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OPERATION
e Before
commencing
operation,
check
to
make sure all antenna, amplifier and power con-
nections are properly made.
1. Set the volume control on the amplifier
to minimum
position,
and amplifier function
switch to TUNER position (or to AUX position
if the tuner is connected to AUX terminal).
2. Turn
on
the
amplifier
and
press
the
Power button on the tuner.
3. Depress
FM
or AM button of the tuner
function selector.
On RT-830L,
select among
FM, MW,
and LW
buttons.
4. Tune in to the desired station by means
of tuning knob.
5. Raise
the volume
to the desired
level,
and enjoy listening.
HUM AND NOISE
Hum
often
accompanies
activation
of power
supply.
If hum is generated, try replugging the
power
cord into the wall outlet, reversing the
plug this time.
Other
possible causes of hum
include
improper
routing of connecting cords
(try
changing
cord
position),
or
incorrect
pin-plug
insertion.
Check
all connections
if
hum persists.
If noise
is introduced,
it is usually
caused
by
improper
positioning
of antenna
cable
or
improper
antenna
installation.
Use
a 75-ohm
cable for outdoor
FM
antenna
and minimize
multipath
to obtain
optimal
signal reception.
Note that during signal reception the unit may
pick
up
noise
from
other
household
electric
appliances (as when switching power on or off).
In that case, check the relative location of the
appliances and keep them away from the unit,
or vice versa, as necessary.
Note 1: In
a
location
near
a
broadcasting
station, very strong signals may cause noise or
distortion,
depending
on the type of antenna
used. In that case, install an attenuator between
the antenna and the tuner.
Note 2: Inside a concrete building, FM signals
are weakened and satisfactory reception may be
difficult.
An
outdoor
FM
antenna
will
best
remedy such a situation.
VOLTAGE SELECTION
Not available for U.K., Canada and Scandinavia
The
unit
is a variable voltage equipment
that
can run on 120V, 220V or 240V power supply.
Your
unit
should
already
be
preset
at the
proper voltage for use in your area. However, if
you move
to an area where
the power supply
voltage is different, consult your dealer.
SPECIFICATIONS
FM TUNER SECTION
Usable Sensitivity (mono)
. .
50 dB Quieting Sensitivity:
. - -10.8 dBf/1.9 4 V (300 ohms)
MONS
rea
demise
PUE 16 dBf/3.5 uV
Süireb.
iu
sum
Dae
S 39.4 dBf/50 uV
Signal-to-Noise Ratio (at 65 dBf} :
MONG...
<:.. oerte
d 80 dB
SIBTEO
25
xoxo:
pud d 73 dB
Harmonic Distortion (at 65 dBf}:
TRMELAS FERVIPess HG 0.08% (mono), 0,3% (stereo)
Frequency Response........ 35 to 15,000 Hz, *1.5 dB, —1.5 dB
Captura'Retias oco apa 4 1.5 dB.
Alternate Channel Selectivity
(EROT KHa)
foie
leu 60 dB
Spurious Response Ratio. .... . 85 dB
Image Response Ratio. ...... 55 dB
IF Response Ratio
......... 90 dB
AM Suppression Ratio. ..... 3 55 dB
Stereo Separation.......... 100 Hz/1 kHz/10 kHz,
36 dB/40 dB/32 dB
Subcarrier Product Ratio.
. . . . 65 dB
.300 ohms balanced,
75 ohms unbalanced
Antenna Input...........
AM TUNER SECTION
MW
LW (RT-830L)
Sansitivitvss
«i» cus
REE e 350 u V /m
750
uV/m
Selectivity
i.
4
c
eR
ns 35 dB
35 dB
Signal-to-Noise Ratio........ 60 dB
60 dB
Image Response Ratio ....... 40 dB
40 dB
IF Response Ratio
......... 40 dB
40dB
Afitenna
ca
Ca aX
epi
Ras Eug Loop antenna
MISCELLANEOUS
Power Requirement......... 120V/60 Hz, 220V/50 Hz, 240V/50 Hz
or 120, 220, 240V/50-60 Hz
(depending on destinations)
Power Consumption
........- 10 watts
Dimensions (overall) ........ 430 (W) x 66 (H) x 285 (D) mm
16-15/16" x 2-19/32" x 11-7/32"
Weight (net)...
....
sess 3.1 kg/6.82 Ibs.
e
Specifications and design subject to possible modification withou
notice.
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