LG C2500 Service Manual - Page 31
TX Characteristics
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5. TECHNICAL SPECIFICATION 5. TECHNICAL SPECIFICATION 5.1. TX Characteristics All data is applicable to E-GSM900 and DCS1800 / PCS1900 except where stated. 5.1.1. Frequency Error ± 0.1 ppm max. relative to base station frequency. 5.1.2. Modulation Phase Error RMS: Equal to or less than 5° Peak: Equal to or less than 20° 5.1.3. Output RF Spectrum due to Modulation Offset from Centre Frequency (kHz) Maximum Level Relative to Carrier (9dB) ±100 ±200 ±250 ±400 ±600 to 1800 + 0.5 - 30 - 33 - 60 - 60 5.1.4. Output RF Spectrum due to Switching Transients Offset from Centre Frequency (kHz) ±100 ±600 ±1200 ±1800 E-GSM 900 - 19 - 21 - 21 - 24 Maximum Level (dBm) DCS 1800 PCS 1900 - 22 - 22 - 24 - 24 - 24 - 24 - 27 - 27 - 30 -
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5.1. TX Characteristics
All data is applicable to E-GSM900 and DCS1800 / PCS1900 except where stated.
5.1.1. Frequency Error
±
0.1 ppm max. relative to base station frequency.
5.1.2. Modulation Phase Error
RMS: Equal to or less than 5
°
Peak: Equal to or less than 20
°
5.1.3. Output RF Spectrum due to Modulation
±
100
+
0.5
±
200
- 30
±
250
- 33
±
400
- 60
±
600 to 1800
- 60
5.1.4. Output RF Spectrum due to Switching Transients
±
100
- 19
- 22
- 22
±
600
- 21
- 24
- 24
±
1200
- 21
- 24
- 24
±
1800
- 24
- 27
- 27
5. TECHNICAL SPECIFICATION
5. TECHNICAL SPECIFICATION
- 30 -
Offset from Centre Frequency (kHz)
Maximum Level Relative to Carrier (9dB)
Offset from Centre
Maximum Level (dBm)
Frequency (kHz)
E-GSM 900
DCS 1800
PCS 1900