Sangean DPR-15, Руководство по обслуживанию

Страница: 3 / 23

SPECIFICATION
DAB(BAND
Ⅲ)
ELECTRICAL PERFORMANCE
Model:
RD-15
Brand: Roberts Temp: 25
℃
R.H.:75 % Date: 2004/9/3
Test no.
Test Item Condition CH Limit Typical
1. 2.
Unit
Min 5A CH
RF Freq. Range
Max 13F CH
Adjacent Channel
Selectivity
Fc : -70 dBm (Wanted channel)
Fi :
≧
-38 dBm
(Unwanted channel)
(Measurement to EN50248)
10A 30 33 dB
Far-off Selectivity
Fc : -70 dBm (Wanted channel)
Fi :
≧
-25 dBm
FM 75Khz/dev. Fc
±5MHz
(Unwanted channel)
(Measurement to EN50248)
10A 43 53 dB
5A -92 -94 dBm
10A -93 -95 dBm
12B -93 -95 dBm
Sensitivity
Without pop noise
13F -92 -94 dBm
S/N Ratio Without pop noise 10A 50 56 dB
Max. input Signal : Without pop noise 10A -10 0 dBm
5A -96 -99 dBm
10A -97 -100 dBm
12B -97 -100 dBm
Acquisition
Selectivity
(Measurement to EN50248)
13F -96 -99 dBm
Output Power
1kHz
10%T.H.D. 800 600 mW
T. H. D. 1 3 %
Low battery
Indication on
10A 4.4 4.2 V
125H
Z
+4 +7 dB
FREQ
RESPONSE AT CHANNEL 10A CHANGE
SERVICE AF
8KHZ +4 +7 dB
Supply Voltage
：
DC
：
6V
R.O. : 50mW Load: 4 Ohm Modulation :1kHz
Channel Freq.( MHz) Channel Freq.( MHz) Channel Freq.( MHz)
5A 174.928 10A 209.936 12B 225.648
13F 239.200
( )The head of product
( )Finished Product
( )Semi-finished Product
( )New Model ( )Client Spot Check
( )Routine Spot Check
( )Engineering Modify
( )Business Sample
Approved by Released/Tested by
3