Yaesu FT-450 User Manual - page 3
YAESU HF/50 mHz Transceiver FT-450 User’s Manual
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Table of Contents
1
General
..................................................................................................................................... 1
2
Controls
.................................................................................................................................... 1
2.1
Power
............................................................................................................................... 3
3
Receiver
.................................................................................................................................... 4
3.1
Communications Mode
...................................................................................................... 4
3.2
Band
................................................................................................................................. 4
3.3
VFO (Variable Frequency Oscillator)
.................................................................................. 5
3.3.1
Clarifier
........................................................................................................................ 6
3.3.2
Split Frequency Operation
.............................................................................................. 6
3.4
Extracting the Signal from the Noise
................................................................................... 7
3.4.1
RF Attenuation and Intercept Point Optimization (IPO)
.................................................... 7
3.4.2
Noise Blanking
.............................................................................................................. 7
3.4.3
Digital Signal Processor
................................................................................................. 7
3.4.3.1
Contour
............................................................................................................ 8
3.4.3.2
Notch ............................................................................................................... 8
3.4.3.3
Digital Noise Reduction (DNR)
....................................................................... 8
3.4.3.4
Band Pass Width
............................................................................................. 8
3.4.3.5
Filter Shift
........................................................................................................ 9
3.4.4
CW Reverse
.................................................................................................................. 9
3.4.4.6
CW Spotting
.................................................................................................... 9
3.4.5
Radio Frequency Gain
.................................................................................................... 9
3.4.5.7
Automatic Gain Control
................................................................................... 9
3.4.5.8
Radio Frequency Volume Control
................................................................. 10
3.4.6
Audio Volume Control.......................................................................................... 10
3.4.7
Signal meter
................................................................................................................ 10
4
Transmitter
.............................................................................................................................. 10
4.1
Transmission
................................................................................................................... 11
4.1.1
Microphone Button
...................................................................................................... 11
4.1.2
Voice Activated Transmitter Switching (VOX)
.............................................................. 11
4.1.3
CW Break-In
............................................................................................................... 11
4.1.4
Data
............................................................................................................................ 11
4.2
Meter
.............................................................................................................................. 11
4.3
Automatic Antenna Tuner
................................................................................................ 12
5
Channel Memories
................................................................................................................... 12
5.1
Memory Content
.............................................................................................................. 12
5.2
Tuning of the VFO Setup Memory
.................................................................................... 13
5.3
Band VFO Setup Memory
................................................................................................ 14
5.4
Home Memory
................................................................................................................ 14
5.5
Quick Memory
................................................................................................................ 14
5.6
Channels Memories
......................................................................................................... 15
5.6.1
Recall
......................................................................................................................... 15
5.6.2
Storage
........................................................................................................................ 15
5.6.3
Removal
..................................................................................................................... 15
5.6.4
Labeling
...................................................................................................................... 15
5.7
VFO Memory Scanning
................................................................................................... 16