Yaesu FT-101ZD Instruction Manual page 7

( 1 0 ) AF GAIN
The AF GAIN control varies the output level of
the audio amplifier stages . Clockwise rotation
increases the audio output level .
( 1 1 ) RF GAIN
The RF GAIN control varies the gain o f the RF
and IF stages. Clo ckwise rotation in creases the gain
of these stages.
( 1 2) LOADING
This control tunes the output circuit o f the final
amplifier pi network to m at ch the feedpoint
impedan ce of the load .
( 1 3 ) PLATE
This control tunes the plate circuit of the final
amplifier.
( 1 4 ) MAIN TUNING KNOB
Rotation of this knob sele cts the operating fre­
quen cy, in conj unction with the setting of the
bandswit ch . One revolution of the dial produces a
frequency change of approximately 1 7 kHz .
( 1 5 ) DIGITAL DISPLAY
The digital display reads out the operating fre­
quency, with resolution to 1 00 Hz. The display
unit is b uilt into the FT- l O l ZD , and is an available
option for the FT- l O l Z .
( 1 6) ANALOG DIAL
The analog dial allows readout of the operating
frequency to better than 1 kHz. The combination
of the precision dial mechanism and drive unit
provides zero backlash at slow tuning rates .
(17)
DIM
This control allows dimming o f the meter a nd dial
lamps.
( 1 8 ) METER
The meter displays final amplifier cathode current
(IC ) , relative power output (PO ) , and ALC feed­
back voltage .
( 1 9 ) NB
This control varies the threshold point for the
noise blanker, and should be set to the minimum
point that provides the desired blanking action .
( 20 ) DELAY
This control sets the delay time for the VO X relay.
For voice-actuated S SB , or semi-break-in CW, the
operator may select the delay time most suitable
for his or her operating habits .
( 2 1 ) VOX GAIN
The threshold level for the VOX (voice operated
relay) system can be varied using this con trol. In
the PTT position, PTT (push to talk) control is
provided, for relay control via the microphone
PTT swit ch or footswitch.
( 2 2 ) DRIVE
This control sets the carrier level for CW and
tuning purposes. When
this control varies the RF output on SSB, as well.
( 23 ) MIC GAIN
This control sets the output level of the micro­
phone amplifier stage . Clo ckwise rotation increases
the mic gain level.
( 24 ) COMP LEVEL
This control varies the compression level for the
built-in RF speech processor.
( 2 5 ) FUNCTION switches
P ROC . . . . . . . . This swit ch activates the RF
speech pro cessor.
A TT . . . . . . . . . . This swit ch allows the insertion
of 1 0 or 20 dB attenuators in the
incoming signal path.
AGC S/F /OFF . . This swit ch allows selection of
the desired AGC decay time. In
the OFF position, the AGC is
swit ched o ff, and the S-m eter
will not fun ction .
PO/ IC/ALC . . . . In the PO position , relative power
output is displayed on the meter.
In the IC position, final amplifier
cathode current is displayed . In
the ALC position , ALC voltage is
displayed. Regardless of the set­
ting o f the meter swit ch, the
meter functions as an S-meter on
receive .
NB/MARK . . . . . In the NB position, the noise
blanker
MARK
crystal calibrator is activated.
- 5 -
the RF
pro cessor is ON ,
is activated. In the
position , the internal