Preceiver; Revox B286; Fm Tuner Section; Am Tuner Section - Revox B 285 Serviceanleitung
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STUDER REVOX
B286
7/5
7.2
PRECEIVER
REVOX
B286
7.2.1
FM Tuner
Section
Tuning range:
87.5...108
MHz
tuning
by means
of a quartz
referenced
frequency
synthesizer
by FREQUENCY
STEP
mode
in 25kHz
steps
by AUTOTUNING
mode
in 50kHz
steps
Tuning
accuracy:
+0.002%
Monophonic
usable
sensitivity:
1.2uVv
12.8dBf
Quieting
sensitivity
MONO:
1.6uV
15.20Bf
STEREO:
19nV
36.8dBf
Signal
to noise
ratio
MONO:
8408
STEREO:
80d8
Total
harmonic
distortion
(1kHz)
MONO:
0.15%
STEREO:
0.3%
Capture
ratio:
20B
Selectivity
adjacent
channel
(average):
16048
Selectivity
alterate
channel
(average):
96dB
Spurious
response
ratio
Af = 5.35
MHz:
1104dB
Image
rejection
Af = 21.4
MHz:-
110dB
IF rejection
(10.7
MHz):
110d8
Subcarrier
product
rejection:
78dB
Frequency
response
20HZ...15kHz:
+0.3/-0.8dB
Stereo
separation
at 1kHz:
43¢0B
Muting
threshold:
2.2uv
/ 18qBf
Stereo
threshold:
5.5uv
/ 26dBf
Output
level
at output
TAPE:
1.8V
Antenna
impedance:
75Q
7.2.2
AM Tuner
Section
Tuning
range:
535...1605kHz
Station
tuning
by means
of
a quartz
referenced
frequency
synthesizer
by
FREQUENCY
STEP
mode
in 1kHz
steps
by
AUTOTUNING
mode
in 10kHz
(3-4-3kHz)
steps
Usable
sensitivity:
36pV
Frequency
response:
120Hz...3kHz
-6dB
Distortion:
1kHz
with
80% AM
1.5%
Signal
to noise
ratio:
at 80% AM
60dB
Muting
threshold:
MUTING
AM
50pV
Output
level
at output
TAPE:
at 80%
AM
4.5V
Antenna
inputs:
Three
wire
clamps
with
change
over
switch
a)
to utilize
the
coaxial
input
via
internal
frequency
deviding
network
FM/AM
b)
to connect
conventional
aerial
antenna
of any Length
plus
ground
c)
to connect
the REVOX
Loop antenna
7.2.3
Amplifier
Section
Inputs
sensitivity
/ impedance
(for
6V OUTPUT
A)
DISC:
250mv...5V
/47ka,
nominally
5O00mv
TAPE1/TAPE2:
250mV...5V¥
/47kQ,
nominally
SOOmv
PHONO
MM:
2.7mV...50mVv/47k2,
50,150,450pF,
nominally
Smv
Option:
PHONO
MC:
100nV...2mv
/1002
nominally
SO0OyuVv
Max.
input
voltage:
High
level
inputs:
8Vv
PHONO
MM:
ikHz,
150mv
PHONO
MC
(Option):
kHz,
6mv
Outputs
Level
/ impedance
Cat
nominal
input
voltage)
TAPE1/TAPE2:
500mvV/680Q
from
input
PHONO
MM:
250mv
PHONES:
6V/2200
OUTPUT
A (High):
6V/220Q
OUTPUT
B (Low):
2v/220Q
Tone
controls,
parametrically
Range
+4 steps
BASS:
at 40 Hz
+120B...-12dB
TREBLE:
at
15kHz
+100B.. .-10dB
SUBSONIC
filter
Cassignable
to PHONO):
V2dB/octave,
15Hz
-3dB
Total
harmonic
distortion:
OUTPUT
A 6V,
OUTPUT
8 2V,
at
1kHz
0.005%
Signal-to-noise
ratio:
High
Level
inputs:
IHF-A
weighted
refered
to 500mV
input,
1kQ
ter-
mination,
6V at OUTPUT
A,
9608
PHONO
MM:
refered
to 5mV
input,
1kQ
ter-
mination,
6V at OUTPUT
A,
800B
PHONO
MC
(Option):
refered
to SOOuV
input,
10 ter-
mination,
6V at OUTPUT
A,
76aB
Crosstalk
between
inputs:
at 1kHz
90408
Channel
separation
High
level
inputs:
at 1kHz
754B
PHONO:
at 1kHz
60dB
Frequency
response:
20Hz.. .20kHz
+0dB/-0.3d8
PHONO
RIAA
equalization:
(4-time
constants)
+0.3cB
7.2.4
General
Multifunctional
LC Display
Station
memory:
programmable
with
24
functions
29 memory
Locations
-
frequency
-
station
abbreviation
-
reception
modes
SERIAL
LINK:
Terminal
for
REVOX
remote
control
system
Dimensions:
WxHxD
18x6x13inches
Weight:
approx.
20lbs.
Power
supply:
115V
AC
/ 60Hz
Power
consumption:
max.
50 W
Environmental
operating
humidity:
classe
F (DIN)
temperature:
40...104 °F
rr
i
nS
We reserve
the
right
to make
alterations
as
technical
progress
may warrant
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