Yaesu FT-101E Instruction Manual page 15
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Also See for FT-101E:
- Instruction manual (42 pages) ,
- Manual (234 pages) ,
- Operating manual (72 pages)
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LOW
FREQUENCY
IF UNIT
( PB1183B)
e
"
a
F,
q
"
ree
Chis:
module
contains
ow
frequency
JI
crystal filter, detector
VOCS
meter
cirenuits
a S180
KHz
sienal
from
the nose
blanket
fed ta the gate of G1 ZSKIGGR,
FET
from pn
'
i
the module
Cin. recerve.
Circuits
| ror if
crystal
CW
whieh
select
the
The
'
F
F
eae.
=
1
|
man optional
feature available
D1-D4
are
dink
hitter
fer
SSB
oar
filter XP SO
from
your
SWoILCAes
CW
recepticn
G00)
Hz
at additvenal
ewiteh
Selects.
t
when
the MODE
Cost
flealer
Phe
'diode
CW
filter automatically
Lo VY
pexsitier.
14
SWittn
18 set
This
eontral
voltage
is cerivecd
from
nin D and 12. The signal from the crystal filter is fed
Q2.
SSC TE4IK and is amplified by Q?
and Q3, TA-70445M integrated circuit. The gain of
these two stages is controlled automatically by the
AGC
voltage
derived
from
AGC
amplifier Q4,
2$C828Q. The gain is also controlled manually by
the RF gain control on the front panel.
to
the
base
of
The output
fram
GS
is fed
throweh
T1109
to the
ring
CW
Phe
fed
ta the
The
THAT
demodulator
DH:D)1
for
and SSE reception
carrier
Signal
1§
detector
from
pin 3
VR
to
ft Tete!
ms balanced
by
obtain
Bar
al Sic
may be influenced
by
carrier
signal
which
The
reading
co
ayer
the
distortion
and
carrier
oscillator
sernal
PB-1183
VR
-2,
switch,
'The
ame
aa
|
t
|
=
REQUENCY (tHe)
CHARACTERISTICS
OF
SSBICW
FILTERS
OT,
TST
1M
=
1
em
Lace
[25
wach
the audin
amphher
stage
fed
to
throveh the MODE
connected
to
sinal
is
fetected
by
eine
from pin
4
detected
audio
signals
are
(AM)
and
MODE
switeh
on
the fret
auc
ampitier
wt
from
(sob & CW)
and
the
pre
ampliiet
nin
4
pin
6
throweh
the
pare!
Do.
ISIO07,
D6,
FS1555
AA
AC
amplifier Q4. The emitter of Q4 controls S-meter
amplifier Q5,
ZSC&24Q)
rectiers
drive.
the
Cn
leven
[tis then amplified
and
passed
through
transmit,
signal
is applied
to the gate
of Qi
nin
bh,
the crystal
filter. The output
from the erystal
filter 1s
applied
ta the high
frequency
IF unit
from
pin
LO.
Ga
a
Li
o
ry
;
Ss -
5
*)
Pare
_
ts
ae
*
ic
T
r
SOURCE
4
be
¥
*
»
¥
=
'
|
4
Ae?
=
+
Fiche
a
al
ashes
=o
5
=
oe
oh
CW
FILTER
INSTALLATION
DIAGRAM
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