Kenwood R-600 User manual

23
DW
10.
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Amateur
Rad

You
are
now
the
owner
of
an
exciting
product,
the
R-600
communications
receiver.
Please
read
this
instruction
manual
carefully
before
placing
your
receiver
in
service.
The
unit
has
been
carefully
engineered
and
manufactured
to
rigid
quality
standard,
and
should
give
you
satisfactory
and
dependable
operation
for
many
years.
AFTER
UNPACKING
SHIPPING
CONTAINER:
Save
the
box
and
packing
in
the
event
your
unit
reeds
to
be
transported
for
remote
operation,
mainten-
ance
or
service.
CONTENTS
FEATURES
sent
SPECIFICATIONS................
SECTION
1.
INSTALLATION
SECTION
2.
CONTROLS...
SECTION
3.
OPERATING
INSTRUCTIONS.........
SECTION
4.
ENJOYING
SW
RECEPTION.
OPTIONAL
ACCESSORIES...
BLOCK
DIAGRAM...
SCHEMATIC
DIAGRAM..........-
‚ADDITIONAL
INFORMATION
.
FEATURES
.
The
Model
R-600
is
a
professional
class
general
co-
verage
receiver
for
broadcast
and
shortwave
listening.
It
covers
the
150
kHz
through
30
MHz
bands
for
re-
ception
of
SSB,
CW
and
AM.
.
The
heart
of
the
receiver
includes
a
highly
stabilized
VFO
and
PLL
synthesizer
for
trouble-free
reception.
.
The
circuits
include
band-pass
filters
interlocked
with
the
band
selector
switch
for
eade
of
tuning.
.
The
ceramic
filter
circuit
is
also
interlocked
with
the
mode
switch.
Selectivity
matching
each
receive
mode
ks
obtained
at
all
times.
SSB/CW
>
2.7
kHz
AM-NARROW
>
2.7
kHz
AM-WIDE
>
6
kHz
.
The
built-in
NB
(noisw
blanker)
circuit
reduces
pulsat-
ing,
ignition
type
noises.
.
The
speaker
unit
is
placed
behind
the
front
panel
for
better
tone
quality.
Downloaded by
RadioAmateur.EU
10.
11.
12.
.
When
used
in
combination
with
a
transmitter,
the
MUTE
terminal
places
the
R-600
in
STAND-BY
mode.
.
The
RF
attenuator
provides
20 dB
attenuation,
making
it
possible
to
receive
strong
local
signals
without
dis-
tortion.
.
The
frequency
display
uses
easy-to-read
LED,
which
indicate
true
operating
frequency
accurate
to
the
1kHz
order.
The
antenna
terminals
can
be
selected
according
to
the
signal
frequency
or
the
antenna
system
employed.
A
record
terminal
is
located
on
the
front
panel.
The
output
level
is
automatically
controlled
to
the
op-
timum
level
independent
of
the
volume
contro!
posi-
tion.
A
fuse
is
installed
in
the
antenna
circuit
to
prevent
da-
mage
from
lightning.
CAUTION:
To
protect
your
equipment,
use
a
lightning
arrestor.

