Adjacent Channel Monitor Acm Cw Mode Only - Yaesu FTDX-9000MP Operation Manual

Yaesu ftdx-9000mp hf transceiver: operation manual
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T
C
OOLS FOR
A
DJACENT
While operating on CW on the Main (VFO-A) band, the ACM feature provides a visual indicator of encroachment by
another station (someone you may not be able to hear because of the tight DSP filter in your FT
of a nearby strong signal will be displayed on the Sub-receiver's S-meter. The Sub (VFO-B) receiver is taken over by the
ACM, when engaged, and reception on the Sub (VFO-B) band is not possible while ACM it turned on.
To activate the Adjacent Channel Monitor, press the
ACM switch (#
). The LED imbedded in the switch
will glow Red.
Advice
H If you do not have Dual Receive engaged, turning on
the ACM feature will cause the RX LED associ-
ated with the Sub (VFO-B) receiver to become illu-
minated.
H When ACM is turned on, the frequency of the Sub
(VFO-B) receiver will automatically be set to match
that of the Main (VFO-A) receiver.
H When operating on Dual Receive, engaging the ACM
feature automatically sets the Sub (VFO-B) receiver
to the same frequency as the Main (VFO-A) receiver,
and by inverting the DSP filter the Sub receiver is used
for monitoring (visually) for activity outside your cur-
rent receiver passband on the Main receiver.
When ACM is turned on during Dual Receive op-
eration, the audio from the Sub (VFO-B) receiver
will disappear.
A typical operating circumstance where ACM can
help is when you are running stations during a
contest in a 250 Hz bandwidth. If stations sud-
denly stop calling you, it may be because another
strong station has started calling CQ near your
frequency. By engaging ACM, your Sub-receiver
S-meter will display the strongest station on the
area ±1.2 kHz from your current operating fre-
quency; if the encroaching station is sufficiently
close, you might want to ask him or her kindly to
QSY.
300Hz
1.05 Hz
Page 80
OMFORTABLE AND
C
M
HANNEL
ONITOR
1.05 Hz
E
FFECTIVE
ACM
CW M
ODE
FT 9000MP O
R
ECEPTION
O
NLY
9000MP). The presence
ACM Switch
M

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