Sony Ericsson T300 Instant messaging/ Chat, Performance and technical characteristics, Dimension

T300/T302

White Paper, August 2002

Feature Support in the T300/T302

MMS User Agent will report problems to user in case of:

•message not sent causes no user subscription to service, if included in ResponseText (please see WAP209)

•message not sent causes required functionality not supported by MMS Relay/Server, if included in ResponeText (please see WAP209)

•message not sent causes insufficient credit (in case of prepaid charging), if included in Respone- Text (please see WAP209)

Instant messaging/ Chat

Feature	Support in the T300/T302
Support of instant messaging	No
Chat application	Yes, SMS as the radio bearer.

Performance and technical characteristics

Dimension	GSM 900/E-GSM	GSM 1800	GSM 1900
	900
Frequency range	TX: 880 — 914 MHz	TX: 1710 — 1785	TX: 1850 — 1910
	RX: 925 — 959 MHz	RX: 1805 — 1880	RX: 1930 — 1990
Channel spacing	200 kHz	200 kHz	200 kHz
Number of channels	174 Carriers *8	374 Carriers *8	299 Carriers *8
	(TDMA)	(TDMA)	(TDMA)
Modulation	GMSK	GMSK	GMSK
TX Phase Accuracy	< 5º RMS Phase	< 5º RMS Phase error	< 5º RMS Phase
	error (burst)	(burst)	error (burst)
Duplex spacing	45 MHz	95 MHz	80 MHz
Frequency stability	+/- 0.1	+/- 0.1	+/- 0.1
Voltage operation (nominal)	3.6 Volts	3.6 Volts	3.6 Volts
Transmitter RF power output	33 dBm Class 4 (2W	30 dBm Class 1 (1W	30 dBm Class 1 (1W
	peak)	peak)	peak)
Transmitter Output	50 Ω	50 Ω	50 Ω
impedance

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