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
SIMPLEX CHANNEL PROGRAMMING
When you program a simplex frequency in a channel, both the
receiver and transmitter will be tuned to the same frequency.
Programming a simplex channel is identical to receive-only program-
ming, except the STO switch is pressed twice after a frequency is
entered to store the frequency in both receive and transmit positions.
Again, start with the FREQ/CHAN button pressed “in, “ the “cursor”
stowed, and the PGM switch pressed with a pencil or pointed object
and the PGM annunciation showing in the display window.
1. Use the smaller inner concentric knob to select the channel num-
ber to be programmed.
2. Set the desired emission mode (USB, LSB or AM) by pressing the
MODE button until the desired mode cycles into view on the display.
3. Using the larger knob to position the “cursor” and the smaller inner
knob to select the appropriate number, complete the desired frequen-
cy entry.
4. Push the STO switch twice. The first press stores the frequency in
the receive position and the second press stores the same frequency
in the transmit position for simplex operation.
Another channel may be selected for programming at this time by
rotating the smaller inner knob. The “cursor” does not have to be
manually stowed before selecting a new channel to be programmed,
as in receive-only. The “cursor” is automatically stowed when the
STO switch is pushed the second time.
5. When all programming is complete, use a pointed object to press
the PGM button and remove the system from the program mode.
6. Press the mic key to tune the antenna. After tuning is complete
you are ready to transmit.
Operation
3-59
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
FREQ KHZ CHANNEL
CLARIFIER
PULL
ON
SQUELCH
OFF
VOLUME
STO PGM
MODE FREQ CHAN
HF
ı
13297.0 12
USB
PGMTX
Figure 3-72 Simplex Channel Programming