@ Doublet Antenna
This
type
of
antenna
is
suitable
for
reception
of
a
specific
band.
The
relation
between
the
overall
length
"L"
and
the
tuned
fre-
quency
is:
143
468
Freq
(MHz)
L
(feet
-
freq
(MHz)
This
antenna
is
directional.
Signal
strength
is
maximum
when
the
antenna
is
at
a
right-angle
(broadside)
to
the de-
sired
signal
and
the
frequency
for
which
the
antenna
is
cut.
It
must
be
used
with
a
75-ohm
coaxial
feeder.
(See Fig. 1-2)
L{m} =
@ Inverted V Antenna
This
is
a
modified
doublet
antenna
designed
to
be
installed
ona
single
pole
or
support.
The
characteristics
of
this
anten-
na
are
almost
the
same
as
those
of
a
doublet.
The
overall
length
"L"
is
a
little
more
than
that
of
a
doublet,
and
is
com-
puted
thus:
148
486
Lim)=
Freg
(MHz)
Lise:
Satz
(See Fig. 1-3)
@ Multiband Antenna
This
antenna
uses
more
than
one
doublet
for
multiband
re-
ception.
The
overall
length
“L”
is
the
same
as
that
of
the
doublet.
If
the
lengths
L1,
L2
and
L3
are
cut
for
7
MHz,
14
MHz
and
28
MHz,
then
L1
is
tuned
to
21
MHz
(3x
7
MHz),
permitting
reception
on
4
amateur
bands
7
~
28
MHz.
When
used
only
for
reception,
this
antenna
will
cover
the
6~30
MHz
SW
bands.
(See
Fig.
1-4)
@ Trap Vertical Antenna
Antennas
designed
exclusively
for
BCL
are
available
commer-
cially,
or
may
be
built
yourself.
Antennas
designed
for
HAM
band
(3.5
~
28
MHz
or
7
~
14
MHz)
operation
will
provide
satisfactory
broadcast
reception
for
SW
stations
near
the
HAM
bands.
Antennas
of
this
type
are
most
sui-
table
for
the
listener
who
does
not
have
enough
space
for
installation
of
a
doublet
or
long-wire
antenna.
{See
Fig.
1-5)
@ Yagi Antenna
The
Yagi
antenna
is
best
suited
for
reception
in
a
specific
band.
This
antenna
features
excellent
directivity;
it
provides
high
gain
and
minimizes
interference
when
properly
installed.
Yagi
antennas
commercially
available
are
designed
only
for
HAM
band
reception.
For
SW
reception,
it
will
be
necessary
for
you
to
construct
such
antennas
yourself.
(See
Fig.
1-6)
@ Grounding
Normally,
the
receiver
will
operate
without
being
grounded.
However,
a
good
earth
ground
improves
the
efficiency
of
an-
tennas
such
as
a
long-wire.
It
also
eliminates
inductive
noise
and
protects
the
operator
from
electric
shocks
through
the
AC
lines.
To
ground
the
receiver,
use
a
copper
or
brass
plate
(or
net
or
rod)
connected
to
a
copper
wire,
and
bury
it
in
the
ground
about
1~7
feet
(0.3~
2.0
m)
deep.
A
copper
water
pipe
(not
plastic)
may
also
be
used.
Never
use
a
gas
pipe
for
ground-
ing.
If
the
receiver
cannot
be
well
grounded
the
counterpoise
(antenna
radial)
would
be
acceptable.
1.5 SPEAKER
Audio
output
from
the
R-600
is
1.5
watts
into
8
ohms.
The
R-600
has
a
built-in
speaker.
However,
if
an
external
speaker
is
desired
(such
as
the
KENWOOD
SP-100),
simply
connect
it
to
the
EXT.SP
jack
on
the
rear
panel.
The
speaker
may
be
any
good
8
ohm
permanent
magnet
type,
4
inches
or
larger.
The
internal
speaker
is
disconnected
when
an
ex-
ternal
speaker
is
used.
`
1.6 HEAD PHONES
Any
tow-Z
(4
~
16
ohm)
headphones
may
be
used
with
the
R-600.
connect
the
headpnones
to
the
front-panel
phone
jack.
If
a
speaker
is
connected
to
the
receiver,
it
will
automatically
be
disconnected
when
the
headphones
are
plugged
into
the
jack.
1.7
POWER
REQUIREMENTS
The
R-600
operates
from
100/120/220/240
V
AC,
50/60
Hz.
Stability
is
not
affected
within
10%
of
line
voltage
varia-
tion,
due
to
the
built-in
regulated
power
supply
To
change
the
voltage
selector
position,
refer
to
Section
3.6.
CAUTION:
1.
Operation
of
this
receiver
with
a
wrong
power
source
may
result
in
serious
damage.
2.
A
power
fuse
is
placed
on
the
PLL
PC
board.
The
fuse
rating
should
be
3A.
1.8 CONNECTION
5002 ANT Terminal
Connect
a
high
impedance
antenna
such
as
a
long
wire
antenna.
502 Terminal
Connect
a
low
impedance
antenna.
UHF
coaxial
ANT
connector
Use
a
low
impedance
antenna.
The
antenna
feeder
should
be
a
coaxial
cable
equipped
with
a
UHF
connector.
GND Terminal
It
is
recommended
that
a
short,
heavy
ground
lead
be
con-
nected
to
the
GND
terminal
(rear
panel)
to
prevent
the
po-
sibility
of
electric
shock.

