Yaesu FT DX 1200 Operation Manual page 84

CW C
ONVENIENCE
If you experience a dif cult interference situation, where an interfering station cannot readily be eliminated, you may
wish to try receiving using the opposite sideband. This may move the interfering station's fre uency in a direction that
may lend itself more readily to rejection.
1. To start, let's use a typical example where you have
set the CW mode using the default "USB" injec-
tion).
. ow be sure your mode selection is still set for VF -
, and then press and hold in the [ MODE ] button for
one second. The "LSB" and "CW" will appear in the
display, indicating that the "LSB" injection side has
now been selected.
3. To return to the normal USB) injection side and
cancel CW everse operation, press and hold in the
[ MODE ] button for one second. the "USB" and
"CW" will appear in the display).
N :
OTES
When CW everse is engaged, the action of the Tun-
ing ffset Indicator will also be reversed
When the incoming signal pitch tone is properly
aligned, the central red marker lights up whether or
not CW everse is engaged.
Retune: Shift to Lower Frequency
Retune: Shift to Higher Frequency
Zero-In
Page 82
F
EATURES
U CW R
SING EVERSE
In the illustration, Figure "A" demonstrates the
normal CW injection setup, using the USB side.
In Figure "B", CW everse has been engaged to
receive using LSB-side injection and eliminate
interference.
The bene cial effect of switching sidebands can
be clearly seen in this example.
A
B
Normal CW
Carrier
(USB)
QRM
RX Passband
CW Reverse
(LSB)
QRM
RX Passband
FT 1200 O
DX PERATING
[ MODE ] Button
Signal
Carrier
Signal
M
ANUAL