Simrad Axis 50 GMDSS User manual

MAXIMIZING YOUR PERFORMANCE AT SEA

Instruction Manual

III

E03766 Issue 2.0

Simrad HT50/HT51

Axis 50 GMDSS

Handheld VHF Radios

MANUAL

The technical data, information, and illustrations contained in this publication were to the best of our knowledge correct
at the time of going to print. We reserve the right to change specifications, equipment, installation, and maintenance
instructions without notice as part of our policy of continual development and improvement.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, electronic, or other­wise, without prior permission from Simrad Ltd. No liability can be accepted for any inaccuracies or omissions in the pub­lication. Although every care has been taken to make it as complete and accurate as possible.

Part No. E03766 Issue 2.0 22-Feb-05 CR

© 2005 Simrad Ltd

IV

HT50/HT51/Axis 50 GMDSS

V

E03766 Issue 2.0

1 GENERAL

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 OPERATION

2.1 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Selecting secondary channel sets . . . . . . . . . . . . . . . . . . . . 11

2.3 Disable/enable key beep . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.4 Keypad lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5 Removing and attaching the battery . . . . . . . . . . . . . . . . . . 12

2.6 Charger options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.7 Charging of batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8 Battery level indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.9 HT51 accessory socket . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3 APPENDIX

3.1 Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 Transmission range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.4 Channel frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.5 Battery life guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.7 Spares & accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.8 Technical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.9 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.10 Service & Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Instruction Manual

1 GENERAL

1.1 Introduction

The Simrad waterproof handheld VHF range comprises three
models:

• The HT50 VHF radio is designed for leisure and light com­mercial use, and meets or exceeds stringent International
Regulations EN301-178.

• The HT51 model has all the features of the HT50, but
includes an accessory socket for use with fistmikes, headsets,
and other third party accessories.

• The Axis 50 model for GMDSS convention vessels con­forms to Pan European specification ETS300-225 for the use
of radios for Safety at Sea.

All models are waterproof to IP67 standard.

Please note that regulations vary from country to country.
Simrad sets are approved specifically by the countries in which
they are sold. Consequently, there may be differences in the
programming of sets bought in different countries and, there­fore, in their associated manuals. If using the radio outside the
country of purchase, it is vital to check that the set conforms to
local regulations before use.

Thank you for choosing Simrad!

If you are pleased with your radio, we hope you will be inter­ested in our range of marine electronic equipment, which is
manufactured to the same high standards as the HT50. Please
contact your nearest Simrad Agent for a catalog showing our
increasing range of high tech navigational instruments, autopi­lots, and VHF radio sets.

Simrad operate a policy of continual development and reserve
the right to alter and improve the specification of their products
without notice.

Axis®is a registered trademark of Simrad Ltd.

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HT50 waterproof

handheld VHF

HT50/HT51/Axis 50 GMDSS

8

E03766 Issue 2.0

2 OPERATION

2.1 Controls

The location of the controls for the HT50 are shown in Fig 2.1.

Functions:
1 On / Off

2 High / Low power, Keypad lock
3 PTT (Push-To-Talk button)
4 Volume mode select
5 Squelch mode select
6 Up key
7 Down key
8 Scan mode
9 Dual Watch / Tri-Watch
10 Select Priority / Personal channel
11 Backlight On / Off & Light mode select

Fig 2.1 - HT50 controls

1 2

3

4

6

8

10

5

7

9

11

Hold

during

Power Up

Select secondary

channel set*

Disable / enable

first key beep

*If available

Press & hold

Triple

Beep

Inhibit / enable

selected channel

from scan

Set Personal

channel

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Pressing and holding certain keys will access additional func­tions. These are indicated by a double beep, or a triple beep if
held for longer (Table 1).

Key

VOL

SQ

▲

▼

SCAN

D/W

16

Hi/Lo

Press

1x

Select Volume mode

Select Squelch mode

Standard mode

Channel Up / Down

Volume mode

Volume Up / Down

Squelch mode

Squelch Up / Down

Light mode

Light level Up / Down

Memory Scan

Dual Watch

Select channel 16

Select Light mode

Backlight On/Off

Select 1 or 5 Watts

Press

2x

Add / delete

channel from

Memory Scan

Press & hold

Double

Beep

Scan All Channels

Tri-Watch

Select Personal

channel

Engage / disable

keypad lock

Table 1 - Additional functions, overview

On/Off (1)

Press to turn the HT50 on. To turn the radio off, press and
hold the key for approximately 2 seconds. This is to avoid acci­dental power off.

