Yaesu FT DX 9000MP CONTEST - DATA MANAGEMENT OPERATION, Руководство по эксплуатации

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Page 94 FT
DX
9000MP O
PERATION
M
ANUAL
SSB/AM M SSB/AM M
SSB/AM M SSB/AM M
SSB/AM M
ODE ODE
ODE ODE ODE
TTTTT
RANSMISSION RANSMISSION
RANSMISSION RANSMISSION RANSMISSION
(E(E(E(E(E
NHANCING NHANCING
NHANCING NHANCING
NHANCING
TTTTT
RANSMIT RANSMIT
RANSMIT RANSMIT
RANSMIT
S S S S S
IGN IGN
IGN IGN
IGNAL AL
AL AL
AL
Q Q Q Q Q
UUUUUALITY ALITY
ALITY ALITY
ALITY
)))))
U
SING THE
S
PEECH
P
ROCESSOR
- SSB/AM M
ODES
-
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 control for SSB use, as de-
scribed on page 86.
2. Press the [ PROC
] switch momentarily. The Red LED
imbedded in the switch will light up, confirming that
the Speech Processor is engaged.
3. Rotate the [ METER
] switch fully to the left, so as to
select “COM” (Compression). Confirm that the com-
pression level is within the 5 dB to 10 dB range.
It is recommended that you utilize the monitor function
and adjust the [
PROC
] knob between 9:00 to 12:00 o’clock
position.
A
DVICE
The Sub band (VFO-B) frequency display will show the
relative speech processor gain level for 3 seconds when-
ever the [
PROC
] knob is turned.
You may disable this feature (displaying the relative speech
processor gain level) via Menu item “
DISPLAY 022
LEVEL INDICATOR .” See page 148 for details.
To switch the Speech Procesor off, press the [ PROC
]
switch once more. The Red LED imbedded in the switch
will go out, confirming that the Speech processor is turned
off.
[METER] Switch
[MIC] Knob / [PROC] Knob
[PROC] Switch
A A
A A A
D D D D DVICE VICE VICE VICE VICE
Excessive advancement of the [ PROC
] control will
result in a degradation of the transmitted signal’s
signal-to-noise ratio, thereby reducing intelligibil-
ity at the other end of the circuit.
If you have an after-market monitor connected
to the DISPLAY jack, you can observe the ef-
fect of your COMP level adjustments by view-
ing the wave-form on the “Oscilloscope” page
on the external monitor.
The Transmit Monitor is another helpful way
of verifying proper adjustment of the
Compresison level. By Pressing the [
MONI
]
switch and adjusting the [ MONI
] control for a
comfortable listening level while you are trans-
mitting, you will be able to hear the difference
in sound quality as you make adjustments.
The [
RF PWR
] control still controls the RF
power output, whether or not the Speech Pro-
cessor is engaged.
VDD TEMP SWR BIAS
[MONI] Switch
[MONI] knob
[RF PWR] Knob