Roberts RecordR Service Manual page 3

DAB(BAND Ⅲ) ELECTRICAL PERFORMANCE
Model ：RecordR
Test Item
RF Freq. Range
Adjacent Channel
Selectivity
Far-off Selectivity
Sensitivity
Acquisition Selectivity
Max. input Signal
S/N Ratio
W/ 20KHz LPF
T.H.D.
W/ 20KHz LPF
Channel Balance
Current Consumption
Battery 6V
Supply Voltage:
*Adaptor 100-240V 50Hz 7.5V/0.8A
*Battery 6V
Channel Freq.( MHz)
5A 174.928
13F 239.200
Remark：
Specification
Bran：ROBERTS Temp：25∘C R.H.：75% Date：2011/10/11 Ver：A
Condition
Fc : -70 dBm (Wanted channel)
Fi : ≧ -38 dBm
(Unwanted channel)
(Measurement to EN50248)
Fc : -70 dBm (Wanted channel)
Fi : ≧ -25 dBm
FM 75Khz/dev. Fc±5MHz
(Unwanted channel)
(Measurement to EN50248)
Without pop noise
(Measurement to EN50248)
會自動重新 tunning
以 tune 的到電台信號為準
Without pop noise
DAB S.G. = - 70 dBm
Input : -10dBm
Input : -10dBm
Battery 6V
R.O.
DAB S.G. = - 70 dBm
Channel
10A
5B
CH Nom.
Min 5A
Max 13F
10A
10A 53
5A -91
10A -91
12B -93
13F -93
5A -97
10A -97
12B -98
13F -98
10A 0
10A 60
10A 1
10A 1
12B 170
R.O. : 50mW
Freq.( MHz)
209.936
176.640
Approved by
3
Test no.
Lim
1. 2.
32
45
-88
-88
-90
-90
-94
-94
-95
-95
-10
50
3
±2
210
Load: 8 Ohm Modulation :1KHz
Channel Freq.( MHz)
12B 225.648
13E 237.488
Released/Tested by
陳盧生
Page：2/4
Unit
3.
CH
CH
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dB
%
dB
mA