Sailor A1 VHF-DSC, A1 Basic VHF Installation Manual

SAILOR A1

VHF-DSC/Basic VHF

Installation Manual

Introduction

S. P. Radio A/S

For more than half a century S. P. Radio A/S has been the market
leader within maritime radio communication.

SAILOR

The communication products and systems of S. P. Radio are
recognized under the brand name SAILOR. The Sailor name has
become a guarantee of reliable and technologically superior radio
equipment, ranging from basic VHF units to satellite systems and
complete compact GMDSS solutions.

Products

The SAILOR COMPACT 2000 GMDSS is based on the well proven
range of Sailor products specifically developed to meet the GMDSS
requirements and supported by a world-wide Certified GMDSS
service concept, giving several hundred reasons for shipping
companies to choose equipment manufactured by S. P. Radio A/S.
Today S. P. Radio A/S is recognized as the world’s leading supplier
of GMDSS solutions.
The SAILOR COMPACT 2000 GMDSS has already been and still is
constantly supplied to a large number of the world’s leading shipping
companies and national naval fleets. It is a complete GMDSS
solution which matches communication and safety needs exactly ­regardless of whether you operate with A1, A2, A3 or A4.
The System 4000 GMDSS sets new standards. It is constructed on
the basis of our comprehensive experience developing GMDSS
equipment. It satisfies all the relevant requirements regarding safety
and efficiency. The System 4000 presents a large number of
attractive convenience and safety facilities, either as a complete
solution or as a series of stand-alone products.
Sailor has a long history as a satellite communications supplier
offering a full programme of satellite systems which includes Mini M,
SAT-C and a number of stationary satellite systems. Our SAT-B is a
breakthrough in maritime aerial technology and reliability. The SAT-B
is the best possible choice when high quality speech transmission,
top level security and the capacity to deal with large volumes of
telex, fax, data and high-speed data (HSD) transmissions are required.

Training certification

Training of deck officers to meet the requirements within the concept
of GMDSS, as to operation of equipment and basic understanding of
the systems, is an extremely important factor for the overall success-

ful implementation of GMDSS. As a unique initiative for GMDSS
solutions, we can supply a complete software training programme for
on-board training, to be used as preparation in order to fulfil the
GMDSS requirements for obtaining the
General Operation Certificate.

Service

A world-wide Sailor GMDSS certified service concept has been
established in order to provide the shipping industry with a highly
professional and uniform level of service. The Sailor GMDSS
Certified Servide Centre concept, which is constantly monitored,
ensures that replacement units and spare parts are available at all
the Sailor Certified Service Centres around the world. Service
centres which are in position along all the major shipping routes.
Furthermore the Certified Service Centres ensure that technicians
with an annually updated training are ready to provide service 24
hours a day, 365 days a year.

Maintenance

Because of the fact that GMDSS equipment has been installed on
board ships in order to meet the SOLAS (Safety of Life At Sea)
convention, manufacturers and suppliers of GMDSS equipment have
a certain responsibility to secure reliable supplies of equipment and
spares in the years to come.
Therefore shipowners operating ships both locally and internationally
should be fully aware of the importance of fitting GMDSS solutions
which will be fully supported by the manufacturer .
It is a firm policy of S. P. Radio A/S, as the world’s major manufac­turer and supplier of GMDSS solutions, that for both the present
GMDSS solutions and for future, alternative product solutions, all
Sailor GMDSS systems will be entering the next century, in fully
parallel production.

Please note

Any responsibility or liability for loss or damage in connection with
the use of this product and the accompanying documentation is
disclaimed.
The information in this manual is furnished for informational use only,
is subject to change without notice, may contain errors or inaccura­cies, and represents no commitment whatsoever.
This agreement is governed by the laws of Denmark.

