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
AMD TRANSMIT MESSAGES
AMD transmit messages can be programmed in two ways. During
normal operation an AMD message can be programmed on the
SEND page. AMD messages can also be created or edited on the
Messages Edit_TX page per the instructions below.
1. From the system program page, select “Messages” on the bottom
line.
2. Press the ENT key. One of the message sub-pages is now dis-
played
3. Select the Edit_TX sub-page.
4. Move the cursor to the message index and select the index of the
message to program.
5. Move the cursor to the bottom line, which is the transmit message.
6. Push the VAR knob (PUSH CHAR) to put the cursor into character
mode. Use the CLR key to clear old message. Use the CRSR knob
to move the character cursor and the VAR knob to change a letter in
the cursored field.
7. Press the ENT key when finished.
8. Repeat steps 4 through 7 for each message.
OPERATION PARAMETERS
The following table describes the operation parameters that can be
programmed on the operation sub-pages.
Operation
Intervals Time Intervals and scan rate
ActvLim Amount of inactive time while linked
on an ALE channel, before the
radio hangs up and returns to
scan. The inactive time is defined
as the time since the microphone key was
last pressed.
ScnRate A two or five Hz scan rate is selectable.
Sound Interval between automatic sounds if
sounds are enabled.
Services
12-5
KHF 950/990 Pilots Guide
Rev. 0
Dec/96