Yaesu FT-450D Manuale Utente

Page 20

FT-450D O

PERATION

 M

ANUAL

R

ECEIVING

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.

C

LARIFIER

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”.

N

OTE

:

 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