Hi/Lo (2)

Toggles between high and low transmit power (see specification
section 3.8). Use the low setting over short ranges to preserve

battery power.

VOL – Volume (4) & SQ – Squelch (5)

Press to select Volume or Squelch mode then use the ▲ and ▼
keys to adjust the level.

The display shows “VOL” or “SQL” for 3 seconds – if ▲ or ▼
are not pressed within this time, their function reverts to channel
select.

▲ / ▼ (6 & 7)

These keys will change the selected channel. Pressing VOL,
SQ, or , then

▲/▼ within 3 seconds will adjust the volume,

squelch, or backlighting level respectively. The bargraph will
indicate the level selected.

SCAN mode (8)

Scans through the channels stored in the channel memory (dis­play shows “MEM SCAN”).

• Select channel and press twice to add to/delete from Mem­ory Scan (display shows “ENT” or “DEL” respectively).

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a

b

c

d

f

g

i

e

Fig 2.2 - HT50 display functions

a Bar graph –

Power up Battery level
Standby Battery level
Transmit Battery level
Volume mode Volume level
Squelch mode Squelch level

pressed Backlight level

b Personal channel indicator
c Channel selected
d Receiving or transmitting indicator
e High or Low power indicator
f Function indicator
g Selected channel stored in memory
h Channel inhibited from scan
i Scan mode selected

h

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• The icon indicates that the selected channel is included
in Memory Scan.

• Press and hold until double beep sounds to scan all chan­nels (display shows “SCAN”).

• Press and hold until triple beep sounds to inhibit/enable
selected channel from scan (display shows “INH” or “ENA”
respectively). The icon indicates the channel is inhibited.

D/W - Dual Watch & T/W – Tri-Watch (9)

• Press to select Dual Watch of selected channel and Ch16
(the display shows “D/W”).

• Press and hold until double beep sounds for Tri-Watch –
selected channel, personal channel, and channel 16 (the dis­play shows “T/W”).

16 - Channel 16 / Personal Channel (10)

• Press to select channel 16.

• Press and hold until double beep to select personal channel
(display shows ).

• Press and hold for three beeps to set selected channel as
the personal channel.

- Backlight (11)

• Press to turn on and off. Use ▲/▼ to adjust the backlighting
level (5 levels available). The bargraph indicates the back­lighting level.

• The battery save function turns the backlighting off if no key
is pressed after 20 seconds. Press any key (except or ) to
turn the light on again.

2.2 Selecting secondary channel
sets

In countries where it is permitted, holding VOL down while
turning the radio on will enable the radio to operate on a
secondary set of channels (Fig 2.3).

Where the display will normally show “INT” (International
channel set) on the bottom line, this will show “USA” for USA
channels, “CAN” for Canadian channels, etc.

• Channel sets available will depend on which country the
radio is programmed for use in. This function will only be

available if permitted in the country of purchase (for details
refer to sections 3.1 and 3.4).

• The radio will revert to International channels if it is
switched off, then on again.

Keep VOL pressed

Fig 2.3 - Selecting alternative

channel sets

2.3 Disable/enable key beep

The HT50 beeps every time a key is pressed to confirm opera­tion. To disable the key beep, press and hold SQ while turning
the set on. Repeat this procedure to turn the key beep on again.

Second level functions (such as All Channel Scan, Tri-Watch,
etc.) will still be indicated by a beep, even if the key beep is
disabled.

2.4 Keypad lock

The HT50 keypad can be locked to prevent accidentally press­ing keys while in a pocket, etc.

To lock the keypad, press and hold the Hi/Lo key. The HT50
will beep twice and any key pressed will not function – “LOCK”
will appear in the display. To disengage the keypad lock, press
and hold Hi/Lo again.

Note The PTT key will still function when the keypad lock is on,

allowing transmitting and receiving as normal.

Note This function is not available with the Axis 50 GMDSS models

(yellow case).

