Yaesu FTDX-9000D, Руководство по эксплуатации, Страница: 81 / 156

Page 79 FT
DX
9000D O
PERATION
M
ANUAL
A
DJACENT
C
HANNEL
M
ONITOR
(
ACM
)
CW M
ODE
O
NLY
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
DX
9000D). The presence
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 operation, 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 suddenly 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 frequency; if the encroaching station is sufficiently close, you might want to ask
him or her kindly to QSY.
T
OOLS FOR
C
OMFORTABLE AND
E
FFECTIVE
R
ECEPTION
ACM switch
300Hz
1.05 Hz ｋ 1.05 Hz ｋ