Sangean WR-2, Service Manual

Page: 8 / 44

SPECIFICATION
LW ELECTRICAL PERFORMANCE
Model: WR-2(UK)
Brand: ROBERTS
Temp: 25
℃
R. H. : 75 % Date:2005/3/14
Condition Value Test No.
Test Item
Input Output Freq. Nom. Lim. 1. 2.
Unit
S/N=6dB
Min. 153
±
3
Tuning Range
S/N=6dB
Max. 279
±
3
KHz
Intermediate freq.
S/N=6dB
Min 450
±
3
KHz
162KHz 68
225KHz 66 Max. Sensitivity
S/N=6dB
270KHz 64
dB
μ
/m
162KHz 62 68
225KHz 60 66 Usable Sensitivity
S/N=20dB
270KHz 60 66
dB
μ
/m
Image Rejection
S/N=6dB
270KHz 30 24
dB
I. F. Rejection
S/N=6dB
162KHz 60 50
dB
Selectivity(
±
10KHz)
S/N=6dB
270KHz 26 20
dB
Bandwidth (-6dB)
S/N=6dB
6 4-9
KHz
T. H. D. 100dB 30 % 3 5
%
S/N Ratio (5mV) 74dBu/m 32 26
dB
**Output power Mod 80% 94dBu/m
10%T.H.D
225KHz
5
W
Supply Voltage: AC 230 V
R.O
：
50mW
Load: 8 Ohm
Modulation: Dev.30% @400Hz
Remark:
( )
首件產品
( )
客戶抽測
( )
成品
( )
例行抽測
( )
業務樣品
( )
半成品
( )
新機種
( )
工程變更
Approved by Released/Tested by
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