Sangean ATS-909X - WORLD BAND RADIOS, Руководство по обслуживанию

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Specification
MW ELECTRICAL PERFORMANCE
Model ;ATS-909X(CE
)
B
rand
：
SANGEAN
Temp
：
25
∘
C
R.H.
：
75
%
Date
：
2010/12/21
Ver. ：
A
Page
：
2/5
Condition Value Test No.
Test Item
Input Output Freq. Nom. Lim. 1. 2. 3.
Unit
Min. 520
±
1
Tuning Range
Max. 1710
±
1
KHz
Intermediate freq. S/N=6 dB
1st IF
2nd IF
55845
450
±
1
KHz
603KHz 58
999KHz
56 Max. Sensitivity
S/N=6 dB
1404KHz 56
dB
μ
/m
603KHz 58 64
999KHz
56 62 Usable Sensitivity
S/N=20d
B
1404KHz 56 62
dB
μ
/m
Image Rejection
S/N=6 dB 1404KHz
36 30
dB
I. F. Rejection(450KHz)
S/N=6 dB
50
dB
Selectivity(
±
10KHz)
S/N=6 dB 40 dB
Bandwidth (WIDE)6 dB
S/N=6 dB
7 4-8
KHz
Bandwidth
(NARROW)6 dB
S/N=6 dB
4.5 2.5-6
KHz
T. H. D.(5mV)
74
dB
μ
/m
2 4
%
Lowest Batt. Volt
.
74
dB
μ
/m
3.9 4.2
V
Hum Modulation.
100 dB
μ
/m
dB
Tuning Ind. Sens.(4nd.dot) 48 54 dB
μ
/m
Auto. Scan. Stop. Sens. 56 62 dB
μ
/m
S/N Ratio 74
dB
μ
/m
32
dB
Current Consumption
74
dB
μ
/m mA
TONE ACTION(3KHz)
74
dB
μ
/m
NORMAL
/NEWS
10 6 dB
150
Audio fidelity(-6dB)
WIDE
74
dB
μ
/m
2100
Hz
Output power
74
dB
μ
/m
400Hz
MAX
10%T.H.D
1 0.8 W
Over Load Capacity 30%Mod
10%T.H.D
100 dB
μ
/m
A. G. C. F. O. M.
100
dB
μ
/m
50
dB
A. C.A.(.
±
10KHz)
999KHz
28
dB
Whistle Modulation(5mV/M)
74
dB
μ
/m
2IF/3IF 15 %
Supply Voltage: AC9 V
R. O. : 50
mW
Load: 8 Ohm
Modulation:400Hz/30%
Remark
：
Approved by
蔡宇曙
2010/12/21
Released/Tested by
黃澍寰
2010/12/21
3