirmatory screen will appear on the display CLEAR ALL NAVTEX
If want to clear all NAVTEX log messages press or key to move the
symbol on the screen in front of CLEAR ALL NAVTEX then press
ENT key the CLEAR ALL NAVTEX screen will appear on the display as
follows
Page 34
Operation Manual S15
If YES press ENT ALL messages will be clear and go back to screen
Page 35
Operation Manual S15
11 GPS Navigation Settings
To display the vessels position and navigation information the S15 must
be connected to a GPS and waypoints must be or key to move the symbol on the MENU SELECTION in
front of GPS NAVIGITION Press ENT key for confirm then setting screen will appear as Set Waypoint Number
Press or key again to move the symbol on the screen in front of
SET WAYPOINT NUMBER then press ENT key for confirm The SET
WAYPOINT NUMBER screen will appear as or key to move the cursor on the screen then use the
numeric key to enter the waypoint number Then press ENT key to
confirm and return back to SET WAYPOINT NUMBER screen The
maximum number of waypoints are 50
Page 36
Operation Manual S15
The waypoint number represents the number of waypoints You can
find the waypoint number under the directory of Waypoint example if the waypoint number shows 05 it means that there are
5 waypoints stored Please note that the maximum storage for waypoints
is 50 If the storage exceeds the maximum storage the display will
indicate Invalid Data to express that the input is invalid The will go back to SET WAYPOINT NUMBER automatically after 1
second approximately for data to be input again
112 Set or key to move the symbol on the GPS screen to the front of SET WAYPOINT then press ENT to
confirm The SET WAYPOINT screen will appear as this function you can enter the positions that you want to approach
and the position of your destination You can then display the and speed from your current position to the note that you cannot input the waypoints
more than 50 the input will be Longitude and Latitude with the numeric keys on the you move the cursor to N and E press 0 on the microphone to
convert Longitude and Latitude to S and W
You can name each waypoint position If you do not name the the default setting will be counting from WPT01 The
maximum number of name character is 10
Page 37
Operation Manual S15
If need enter the next waypoint press ENT key or press CLR key to
return back to GPS NAVIGITION setting screen
113 Review Waypoint
To review the waypoint position press or key to move the symbol
on the GPS NAVIGATION setting screen to front of WAYPOINT
OVER VIEW then press ENT key to confirm the REVIEW will appear as symbol or on the screen indicate that there are more waypoints
at the front or back of the page Use or key to review waypoint with symbol is the current waypoint When vessel
passes close to this waypoint the next waypoint automatically becomes
the current waypoint
If you want to change a waypoint to become the current waypoint press
or key on the mike keypad to move the symbol on the screen to
front of it then press ENT key to Navigation View
To enter to NAVIGATION view screen press or key to move
symbol on the GPS NAVGATION SETTING screen to front then press ENT key
Page 38
Operation Manual S15
The NAVIGATION VIEW screen can indicate
1 Current position of the vessel A
2 Current position of activated waypoint B
3 Current activated waypoint number WPT NUM
4 Total way point number TOL NUM
5 Current waypoint name WPT NAME
6 COG Course Over Ground SOG Speed Over Ground
BTW Bearing To Waypoint DTW Distance To screen is as S15 is not connected to GPS antenna the point A will indicate NO
GPS and the values of COG SOG BTW and DTW will show zero
If the selected waypoint position is not existent or invalid the point B will
indicate waypoint fail and the values of COG SOG DTW and BTW will
show zero
The combination of information in Navigation View is very useful for the
user to know information both of their current position and Page 39
Operation Manual S15
When vessel gets to the current waypoint the next numerical becomes the current waypoint As long as waypoints are
entered in a strict numeric sequence this allows a simple route to Insert or key to move symbol on the GPS NAVIGATION screen
to front of INSERT WAYPOINT then press ENT key the screen will appear on the display as you insert a new waypoint between waypoint 1 and waypoint 2
an example the new waypoint will become waypoint 2 The numbers of
subsequent waypoints will be moved downward the inserted waypoint number then press ENT key the SET
WAYPOINT screen will appear on the display as below
If you want to insert the new waypoint after current waypoint then the
INSERTED WAYPOINT number will be replaced as the current Page 40
Operation Manual S15
Enter position of the inserted waypoint and name then press ENT Delete or key to move symbol on the GPS NAVIGATION screen
to front of DEL WAYPOINT then press ENT KEY to confirm the DEL
WAYPOINT screen will appear on the display as the waypoint number you want to delete then press ENT key to
confirm Press ENT key to delete the Longitude and Latitude and Name
of the waypoint After deleted the screen will ask Are You Sure If you
press ENT again the data will be erased forever This screen will
appear as below
Page 41
Operation Manual S15
