If Shift Operation (Ssb/Cw/Rtty/Pkt/Am Modes) - Yaesu FTDX9000MP Operation Manual

I I I I I R R R R R
NTERFERENCE NTERFERENCE NTERFERENCE EJECTION EJECTION EJECTION
NTERFERENCE NTERFERENCE EJECTION EJECTION
IF SHIFT O
IF Shift allows you to vary the DSP filter passband higher or lower, without changing the pitch of the incoming signal, so as
to reduce or eliminate interference. Because the carrier tuning frequency is not varied, there is no need to re-tune the
operating frequency when eliminating the interference. The total passband tuning range for the IF Shift system is ± 1 kHz.
SUB(VFO-B) [SHIFT] Knob
( VFO-A ) IF S
M B
AIN AND HIFT
Rotate the Main (VFO-A) band's [ SHIFT ] control to the
left or right to reduce the interference.
( VFO-B ) IF S
S B
UB AND HIFT
1. Press the Sub (VFO-B) band's [ RX ] switch to engage
Dual Receive operation.
2. Rotate the Sub (VFO-B) band's [ SHIFT ] control to
the left or right to reduce the interference.
A A A A A
D D D D D VICE VICE VICE VICE
VICE
The position of the IF Shift system may be observed
on the LCD display.
Referring to Figure (A), note the depic-
tion of the IF DSP filter as the thick line,
with the [ SHIFT ] control in the 12 o'clock
position. In Figure (B), an interfering sig-
nal has appeared inside the original pass-
band. In Figure (C), you can see the effect
of rotating the [ SHIFT ] control so as to
reduce the interference level by moving the
filter passband so that the interference is
outside of the passband.
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(S (S (S (S (S
IGN IGN ALS ALS WITHIN WITHIN
IGN IGNALS IGN ALS ALS WITHIN WITHIN WITHIN
( SSB/CW/RTTY/PKT/AM M
PERATION
O
PERATION
O
PERATION
A
IF BANDWIDTH
3 3 3 3 3 ) ) ) ) )
KHZ KHZ
KHZ KHZ KHZ
IF Shift system may be observed on the LCD
MAIN(VFO-A) [SHIFT] Knob
Desired Signal B
QRM
IF BANDWIDTH
FT 9000MP O
DX
)
ODES
VDD BIAS TEMP SWR
IF Shift system may be
observed on the LCD
Desired Signal
C
QRM
IF BANDWIDTH
M
PERATION ANUAL