Using Headphones For Dual Receive; Sideband Diversity Reception; Vfo Tracking Feature - Yaesu FTdx5000 Series Operating Manual

Using Headphones for Dual Receive

To take advantage of dual reception, you will want to con-
nect stereo headphones to the PHONES jack. In addition
to the AF GAIN controls, headphone audio mixing can
also be configured as desired from Menu item "108 ROUT
HEADPHN". Three audio mixing schemes are selectable
as follows:
SEPARETE: Audio from the VFO-A receiver is heard only
in the left ear, and VFO-B receiver audio
solely in the right ear.
CONBINE1: Audio from both VFO-A and VFO-B receiv-
ers can be heard in both ears, but VFO-B
audio is attenuated in the left ear and VFO-
A audio is attenuated in the right ear.
CONBINE2: Audio from both VFO-A and VFO-B receiv-
ers are combined and heard equally in both
ears ("Monaural" mode).

VFO Tracking Feature

You may lock VFO-B to track in unison with VFO-A when
the main tuning dial is adjusted. See page 83 for details.
Go to Menu item "038 GENE TRACK" to set the track-
ing function as follows:
OFF: VFO-A and VFO-B tune independently (Default)
BAND: Band Change operations will be applied to VFO-
A and VFO-B simultaneously.
FREQ: VFO-A and VFO-B tune in unison when The Main
Tuning dial is adjusted. However, VFO-B may
be adjusted separately.
FT 5000 O
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UAL
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ECEIVE

Sideband Diversity Reception

Here you receive a single AM signal through the two re-
ceivers, each receiving the opposite sideband. Skywave-
propagated signals often show phase distortion in this
mode, but it gives you a view of the entire passband, from
which you can then select the best sideband for listening
(or for SWL Dx'ing, you may want to listen to both side-
bands at the same time, to get the best copy). On
groundwave signals, where the phase of the sidebands is
likely to be the same, there is an interesting sense of depth
to the signal.
To tune in a signal using this mode, you should have ste-
reo headphones connected to the front panel PHONES
jack.
Set VFO-A to either LSB or USB mode, and tune for
zero beat on the desired signal.
Press the [ A B ] button to copy this mode and fre-
quency into VFO-B, then press the [ MODE ] button to
select the opposite sideband for VFO-A.
If using headphones, set the headphone mixing scheme
to the "CONBINE1" mode via Menu item "108 ROUT
HEADPHN", and activate dual reception.
Adjust the [ AF GAIN ] knob(s) to balance the volume
of the two receivers.
If interference is present on one of the channels, you
may have to turn its [ AF GAIN ] knob to suppress that
channel (or press the green [ RX ] button to disable the
receiver with the sideband experiencing interference).
Otherwise, try changing the headphone audio mixing
scheme to "CONBINE2" or "SEPARETE" in the Menu
item "108 ROUT HEADPHN", for different effects
(or try settings with similar effects, if you use an exter-
nal audio amplifier). Although you don't get the "ste-
reophonic" effect in the monaural mode, the two sig-
nals are still mixed, offering the potential for much
better copy than in regular AM or even single-side-
band ECSS modes.
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