2.5 Removing and attaching the battery

The HT50 is supplied with a 1200mAh NiMH battery (part no.
NH12). The Axis 50 GMDSS radio has two battery options: an
850mAh NiCad (NC08) or a non-rechargeable Lithium battery
(LTB3).

The batteries are supplied with a label across the contacts to
prevent accidental discharge while in the box. This label should
be removed before use.

To remove the battery, lift the two locking clips holding the
battery pack in place (Fig 2.4). When reattaching, ensure the
two locating pegs on the top of the battery are located into the
slots in the radio and that the two locking clips have both
engaged.

The set is fully waterproof, even with the battery removed, but it
is recommended that any moisture on the top of the battery or in
the battery compartment is wiped clear before attaching, to pre­vent the water creating a conductive path between the contacts
and reducing battery life.

Note Axis 50 batteries cannot be used with an HT50, and vice versa.

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Fig 2.4 - Battery pack removal

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2.6 Charger options

The HT50 is supplied with a TC50 trickle charger that will
accept the whole radio or the battery only. The TC50 runs from
a 12.6V–15.5V DC supply or from AC mains with an appropri­ate optional adaptor/power supply. Charging with the trickle
charger takes approximately 12–16 hours. There is also a rapid
charger available (RC50) which will charge the battery within
1

1

/

2

hours.

2.7 Charging of batteries

To charge the NiCad and NiMH battery packs, insert the battery
or radio into the charger ensuring that any moisture is wiped
from the contacts on the back of the battery pack. The TC50
will trickle charge the battery to full capacity (Fig 2.5). The
RC50 will rapid charge the battery until it is fully charged and
will then automatically switch to maintenance charge.

• Note that batteries are supplied uncharged and must be
fully charged before use.

• Fully charge the battery when not in use, though it may
lose some of its charge after several months of storage.

• Do not charge at temperatures below 0ºC or above 40ºC.

• Turn off radio when charging the battery.

• Regularly discharge the battery totally – repeated recharg­ing of the battery while it is only partly discharged may cre­ate a ‘memory effect’, preventing it reaching full charge.

• Dispose of used batteries carefully. The contents of the bat­teries could be harmful to the environment.

• Never expose to a naked flame.

Caution The LTB3 Lithium battery is not rechargeable and under no

circumstances should any attempt be made to recharge it.

Replacement batteries can be ordered from your local
Simrad Agent.

2.8 Battery level indicator

Except when adjusting the Volume or Squelch level, the bar
graph on the display shows the battery charge level (Fig 2.6).
This indicates the voltage at the battery terminals, not necessar­ily the charge stored. Ten or nine bars indicate a fully charged
battery, three or four bars mean the battery is almost drained.

A more accurate indication of the battery state will be obtained
by transmitting briefly on high power. Do not use Ch16 for

this purpose.

Fig 2.5 - Battery charger

Fig 2.6 - Battery level indicator

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14

E04586 Issue 2.0

When using a lithium battery pack, the low-level battery indi­cator may flash under transmit conditions. This does not neces­sarily reflect the charge level remaining in the battery, as it is
due to the different voltage characteristics of a Lithium battery
pack under load.

2.9 HT51 accessory socket

The HT51 features an accessory socket (Fig 2.7) for use with
fistmikes, headsets, and boom-mikes, etc. The features, func­tionality, and operation of the HT51 are identical to the HT50.

Only accessories made specifically for use with the HT51
should be connected – incompatible accessories could damage
the radio and invalidate the warranty.

Switch off the radio before connecting an accessory to the
socket.

Note that the HT51’s internal speaker, microphone, and PTT
button are disabled when the accessory is connected – these
functions are transferred to the accessory.

For details of compatible accessories available, please contact
your Simrad Distributor or the Simrad Preferred Supplier:

Atlantic Instruments
The Coach House
Trefor
Holyhead
Anglesey LL65 1LZ
United Kingdom

Contact:
Charles Mortlock
Mobile: [phone]
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Website: www.atlanticuk.com

Fig 2.7 - HT51 with

accessory socket

3 APPENDIX

3.1 Licensing

Note Prior to use please check the national licensing requirements

for operators.

