Using The Speech Processor - Yaesu FTdx5000 Series Operating Manual

E
NHANCING
The Speech Processor is designed to increase "talk power" by increasing the average power output via a sophisticated
compression technique. The result is improved intelligibility when conditions are difficult.
1. Adjust the [ MIC ] (gain) knob for SSB use, as described
on page 70.
2. Press the [ PROC ] button repeatedly until the "
and " " icons appear in the display, confirming
that the Speech Processor is engaged.
A :
A blinking " " icon indicates the Parametric
Microphone Equalizer menu settings have all been set
to "OFF" ("160 TAUD PE1 FRQ", "163 TAUD PE2
FRQ", and "166 TAUD PE3 FRQ").
3. Set the [ PROC ] knob between the 9:00 to 12:00
o'clock position.
A :
The relative compression level of the Speech Proces-
sor will show for 3 seconds in the lower right corner of
the Main Display whenever the outer [ PROC ] knob is
turned.
Alternately, the 3-second display feature may be
changed to show in the SUB DISPLAY-
via Menu item "018 DISP INDI". Additionally, you
may disable the 3-second display feature via Menu item
"017 DISP LVL IND" See page 122 for details.
4. Rotate the [ METER ] switch fully to the left, to select
"COMP" (Compression).
5. Press the PTT switch on the microphone, and speak
into the microphone in a normal voice level. Confirm
that the compression level is within the 5 dB to 10 dB
range.
A :
We recommend that you set the [ PROC ] knob between
9:00 to 12:00 o'clock position as described previously.
5. To switch the Speech Processor off, press the [ PROC ]
button repeatedly until the "
icons disappear.
Page 76
T
RANSMIT
U S
SING THE PEECH
window
" and "
S Q
IGNAL
P
ROCESSOR SSB M
[ MONI ] Button
[ PROC ] Button
"
[ METER ] Switch [ MONI ] Knob
[ MIC ] Button [ PROC ] Knob
A :
Excessive advancement of the [ PROC ] knob will re-
sult in a degradation of the transmitted signal-to-noise
ratio, thereby reducing intelligibility at the other end
of the circuit.
The Transmit Monitor provides a helpful way of veri-
fying proper adjustment of the compression level.
Pressing the [ MONI ] button then adjusting the [ MONI ]
knob for a comfortable listening level while you are
transmitting, allows you to hear the difference in sound
quality as you make adjustments.
The [ RF PWR ] knob still controls the RF power out-
put, whether or not the Speech Processor is engaged.
When the optional DMU-2000 Data Management Unit
"
is connected, you may observe the effect of your com-
pression level adjustments by viewing the wave-form
on the "Oscilloscope" page.
FT
DX
UALITY
5000 O M