Uniden PRESIDENT JACKSON User manual

Service
Manual
CB
TRANSCEIVER
Model
JACKSON
UT-547C/D
NN
thanks Homer
യുട
uniderne
CORPORATION

TABLE OF CONTENTS
SPECIFICATIONS
INSTALLATION
GENERAL INFORMATION
= OPERATING CONTROLS
ALIGNMENT PROCEDURES
FREQUENCIES
2) | BLOCK DIAGRAM
SCHEMATIC DIAGRAMS/WIRING DIAGRAM/PC BOARD
1. E12-2108 : SCHEMATIC DIAGRAM
2. E12-2108 : REVISED I
3.
E22-4674
:
MAIN
PCB
PARTS
ASSEMBLY
TOP
VIEW
#<z—4674
4. E32-2212 : WIRING DIAGRAM
BILL OF MATERIAL : 25 P.S

A. SPECIFICATIONS
1.
GENERAL
Channel and Frequency Range
Crystals
Microphone
Speaker
Antenna Connector
Jacks & Connectors
Controls
Meter
Illumination
Size
Weight
Accessories
MEASUREMENT CONDITIONS
a) Power Source
b) Antenna Impedance
c) Test Temperature
d) AM Modulation Frequency
e) FM Modulation Frequency
f) SSB Modulation Frequency, Two
Tone
g) Mean Signal Input Level
h) Reference AM Modulation
Percentage
se
226 A Band 26.065 — 26.505 MHz
B Band 26.515 — 26.955 MHz
C Band 26.965 — 27.405 MHz
D Band 27.415 — 27.855 MHz
E Band 27.865 — 28.315 MHz
3
600 ohms, Dvnamic Tvpe
8 ohms, З W
М Туре i
Mic 4P
EXT. SP -3.59
PA. SP -3.59
DC Power -ЗР
Channel Selector, Mode Selector |
FM-AM-USB-LSB, Mic Gain, ON/OFF Power
Switch & Volume, ON/OFF PA Switch &
Squelch, RF Gain, Coarse, Fine,
Band Selector A-B-C-D-E, Noise Blanker/
ANL Switch, Roger Beep Switch, S/RF-Mod
Switch and +10 kHz — Normal Switch
RF Output Power, Signal Strength and
Modulation
Channel Number Indication (LED)
RX, TX Indication (LED), Meter Lamp
7.784"(W) X 2.36"(H) X 11.22"(D)
5 Pounds (2.2 kgs)
DC Power Cable with Built-in Fuse,
Microphone and Microphone Hanger
13.8 V (DC)
50 ohms
25 XC
1 kHz
1 kHz
500 Hz $ 2.400 Hz
1.000 uV
1 kHz 30%

1)
Reference
FM
Deviation
3)
Reference
Audio
Output
Power
k) Audio Frequency
1) Audio Output Load
TRANSMITTER
a) Frequency Tolerance
at
25
%
(5
Minutes
after
Switch
on)
b) Carrier Power
c) PEP Power, Two Tone, SSB
d)
Spurious
&
Harmonic
Emission
e) Carrier Suppression
f) Unwanted Sideband
Suppression
(at
2.500
Hz
4
Мрер
16
dB
Single
tone)-
g) Battery Drain
at no Modulation
h) Battery Drain
Am : MAX Modulation
SSB: MAX Wpep, Two Tone
FM : MAX Modulation
i)
Modulation
Frequency
Response
(1 kHz, OdB reference)
Lówer at 450 Hz
Lower at 2.5 kHz
j) Microphone Sensitivity
AM : For 50% Modulation
SSB: For 10 Wpep Outpüt
FM
:
For
1
kHz
Deviation
k) AMC Range
AM : 50 — 100% Modulation
SSB:
: 1.5 kHz
: 0.5 W
: 1 kHz
: 8 ohms Resistive
UNIT
AM Hz
SSB Hz
FM Hz
AM W
FM W
Wpep
AM dB
SSB dB
FM dB
SSB dB
NOMINAL
i 300
i 300
+ 300
10.0
10.0
21.0
-50
-50
-50
-55
BLALLA
юною ooo
бё
LIMIT
1.500
1.500
1.500
0
оо HHH
.O — 14.0
.0 - 14.0
18.0 - 26.0

