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
the channel number you have selected. The procedures are only
slightly different for simplex and semi-duplex channel programming.
SIMPLEX CHANNEL PROGRAMMING
1. Change the first frequency digit to enter the program mode.
By pushing the Frequency/Channel control knob move the “cursor” to
the first digit in the frequency to be changed. Twist the
Frequency/Channel control knob until the desired number has been
selected for this frequency digit. As the knob is twisted, a flashing
dash will appear to the right of the channel number to signify that you
are in the program mode. You will be unable to receive or transmit on
the frequency displayed as long as the dash is flashing to indicate
you are in the program mode. (It is possible to change the last digit
(one tenth kHz) of the frequency without entering the program mode.
See clarifier function.)
2. Select the rest of the desired frequency. Use the “cursor” by
pressing the Frequency/Channel control knob to address each addi-
tional digit you want to change. Once the digit is flashing, again twist
the knob to select the desired number.
NOTE: You may exit the program mode at any time and return to the
previously stored frequency simply by keying the mic.
3. Store the frequency in the receive portion of memory. Once
you have selected the desired frequency, press the STO button to
enter the displayed frequency in the receive portion of memory. The
TX light will begin to flash indicating that memory is ready to receive
the transmit frequency.
4. Store the same frequency in the transmit portion of memory.
Operation
3-67
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
1
S
T
O
HF
OFF
TELAM
USB
LSB
A3J
A3A
VOL
SQ
907.0
12 - 17
CH
M
H
Z
K
H
Z
Figure 3-80 Simplex Channel Programming