Yaesu FTDX9000MP Operation Manual page 35

P.BACK Switch
Press and hold in this button for 2 seconds to activate
the recording feature of the internal Digital Voice Re-
corder. The Voice Recorder allows you to record the
Main band (VFO-A) receiver audio for the most-re-
cent 15 seconds. While you're recording the receiver
audio, the LED in this button glows red.
Press and hold in this button for 2 seconds once more
to stop the recording, then press this button momen-
tarily again to play back the receiver audio for the
most-recent 15 seconds of reception before you
stopped the recording.
While playing back the receiver audio, the LED in-
side button will glow umber.
Press and hold in this button for 2 seconds again to
resume recording.
AFL Switch
Pressing this button activates the Audio (AF) Limiter
circuit of the Main band (VFO-A) receiver. This will
protect the audio amplifier from distortion, and pro-
tect your ears from high audio levels, caused by sud-
den peaks in audio input when the AGC is set to "OFF."
When the Audio Limiter circuit is activated, the LED
inside the button will glow Umber.
SHIFT WIDTH Knobs
( except on FM mode )
SHIFT Knob
This knob provides adjustment of the IF DSP pass-
band, using 20 Hz steps for precise adjustment and
easy reduction of interference on either side of your
operating frequency. The total adjustment range is ± 1
kHz.
The normal operating setting for this knob is straight
up, in the 12 o'clock position.
WIDTH Knob
The outer [ WIDTH ] knob, when turned to the 12
o'clock position, sets the overall IF bandwidth of the
Main band (VFO-A) receiver to its maximum band-
width. Turning the [ WIDTH ] knob either direction,
reduces the overall IF bandwidth of the main band
(VFO-A) receiver.
When the NAR (Narrow) filter selection is engaged,
this control is disabled. The [ SHIFT ] control, how-
ever, is still fully functional.
Use this control to narrow the IF DSP passband, as
necessary, to reduce interference. The [ SHIFT ] con-
trol may be used to re-center the passband response
on the incoming signal, and you may find that the
CONTOUR and IF NOTCH filters may also help im-
prove intelligibility and/or reduce interference. See
also the discussions of controls [ CONT ] (#
scribed previously), [ DNR ] (#
ously), and [ VRF/μ ] (#
Advice: When the [ NAR ] switch (#
previously) has been pushed, the [ WIDTH ]
control no longer functions. The IF SHIFT
system is still fully operational, however.
FT 9000MP O
DX PERATION
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ANUAL
F F F F F P P P P P
R R R R R ONT ONT ONT ONT ANEL ANEL ANEL
ONT ANEL ANEL
ACM ( Adjacent Channel monitor ) Switch
( CW Mode )
When using a narrow bandwidth, such as 300 Hz, on
the Main band (VFO-A) receiver in the CW mode,
pressing the [ ACM ] switch will take over the Sub band
(VFO-B) receiver, and utilize it for monitoring the sig-
nal strength of any signals being received inside a 2.4
kHz window centered on your current operating fre-
quency. You will not hear any of the interfering sig-
nals, but their signal strength will appear on the Sub
band (VFO-B) S-meter.
RX Indicator/Switch
This is the switch that turns the Sub (VFO-B) receiver
On and Off. When this button is pressed to make the
Sub (VFO-B) receiver active, the Green LED imbed-
ded within the switch will light up. Pressing the switch
again will disable this receiver, and the imbedded
Green LED will turn off.
TX Indicator/Switch
This is the switch that turns the Sub (VFO-B) trans-
mitter On and Off. When this button is pressed to trans-
fer transmitter control to the Sub (VFO-B) frequency
and mode, the Red LED imbedded within the switch
will light up. Pressing this switch once more will trans-
fer frequency/mode control back to the Main (VFO-
A) side, and the Red LED imbedded within this switch
will turn off.
CLAR ( Clarifier ) Switch
When this switch is pushed, the [ CLAR/VFO-B ] knob
(# , described later) will be enabled for the purpose
of utilizing the [ CLAR/VFO-B ] knob as an "Offset
tuning" control to allow tuning away from the Main
(VFO-A) frequency.
BAND/MHz Switch
BAND Switch
Pressing this button momentarily allows you to select
the main (VFO-A) operating band (Amateur bands)
using the [ CLAR/VFO-B ] knob (#
later).
MHz Switch
Pressing and holding in this button for 2 seconds al-
lows you to tune the Main band (VFO-A) frequency
down or up in 1 MHz increments, using the [ CLAR/
VFO-B ] knob (#
, described later).
B-DISP OFF Switch
Pressing this button causes the Sub band (VFO-B) fre-
quency to be blanked out, for local rag-chews or other
occasions when the additional display information is
not needed. When this function is activated, the LED
inside the button will glow green.
C C C C C
ONTR OLS ONTR ONTR OLS OLS OLS
ONTR ONTR OLS
, described
Page 33