4.
RECEIVER
(ANL/NB
Switch
off)
a)
b)
c)
d)
e)
f)
g)
h)
k)
1)
m)
n)
o)
Max Sensitivity
Sensitivity
for
10dB
S/N
FM : 20dB S/N
АСС Figure of Merit, 50 mV
for 10dB change in Audio
Output
Overall Audio Fidelity
at 6dB down
Upper Frequency
Lower Frequency
Adjacent
Channel
Selectivity
(10
kHz
1
GEN)
Maximum
Audio
Output
Power
Audio
Output
Power
at
10%
THD
RF Gain Control Range
S/N Ratio at 1mV Input
Squelch
Sensitivity
at
Threshold
Squelch
Sensitivity
at
Tight
S Meter Sensitivity
at
"S-9"
(No
Modulation)
Image
Rejection
Ratio
IF Rejection Ratio
Oscillator Dropout Voltage
UNIT
AM uV
SSB uV
AM uV
SSB uV
FM uV
SSB dB
AM Hz
SSB Hz
FM Hz
AM Hz
SSB Hz
FM Hz
AM dB
АМЫ `
55В W
FM W
AM W
SSB W
AM dB
SSB dB
FM dB
AM dB
FM dB
AM uV
SSB uV
ЕМ uV.
AM uV
SSB uV
FM uV
AM uV
SSB uV
FM uV
AM dB
SSB dB
SSB dB
ШІ
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р) Battery Drain at No Signal
ч) Battery Drain at Max.
Audio Output
r) Clarifier Range
5. PUBLIC ADDRESS
a) Output Power
at 10% Distortion
NOTE :
UNIT
AM mA
SSB mB
FM mA
AM mA
SSB mA
FM mA
AM kHz
SSB kHz
FM kHz
LIMIT
800
800
800
1.500
1.500
1.500
More than
More than
More than
Krk
aan
ооо
1)
Shall
have
reverse
polarity
protection
and
operable
with
positive
of
negative
grounding
2)
Operating
Power
Voltage
:
13.8V
+
15
-
20%
DC

B.
1.
INSTALLATION
LOCATION
Plan
the
location
of
the
transceiver
and
microphone
bracket
before
starting
the
installation.
Select
a
location
that
is
convenient
for
operation
and
does
not
interfere
with
the
driver
or
passenger
in
the
vehicle.
In
automobiles,
the
transceiver
is
usually
mounted
to
the
dash
panel
with
the
microphone
bracket
beside
it.
MOUNTING
AND
CONNECTION
This
radio
is
supplied
with
a
universal
mounting
bracket.
The
transceiver
is
held
in
the
bracket
by
the
four
thumb
screws.
supplied,
permitting
adjustment
to
the
most
convenient
angle.
The
bracket
must
be
mounted
with
the
screws
supplied.
The
mounting
surface
must
be
mechanically
strong.
Proceed
as
follows
to
mount
the
transceiver
:
a)
After
you
have
determined
the
most
convenient
location
in
your
vehicle,
hold
the
radio
with
the
mounting
bracket
in
the
exact
location
desired.
If
nothing
interferes
with
mounting
it
in
the
desired
position,
remove
the
mounting
bracket
thumb
screws
and
mark
the
mounting
holes
using
the
bracket
as
a
template.
Before
drilling
the
holes,
make
sure
nothing
will
interfere
with
the
installation
of
the
mounting
screws.
Drill
the
holes
and
mount
the
bracket
and
then
install
the
radio.
b)
Connect
the
antenna
cable
plug
to
the
standard
receptacle
on
the
rear
panel.
Most
CB
antennas
are
terminated
with
a
type
PL-259
plug
which
mates
with
the
receptacle
on
the
rear panel.
c)
Connect
the
DC
power
input
wire
with
the
fuse
(red)
to
+12V
DC.
This
wire
extends
from
a
plug
which
connects
to
the
rear
panel.
in
automobile
installations,
+12V
DC
is
usual-
ly
obtained
from
the
accessory
contact
on
the
ignition
switch.
This
prevents
the
set
being
left
on
accidentally
when
the
driver
leaves
the
car
and
also
permits
operating
the
radio
without
the
engine
running.
You
can
locate
the

а)
е)
ассеввогу contact on most ignition switches by tracing the
power wire from the AM broadcast receiver in the car.
Connect the black wire to ground. This is usually the
chassis of the car. Any convenient location with good
electrical contact may be used. (remove paint).
Note : See ground connection under GENERAL INFORMATION for
more detail.
Mount the microphone hanger on the side of the unit or near
the unit, using the screws supplied. .

