Technical information
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
COMMON DISPLAY FORMATS
The top line of the display has the format shown (Figure 3-11) below.
It is divided into three fields 1) Operation / Mode, 2) State /
Selection-Category,Receive State 3) Message flag.
OOOO * Operation / Mode ALE, SEND, MAN,
SYS, MSG.
SSSSSSSSS State /Selection- The format of this field is
Category dependent on the
Operation / Mode selected.
R Receive/Transmit State R indicates Receive Mode
T indicates Transmit Mode
D indicates Detecting ALE
tone
NOTE: When there is no
message or untuned flag,
this field moves to the
message flag location to
provide better readability.
M Message/Untuned flag A flashing M indicates that
there is a message that
has not been reviewed by
the operator. This could be
a system message (fault),
or an ALE message.
A U indicates that the cur-
rent channel is not tuned.
* cursorable field in all top level pages
Operation
3-13
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
OOOO SSSSSSSSSRM
1234567890123456
Figure 3-11 Display Format