Doc. No.: M4800GB0 Issue: D/9949

1

RT4800/01

Contents

1 Technical Specification ..................................................................................................................................... 2

2 Installation .......................................................................................................................................................... 4

2.1 Mounting Possibilities........................................................................................................................................... 4

2.2 Power Supply ....................................................................................................................................................... 5

2.3 Aerial .................................................................................................................................................................... 5

2.3.1 Placing the Aerial(s) ............................................................................................................................................. 6

2.4 Options Connector Box H4992 ............................................................................................................................ 7

2.5 Cable Length ........................................................................................................................................................ 8

2.5.1 Power Cable ......................................................................................................................................................... 8

2.6 Electrical Connections.......................................................................................................................................... 8

2.6.1 Power Connectors................................................................................................................................................ 8

2.7 Compass Safety Distance.................................................................................................................................... 8

9949

2

Technical Specification

RT4800/01

1 Technical Specification

Conforms to all relevant international requirements and resolutions as agreed by ETSI, IEC, ITU, and IMO as well as
other national requirements. These specifications include ETS 300 162, ETS 300 338, IEC 945, IEC 1097-3 and IEC
1097-7.

General Information

Normal channels All int. ch’s for 25 kHz operation.

Up to 40 private channels.

Opt. channels All int. ch’s for 12.5 kHz operation.

Up to 224 ch’s with up to 54 private ch’s.
Channel spacing 25 kHz / opt. 12.5 kHz
Frequency range 150.8 MHz - 163.6 MHz.
Operating modes Simplex/Semi-duplex.
Modulation G3EJN for telephony receiver

G2B for DSC signaling
Frequency stability ±10 ppm/ opt. ± 5ppm
Aerial connectors Standard 50 ohm female, SO239
Temperature range -15°C to +55°C
Supply voltage 13.2 VDC Nominal
Supply range 10.8 VDC to 15.6 VDC
Supply current Stand-by 0.14 A

Transmitter on 1.5 A (Low power)

Transmitter on 5 A (High power)
Transceiver dimen. H*W*D 55*202*136mm.
Transceiver weight 1.3 kg

Receiver

Sensitivity for:
12 dB SINAD -119 dBm or 0.25µV p.d.
AF rated power
Output 1 4 W/ 4 ohms
Output 2 6 W/ 4 ohms
Distortion THD Below 5%
Signal/noise ratio Better than 40dB
AF response - 6dB/octave
Spurious emission Below 2nW
Spurious resp. att. More than 70dB

9915

3

Technical Specification

RT4800/01

Intermodulation att. More than 68dB
Blocking More than 90dBµV
Co-channel rejection Better than -10 dB
Adj. ch. selectivity More than 70dB

Transmitter

RF output power High 25 W + 0 dB to -0.5 dB

Low 0.9 W +0.5 dB to -1 dB
Adj. ch. power Below -70dBc
Spurious radiation Below 0.25µW
Cabinet radiation Below 0.25µW
AF response + 6dB/octave
Distortion Below 5%
Signal/noise ratio Better than 40dB

DSC Facilities:

DSC operation According to Rec. ITU-R M.541-6

and Rec. ITU-R M.689-2
DSC protocol According to Rec. ITU-R M.493-7 class D
Navigator interface NMEA 0183, GGA,GLL,ZDA

NMEA Input current 8mA type
Symbol error rate
below 1*10-2 at -119 dBm or 0.25µV p.d.
Modulation 1700 Hz ± 400 Hz

1200 baud ± 30 ppm
Frequency error Below ± 1 Hz
Residual DSC-mod. Below -26 dB

9926

4

Installation

RT4800/01

2 Installation

Mounting possibilities, dimensions and drilling plan.

2.1 Mounting Possibilities

Transceiver Unit

The transceiver unit is available in both a one- and a two-aerial version.
A one-aerial DSC transceiver can be converted into a two-aerial version (contact your dealer).
The drawing below shows a two-aerial transceiver unit:

35342

222.00

136.00

100.00

56.50

198.00

242.00

77.50 14.50

4 x ø4.00

OPTION SPARC-BUS

Weight:

Transceiver Unit 1.3 kg

WARNING:

Only use original screws; otherwise you risk short-circuiting the battery ground to the ship ground.

9949

5

Installation

RT4800/01

2.2 Power Supply

The standard power supply for the VHF unit is 12V DC.
For 24V DC supply an external power supply with the type number N420 can be used. The N420 is in
principle a 24V DC to 13.2V DC serial regulator.

