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Page 20 FT-450D OPERATION MANUAL
RECEIVING
A
BOUT
THE
[
UP
]
/
[
DWN
]
BUTTONS
OF
THE
MH-31
A8J
The microphone
[
UP
]
/
[
DWN
]
keys utilize the tun-
ing steps of the
[
MAIN DIAL
]
knob on the SSB/
CW/DATA mode, and utilize the tuning steps of
the
[
DSP/SEL
]
knob on the AM/FM mode.
When the microphone
[
FST
]
key is pressed, the
tuning rate increases by a factor of ten, in a man-
ner similar to the effect of the transceiver front-
panel
[
FAST
]
button.
CLARIFIER
You may change the receiving frequency only without changing the transmit frequency.
1. Press the
[
CLAR
]
button to activate the clarifier.
The “ ” icon will appear on the display.
2. Rotate the
[
MAIN DIAL
]
knob to tune the desired
receive frequency. (Offset of up to ±9.99 kHz may
be set using the clarifier.)
The offset frequency will appear
at the bottom right corner of the
display.
3. Press the
[
CLAR
]
button again to disable the clari-
fier. The ” icon will disappear from the dis-
play.
[
MAIN DIAL
]
knob
[
CLAR
]
button
Clarifier Offset
When the receiving frequency is
higher than transmit frequency,
“+” will be appended to the off-
set frequency.
When the receiving frequency is
lower than transmit frequency, “–”
will be appended to the offset fre-
quency.
You may assign the CLAR function to the
[
DSP/
SEL
]
knob via the Menu Item “CLAR”.
NOTE:
Even when the clarifier is disabled, the variance
of the clarifier remains (both TX and RX frequen-
cies).
Press and hold in the
[
CLAR
]
button for one sec-
ond to clear the clarifier offset, meaning the re-
ceiving frequency is equal to the transmit fre-
quency.
When the
[
MAIN DIAL
]
knob is rotated to change
the frequency after disabling the clarifier, the clari-
fier offset becomes “zero”, meaning the receiv-
ing frequency is equal to the transmit frequency.
DYNAMIC MICROPHONE
MH-31
DWN FST UP
[
DWN
]
Key
[
FST
]
Key
[
UP
]
Key
22


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