In the UK license applications and queries should be made to
the following authority:

Ship Radio Licencing
Radio Licencing Centre
The Post Office
P.O. Box 1495
Bristol BS99 3QS
Website: www.radiolicencecentre.co.uk/rlc

A set may only be operated by or under the supervision of the
holder of a Marine Radio Operator’s Certificate of Competence
and Authority to Operate. This is awarded on completion of the
Marine Short Range Certificate course administered by the Royal
Yachting Association:

Royal Yachting Association
RYA House
Ensign Way
Hamble
Southampton SO31 4YA
Website: www.rya.org.uk
Tel. [phone]

Holders of the Restricted Certificate of Competence in Radio­telephony (which covers MF/HF SSB, etc.) do not need a sepa­rate VHF certificate.

In all other countries, please contact your regional authority for
information.

WARNING North American Users – FCC* regulations require

that members of the general public should not be
exposed to excessive levels of radio frequency
radiation. To comply with the specified limits it is
recommended that this radio is operated in such
a manner as to limit transmission to no more
than five minutes in any half hour period and that
the antenna is kept at least 8 in (20 cm) from any
part of the body during transmission.

*Federal Communications Commission

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HT50/HT51/Axis 50 GMDSS

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3.2 Antenna

The antenna for the radio is fitted to the unit via a robust screw
fitting to an M6 threaded socket on the top of the radio. This
system is more rugged than a traditional BNC connector, so the
radio’s drop-proof integrity is not compromised by the antenna
fixing. While the radio is drop-proof and very robust, damage
to the antenna such as bending or kinking may adversely affect
the transmission efficiency of the unit, which may lead to over­loading of the power module. Damaged antennas should be
replaced immediately.

➞

Replacement antennas can be obtained from authorized

Simrad Agents. Please refer to section 3.7 for more details.

3.3 Transmission range

Because VHF signals travel in a straight line and are not
reflected back off the ionosphere as lower frequency signals are,
the range of VHF signals is limited to ‘line of sight’, beyond
which the other vessel passes behind the curve of the Earth.
Therefore, the range will increase greatly the higher above sea
level the antenna is positioned, as Fig 3.1 illustrates (assuming
maximum transmission power is used):

The typical range of a handheld radio such as this one used at
sea level will be approximately 8 km (5 miles). This will increase
as height above sea level increases, or if the other radio user’s
antenna is at a greater height – note that the range between the
yacht with the antenna mounted on a 9 m (30ft) mast and the
handheld user increases to 13–16 km (8–10miles).

Fig 3.1 - Transmission ranges

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3.4 Channel frequencies

Note Ch 0 will only be made available in the UK to Coastguard

users with written authorization.

Ch 70 is restricted for DSC (Digital Selective Calling) use only
and is therefore not available on the HT50 or Axis 50 VHF
radio. Axis 50 GMDSS models are fitted with simplex channels
only.

BATTERY PACK Typical life of fully charged pack at 25°C

Duty Cycle Ai Duty Cycle Aii Duty Cycle B

850mAh NiCad 9 hrs 12 hrs 5 hrs

1200mAh NimH 12 hrs 20 hrs 7 hrs

HT50/HT51/Axis 50 GMDSS

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3.5 Battery life guidelines

New batteries should be fully (trickle) charged and fully dis­charged several times to achieve full capacity.

To a large extent, the battery life will depend on the usage, or
Duty Cycle, of the radio (Tables 2 and 3), i.e. the battery will
be drained much quicker if the radio is transmitting continually
than if it is just receiving. Additionally, if the radio is set to
High power (5 Watts*), the power drain will be considerably
greater than if transmitting on Low power (1 Watt*).

*Standard power settings

Ai Based on - 5% Transmit at 5 Watt setting of r.f. output power (1.4 Amp)

5% Receive at 200 mWatts Audio (0.15 Amp)
90% Receiver squelched (0.02 Amp)

Aii Based on - 5% Transmit at 1 Watt setting of r.f. output power (0.8 Amp)

5% Receive at 200 mWatts Audio (0.15 Amp)
90% Receiver squelched (0.02 Amp)

B Based on - 10% Transmit at 5 Watts setting of r.f. output power (1.4 Amp)

10% Receiver at 250 mWatts Audio (0.15 Amp)
80% Receiver squelched (0.02 Amp)

Table 2 - Battery life values predicted from calculation:

BATTERY PACK Duration

At 25ºCAt 45

º

C

850mAh NiCad Up to 50% charge 4–6 months 4 weeks
1200mAh NimH Up to 50% charge 4 months 4 weeks

Table 3 - Battery charge held while stored

The following data is approximate:

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3.6 Troubleshooting

These simple checks should be carried out before seeking tech­nical assistance and may save time and expense.

