Siemens RK 761 User manual

SIEMENS
RK /\ 67 Operating Instructions
Weltempfanger -
World Band Receiver
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SIEMENS RK 761
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Continuous
Tuning
permits
reception
of
more
stations
than
ever
before
without
any
break
on
LW,
MW
or
SW
band.
Fast
response,
Three
Color
LCD
indicates
station
frequency
in
large
easy-to-read
numbers,
including
dual
time,
memory
location,
signal
strength
and
battery
life.
Direct
Access
Keypad
permits
instant
tuning
of
any
desired
frequency
from
87.5
MHz
to
108
MHz
on
the
FM
band
and
from
150
kHz
to
29999
kHz
on
the
AM
band.
Forty-Five
Memory
Pre-sets
offer
instant
access
to
your
favorite
stations
on
LW,
MW,
FM
and
Sw.
AC/DC
Power
Supplies
for
use
virtually
anywhere
in
the
world.
Supplemental
Tuning
Controls
allow
for
maximum
clarity
of
the
selected
frequency,
Dual
Time
Setting
allows
you
to
pre-set
your
loca!
time
and
UTC
World
Time*,
or
any
two
time
zones
with
instant
recall.
Scanning
Circuit
permits
you
to
check
various
frequencies
on
a-certain
band-width
and
lock
on
to
it
at
random.
Correction
Button
allows
you
to
instantly
change
incorrect
information
keyed
into
the
microprocessor,
Band
Select
Buttons
offer
instant
selection
of
any
desired
frequency
bandwidth
on
SW.
Tuning
Speed
Selector
Switch
permits
you
to
tune
stations
at
either
a
fast
or
slow
speed.
Sixty
Minute
Sleep
Timer
allows
you
to
fall
asleep
to
music
or
other
programming.
Standby
Mode
turns
on
the
radio
automatically
at
a
pre-set
tsime
either
by
buzzer
or
radio
program.
Stereo
headphone
Jack
permits
reception
of
FM
multiplex
stereo
broadcasts,
Folding
Stand
allows
you
to
position
the
radio
either
vertically
or
at
an
angle
while
maintaining
stability.
*UTC
=
Universel
Time
Coordinated.
17

Control Locations .
OPNOoar WN =
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Telescopic Antenna
Sleep Timer
Time Set
Dual Time Button
Dual Time Set
LCD Display
Power On/Off Button
Rotary Tuning Knob
Manual Tuning/Auto Scan Buttons (A) (V)
Standby Button
Frequency Select Button
Meter Select Button
Band Selectors
Numeric & Bandwidth Buttons
Error Correct Button
Enter Command Button
Memory Entry Button
External Antenna Jack
DX/Local Switch (AM Sensitivity)
FM Stereo/Mono Mode Selector; AM Narrow/Wide Mode Selector
Stereo Headphone Jack
DC Input Jack/6 Volts
9 kH2/10 kHz Step Switch
High/Low Tone Switch
Volume Control
Tuning Speed Control
Lock Switch
Alarm Set Selector
Prop-up support
Back-up battery compartment*
Radio battery compartment (main batteries for radio unit) 4x1.5 V miniatures
redundant; the new storage sysiem has made the batteries superfluous.

Choosing a Power Supply a
You can operate the RK 761 using:
— Six Alkaline AA Batteries.
-— Household AC (With AC adaptor)
— 12 Volt DC Automobile Battery (With Optionat DC adaptor)
Using
Batteries
|
1.
Press
latch
marked
open
on
both
battery
compartment
covers
in
the
direction
of
the
arrow
and
lift
off
cover.
2.
Insert
4
AA
batteries
in
the
RADIO
compartment
and
2
AA
batteries
in
the
Back-up
compartment.
Be
sure
to
position
them
as
illustrated
on
the
back
of
the
radio,
and
on
top
of
the
lift-out
ribbons
for
easy
removal.
3.
Replace
both
battery
compartment
covers
over
their
respective
compartments
and
press
down
until
you
hear
it
snap
closed.
Note:
Whenever
the
radio
is
turned
off,
the
battery
indicator
will
fash
for
about
five
seconds
to show
battery
condition.
If
the
indicator
falls
below
II
2,
the
4
MAIN
AA
batteries
should
be
replaced.
'
When
the
MAIN
batteries
become
exhausted,
the
micro-processor
will
automatically
be
powered
by
the
BACK-UP
batteries,
When
the
display
on
the
micro-processor
begins
to
fade,
replace
the
2
AA
batteries
in
the
BACK-UP
circuit.
Before
you
replace
these
batteries
in
the
MAIN
circuit
to
prevent
total
memory
loss,
BACK-UP BATTERY

