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
will display the knob or key action on the second line. Pressing CLR
twice will exit the keyboard test.
SYSTEM REVNUM
The software revision numbers are displayed on this page. where rr
is the release number and vv is the revision number taken directly
from the last four digits of the 206 software bill of material number.
for engineering releases the release number will be preceded with an
āeā (er/vv).
SYSTEM LQA SCORE
This page (Figure 3-31) allow the operator to review the LQA scores
for each address in the database. Pressing ENT will display the LQA
page.
LQA SCORE PAGE
The LQA score page (Figure 3-32) is used during engineering lab
and field tests. The purpose of this page is to present the 100 x 100
LQA data table. The ALE address and the channel number are
selected on the top line. The LQA scores are displayed on the sec-
ond line in the following order SINAD then bit error rate, the compos-
ite score is also displayed. The T indicates scores returned for the
transmit HF signal and R represents scores measured for the
received HF signal. This page is exited with the CLR key.
Operation
3-26
KHF 950/990 Pilots Guide
Rev. 0
Dec/96
SYS RevNum
SW MOD RR/VV
Figure 3-30 System RevNum
SYS LQAscore
ENT to review
Figure 3-31 System LQA Score