– 4–1 –
4. TECHNICAL SPECIFICATIONS
4.1. Tx Characteristics
All data is applicable to E-GSM 900 and GSM 1800 except where stated.
4.1.1. Frequency Error
±
0.1 ppm max., relative to base station frequency.
4.1.2 Modulation Phase Error
RMS: Equal to or less than 5
°
Peak: Equal to or less than 20
°
4.1.3. Output RF Spectrum due to Modulation
Offset from Centre Frequency (kHz)
Offset from Centre Frequency (kHz)
Maximum Level Relative to Carrier (dB)
Maximum Level (dBm)
±
100
±
200
±
250
±
400
±
600 to 1800
+0.5
–30
–33
–60
–60
4.1.4. Output RF Spectrum due to Switching Transients
E-GSM 900
GSM 1800
±
400
±
600
±
1200
±
1800
–19
–21
–21
–24
–22
–24
–24
–27
Measurement conditions for output RF spectrum measurements:
Frequency Span
0 Hz
Measurement Bandwidth:
30 kHz
Video Bandwidth:
30 kHz (modulation)
100 kHz (switching)
Average (Modulation)
over 200 burst
Peak Hold (Switching)
over 10 burst