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
PROGRAMMING FREQUENCY
If the receive and transmit frequency are the same, the communica-
tion type is set to R&T. If different receive and transmit frequencies
are to be entered, the communication type is set to Rx to enter the
receive frequency and Tx to enter the transmit frequency.
1. Select communication type if it is not correct
a. Set cursor over communications type field.
b. Turn VAR knob to select Rx, Tx, etc.
2. Place cursor over frequency field and push the VAR knob
(PUSH CHAR) to put the cursor into character mode.
3. Enter the frequency by moving the character cursor to a digit and
turning the VAR knob.
4. Press the ENT key when complete.
PROGRAMMING MODULATION TYPE
Place the cursor over the modulation type field, if it is not already
there.
Turn the VAR knob to select the proper modulation type.
Press the ENT key to store the modulation type selection, if a change
was made.
ALE DATABASE PROGRAMMING
The ALE database is programmed under the system program page
(SYS Program). As a minimum, the following information is needed
to setup the ALE database.
1. AMD messages; Any AMD messages to be preprogrammed.
2. Maximum call time: The amount of time this radio must call to
insure that any radio it calls has time to go through its scan list at
least one time.
3. Frequency and modulation for each ALE channel.
4. Channel groups: The list of channels that this radio scans and
the list of channels all other radios scan, if different.
5. Self address; ALE address this radio will respond to.
Services
12-2
KHF 950/990 Pilots Guide
Rev. 0
Dec/96