(Ssb/Cw/Rtty/Pkt Modes) - Yaesu FT DX 9000 CONTEST Operation Manual

I I I I I R R R R R
EJECTION ( S S S S S
NTERFERENCE NTERFERENCE NTERFERENCE EJECTION EJECTION
NTERFERENCE NTERFERENCE EJECTION EJECTION
WIDTH ( IF DSP B
The IF Width tuning system allows you to vary the width of the DSP IF passband, so as to eliminate interference. More-
over, the bandwidth may actually be expanded from its default setting, should you wish to enhance incoming signal
fidelity when interference on the band is low.
Rotate the [ WIDTH ] knob to adjust the bandwidth.
Counter-clockwise rotation reduces the bandwidth, while
clockwise rotation increases the bandwidth.
By rotating the [ WIDTH ] knob to the left, the band-
width will narrow (see Figure (A)), while rotation
of the [ WIDTH ] knob to the right, as depicted in
Figure (C), will widen the bandwidth.
The default bandwidths, and total bandwidth ad-
justment range, will vary according to the operat-
ing mode:
SSB Mode
200 Hz ~ 4.0 kHz (bandwidth at 12 o'clock posi-
tion of [ WIDTH ] : 2.4 kHz).
CW/RTTY/PKT Modes
25 Hz ~ 2.4 kHz (bandwidth at 12 o'clock posi-
tion of [ WIDTH ] : 500 Hz).
A B
IF BANDWIDTH IF BANDWIDTH
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IGN IGNALS IGN IGN ALS WITHIN ALS ALS WITHIN WITHIN WITHIN
IGN ALS WITHIN
) T
ANDWIDTH UNING
C
IF BANDWIDTH
)
3 3 3 3 3
KHZ KHZ KHZ
KHZ KHZ
( SSB/CW/RTTY/PKT M
LCD Display
VDD
[ WIDTH ] Knob
WIDTH system may be
observed on the LCD
A
DVICE
You may observe the effects of adjustment of the
[ WIDTH ] control on the LCD.
FT 9000 C
DX ONTEST
)
ODES
BIAS TEMP SWR
O M
PERATION ANUAL