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
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