Using
House
Current
(AC)
|
The
set
can
be
connected
to
the
a.c.
mains
supply
using
a
standard
6V
power
supply
-unit.
Insert
the
small
barrel
shaped
plug
into
the
jack
on
the
side
of
the
radio
mayked
DC
IN
6
V.
Plug
the
other
end
of
the
adaptor
into
a
standard
househould
outlet.
Whenever
AC
is
used,
the
batteries
are
automatically
disconnected.
Using
an
Automobile
Ba
ttery
|
The
RK
661
is
capable
of
opeating
from
a
car,
boat
or
recreational
vehicle
equipped
with
a
12
volt
DC
negative
ground
battery
using
a
DC
cigarrette
lighter
adaptor.
Insert
the
adaptor
plug
into
the
jack
marked,
DC
IN
6V
on
the
side
of
the
RK
761
and
the
other
end
into
the
lighter
of
the
vehicle.
Note:
When
the
DC
cigarette
lighter
adaptor
is
connected
to
the
radio,
the
internal
battery
supply
is
automatically
disconnected.
Caution:
Make
sure
that
the
barrel
plug
on
the
adaptor
never
comes
in
contact
with
any
metal
parts
of
the
vehicle
or
boat!
A
short
circuit
can
occur
that
may
damage
the
adaptor
or
the
electrical
system.
20

Preliminary Settings
Setting
the
Clock
|
The
time
is
displayed
in
the
24
hour
mode
since
most
shortwave
stations
operate
according
to
Greenwich
Mean
Time.
This
is
the
standard
that
is
used
throughout
the
world,
The
clock
will
start
when
4
AA
batteries
are
installed.
The
display
shows
0:00.
Oe
time
set
nu
‘ern
1.
Press
time
set.
0:00”
disappears
&
for
12
seconds
time
set
flashes.
2.
While
FLASHING
set
the
correct
time
by
pressing
the
numbered
buttons.
As
you
press
the
corresponding
button
the
number
shows
up
on
the
LCD
display.
120m 90m 75m
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60m 49m 4im
Cs)
3im 25m 2im
Ca)
19m 16m 13m
CoD); >
mm
CID
3.
If
you
press
the
wrong
number,
press
the
C
(CORRECT)
button
which
deletes
one
number
at
a
time.
Repeat
step
2
again.
;
20m
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Ct C2) Ca)
60m 49m 4im
CED CS) CeO
3im 25m 2im
Cs)
19m 16m 13m
Ce: Se)
tim
Cw)
Note:
Time
can
only
be
adjusted
when
time
setis
in
flashing
mode.
4.
Now
press
button
marked
enter.
Display
shows
minutes
and
seconds.
21

Setting
Dual
Time
|
A
second
time
zone
can
be
programmed
into
the
RK
661
such
as
your
home
time
if
you
are
travelling,
or
Greenwich
Mean
Time
for
instant
access
to
short-wave
broadcasts
or the local time where ever you may be.
1.
Press
lower
dual
time
button
and
the
display
will
show
dual.
2.
Press
time
set
button.
Clock
time
will
disappear
&
time
set
will
flash
for
12
seconds.
3.
While
FLASHING
set
the
correct
time
by
pressing
the
numbered
buttons.
As
you
press
the
corresponding
button
the
number
shows
up
on
the
LCD
display.
O sleep
c48
time
set
Cis
time
O sleep
cs
C) time
set
4,
If
you
press
the
wrong
number,
press
the
C
(CORRECT)
bution
which
deletes
one
number
at
a
time.
Repeat
step
3
again.
5.
Now
press
button
marked
enter.
Display
shows
minutes
and
seconds.
8 ts) 3
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~~ ao 3
CG) G
60m 49m 4im
Ca) CD) GCG
31m 25m 2im
Cs)
19m 16m 13m
Ca)
3
‘
6.
By
pressing
the
lower
dual
time
button
now,
the
LCD
display
will
once
again
show
the
clock
time.
7.
To
verify
dual
time,
press
the
upper
dual
time
button
to
display
your
OTHER
time
zone.
When
you
release
the
button
the
clock
will
show
your
current
local
time.
DUAL
22

