Using Cw Reverse - Yaesu FT DX 9000 CONTEST - MANUAL 2 Operation Manual

CW C
ONVENIENCE
If you experience a difficult interference situation, where
an interfering station cannot readily be eliminated, you may
wish to try receiving using the opposite sideband. This
may throw the interfering station's frequency in a direc-
tion that may lend itself more readily to rejection.
To start, let's use a typical example where you have set the
CW mode (using the default "USB" injection) onto the
VFO-A.
Now be sure your mode selection is still set for the
VFO-A register, and press the CW mode key (#
once more. The "LSB" LED will blink for three sec-
onds, indicating that the "LSB" injection side has now
been selected.
When using Dual Receive, just press the B Mode
key (# ), then press the CW key to engage CW
Reverse on the VFO-B, in exactly the same was as for
the VFO-A.
Press the CW mode key (#
turn to the normal (USB) injection side and cancel
CW Reverse operation.
In the illustration, Figure A demonstrates the normal
CW injection setup, using the USB side. In Figure
B, CW Reverse has been engaged, so as to receive
using LSB-side injection to eliminate interference.
The beneficial effect of switching sidebands can
clearly be seen in this example.
Note
When CW Reverse is engaged, the Tuning Meter action
will concurrently be reversed as to its indication.
When the incoming signal pitch tone is properly aligned,
the central LED lights up whether or not CW Reverse is
engaged.
Page 88
F
EATURES
U CW R
SING
)
) once more to re-
FT
EVERSE
MODE switch
A
Carrier
Normal CW
( )
USB
QRM
RX Passband
B
CW Reverse
( )
LSB
QRM
RX Passband
Retune (Shift to Lower Frequency)
Zero-In
Retune (Shift to Higher Frequency)
9000 C
DX ONTEST
Signal
Carrier
Signal
O M
PERATION ANUAL