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
INITIAL MANUAL CHANNEL
The initial channel used when changing from ALE to MAN mode
depends on the current ALE state. If the ALE state is linked, then the
linked ALE channel is used, otherwise the last channel selected by
the operator in manual mode is used.
MANUAL CHANNEL ENTRY
Changes made to the 100 manual channels are stored in nonvolatile
memory. The frequency, modulation type, and communication type
are programmable. The frequency modulation and communication
type are modified with the CRSR and VAR knobs. The communica-
tion type field allows simplex or semi-duplex channels to be entered
and used. The default state is simplex, shown as R&T, which means
that the same frequency is used for both receive and transmit.
Changing the communication type to Rx or Tx allows different fre-
quencies to be entered and used for receive and transmit. When the
cursor is on the communication type field the operator can view either
the receive or transmit frequency. When the cursor is not on the
communication type or the frequency field, then the frequency shown
corresponds to the current transmit state.
Operation
3-17
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
MAN ChMan 1 R
R&T 22.5640 USB
Figure 3-13 Simplex Channel
MAN ChMan 100 R
Rx 6.7550 USB
Figure 3-14 Semi Duplex Channel