R-600 SPECIFICATIONS
ENGLISH
SECTION 1. INSTALLATION
150 kHz-30.0MHz
AM, SSB, CW
Sensitivity (10 dB or more S+N/N, Antenna impedance:
502)
150 kHz - 2 MHz
AM (NARROW, TONE:
Center).
SSB/CW.
2 MHz- 30 MHz
AM (NARROW, TONE:
Center).
SSB...
Image Ratio .
IF Rejection..
Selectivity:
AM (WIDE)...
AM (NARROW)... eee
SSB/CW........... eee
Antenna Impedance...............
Audio Output...
Audio Load
Impedance.............. eene
Power Consumption
Power Requirements
Semiconductors un
Dimensions EN
« 50V
SuV
… 54N
.. O.SuV
. More than 60 dB
. More than 60 dB
6 kHz at- 6 dB,
18 kHz at - 50 dB
2.7 kHz at - 6 dB,
5 kHz at - 50 dB
2.7 kHz at - 6 dB,
5 kHz at - 50 dB
509/5000
1.5W min. (82 load,
1096 distortion)
4~16Q external speaker or
headphones
… 16W
.. 100, 120, 220, 240V, AC,
50/60 Hz
17 ICs, 11 FETs,
40 transistors, 42 diodes,
1 display
W 299mm(12-3/4 inch)
H 110 mm (4-5/16 inch)
D 200mm(7-7/8 inch)
4.5 kg (9.9 Ibs)
1.1 GENERAL
To obtain maximum performance from your R-600 receiver,
it is recommended you read Sections 2 and 3 in their entirety
before attempting to operate the unit.
1.2 ACCESSORIES
The following accessory items are included:
1. Operating manual (B50-3933-00) ...
2. AC power cable (E30-1643-15)
3. Wire for antenna
4.
5.
Miniature Speaker plug (E12-0001-05) .
Fuse (3A) (Power fuse) (F05-3032-05) ..
Fuse (0.1A) (ANT fuse) (FO5-1013-05) ..
1.3 OPERATING LOCATION
As with any solid state electronic equipment, the R-600
should be kept from extremes of heat and humidity. Choose
an operating location that is dry and cool, and avoid operat-
ing the receiver in direct sunlight.
1.4 ANTENNA
€ Antenna and Grounding
Installation of antenna and grounding is important for opti-
mum reception of short-wave, broadcast or amateur radio
signals. A good outdoor antenna will provide the best results.
The following describes various antenna types and their in-
stallation.
NOTE:
A simple method is to install the supplied wire antenna as
high as possible, it must be extended to its full length for
good results.
€ Long Wire Antenna
This is the simplest antenna, using about 30 — 1000 feet
(10 ~ 30m) of wire installed between poles, trees or other
convenient supports. The antenna wire should be heavy
8-gauge vinyl insulated, stranded wire or 4-gauge copper
wire or Copperweld. This type of antenna must be installed
horizontally to a length of 60 feet (20 m) or more, and be po-
sitioned as high as possible, Note that it should be as far
away as possible from AC power lines, buildings, trees and
other objects.
Fig. 1-1 shows an inverted L antenna. Other antenna types
such as sloping, vertical, etc. are also possible.
A
long-wire
antenna,
when
installed
in
an
open
area,
is
suitable
for
all-band
operation.
(See
Fig.
1-1).

