LG MG300d, Service Manual

Page: 15 / 162

2. PERFORMANCE
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NO Item GSM850 DCS1800
Frequency Error Under 3dB below reference sensitivity 3dB below reference sensitivity
Multipath and Interference RA250: ±300Hz RA130: ±400Hz
Condition HT100: ±180Hz HT100: ±350Hz
TU50: ±160Hz TU50: ±260Hz
TU3: ±230Hz TU1.5: ±320Hz
0 ~ 100kHz +0.5dB 0 ~ 100kHz +0.5dB
200kHz -30dB 200kHz -30dB
250kHz -33dB 250kHz -33dB
400kHz -60dB 400kHz -60dB
600 ~ 1800kHz -60dB 600 ~ 1800kHz -60dB
1800 ~ 3000kHz -63dB 1800 ~ 6000kHz -65dB
3000 ~ 6000kHz -65dB ≥ 6000kHz -73dB
≥ 6000kHz -71dB
400kHz -19dB 400kHz -22dB
600kHz -21dB 600kHz -24dB
1200kHz -21dB 1200kHz -24dB
1800kHz -24dB 1800kHz -27dB
Frequency offset 800kHz
Intermodulation product should
be Les s than 55dB below the
level of Wanted signal
Power control Power Tolerance Power control Power Tolerance
Level (dBm) (dB) Level (dBm) (dB)
5 33
+3
0 30
+3
6 31
+3
1 28
+3
7 29
+3
2 26
+3
8 27
+3
3 24
+3
9 25
+3
4 22
+3
10 23
+3
5 20
+3
11 21
+3
6 18
+3
12 19
+3
7 16
+3
13 17
+3
8 14
+3
14 15
+3
9 12
+4
15 13
+3
10 10
+4
16 11
+5
11 8
+4
17 9
+5
12 6
+4
18 7
+5
13 4
+4
19 5
+5
14 2
+5
15 0
+5
Output RF
Spectrum
Due to
modulation
Due to Switching
transient
Intermodulation attenuation
Transmitter Output Power
4
5
6
7
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