С. GENERAL INFORMATION
1.
GROUND CONNECTION
This
radio
may
be
installed
and
used
in
any
12V
DC
negative
or
positive ground system vehicle.
a)
Negative
ground
system
:
Connect
the
Red
power
lead
from
the
radio
to
the
positive
or
(+)
battery
terminal
or
other
con-
venient
point,
and
connect
the
Black
power
lead
to
the
chassis
or
vehicle
frame
or
(-)
battery
terminal.
b)
Positive
ground
system
:
In
the
cases
of
positive
ground
вув-
|
tem,
connect
the
Black
power
lead
from
the
radio
to
the
nega-
tive
or
(-)
battery
terminal
or
other
convenient
point,
and
connect
the
Red
power
lead
to
the
chassis
or
vehicle
frame
or
(+)
battery
terminal.
ANTENNA
This
radio
is
designed
to
operate
into
a
50
ohm
CITIZENS
RADIO
antenna.
Best
result
will
be
obtained
from
your
transceiver
if
you
use
good
antenna
and
properly
install
your
antenna.
(Refer
to
the
antenna
installation
instructions
included
with
your
an-
tenna.)
A
vertically
polarized
quarter-wavelength
whip
antenna
provides
the
most
reliable
operation
and
greater
range.
The
shorter
loa-
ded-type
whip
antennas
are
more
attractive,
compact
and
adequate
for
applications
where
the
maximum
possible
distance
is
not
ге-
quired.
Also,
the
loaded
whip
antennas
do
not
present
the
pro-
blems
of
height
imposed
by
the
full
quarter-wavelength
whip.
When
installed
in
a
boat,
the
transceiver
will
operate
most
efficiently
when
the
antenna
used
has
been
especially
designed
for
marine
applications.
Mobile
whip
antennas
utilize
the
metal
body
of
the
vehicle
as
a
ground
plane.
When
mounted
on
a
corner
of
the
vehicle,
they
are
slightly
directional,
in
the
direction
of
the
body
of
the
vehicle.
For
all
practical
purposes,
however,
the
radiation
pattern
is
non-
directional.
A
slight
directional
characteristic
will
be
observed
only
at
extreme
distances.
A
standard
antenna
connector
(Type

50-239)
is
provided
on
the
transceiver
for
easy
connection
to
a
standard
PL-259
cable
termination.
Before
installing
the
transceiver
in
a
boat,
consult
your
dealer
for
information
regarding
an
adequate
grounding
system
and
pre-
vention
of
electrolysis
between
fittings
in
the
hull
and
water.
BASE STATION OPERATION
To
operate
the
transceiver
from
your
home
or
office,
using
regu-
lar
house
current
as
the
power
source,
you
will
require
a
sepa-
rate
power
supply
capable
of
supplying
5
amps
at
a
13.8V'DC
out-
put
with
a
nominal
input
voltage
of
220
volts
AC,
50/60
Hz.
Simply
connect
the
red
(+)
and
black
(-)
leads
to
the
transceiver
to
the
corresponding
DC
terminals
of
the
power
supply.
NOTE
:
Do
not
attempt
to
operate
this
transceiver
by
connecting
|
directly
to
220V
AC.
When
an
AC
power
supply
is
used
with
the
transceiver
for
base
station
operation
any
Citizens
Band
beam,
dipole,
ground
plane
or
vertical-antenna
may
be
used.
A
ground
plane
vertical
antenna
will
provide
the:
most
uniform
horizontal
coverage.
REMOTE
SPEAKER
The
external
speaker
jack
(EXT.
SPKR)
on
the
rear
panel
is
used
for
remote
receiver
monitoring.
The
external
speaker
should
have
8
ohms
impedance.
When
the
external
speaker
is
plugged
in,
the
internal
speaker
is
disconnected.
PUBLIC ADDRESS
An
external
8
ohm
4-watt
speaker
must
be
connected
to
the
(PA
SPKR)
jack
located
on
the
rear
panel
when
the
transceiver
is
used
as
a
public
address
system.
The
speaker
should
be
directed
away
from
the
microphone
to
prevent
accoustic
feedback.
Physical
se-
paration
or
isolation
of
the
microphone
and
speaker
is
important
when
operating
the
PA at
high
output
levels.
OPERATING
INSTRUCTIONS
The
JACKSON
operates
on
226
AM/FM
channels,
226
Upper
Side
Band
channels
and
226
Lower
Side
Band
channels.
When
you
receive
the
SSB
signal
in
the
proper
mode
(USB
or
LSB),