Manual
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
parameter sub-pages. The sub-pages return to this page when the
CLR key is pushed to exit the page. The three sub-pages are:
• Interval Set intervals
• Enables Set Enables
• Bright Adjust display brightness
(performed on installation only)
The operator moves between these sub-pages by placing the opera-
tor on the sub-page field and turning the VAR knob to select another
sub-page.
INTERVAL
The Interval Page is a Program Operation Sub-Page. The intervals
(Figure 3-41) are displayed on the second line. Each time the ENT
key is pushed the next interval is displayed, also if the variable knob
is turned to the right with the cursor on the interval type field the next
interval type is presented. The arrows on the second line indicate
that a list of items is available. The down arrow means this is the top
of the list, and the up arrow is used for the bottom of the list. The “|”
points up and down to indicate there are parameters above and
below this line. There are four adjustable time intervals: ActivLim,
ScanRate, Sound and CallTime (Table 3-2). The units in which each
interval is entered are displayed to the right of the interval value.
Operation
3-32
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
Interval
}IIIIIII XX UUU
Figure 3-41 Interval
ITEM Units Function
ActvLim Minutes The amount of time allowed with no microphone key
activity before the system hangs-up. This feature may
be turned off.
ScnRate Hz The frequency at wich the system scans channels,2 or 5
Sound Minutes The Inerval between automatic sounding sequences.
CallTime Seconds Length of scanning call portion of an ALE call.
Table 3-2 Adjustable Time Intervals