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5.1 Wireless System Outline
DECT Installation
149
5.1.2 RF Specifications
Item Description
Radio Access Method Multi Carrier TDMA-TDD
Multiplex 12
Carrier Frequency Interval 1728 kHz
Transmission Speed 1152 kbps
Frame Structure
10 ms / frame (T 12 slots + R 12 slots)
Modulation Scheme GFSK
Roll-off factor = 0.5 50% roll-off in the transmitter
Data Coding for Modulator Differential Coding
Voice CODEC 32 kbps ADPCM (CCITT G.721)
Transmission Output Max. 250 mW