White paper
C702a Cyber-shot™ and C702c Cyber-shot™
30
October 2008
USSD technical data
Property
GSM 1800
GSM 1900
Frequency range (MHz)
TX: 1710
–
1785
RX: 1805
–
1880
TX:1850
–
1910
RX:1930
–
1990
Channel spacing
200 kHz
200 kHz
Number of channels
374 Carriers *8 (TDMA)
299 Carriers *8 (TDMA)
Modulation
GMSK
GMSK
TX Phase Accuracy
< 5º RMS Phase error
(burst)
< 5º RMS Phase error
(burst)
Duplex spacing
95 MHz
80 MHz
Frequency stability
+/- 0.1ppm
+/- 0.1ppm
Voltage operation (nominal)
3.6 V
3.6 V
Transmitter RF power output
30 dBm Class 1
(1 W peak)
30 dBm Class 1
(1 W peak)
Transmitter Output impedance
50 ohm
50 ohm
Transmitter Spurious emission (according to
specification)
< - 30 dBm
< - 30 dBm
Receiver RF sensitivity
Better than -102 dBm
Better than -102 dBm
Receiver RX Bit error rate
< 2.4%
< 2.4%
Feature
Support
USSD support
GSM Phase 1/2 (Cross-phase compatibility)
Mode support
UI-mode supported
SAT initiated USSD supported
UI-mode details
• Ability to scroll the text up and down in USSD messages
• Ability to highlight embedded numbers and take actions accord-
ingly
