Yaesu FT-2000D, Руководство по эксплуатации

Страница: 81 / 140

Page 79 FT-2000D O
PERATING
M
ANUAL
T
RANSMITTER
C
ONVENIENCE
F
EATURES
S
PLIT
O
PERATION
U
SING THE
TX C
LARIFIER
(
VFO-A O
PERATION
)
For split TX/RX operation in “casual” pile-ups, where the split is less than 10 kHz, the TX Clarifier (Offset Tuning) feature
may be utilized.
[RX CLAR] Button
[TX CLAR] Button
[CLEAR] Button
[CLAR] Knob
+
CLAR
Main Tuning Dial knob [SUB VFO-B] knob
[MENU] button
1. Press the [ TX CLAR
] button.
The “
TX TX
TX TX TX
” icon will appear in the
Multi-Display Window in the
display.
Q
UICK
P
OINT
:
The Clarifier is frequently used for receiver offset tun-
ing. However, for DX pile-ups where the DX station is
using a split of less than 10 kHz, the TX Clarifier func-
tion is usually the quickest way to set the transmitter to
the desired offset frequency.
2. Rotate the [ CLAR
] knob to set the desired transmitter
offset. A maximum split of ±9.999 kHz may be set.
3. To exit from TX Clarifier operation, press the [ TX
CLAR
] button once more. The “TX” icon will disap-
pear from the Multi-Display Window.
A
DVICE
:
ˆ To listen to the pile-up calling the DX station, so as to
find the station currently being worked, you may press
the [
RX CLAR
] button. Once you have zeroed in on
the station calling the DX (use the SPOT function on
CW for precise alignment of your frequency), you may
then press the [
RX CLAR
] button again to cancel the
RX Clarifier, and return to reception on the DX station’s
frequency.
ˆ Just as with receiver Clarifier operation, the amount of
offset from the original VFO frequency will appear in
the small display window.
ˆ As with receiver Clarifier operation, when you turn the
TX Clarifier off the last-used offset is not lost, and will
be available if you turn the TX Clarifier back on. To
clear the Clarifier offset, press the [
CLEAR
] button.
Clarifier Offset Bar Indicator
A visual depiction of the relative offset of the Clarifier may be displayed, using the Bar Indicator.
1. Press the [
MENU
] button; the Menu list will ap-
pear in the display.
2. Rotate the Main Tuning Dial knob to select Menu
item “
010 diSP BAR SEL 010 diSP BAR SEL 010 diSP BAR SEL 010 diSP BAR SEL 010 diSP BAR SEL
.”
3. Rotate the [ SUB VFO-B
] knob to select “
CLAr CLAr CLAr CLAr CLAr
”
from the available choices; the factory default is
“
C-tn C-tn C-tn C-tn C-tn
.”
4. Press and hold in
the [ MENU
] but-
ton for two seconds
to save the new set-
ting and exit to nor-
mal operation.
Q
UICK
P
OINT
:
When attempting to work a DX station on CW, in a split-
frequency pile-up, remember that a large number of other
stations may also be using Yaesu transceivers with capa-
bility similar to that of your
FT-2000D . On the DX side
of the pile-up, everyone calling precisely on the same CW
frequency will sound like a single tone! So you may have
more success if you use the RX Clarifier to find a hole in
the pile-up, instead of trying to zero-beat the last station
worked by the DX station.
[Plus (+) Offset]
[Zero Offset]
(Minus (–) Offset)