For 110V AC, 127V AC, 220V AC or 237V AC operation, an external power supply with the type number
N163S must be used together with N420.

12 Volt
Battery

+

-

Battery

24 Volt

-

+

to

12 Volt

24 Volt

35344C

Battery

24 Volt

-

+

220 Volt

12 Volt

24 Volt

to

220 Volt

24 Volt

to

Fuse

The fuse is a standard 10A mini car fuse. There is a spare fuse in the power cable connector.

2.3 Aerial

The transceiver without DSC requires one aerial. The transceiver with DSC is available in both a one- and a two-aerial
version.
All common 50Ω aerials covering the used frequency range with a reasonable standing wave ratio, max. 1.5, can be
used.
Aerials are connected to the set by means of a 50Ω coaxial cable with low loss, e.g. RG213U. For each cable, two
PL259 plugs are used, one mounted at each cable end.

9949

6

Installation

RT4800/01

2.3.1 Placing the Aerial(s)

Aerials should be mounted in a place that is as high and clear as possible - like the “primary aerials” in the illustration
below. The horizontal distance to metal parts must be at least 1m.
When using two aerials, the primary aerial must be placed at a higher level than the channel-70 aerial:

9949

7

Installation

RT4800/01

2.4 Options Connector Box H4992

Options connectors

35350

NMEA_IN+
NMEA_IN-

-BAT

+12VDC

FAN_ON

RX_1_SQ

CH_AUX_1

CH_AUX_2

RX_1_AF

NMEA_OUT+
NMEA_OUT-

DSC_ALARM_ON

X1

14

15

13121110

X2

9876

54

1

32

To connect a GPS to the VHF transceiver, connect
the GPS signal lines to the options connector
pin_4 (NMEA_IN+) and
pin_5 (NMEA_IN-).

35379B

GPS H4992

X2

56.111

Alternatively the GPS can be connected directly
to the transceiver by means of a 15-pole high
density D-sub in the same pins as those
mentioned above.
Make sure to use the 15 to 15-pole adaptor
between the transceiver and the 15-pole high
density D-sub.
The two parts (part no. 78.775) are supplied
with the radio.

9915

Transceiver unit Twisted Option box

X2 Name pair X1,X2

pin 1 DSC_ALARM_ON 1
pin 2 NMEA_OUT+1 1 Optional
pin 3 NMEA_OUT-1 1 Optional
pin4 NMEA_IN+ 2 4
pin5 NMEA_IN- 2 5
pin 6 -BAT_0VDC 3 6
pin 7 +12VDC 3 7
pin 8 FAN_ON 8
pin 9 RX_1_SQ 9
pin 10 CH_AUX _1 10
pin 11 CH_AUX _1 11
pin 12 RX_1_AF 12
pin 13 N.C. 13
pin 14 N.C. 14
pin 15 N.C. 15

8

Installation

RT4800/01

2.5 Cable Length

The cable length specified below is the absolute maximum length.

2.5.1 Power Cable

Number Supply From To Wire mm2 Max. length

56.112 +12 volt BATTERY RT4800/01 2.5 1.5 metres
+12 volt BATTERY RT4800/01 5.0 3 metres

Note: The cable length from battery to N420 depends on the wire thickness, but the voltage at the cable end at N420
should not be less than 18 volt.

35355A

10

3 2 1

Spare 10A fuse

Pin no. Name Colour

Pin 1 SUPPLY_ON Blue *
Pin 2 +BAT Red
Pin 3 -BAT Black

* NB! The blue wire is only to be used in connection with N420.

2.6 Electrical Connections

2.6.1 Power Connectors

Power connector

Transceiver unit Name Battery N420
pin 1 SUPPLY_ON NC SUPPLY_ON
pin 2 +Battery, +12VDC + +12V
pin 3 - Battery, 0VDC - 0V

2.7 Compass Safety Distance

Unit Standard Steering
Transceiver 0.3 m 0.3 m
Handset 1.1 m 0.6 m
N420 0.6 m 0.3 m
N163S 1.2 m 0.7 m

9949