Band Selection
There
are
four
band
selector
buttons
located
just
beneath
the
LCD
display,
fm lw mw sw
a | GE
Band
Frequency
Range
Program
Type
FM
87,5
-
108
MHz
Standard
FM
LW
150
-
519 kHz
Longwave
MW
520
-
1620
kHz
Standard
AM
SW
1621
-
29999
kHz
SW/13
Sub-Bands
The
AM
ranges
are
continuously
tunable
from
150
kHz
to
29999
kHz.
1.
Turn
radio
on
by
pressing
power
button.
Display
will
show
last
band
and
frequency
selected.
2,
By
pressing
any
one
of
the
four
band
selector
buttons
the
display
shows
the
band
selected
and
a
random
frequency
within
that
band.
Note:
When
you
select
SW
you
only
have
to
press
the
button
marked
meter,
and
then
any
one
of
the
numbered
buttons
depending
upon
what
band
you
want
to
listen
to.
The
display
will
show
the
band
you
selected
and
a
random
frequency
within
that
band.
|S memories
4
im/lw/mw/13sw synthesized receiver 45
23

You may select any frequency using four different tuning methods:
~ Direct Tuning
-~ Manual Tuning
— Scan Tuning
— Memory Tuning
Direct
Tuning
|
You
may
KEY
IN
a
specific
band
(120m,
49m,
16m)
by
pressing
the
appropriate
button.
The
exact
station
is
then
selected
by
pressing
the
buttons
corresponding
to
the
station
frequency.
Example:
To tune 100.70 MHz on the FM band, follow this procedure:
1. Press the power button to turn on the radio.
2. Press the button marked, freq (Frequency).
3,
Press
the
corresponding
buttons,
marked
(1),
(0),
(0).
(),
(7),
(0).
That
exact
frequency
will
now
show
up
in
the
display.
4,
Press
the
button
marked
enter
within
twelve
seconds.
The
frequency
and
band
will
now
show
up
in
the
display.
The
S(GNAL
STRENGTH
will
also
show.
Note:
Be
sure
to
press
the
decimal
point
()
in
100.70
MHz,
otherwise
the
display
will
show
Sw,
(10070
kHz).
automatically.
5.
Extend
the
antenna
all
the
way
and
rotate
for
best
FM
reception.
6.
Adjust
the
VOLUME
and
TONE
controls
for
the
desired
sound.
7.
When
selecting
a
stereo
FM
station,
make
sure
that
the
FM
mode
switch
is
in
the
STEREO
position.
= 10
'
manvial tuning
120m 90m 75m
pi Ze
auto scan ee
eT
= |
AWS
24

Manual
Tuning
—
|
To
select
a
station
you
do
not
know
the
frequency
of,
use
the
manual
tuning
(\)(V)
buttons
or
the
ROTARY
TUNING
control
on
the
side
of
the
radio.
manual tuning
is
auto
scan
q
1. Press the power button to turn on radio.
2.
Select
a
band.
:
3.
Press
repeatedly
the
(A)
or
(V)
buttons
to
reach
a
desired
frequency.
Press
and
hold
the
(A)
or
(V)
buttons
for
at
least
a
half
second
or
more
to
change
frequencies
rapidly.
Rotate
the
TUNING
knob
until
the
desired
frequncy
or
station
is
tuned
in
using
the
SIGNAL
STRENGTH
INDICATOR
in
the
display
for
the
best
reception.
memories
45
Im/twimw/t3sw synthesized receiver
Note:
When
you
repeatedly
press
the
(A)
or
(V)
buttons,
the
frequencies
change
in
increments
of:
FM: 50 kHz
LW: 9 kHz
MW: - 9kHzor 10 kHz
SW: 5 kHz
25