Before contacting your servicing agent please obtain the radio’s
serial number and the software iteration – this is shown in the
large digits on the display for 2 seconds after the radio is turned
on.

Symptom Possible cause Remedy

Unit will not switch on • Battery not charged • Re-charge battery

• Battery not attached correctly • Ensure battery is fully
to radio engaged (see section

2.5)

Scan or Memory Scan • Noise on the channel is • Increase squelch level
is locking on a channel holding the scan • Inhibit channel from
without a signal scan

Dual Watch not being • Priority channel selected • Select a working
entered (normally channel 16) channel

Cannot change channel • Dual Watch (D/W) engaged • Exit Dual Watch

Certain channel numbers • Some channels are restricted • Consult your national
are not obtainable and programmed depending authority for permitted

on country of purchase channels in your region

Will not transmit • Scanning or D/W function active • Exit D/W or scan

Will not transmit on 5W • Low voltage when full transmit- • Battery charge low –
but OK on 1W ting current is drawn recharge the battery

• Some channels are restricted to • Consult your national
low power transmission only authority

Transmissions are • Damaged antenna • Replace antenna
persistently weak

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3.7 Spares & accessories

The following spares and accessories are available from author­ized Simrad Service Agents. Please quote the relevant part
number when ordering.

ANT3

Spare Antenna

Axis 50 GMDSS Batteries –

NC08

850 mAh NiCad Battery Pack

LTB3

Lithium Battery Pack

(Non-rechargeable)

HT50 Batteries –

NH12

1200 mAh NimH Battery Pack

TC50

Trickle Charger

RC50

Rapid Charger

MAT50:U (UK)
MAT50:E (Europe)
MAT50:A (USA)

Mains Adaptors for TC50

MAR50:U (UK)
MAR50:E (Europe)
MAR50:A (USA)

Mains Adaptors for RC50

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3.8 Technical specification

Channel capability . .54 international channels 1–28, 60–69, 71–88

. . . . . . . . . . . . . . . .Up to 10 private channels*

. . . . . . . . . . . . . . . .UK : includes M (previously 37) and M2

. . . . . . . . . . . . . . . .USA : includes 0, 29, 89, 75, 76, Wx1–10 receive only

. . . . . . . . . . . . . . . .Scandinavia : leisure or fishing channels as appropriate

. . . . . . . . . . . . . . . .Canada : Canadian and USA channels

GMDSS sets have simplex channels only: 06, 08–17, 67–69, 71–74, 77

Frequency range . . . . . . . . . . . . . . . . . . .155–163 MHz

Operating temperature range . . . . . . . . . .-20ºC to +60ºC

Output power . . . . . . . . . . . . . . . . . . . . . .HT50/HT51 – 1 & 5 Watts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Axis 50 GMDSS – 1 & 2.5 Watts

Harmonic and spurious emissions . . . . . .<.25µW Tx, <1nW Rx

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . .0.5µV for 20 dB SINAD

Selectivity . . . . . . . . . . . . . . . . . . . . . . . .70 dB (±25 kHz)

Intermodulation . . . . . . . . . . . . . . . . . . . .70 dB

Channel spacing . . . . . . . . . . . . . . . . . . .25 kHz

Blocking . . . . . . . . . . . . . . . . . . . . . . . . .90 dB

Spurious response . . . . . . . . . . . . . . . . . .70 dB

Audio output power . . . . . . . . . . . . . . . . .Max 0.4 Watts

Current consumption . . . . . . . . . . . . . . . .Squelched <25mA

Receive . . . . . . . . . . . . . . . . . . . . . . . . . .typically 125mA

Transmit . . . . . . . . . . . . . . . . . . . . . . . . .5 Watts . . 1.4A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Watt . . . 0.8A

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . .400 g including battery pack

* Contact your local Simrad Agent for further details of channel programming, etc.