12 Technical supply DC 12 V capability 57 international channels
UK includes M1 previously 37 and M2
Frequency Resolution 25KHz
Method of frequency generation 175W 79H 130D mm
Weight 1175 grams
121 Channel Receiver
1 The receiver incorporates a dual conversion design
2 Tuning frequency range IF frequency used 214MHz 455KHz
4 Maximum useable sensitivity 6dBemf of 20dBSINAD
5 Adjacent Channel selectivity 70dB
6 Spurious Response Rejection 70dB
7 Rejection 68dB
8 Spurious Emission radiation 2nW
9 Current 09 Amps Max Audio
03 Amps STBY
10 Audio Frequency Response 1 3dB of 6dBoctave
Deemphasis Hum and Noise 40dB
12 Audio output 35W at less than 10 distortion
with 8 Ohm external speaker
2W only internal speaker
Page 42
Operation Manual S15
122 CHANNEL 70 MONITOR GENERAL CH70 0dBEMF for 20dB 16KHz
4 First IF frequency used 179MHz
5 Second IF frequency used 455KHz
6 Adjacent Channel Selectivity 70dB
7 Spurious response Rejection 70dB
8 Rejection 65 dB
9 Mode of Reception 16K0G2B
10 Spurious Emission Radiation 2nW 9KHz to 2GHz
123 of emission range power 25W 1W into 50 Ohms
4 Audio Harmonic Distortion 10
5 Audio Frequency Response 3dB of 6dBoctave
Preemphasis 300 3000Hz
6 Hum and Noise 40dB
7 Frequency Deviation 5KHz max peak
8 Spurious Emissions Radiated 025W
9 Current 5 Amps 25W
124 stored 60
2Input data format NAVTEX dataserial ASCII at 9600 baud 8bits no
parity stop bit without GPS
1Input data format NMEA0183 version 20 sentences
RMC GGA and GLL
Page 43
Operation Manual S15
13 International VHF Marine Channel Chart
Function
Transmitter Receiver Mode Ship Ship
Channel Channel Assignment To To
Frequency Frequency SD
Ship Shore
1 156050 160650 D Public Port Operation YES YES
2 156100 160700 D Public Port Operation YES YES
3 156150 160750 D Public Port Operation YES YES
4 156200 160800 D Public Port Operation YES YES
5 156250 160850 D Public YES YES
6 156300 156300 S Safety Compulsory YES NO
7 156350 160950 D Port Port Operation YES YES
8 156400 156400 S Commercial intership YES NO
9 156450 156450 S YES YES
10 156500 156500 S Commercial YES YES
11 156550 156550 S Commercial VTS YES YES
12 156600 156600 S Port Operation VTS NO YES
13 156650 156650 S Bridge to Bridge 1W navigational YES YES
14 156700 156700 S Port Operation VTS YES YES
15 156750 156750 S Recv OnlyCoast to Ship YES YES
16 156800 156800 S Calling Safety Compulsory YES YES
17 156850 156850 S State Controlled Ship to Coast 1W YES YES
18 156900 161500 D Port Operation YES YES
19 156950 161550 D Port Operation NO YES
20 157000 161600 D Port Operation NO YES
21 157050 161650 D Public NO YES
22 157100 161700 D Public NO YES
23 157150 161750 D Public NO YES
24 157200 161800 D Public 25 157250 161850 D Public 26 157300 161900 D Port Operation
27 157350 161950 D Public Port Operation
28 157400 162000 D Public Port Operation
60 156025 160625 D Public Port Operation
61 156075 160675 D Public Port Operation
62 156125 160725 D Public Port Operation
63 156175 160775 D Public Port Operation
64 156225 160825 D Public Port Operation
65 156275 160875 D Public Port Operation YES YES
66 156325 160925 D Public Port Operation YES YES
67 156375 156375 S VTS YES NO
68 156425 156425 S YES YES
69 156475 156475 S YES YES
70 156525 S DSC Distress urgency safety and YES NO
71 156575 156575 S Intership Port Operation on YES YES
72 156625 156625 S l
YES NO
73 156675 156675 S Port Operation VTS YES YES
74 156725 156725 S Port Operation VTS YES YES
77 156875 156875 S Intership Port Operation YES NO
78 156925 161525 D Port Operation Public YES YES
79 156975 161575 D Port Operation Public YES YES
80 157025 161625 D Port Operation Public YES YES
81 157075 161675 D Port Operation Public YES YES
82 157125 161725 D Port Operation Public YES YES
83 157175 161775 D Port Operation Public YES YES
84 157225 161825 D Public YES YES
85 157275 161875 D Public NO YES
86 157325 161925 D Public NO YES
87 157375 157375 S
88 157425 157425 S
Page 44
Operation Manual S15
14 141 Unit The S15 should be sited so that engine noise and vibration or other
background noise does not make it difficult for the operator to hear
It is recommended that it is not installed where it will be exposed to
continuous direct sunlight as this will eventually damage the LCD display
As loudspeakers contain powerful magnets the radio should not be
installed within 1m 3ft 3in of any compasses whether magnetic or
electronic
The fins on the back of the case act as a heat sink to dissipate heat
generated by the set when in use which maintains the high efficiency of
the radio The free circulation of air is essential if mounting the radio is
in an enclosed space ensure that the space is vented
The S15 is supplied with a reversible mounting bracket This can be used
to mount the radio on the chart table or on an overhead bulkhead Fig A
Before installing ensure that there is at least 101mm 40 in verticals
clearance and 70mm 2 34in horizontal clearance behind the bracket to
allow the radio to fit Fig B The rake angle of the radio can be adjusted
by slackening the clamp
Fig A
Fig C
Fig B
Page 45
Operation Manual S15
On the back of the case of S15 there is a antenna socket a power cable
socket and a jack socket for an external speaker the GPS input and
NAVTEX input Fig D
Fig D
