Q-Mac HF-90 Cómo utilizar
HF-90 Operation & Installation Guide
HF-90 Operation & Installation Guide
No part of this manual may be copied, transcribed,
translated or reproduced in any manner or form whatsoever,
for commercial purposes, without obtaining prior written
permission from Q-MAC Electronics Pty Ltd. However,
limited copying is permitted for private use providing
authorship is acknowledged.
© Copyright of Q-MAC Electronics Pty Ltd.
Print date: Sep 2003
Literature Reference Number: GUIDE07.PUB
HF-90 Operation & Installation Guide
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
Introduction
1.1 About this Guide...................................................... 1
1.2 Glossary of terms..................................................... 2
Understanding HF/SSB
2.1 What is HF/SSB?..................................................... 3
2.2 How does HF/SSB work?........................................ 4
2.3 Factors which affect HF/SSB communications ....... 7
Speaking on air
3.1 How to make a voice call......................................... 9
3.2 Radio alphabet ....................................................... 11
Overview of the HF-90
4.1 HF-90 Versions and Models.................................. 12
4.2 Operating the HF-90 .............................................. 14
Standard functions
5.1 ON/OFF switch...................................................... 16
5.2 Volume control knob ............................................. 18
5.3 Channel up/down scroll keys................................. 19
5.4 Clarifier up/down scroll keys................................. 21
5.5 USB/LSB mode selection key ............................... 23
5.6 Tune key ................................................................ 25
5.7 LED display........................................................... 26
5.8 Erase function ........................................................ 27
5.9 Press to talk (PTT) switch........................................ 28
Section 1
Section 2
Section 3
Section 4
Section 5
HF-90 Operation & Installation Guide
Advanced functions
6.1 Selcall.................................................................... 29
6.2 Telcall.................................................................... 33
6.3 Beacon................................................................... 38
6.4 Selcall Scan ........................................................... 40
6.5 Selcall Mute .......................................................... 41
6.6 Advanced functions summary ............................... 42
Compatible products
7.1 TA-90 autotune system ......................................... 44
Installation
8.1 Mobile systems...................................................... 45
8.2 Vehicle systems..................................................... 48
8.3 Base station systems.............................................. 51
External connectors .............................................. 54
Accessories ........................................................... 55
Further reading ...................................................... 56
Notes....................................................................... 57
Section 6
Section 7
Section 8
Section 9
Section 10
Section 11
Addendum
Notes
HF-90 Operation & Installation Guide
1
1. INTRODUCTION
1. INTRODUCTION1. INTRODUCTION
1. INTRODUCTION
About this Guide
The main purpose of this guide is to provide you, the HF-90
user, with all the information you require to ensure optimum
performance from your HF-90 radio.
The Guide explains in detail how to operate the HF-90 once
it has been programmed by an authorised Q-MAC
Representative. It also contains an Addendum concerning
Field Programming, which is relevant only to international
users (outside of Australia) who are licensed to program
their own operating frequencies.
The Guide also covers basic principals of installation by
way of check-lists. It does not give comprehensive
instructions on how to install the HF-90. We recommend
that the installation of your HF-90 be carried out by a
qualified Q-MAC Representative.
This device complies with Part 90 of the FCC Rules.
Operation is subject to the condition that this device does
not cause harmful interference.
Section 1.1
HF-90 Operation & Installation Guide
Glossary of terms
ATU Antenna Tuning Unit
BITE Built In Test Equipment
CB Citizen Band
DTMF Dual Tone Multi Frequency (touch-pad)
HF High Frequency
Hz Hertz (measure of frequency)
ID Identification
kHz Kilohertz (measure of frequency)
LSB Lower Sideband
MHz Megahertz (measure of frequency)
PSU Power Supply Unit
PTT Press To Talk
RFDS Royal Flying Doctor Service
Selcall Selective Call
SSB Single Sideband
Telcall Selective Call with Telephone Call facility
USB Upper Sideband
2
Section 1.2
HF-90 Operation & Installation Guide
2. UNDERSTANDING HF/SSB
2. UNDERSTANDING HF/SSB2. UNDERSTANDING HF/SSB
2. UNDERSTANDING HF/SSB
What is HF/SSB?
HF (High Frequency) is the section of the radio spectrum
between 1.6 and 30 MHz. SSB (Single Sideband) is a form
of radio modulation. HF/SSB combines the characteristics
of HF frequencies with SSB modulation to provide very
efficient, flexible and inexpensive communications.
HF/SSB will enable short, medium and long range
communications over flat, hilly or mountainous terrain -
without the need for expensive re-transmission devices, such
as the repeaters used in VHF (Very High Frequency)
communications. Also, unlike satellite communications,
there is no dependence on a service provider with all the
associated ongoing costs.
In many remote areas around the globe, and in certain
conditions, HF/SSB is the only form of communication
possible.
3
Section 2.1
HF-90 Operation & Installation Guide
How does HF/SSB work?
When HF/SSB radio waves are generated there are usually
two components:-
The ground-wave, which travels directly from the
transmitting antenna to the receiving antenna
following the contours of the earth, and ...
The sky-wave, which travels upward and at an angle
from the transmitting antenna, until it reaches the
ionosphere (an ionised layer high above the earth’s
surface) and is refracted back down to earth, to the
receiving antenna.
Generally speaking, ground-wave is used to communicate
over shorter distances (in most cases less than 50km).
However, because ground-wave follows the contours of the
earth, it is affected by the type of terrain it passes over. For
example, ground-wave is rapidly attenuated (reduced) when
it passes over hilly or mountainous terrain.
Sky-wave is used to communicate over medium range and
longer distances (up to 3,000km and beyond in good
conditions). Because of the nature of sky-wave propagation,
it is not affected by the type of terrain it passes over. This
means that communications can be achieved over medium
and long distances in mountainous areas, using HF/SSB sky-
wave. However, sky-wave propagation is affected
significantly by other factors as outlined in Section 2.3 of
this Guide.
Ground-wave and sky-wave examples are illustrated on the
following page.
4
Section 2.2
HF-90 Operation & Installation Guide
A
Not to scale
20 km 2,000 km800 km
DCB
The following illustrations show the characteristics of
ground-wave and sky-wave propagation during the day time
and night time. Each illustration clearly shows the level of
the ionosphere.
In both illustrations Station A communicates with Stations
B, C and D. Propagation from Station A to B is via ground-
wave. You will notice how the time of day, and level of the
ionosphere, does not affect ground-wave.
Propagation from Station A to C and D is via sky-wave.
You will notice how the time of day, and level of the
ionosphere, affects sky-wave.
Under each diagram there are recommended working
frequencies listed. Please note that these will vary according
to time of year and other factors. They are intended only as
a guide and are subject to change.
5
Section 2.2
Ionosphere
A to B - Recommended working frequency is 3 MHz
A to C - Recommended working frequency is 7 - 9 MHz
A to D - Recommended working frequency is 13 - 16 MHz
DAY TIME:
Sun is higher
Ionosphere is
higher
Optimum
working
frequency is
higher
Radio propagation illustrated
HF-90 Operation & Installation Guide
Not to scale
D
CB
A
2,000 km800 km20 km
Ionosphere
A to B - Recommended working frequency is 3 MHz
A to C - Recommended working frequency is 5 to 7 MHz
A to D - Recommended working frequency is 9 to 12 MHz
NIGHT TIME:
Sun is lower
Ionosphere is
lower
Optimum
working
frequency is
lower
6
Section 2.2
Otros manuales para HF-90
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