Environmental

Waterproof . . . . . . . . . .To a depth of 1 m (3ft) fully submersed, including a

. . . . . . . . . . . . . . . . . . .45ºC thermal shock; complies with IP67 standard

. . . . . . . . . . . . . . . . . . .Will withstand petrol, diesel and other fuel oils

Drop resistance . . . . . . .Will withstand a drop from 1m on to a hard surface

68 mm (2.7 in)

80 mm (3.2 in)

145 mm (5.8 in)

42 mm (1.7 in)

320 mm (12.8 in)

70 mm (2.8 in)

96 mm (3.8 in)

HT50/HT51/Axis 50 GMDSS

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E03766 Issue 2.0

3.9 Declaration of Conformity

English Hereby, Simrad Limited (Margate) declares that this HT50/HT51 is in compliance

with the essential requirements and other relevant provisions of Directive 1999/5/EC.

Finnish Simrad Limited (Margate) vakuuttaa täten että HT50/HT51 tyyppinen laite on

direktiivin 1999/5/EY oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen
mukainen.

Dutch Hierbij verklaart Simrad Limited (Margate) dat het toestel HT50/HT51 in overeen-

stemming is met de essentiële eisen en de andere relevante bepalingen van richtlijn
1999/5/EG.

French Par la présente, Simrad Limited (Margate) déclare que ce HT50/HT51 est conforme

aux exigences essentielles et aux autres dispositions de la directive 1999/5/CE qui lui
sont applicables.

Swedish Härmed intygar Simrad Limited (Margate) att denna HT50/HT51 står in överens-

stämmelse med de väsentliga egenskapskrav och övriga relevanta bestämmelser som
framgår av direktiv 1999/5/EG.

Danish Undertegnede Simrad Limited (Margate) erklærer herved, at følgende udstyr HT50/

HT51 overholder de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.

German Hiermit erklärt Simrad Limited (Margate), dass sich dieses HT50/HT51 in Überein-

stimmung mit den grundlegenden Anforderungen und den anderen relevanten
Vorschriften der Richtlinie 1999/5/EG befindet. (BMWi)

Greek Με την παρουσα Simrad Limited (Margate) δηλωνει οτι HT50/HT51 συµµορ−

φωνεται προς τις ουσιωδεις απαιτησεις και τις λοιπες σχετικες διαταξεις της
οδηγιας 1999/5/ΕΚ.

Italian Con la presente Simrad Limited (Margate) dichiara che questo HT50/HT51 è con-

forme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva
1999/5/CE.

Spanish Por medio de la presente Simrad Limited (Margate) declara que el HT50/HT51

cumple con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exi­gibles de la Directiva 1999/5/CE.

Portuguese Simrad Limited (Margate) declara que este HT50/HT51 está conforme com os

requisitos essenciais e outras provisões da Directiva 1999/5/CE.

Website – www.simrad.com

Instruction Manual

23

E03766 Issue 2.0

3.10 Service & Warranty

Your radio should seldom need servicing, although it will bene­fit from an application of silicone or Teflon grease to the battery
contacts and antenna socket each season. For the HT51 only,
please ensure the accessory connector is regularly greased.

This unit is guaranteed for 2 years from date of retail sale. If it
is necessary to have the unit repaired, return it carriage prepaid
to the agent in the country of purchase with a copy of the
receipted invoice showing the date of purchase. Where possible,
return all the components, unless you are certain that you have
located the source of the fault. If the original packing is not
available, ensure that it is well cushioned in packing; the rigors
of freight handling can be very different from the loads encoun­tered in the marine environment for which the unit is designed.

CAUTION The HT50, HT51, and Axis 50 are sealed waterproof units.

To create and maintain their waterproof integrity, they were
assembled in a controlled environment using special equip­ment. The radios are not user maintainable units, and
UNDER NO CIRCUMSTANCES should the units be opened,
except by authorized Simrad Service Agents. Unauthorized

opening of the unit will invalidate the warranty.

For worldwide Warranty details, please refer to the Warranty
Card supplied with this unit.

MAXIMIZING YOUR PERFORMANCE AT SEA