Operation; Tuning Steps; Keypad Frequency Entry - Yaesu FT-990 Operating Manual

Operation
Getting Started Tutorial
Before plugging in the transceiver the first time,
double check your installation to make sure your
AC voltage is correct, and that your ground and
antenna are connected as described in the Installa-
tion chapter. Then preset the following controls as
indicated:
POWER, RX ANT, MOX, VOX
&
ATT
switches: off
(A)
AGC
Selector to
AUTO
MIC, RF PWR, PROC, KEVER, SQL
and
NB
all counter-
clockwise
AF
10 o'clock
RF
fully clockwise
SHIFT 12
o'clock
RF FSP, KEVER, BK-IN & SPOT switches all off
(A)
Connect your microphone and/ or CW key or
paddles, and then plug in the ACcord.
Press the
POWER
switch on. The meter and dis-
play should light up. If the display is too bright or
dim for your environment, press and hold the
FAST
button below the tuning knob while turning the
CLAR
control to adjust display brightness.
Take a moment to study the display. You should
see
YFO-A
or
VFO-B
at the left, with the operating
frequency just above the tuning knob. To the right
of that is the clarifier offset
("o.oo"),
followed by a
memory channel number
("01
CH"
by default) at the
far right.
1111111111, , , ,
I l l
I. Ll Ll Lt. Ll
Ll Ll. Ll Ll Ll I
CH
Press a keypad key (to the right of the tuning
knob)
to
select a band for which your antenna is
designed. Refer to the
white labels (representing
MHz), and press the ap-
propriate one.
Next press the mode
button (to the left of the
tuning knob) correspond-
ing to the mode you wish
to operate- for now, we
suggest an SSB mode:
USB
if you have selected a
band above 10 MHz, or
LSB
otherwise. The LED in
the band button indicates the selected band, and an
LED above one of the four
BANDWIDTH buttons
(above the keypad) indicates which IF bandwidth
is currently selected for that mode (except in AM-
wide and FM modes). Right now, if you have se-
lected an SSB mode, the 2. 4K LED should be lit. If
not, press that button. This bandwidth provides
the best fidelity for SSB reception, so should be
used unless interference from stations on adjacent
frequencies becomes a problem (described later).
Adjust the
AF
control for comfortable volume on
signals or noise in the loudspeaker or headphones.
Press the
UP
and
DOWN
buttons below the keypad to
step around the band in 100-Hz steps, and then
tune around the band a bit with the tuning knob.
For faster (x10) tuning steps with either the tuning
knob or
UP
and
DOWN
buttons, press the
FAST
button
at the lower left side of the knob, to enable the
"FAST"
indicator above the MHz digits on the dis-
play.
Fast tuning normally requires that you hold this
button down while tuning, but if you hold the
button while switching the transceiver on, the but-
ton will become a toggle (press on, and press off).
All available standard tuning steps in each mode
Tuning
Steps
Control
JJ.
Mode~
LSB, USB, CW, AM,FM,
RTIY, PKT-LSB PKT-FM
Tuning knob,
Normal 10Hz 100Hz
Mic Up/Dwn
Keys
w/FAST button 100Hz 1kHz
DOWN/UP
Normal 100kHz 100kHz
Push buttons
w/FAST button
1 MHz 1 MHz
One rev of
Normal 10kHz
100kHz
Tuning knob
w/FAST button
100kHz 1 MHz
Tuning rate can be doubled for any mode by installing an
internal jumper (page 12) for that mode.
are shown in the table below. If your microphone
has
UP
and
DWN
buttons, you can press them to tune
in 10-Hz steps, and if it has a
FAST
button, you can
use it to duplicate the function of the key with the
same name on the front panel.
Keypad Frequency Entry
One other important tuning feature to try before
going on is numeric keypad frequency entry. To do
this, pick a new operating frequency, say,
14.25000
MHz, and enter it on the keypad as follows:
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