Turning
the
ROTARY
TUNING
Knob
with
the
TUNING
SPEED
CONTROL
set
on
FAST
will
change
each
band
as
follows:
FM: 100 kHz
LW: 9 kHz
MW: 9 kKH2/10 kHz
SW:
5.
kHz
;
When
set
on
SLOW,
the
frequencies
change
as
follows:
FM: 50 kHz
LW: 1 kHz
MW: 1 kHz
SW: 1 kHz
With
the
TUNING
SPEED
CONTROL
set
on
LOCK,
ROTARY
TUNING
will
not
function.
Sean
Tuning
|
Use
scan
tuning
to
quickly
locate
a
station
or
to
monitor
several
stations
within
a
specific
band.
1.
Turn
on
radio
by
pressing
power
button.
2. Select a band.
.3.
Adjust
antenna
or
radio
position
depending
on
selected
band.
4.
Press
and
hold
the
(A)
or
(V)
buttons
and
the
radio
will
scan
all
the
frequencies
in
that
band,
and
will
stop
automatically
each
time
it
lands
on
an
active
station.
Signal
strength
is
recorded
on
the
SIGNAL
STRENGTH
INDICATOR,
Hd
fm lw mw sw manual tuning
Cc» CoG) >
120m 90m 75m > a-
GID C2) CG)
60m 49m 4im MS
CG) G CG
3im 25m 7m auto scan Onn
5.
Press
and
hould
the
(A)
or
(V)
buttons
again
to
resume
scanning.
When
you
reach
the
upper
or
lower
limits
of
the
band,
the
scanning
starts
all
over
again
as
long
as
the
button
is
depressed.
Memory
Tuning
|
You
may
store
up
to
eighteen
different
frequencies
on
the
SW
band
and
up
to
nine
different
frequencies
on
each
of
the
other
bands
for
instant
selection
of
your
favorite
stations.
- 26

Storing
a
Frequency
|
1. Press power button to turn on radio.
2.
Turn
to
any
frequency
using
any
of
the
previously
mentioned
tuning
methods.
3.
Press
the
button
marked
M
for
MEMORY.
It
will
start
flashing
in
the
display
for
15
seconds
during
which
time
press
any
of
the
buttons
marked
1
-
9
on
the
keyboard
and
your
station
will
be
stored
in
that
memory
position.
For
the
SW
band
frequencies
press
1
-
9
and
then
01
-
09
for
a
total
of
18
SW
memory
positions.
The
display
will
show
the
memory
position
the
station
is
now
stored
in.
You
may
store
your
stations
in
any
sequence
you
want.
You
do
not
have
to start
with
1.
:
manvol tuning
45 memories
w/13sw synthesized receiver
Recalling
a
Frequency
|
1. Press power button to turn on radio.
2.
Select
a
band
in
which
a
station
is
stored
that
you
want
to
recall.
3,
Press
any
of
the
NUMDERED
buttons
for
a
desired
:station
and
the
radio
will
instantly
tune
to
it
and
display
that
frequency
and
the
MEMORY
position
number.
/f
you
want
to
change
to
another
stored
station,
just
press
any
other
numbered
button
for
access.
Zim auto scan on |
{
13m
BI
C=
Fete
27

With
the
RK
‘761
YOU
Can
fa}
asleep
to
your
favorite
Station
by
Pressing
the
Sleep
button,
OF
wake
you
to
the
Morning
Aews,
or
an
alarm
buzzer.
Make
the
following
S@ttings
With
the
power
offt
3.
When
you
reach
YOur
desire
turn-on
time,
press
enter,
Standby
Stops
flashing
(after
8PProximately
3
Seconds)
your
turn-or
time
is
locked
jn
and
the
Clock
ime,
4.
To
Verity,
press
Standby
Dutton
Again.
Pregs
Standby
once
more
8nd
the
clock
returns
to
the
Current
time.
5.
You
May
select
radio
or
buzzer
alarm
to
wake
you
by
Setting
Standby
-
HYWS/
4ad/0
Selector
Switch
on
the
Side
of
the
radio,
ed
receiver
45,
Memories
AWS
28

