Simrad HT50, Axis 50 GMDSS, HT51 User Manual

ALWAYS AT THE FOREFRONT OF TECHNOLOGY

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Simrad HT50/HT51

Axis 50 GMDSS

Handheld VHF Radio

MANUAL

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Page 4

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 continuous 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.

11/11/03 MDL/CR

© 2003 Simrad Ltd

For service and advice please contact the main Simrad dealer in your country of residence.

E03766 Issue 1.5

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Page 5

CONTENTS

1. General

1.1 Introduction

2.

Operation

2.1 Controls

2.2 Selecting Alternative Channel Sets

2.3 Disable / Enable Key Beep

2.4 Keypad Lock

2.5 Removing and Attaching Battery

2.6 Charger Options

2.7 Charging of Batteries

2.8 Battery Level Indicator

2.9 HT51 Accessory Socket

3. Appendix

3.1 Licensing

3.2 Antenna

3.3 Transmission Range

3.4 Frequency of Channels

3.5 Battery Life Guidelines

3.6 Fault Finding

3.7 Spares & Accessories

3.8 Specification & Dimensions

3.9 Service & Warranty

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1 General

1.1 Introduction

The Simrad waterproof handheld VHF 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 also includes an accessory socket for
use with fitmikes, 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 also 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 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 catalogue 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 Trade Mark of

Simrad Ltd.

HT50 waterproof handheld VHF

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Fig 2.1 - HT50 Controls

1 2

3

4

6

8

10

2 Operation

2.1 Controls

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

Function

1 On/off
2High/Low power / Keypad Lock
3 PTT (Push T o T alk)
4Volume mode select
5 Squelch mode select
6Up key
7Down key
8 Scan mode
9 Dual /Tri watch
10 Select Priority / Personal channel
11 Backlight on/off & Light Mode select

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

5

7

9

11

Key

VOL

SQ

SCAN

D/W

16

Hi/Lo

1 x Press

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 Watt

2 x Press

Add / Delete
channel from
memory scan

Hold During

Power Up

Select secondary

channel set*

Disable / Enable

First Key Beep

* If available

Press & Hold
Doub

le Beep

Scan All Channels

Tri Watch

Select Personal

Channel

Engage/disable

keypad lock

Press & Hold

T

riple Beep

Inhibit /Enable

selected channel

from scan

Set Personal

Channel

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On/Off (1)

Press to turn the HT50 on. To turn 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 life.

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/delete
to memory scan (display shows ENT or DEL
respectively). 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 / Triwatch (9)

Press to select Dual Watch of selected channel
and Ch16. Display shows D/W.

• Press and hold until double beep sounds for
Triwatch - selected channel, personal channel
and Ch 16. Display shows T/W.

a

b

c

d

f

g

i

e

Fig 2.2 - HT50 display functions

aBar 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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