Page 146 FT -991 Opera Ting M anual
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A
A/B Button ................................................................. 20
A=B Button ................................................................ 20
About A TU Memories ................................................ 62
About A TU Operation ................................................ 62
About Coaxial Cable .................................................. 11
About GPS Positioning ............................................ 11 0
About the Display ...................................................... 22
Accessories & Options ................................................. 5
Active-T uning Antenna System (A T AS-120A) ....... 141
Adjustable Receiver Audio Filter ............................... 58
Adjusting the Clock ..................................................... 8
Adjusting the Main T uning Dial T orque ...................... 7
Adjusting the Noise Blanker Level ............................ 47
Adjusting the SSB T ransmitted Bandwidth ............... 67
AF GAIN Knob.......................................................... 21
AGC ............................................................................. 57
Alaska Emergency Frequency: 5167.5 khz.............. 106
A>M Button ............................................................... 21
AM Mode Transmission ............................................ 59
AMS (Automatic Mode Select) Operation ................ 38
Antenna Considerations ............................................. 11
ANT Jack (144/430MHz) .......................................... 25
ANT Jack (HF/50MHz) ............................................. 26
ARS ............................................................................ 93
A T AS-120A .............................................................. 141
A TT (Attenuator)........................................................ 45
Attenuator .................................................................. 45
A TU Operation ........................................................... 61
Audio Peak Filter ....................................................... 56
Automatic Gain Control ............................................. 57
Automatic Mode Select .............................................. 38
Automatic Repeater Shift (ARS) ............................... 93
A vailable Options ......................................................... 6
B
BAND Button ............................................................ 19
Band Stack Operation ................................................ 37
Base Station W ire Stand ............................................... 7
Basic Operation .......................................................... 30
Before Y ou Begin ......................................................... 7
C
C4FM Mode (Digital Mode) Operation ..................... 95
Changing the Frequency of the Home Channel ......... 99
Checking a Memory Channel Status ........................ 101
Choosing the Desired Memory Group ..................... 105
CLAR Button ............................................................. 21
CLAR (Clarier) Operation ....................................... 34
Clarier Operation ..................................................... 23
CLAR/VFO-B Knob .................................................. 21
Clock .......................................................................... 23
Connection of Antenna and Power Cables ................. 13
Connection of Headphone .......................................... 14
Connection of Microphone ........................................ 14
Connection of Remote Control Keypad ..................... 14
Contest Memory Keyer .............................................. 84
Contest Number Programming .................................. 85
CONTOUR Control ................................................... 48
Convenience Features ................................................ 38
Convenient Memory functions .................................. 97
C.S Button .................................................................. 20
C.S (Custom Switch) ................................................. 37
Current Mode (Modulation Form) Indicator .............. 22
Custom Switch ........................................................... 37
CW Convenience Features ......................................... 82
CW Delay Time Setting ............................................. 83
CW Pitch Adjustment................................................. 83
CW Spotting (Zero-Beating) ...................................... 82
D
DA T A (PSK) Operation ........................................... 11 8
DC IN Jack ................................................................. 25
DCS Operation ........................................................... 94
Digital Mode Operation ............................................. 95
Digital Noise Reduction (DNR) ................................. 54
Digital NOTCH Filter (DNF) .................................... 54
DIMMER ................................................................... 35
Displaying the Position Information ........................ 11 2
DNF............................................................................ 54
DNR ........................................................................... 54
E
Electronic Keyer ........................................................ 78
Enhancing T ransmit Signal Quality ........................... 63
Entering the Location Information Manually .......... 11 2
epeater Operation ....................................................... 92
Erasing Memory Channel Data ................................ 101
EXT SPKR Jack ......................................................... 26
F
F AST Button .............................................................. 21
F AST Indicators ......................................................... 24
FC-40 External Automatic Antenna T uner .............. 139
FH-2 Remote Control Switches ................................. 28
F(M-LIST) Button ..................................................... 19
FM Mode Operation .................................................. 91
Front Panel Controls & Switches ............................... 18
Full Reset ................................................................... 10
Function Menu ........................................................... 23
G
General Description ..................................................... 1
GM Function ............................................................ 11 3
GND ........................................................................... 25
GPS/CA T Jack ........................................................... 25
GPS Function ........................................................... 11 0
GPS Signal Capturing Indicator ................................. 23
Grounding .................................................................. 12
H
HI-SWR Indicator ...................................................... 22
Home Channel ........................................................... 99