OUTSIDE VIEWS
AUSSENSEITE
VUE EXTERIEURE
VISTA EXTERIOR
Fig. 2-1
Fig. 2-2

"SECTION
2.
CONTROLS
[FRONT
PANEL]
(See
Fig.
2-1)
4. POWER Switch
This
switch
controls
power
to
the
R-600.
2. Meter
Indicates
received
signal
strengh
in
S
unit
and
SIMPO
code.
`
3.
Digital
display
The
digital
display
unit
indicates
operating
frequency.
4, MODE Switch
AM-WIDE
With
the
MODE
switch
in
this
position,
bandwidth
is
6
kHz.
AM-NARROW
Use
this
positon
when
interference
is
present
at
the
AM-
WIDE
setting.
Bandwidth
is
2.71kHz
reducing
interference
for
easier
AM
reception.
USB
(Upper
Side
Band)
Switch
This
switch
is
used
to
receive
SSB
(LSB)
signals.
LSB/CW
(Lower
Side
Band/Continuous
Wave)
Switch
This
switch
is
used
to
receive
SSB
(LSB)
or
CW
signals.
5.
BAND
Switch
Use
this
switch
to
select
the
frequency
band
in
MHz.
Calibration
is
from
O
to
29
at
1
MHz
intervals.
6. Tuning Knob
This
selects
the
receiver's
operating
frequency.
First
select
the
frequency
in
MHz
by
the
BAND
switch,
then
the
fre-
quency
in
kHz
by
the
tuning
knob.
7.
RF
ATT
(Attenuator)
Switch
This
switch
allows
20
dB
input
signal
attenuation.
8.
TONE
Control
This
adjusts
audio
tone
quality.
Normally
set
at
the
center
position.
9.
NB
(Noise
Blanker)
Switch
Turn
ON
to
reduce
pulsating,
ignition-type
noises.
10.
AF
GAIN
Control
This
varies
the
audiooutput.
Turning
clockwise
will
increase
the
volume.
11.
RECORD
Jack
This
terminal
is
used
for
recording
broadcasts
on
tape.
Connect
it
to
the
LINE
IN
on
your
tape
recorder.
The
output
level
at
this
terminal
is
constant,
regardless
of
the
R-600
{Output
level:
300
mV/2
KO,
12.
PHONES
jack
This
jack
accepts
4
to
16
ohm
impedance
headphones.
Stereo
headphones
may
be
used.
The
optional
HS-6
head-
phone
is
best
suited.
[REAR
PANEL]
(See
Fig.
2-2)
13.
UHF
Antenna
Connector
For
connection
of
a
50—
75
ohm
coaxial
cable
with
UHF
con-
nector.
14.
50002
ANT
Connector
Connect
a
high
impedance
long-wire
antenna.
15.
502
Antenna
Connector
For
connection
of
a
low
impedance
antenna.
16.
GND
Terminal
Ground
terminal.
The
ground
cable
should
be
as
short
as
possible.
Select
a
good
ground
point.
17.
MUTE
terminal
For
use
in
combination
with
a
transceiver
or
transmitter.
The
R-600
will
mute
by
grounding
this
terminal.
CAUTION:
The
antenna
input
must
be
externally
switched
off
when
used
with
a
transmitter
or
tranceiver,
during
transmit.
18.
EXT
SP
jack
For
connection
of
an
external
speaker
of
4-16
ohm
impe-
dance.
The
optional
speaker
SP-1
00
is
best
suited.
19.
VOLTAGE
SELECTOR
AC
voltage
selector
switch.
BEFORE
operating,
set
this
switch
to
your
local
line
voltage.
Consult
the
power
company
if
in
doubt.
20.
AC
Connector
Connect
the
supplied
AC
power
cable.

SECTION. 3. OPERATING INSTRUCTIONS
3.1 RECEPTION
Connect the unit by referring to Fig. 1-8 in Section 1. For
best results, the antenna is important.
When using a low impedance antenna, connect it to 502
terminal. For good reception, connect the low impedance
antenna through a coaxial cable to the UHF receptacle.
When using a long-wire antenna, connect it to the 5002
ANT terminal.
Strong signals can be received clearly without the re-
ceiver being grounded.
However, a good earth ground is recommended for weak
signal.
If an earth ground is not available, a counterpoise (antenna
radial} would be acceptable.
1) Reading the Operating Frequency
The R-600 Digital Display accurately indicates fre-
quency.
Refer to Fig. 3-1
AUA
Eu.)
MHz kHz
Fig. 3-1 Digital Display
2) Setting the Frequency
The BAND switch dial is calibrated at 1 MHz intervals
from O to 29. Fig. 3-2 shows the dial set to 9 MHz.
Fig. 3-2 BAND Setting 9 MHz
NOTE:
When receiving a signal below 150 kHz, the receiver
performance might be deteriorated.
3.2 MODE SWITCH
When receiving strong local signals, set this switch to AM
WIDE. This enhances reception with little interference,
providing excellent tone quality.
When unwanted signals are present near the received fre-
quency, set the switch to AM NARROW. This narrows the
bandwidth, reducing radio interference.
For reception of SSB, set this switch to USB or LSB/CW
according to international practice.
For reception of CW signals, set this switch to LSB/CW.
3.3 RF ATT SWITCH
If excessively strong nearby stations or high-power night
broadcasts are present within the band being received, a
desired signal may be blocked by receiver desensitization.
Also, if a signal is very strong, the meter may deflect off-
scale. Press the RF ATT switch.
3.4 NB SWITCH
For pulse type noise, such as generated by automobile ig-
nition systems, turn the NB switch ON. The noise will be
reduced or eliminated. Power line, radar, "ORM" and at-
mospheric white noise will not operate the blanker.
3.5 MUTE TERMINAL
The R-600 has a mute circuit for use in combination with a
transceiver or transmitter
The R-600 RF stage will mute by grounding the MUTE ter-
minal.
——
Transmitter
Fig. 3-3 MUTE terminal

