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
CLEAR TUNES FROM ALL TUNED CHANNELS (Clear Tunes)
The Clear Tunes Page is a Program Channel Sub-Page. This page
is used to mark all stored ALE and Manual channels as untuned.
This operation is most useful after a new CDU or Antenna Coupler
(KAC 952 or KAC 992) has been added to the system. Since the
tunes are stored in the CDU and are valid only for the coupler on
which the tunes were performed, if either box changes all channels
should be retuned. To clear the tunes (mark all channels as
untuned), the cursor must be moved to the YES/NO field, YES
selected with the VAR knob and then the ENT key pressed. The
radio then sets all Manual and ALE channels that are stored to the
not tuned state.
Marking Untuned
After the ENT key is pressed the marking untuned page (Figure 3-51)
is displayed. When all stored channels have been marked untuned,
“Finished” is displayed on the second line. “CLR” flashes to indicate
that the operator should press the CLR key to exit this page.
Operation
3-40
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
Need Tune ###
Completed ###
Figure 3-49 Need Tune Completed
Clear Tunes ? NO
Set all untuned
Figure 3-50 Clear Tunes
Marking untuned
Finished CLR
Figure 3-51 Marking Untuned