Manual
Table Of Contents
- TITLE PAGE
- TABLE OF CONTENTS
- INTRODUCTION
- SECTION I
- CHARACTERISTICS OF HF SSB
- ACRONYMS AND DEFINITIONS
- REFERENCES
- HF SSB COMMUNICATIONS
- FREQUENCY
- SKYWAVE PROPAGATION - WHICH FREQUENCY TO
- WHY SINGLE SIDEBAND IS IMPORTANT IN HF
- AMPLITUDE MODULATION (AM)
- SINGLE SIDEBAND OPERATION
- SINGLE SIDEBAND (SSB)
- SUPPRESSED CARRIER VS. REDUCED CARRIER
- SIMPLEX AND SEMI-DUPLEX OPERATION
- AUTOMATIC LINK ESTABLISHMENT (ALE)
- FUNCTIONS OF HF RADIO AUTOMATION
- HOW ALE ASSURES THAT THE BEST COMMUNICA-TIONS
- CHARACTERISTICS OF HF SSB
- SECTION II
- SECTION III
- SECTION IV
- SECTION V
- SECTION VI
- SECTION VII
- ITU MARITIME RADIOTELEPHONE STATIONS
- DESCRIPTION OF SERVICES
- AT&T HIGH SEAS RADIOTELEPHONE SERVICE
- AT & T COAST STATION COVERAGE MAP
- COAST STATION COVERAGE & INFORMATION
- AIRCRAFT REGISTRATION
- OPERATING PROCEDURES FOR USING THE HIGH SEAS RADIOTELEPHONE NETWORK
- AT&T HIGH SEAS COAST STATIONS
- MOBILE MARINE RADIO, INC.
- WORLDWIDE LISTING OF PUBLIC CORRESPONDENCE STATIONS
- MARITIME RADIOTELEPHONE CHANNEL DESIGNATIONS
- SECTION VIII
- SECTION IX
- SECTION X
- SECTION XI
- SECTION XII
- SECTION XIII
Description
1-8
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
Frequency (kHz)
4000 8000 12000 16000
Propagation (Miles)
Min Max Min Max Min Max Min Max
Hours After Sunset
1 100 600 400 2000 500 3500 750 6000
2 100 800 400 2000 500 4000 750 6000
3 100 1000 400 2000 500 4000
4 100 1000 400 2500 500 4000
5 100 1000 400 3000 500 4000
6 100 1500 400 3500
7 250 2000 400 4000
8 250 2500 500 4000
9 500 3000 500 4000
10 500 4000 500 4000
11 500 3000 750 5000
12 250 2500 750 5000
13 250 1500 500 2500
Hours After Sunrise
1 100 1000 400 2000
2 100 500 400 2000
3 0 100 400 2000 3500 750 4000
4 0 100 400 2000 500 3500 750 4000
5 0 100 250 1500 500 3500 750 4000
6 0 100 250 1500 500 3500 750 4000
7 0 100 250 1500 500 4000 750 5000
8 0 100 250 1500 500 4000 750 5000
9 0 100 250 1500 500 4000 750 6000
10 0 100 250 1000 500 3500 750 6000
11 0 250 250 1500 500 3500 750 6000
Table 1-2 Typical Frequency Propagation For Fall And Winter