The S15 requires a 12v DC supply to operate this lead should be connected
to the vessels power supply the red wire is positive black is the cable runs as short as possible Although the radio draws very
little current when receiving a heavier current is drawn when may result in a voltage drop if very long cable runs are used of
inadequate core diameter If the supplied power lead is not long enough an
extension of up to 3m10 ft can be made using at least 25mm chassis of the S15 is not connected to either supply rail This allows a
direct connection to the ships earth connection for voltage and RF The red wire is positive and black is negative If polarity reversed the set will
not operate
The antenna is connected to the S15 using a standard PL259 type connector
as fitted to most marine antennae If fitting to an existing antenna check that
the contacts are not corroded before connecting as this will affect the quality
of the signal Ensure that the retaining collar of the antenna plug is to prevent accidental Antenna Installation most important factor in the
performance of the S15 will be the quality
and positioning of the antenna Most recorded problems with VHF radios are
related to poor antenna siting faulty cabling poor quality cable joints and low
voltage supply Even the best performing radio cannot compensate for If replacing an existing installation using the same antenna it is
important that these factors are checked when installing the radio
Page 46
Operation Manual S15
As the range of VHF signals are governed by line of sight the be placed as high as possible while remaining clear of any
metallic objects that could influence the resonance of the antenna
The most popular antennae for marine use are 1m 3ft 3in long On sail
boats these are usually mounted at the masthead where the length of
the antenna keeps it clear from the navigation lights and wind vanes etc
This type of antenna can also be mounted on the cabin roof or radar arch
on whip antennae are recommended for larger boats These radiate
the same total power as smaller antennae but concentrate it into a
narrower beam which is advantageous on a tall mast at extreme range
where concentrating the available power into a narrow horizontal beam
becomes more important However if the antenna is not vertical the beam will be angled either too high or too low Fig E
Here the wider beam of the shorter antenna will be more although the signal will be weaker Fig F
Fig E Fig F
Therefore vessels with a large heel angle small sailboats would be
better choosing a short masthead antenna Your local agent should be
able to provide specific advice on antenna choice for the vessel it is to be
fitted to
The antenna coaxial cable and any connectors used must be rated at 50
Under no circumstances should standard domestic TV cable be used Incorrectly rated cabling and connectors could result
in power not reaching the antenna but also power could be into the radio damaging it in the process
Page 47
Operation Manual S15
15 Supplied Parts
1 Mounting Bracket 7 Power Cord 1
2 Microphone Hanger 1 8 Mounting Bracket Washer 4
3 Bracket Knob Washers 2 9 Hanger Spring washer 2
4 Mounting Bracket Knobs 2 10 Mounting Bracket Screws 4 Plug cord 1
6 Mic Hanger Screws 2 11 Thermoshrink Tube 4
4 7
5 9
3 10
16 warrants this product against manufacturing defects or malfunction in material for two 2 years from the date of original purchase The remedies
given under the
warranty will be available so long as the consumer can show in a reasonable manner that defect or malfunction in materials or workmanship occurred
within two year of the
date of original purchase Proof of the date of purchase may be established by returning copy of
original sales invoice or any other proof of purchase to us Any manufacturing defect in materials or workmanship which occurs within two years from
the date will be repaired without charge or replaced with a new product identical or
reasonably equivalent to this product at Silvas option within a reasonable time after receipt of
the product This Warranty does not however cover defects or damage caused by or services nor does it cover damage through accident or misuse
including failure to
provide reasonable and necessary maintenance in accordance with the instructions set forth in
your owners manual Silva reserves the right to make changes or improvements in its products
from time to time without incurring the obligation to install such improvements on expenses for repairs are the of the
Page 48
Operation Manual S15
17 Declaration of Conformity
We Silva UK Ltd of Fleming Road
Kirkton Campus Livingston
EH54 7BN SCOTLAND
declare that the product identified below complies with the essential
requirements of Council Directive 9905EC according to the conformity
assessment procedure laid down in Annex IV of the Directive
QINETIQ statement of opinion QQRTTE 220201
Product
Silva S15
25 Watt Marine Band Class D For fit use only
The product is labelled with the CE conformity marking and the
number of the notified body consulted in the conformity
assessment procedure
Applicable Standards EN301025
EN609451997 clauses 9 10 12
ETS Livingston 1st December 20002
Mr A Kent Managing Director
Page 49
Operation Manual S15
0191
Page 50

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