Yaesu FT-101EE - Controls and Switches; Frequency and Mode Selection Controls

CONTROLS AND SWITCHES
The
transceiver
has
been
specifically
designed
for
ease
of
operation
and
versatility,
All
controls
have
been
preset
at
the
factory.
Several
of
the
controls
are
unusual
in
operation,
and
improper
adjustment
may
result in signals of poor quality, The various from
(1) VFO Select Switch :
This switch provides selection of the companion FV-101B
external VFO or two fixed crystal oscillator positions
Normal operation of the transceiver VFO requires that
the switch be placed in the “INT” pasition,
IN T-- FT-101E/277E VFO controls both trans-
mitter and receiver frequencies
RX EXT-FV-101B/277B EXTERNAL VFO controls the
receiver frequency and the FT-101E/277E
VFO controls transmitter output frequency.
TX EXT--FY-101B/277B. EXTERNAL VFO controls the
transmitter
output
frequency
and
the
FT-101E/
277EVFO controls the receiver frequency.
EXT: FY-LOIB/277B EXTERNAL VFO controls
both transmitter and recerver frequencies.
CHI, CH2--Provides crystal control of the transceiver,
Proper ervstals must be installed on PB-1494
crystal oscillator board, for ervstal controlled
operation
(2)
MODE
Switch;
(LSB-USB-TUNE-CW-AM)
The MODE switch is a five-position switch. This
switch is used to select the mode of operation;
LSB, USB, AM, CW, or TUNE position, In the
AM,
CW
and
TUNE
position,
a
separate
crystal
is
used to shift the carrier frequency into the filter
passband,
(3) RF GATIN/AF GAIN ;
The RF GAIN and AF GAIN controls are mounted
panel controls and ther functions are described in the
following section. Be ‘certain that you understand
thoroughly the function of each control before operating
the transceiver,
an concentric shafts. RF GAIN control (lever control}
varies the gam of the receiver RF and IF amplifier.
Maximum sensitivity is obtained with the econtral set
at 10} { fully clackwise),
The AP GAIN control (round knobij adiusts the audio
output level at the speaker and phone jack. Clockwise
rotation increases the audia outpul.
(4) Tuning Knob
The
tuning
knob
located
directly
below
the
main
dial
window
in
combination
with
the
band
switch
determines
the
actual
frequency
of
operation,
The VFO drive mechanism consists of a precision
spring loaded spht gear system in combination with
a planetary drive unit to provide zero backlash at low
tuning rates, Each revolution of the tuning knob results
ina frequency change of 16 KHz as indicated on the
skirt surrounding the tuning knab,
(9) BAND Switch ;
The band switch is an eleven-position switch used to
select the desired band for receiving or transmitting.
The band indication is color coded to guide
tor selecting inthe proper frequency scale for each band.
(6) (7) CLARIFIER ;
The clarifier control provides a means for tuning
the receiver trequency 3 KHz to either side of
the transmitting trequency. Thus, it is possible to
set the pitch of the voice you are receiving to the
the opera-
SSE