Realistic STA-115 - Electrical Performance Specifications

ELECTRICAL
PERFORMANCE
SPECIFICATIONS
Whole
Specs
are measured under the following
conditions:
1.
The supply
voltage
is 120volts
(U.S.A.,
Canada),
(240voltsAC,50
Hzfor
Australian models)
from
a regulated
power
supply.
2. All
measurements
shall
be taken under IHF
measurement method
unless otherwise
specified.
3.
The
power
source must
be
insulated
from other equipment, connected
to antenna
or output.
4.
The
room temperature
is
25'C
l77"Fl.
AM Section
Notes: 1.
Output
readings
are taken
across a non-reactive
47 k
ohm load termination.
2. Output is
measured
at TAPE
OUT terminals.
3.
The
generator
output
shall terminate
in an IRE loop
antenna.
4.
Standard
modulation:
4OO H2,30%
modulation.
ITEM
Measured
at
(kHz)
UNIT
NOMINAL LIMIT
Frequency coverage
kHz 510
-
1650
520
-
1620
I
ntermediate
Frequency
kHz
455
20 dB Ouieting
sensitivit.y
600
1000
1400
pV
lm
pV
lm
pY
lm
250
250
250
500
500
500
Sensitivity
at antenna terminal
1 000
pV
20
S/N Ratio
at
5
mV/m input
1 000 dB 43
37
Selectivity at
S/N 20
dB input,
r
10 kHz
1 000 dB
27 22
Band
width at
6
dB
down
1
000
kHz
6
4.5-9
A.G.C.
Figure
of merit
1 000 dB 50
42
I F
rejection
ratio
600
dB 32
27
lmaqe Reiection ratio
1400 dB
45 38
T.H.D.
at
5mV/m
input,30% mod.
1 000
o/
/o
0.8 2.O
Overload
Distortion
at
100mV/m
input
80%
mod.
1 000
o/
/o
3 5
Overload
capacity
at
80%
mod.
at 30% mod.
1 000
1 000
mV/m
mV/m
200
200
100
100
Electrical audio f idelity
Ref
..freq.
=
1 kHz,
-O
dB down,
5mV/m
input
1 000
Hz
50-3k
80
-
2.5k
Whistle modulation
(2nd)
at
SmV/m
at 100mV/m
(3rd)
at
1mV/m
at
5mV/m
at
100mV/m
910
910
o/
/o
o,/
/o
5.0
10.0
10.0
15.0
1
365
1 365
isos
o/
/o
o/
/o
o/
/o
5.0
10.0
10.0
10.0
15.0
Frequency calibration
600
1 000
1400
kHz
kHz
kHz
0
0
x25
x40
r50
-3