3.6 AC VOLTAGE SELECTION
The R-600 will operate on 100, 120, 220 or 240 V AC 50
or 60 Hz. For proper operation, select the power setting
closest to your local line voltage.
If you are not sure of the local line voltage, contact the uti-
lity company. To reset the voltage selector, FIRST DIS-
CONNECT THE POWER CABLE. Align the selector with
the desired voltage using coin or screwdriver.
NOTE:
For DC operation, contact an authorized KENWOOD
dealer.
Fig. 3-4 AC Voltage Selection
3.7 FRONT FEET
The front panel can bei elevated for operating conven-
ience by extending the front feet.
Turn the front feet clockwise and pull down.
Then
turn
it
counterclockwise
to
lock.
Downloaded by
RadioAmateur.EU
RECEIVING AM (MW or SW)
BROAD CAST
€ Initial Control Settings
€ Operation
@ MODE Switch
BAND Switch,
Tuning knob:
TUNING
@ AF GAIN Control (VOLUME)
AF GAIN
"
2
o
m
(4) TONE Control
TONE
a
2
o
tow

NOTE:
Radio stations throughout the world are listed in the
WORLD RADIO TV HANDBOOK or similar publications.
General radios frequency allocations are listed on page 10
ofthis manual.
€ For Reducing Interference
MODE Switch
AM-NARROW
(2) Main turning:
"RETUNING
@ AF GAIN Control: READJUSTMENT
AF GAIN
€ For Reducing Distortion
Caused by Strong Signal
(D RF ATT Switch: ON
Main turning:
RETUNING
CAUTION:
At a frequency of ‚000 MHz or 30,000 MHz, an inside
spurious sometimes occurs.

RECEIVING SSB or CW SIGNAL
€ Initial Control Setting
Sb es À
OFF (CENTRE:
@ Operation
MODE Switch:
‘USB or LSB/CW
BAND Switch
Tuning knob:
TUNING
(8) AF GAIN Control (VOLUME)
Ga
@ TONE Control
"a
SECTION 4.
ENJOYING SW RECEPTION
ENJOYING SW RECEPTION
Every country in the world has broadcast stations, and
most countries have Amateur radio stations. The earth is
virtually surrounded by innumerable radio waves, provid-
ing us with information and news. Your R-600 intercepts
many of these transmissions.
Radio waves cover a wide range of frequencies including
long-wave (LF), medium-wave (MF), and short-wave (SW)
or high frequency (HF). Since short-wave signals travel
around the earth, it is fun receiving exciting news and exo-
tic music from overseas broadcast stations or transmis-
sions from Amateur radio stations and various industrial,
marine, government, and military. It is also interesting to
collect reception or verification (QSL) cards. To ensure
maximum enjoyment of short-wave reception, it is impor-
tant to know the features of short-wave signals - how the
signals travel around the earth, the method of receiving
signals most effectively, the method of identifying the
country broadcasting programs, etc.
Propagation of Radio Waves By the lonosphere (See
Fig. 4-1)
The earth is surrounded by the atmosphere. The atmos-
pheric molecules existing between 50 km and 500 km
above the earth collide with ultraviolet rays and electrons
emitted from the sun, and a layer of electrons and ions is
formed. This layer is called the ionosphere and it has a
characteristic of refracting radio waves. Radio waves
emitted from the antenna of a transmitter can be classified
as surface waves and ionospheric waves. Surface waves
travel along the earth directly, and are used mainly for me-
dium frequency AM broadcast and TV and FM broadcast.
lonospheric (sky) waves travel a long distance because
they are refracted repeatedly between the ionized layer
and the earth. As short-wave broadcasts propagate by
ionospheric waves, their signals offen reach around the
earth. The surface wave tends to weaken at HF and short-
wave frequencies and therefore travel only a short dis-
tance, while ionospheric waves persist as the frequency
increases (up to a certain point, determined by ionization
intensity) and travel long distance with little path loss. Ul-
tra high frequencies pass through the ionized layer, and
thus the service area is limited to a short distance from the
antenna. The ionosphere is divided into three layers, DE
and F, as shown in Fig. 4-1.
The electron density in the layer is increased in steps ac-
cording to the distance from the sun. High frequency
waves are refracted by the F layer and travel a long dis-
tance.