Sangean DPR-25+, Service Manual

Page: 3 / 46

SPECIFICATION.
MW. ELECTRICAL PERFORMANCE
Model: DPR-25
Brand: SANGEAN
Temp:
°C
R.H.: % Date: 2005/9/2
Condition Value Test no.
Test Item
Input Output freq Nom. Lim 1. 2.
Unit
Min 522
Tuning Range
Max 1710
KHz
Intermediate freq. S/N=6dB Min 450
±
2
KHz
Max. Sensitivity S/N=6dB
603KHz
999KHz
1404KHz
46
42
42 56
54
54
dBu/m
Usable Sensitivity S/N=20dB
603KHz
999KHz
1404KHz
56
54
54 62
60
60
dBu/m
Image Rejection S/N=6dB 1404KHz 36 30 dB
I.F. Rejection S/N=6dB 603KHz 50 40 dB
Selectivity(
±
10KHz)
S/N=6dB 32 26 dB
Bandwidth(-6dB) S/N=6dB 6-11 KHz
T. H. D. 74dBu/m 2 4 %
Lowest Batt. Volt. 74dBu/m 6.3 6.7 V
Hum Modulation
100dBu/m
dB
Auto. Scan. Stop. Sens. 56 62
dBu/m
Current Consumption 74dBu/m 160 180 mA
Tone Action (3KHz) 74dBu/m dB
100 200 Hz
Freq. Response
(-6dB)
74dBu/m
2500 1800 Hz
Output Power
80%
Mod. 10%T.H.D. 1000 700 mW
Over load capacity 80%mod. 10%T. H.D. 100 90
dBu/m
A. G. C. F. O. M.
100dBu/m
999KHz
46 40 dB
S/N Ration 74dBu/m 40 34 dB
Whistle Modulation 74dBu/m 2IF/3IF 15 %
Supply Voltage: DC 9 V R.O.: 50mW Load: 8 Ohm
Modulation: 1KHz/30% Mod
Remark:
( )
首件產品
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客戶抽測
:
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成品
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例行抽測
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業務樣品
:
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半成品
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新機種
( )
工程變更
:
Approved by Released/Tested by
3