CDPD system characteristics
Frequency bands:
- base to mobile: 869 - 894 MHz
- mobile to base: 824 - 849 MHz
Channel access: FDMA/DSMA
Frequency Division Multiple Access/Digital Sense Multiple Access
Channel bit rate: 19.2 Kb/s
Packet length: 24 - 928 bytes
Service coverage: AMPS areas (since 1992)
Structure/carrier: open/public