Setting
the
Sleep
Timer
|
1.
Press
sleep
button.
The
icon
shows
above
the
frequency
read-out
in
the
display.
That's
all
there
is
to
it
2.
To
turn
off
the
radio
before
it
automatically
turns
itself
off,
press
the
power
button.
power
29

|
Special
Tuning
Methods
and
Controls
|
In
addition
to
the
standard
tuning
methods
described
previously,
use
the
following
controls
for
special
operations.
AM
Sensitivity:
Distance/Local
Selectivity
Switch
This
switch
adjusts
the
receiver's
sensitivity.
When
you
listen
to
a
strong
station
and
the
signal
is
slightly
distorted,
set
the
switch
to
the
LOCAL
position
for
best
reception.
For
normal
or
weak
station,
set
the
switch
to
the
DX
position
for
maximum
sensitivity.
f
ws
AM: Narrow/Wide Selectivity Switch
To
reduce
interference
from
adjacent
station,
set
this
switch
to
the
MARR
position
and
the
interference
will
be
suppressed.
For
maximum
selectivity,
leave
the
switch
in
the
W/DE
position.
AM SENS
°DX
® LOCAL
AM
ee
S| eNARR
*WIDE
Headphone
Use
|
While
not
a
control,
you
may
consider
using
HEADPHONES
to
obiain
the
best
audio
clarity
when
listening
to
SW.
Since
many
SW
stations
broadcast
only
margina
signals,
using
HEADPHONES
will
enable
you
to
distinguish
between
the
signal
and
the
noise
usually
encountered
at
night.
Be
sure
that
the
HEADPHONES
terminate
in
a
1/8
inch
plug,
which
is
inserted
into
the
HEADPHONE
jack
located
on
the
left
side
of
the
radio.
When
the
HEADPHONES
are
plugged
in
the
speaker
is
muted.
Because
the
radio
is
capable
of
receiving
FM
multiplex
steeo,
the
HEADPHONES
should
be
stereo
capable
so
that
you
listening
enjoyment
will
be
enhanced.
When
listening
to
stereo
FM,
be
sure
that
the
FM:
STEREO/MONO
switch
is
set
to
the
STEREO
position.
This
switch
is
located
on
the
left-hand
side
of
the
radio,
just
above
the
HEADPHONE
jack.
30

|
Lock
Switch
Use
|
auto scan on —
AWS
radio
4
direct
access
standby
External
Antenna
Use
To
obtain
optimum
performance
from
your
RK
661,
especially
when
listening
to
SW
or
LW,
an
external
antenna
should
be
used,
if
at
all
possible.
The
antenna
is
connected
to
the.
EXTERNAL
ANTENNA
ADAPTER
and
then
plugged
into
the
EXTERNAL
ANTENNA
jack
located
on
the
left
side
of
the
radio.
;
EXT
ANT
MW
Step
Selector
Switch
|
Located
on
the
right
side
of
the
RK
661,
just
beneath
the
ROTARY
TUNING
knob
is
Switch
marked,
MW
STEP.
9K/10K.
This
switch
selects
the
incremental
frequency
STEPS
for
the
MW
band,
depending
upon
your
geographic
location.
In
the
USA,
70K
STEPS
are
used,
so
the
switch
should
be
Set
to
its
lowest
position.
In
other
parts
o
the
world
where
they
use
9K
STEPS,
move
the
switch
to
the
uppermost
position.
Bh
MW STEP
31

Technical Data |
Frequency range “FM (MHz) 87,5-108
' AM (kHz) 150-29999
The AM ranges are continuously tunable from
150 kHz to 29999 kHz.
SW (MHz) SW1 2,30-2495 (120-m-Band)
SW2 3,20-3,40 (90-m-Band)
SWS 3,90-4,00 (75-m-Band)
SW4 4,75-5,06 (60-m-Bana)
SW5 5,95-6,20 (49-m-Bana)
SW6 7,10-7,30 (41-m-Band)
SW7 9,50-9,90 (31-m-Bana)
SW8 11,65-12,05 (25-m-Band)
SW9 13,60-13,80 (21-m-Band)
SW10.15,10-15,60 (19-m-Band)
SW11 17,55-17,90 (16-m-Band)
SW12 21,45-21,85 (13-m-Band)
SW13 25,67-26,10 (11-m-Band)
‘ MW (kHz) 520-1710
LW (kHz) 150-519
max. Output power (W) 0,5
Batteries (IEC) 4x 1,5 V Mignon, R6
2 x 1,5 V Mignon, R6
External Power supply 6 V = (standard)
Size in cm (BxHxT) 19,6 x 12,5 x 3,6
Weight in g 620
32