| CDPD Specifications
Operating frequency range:
base to mobile: 824-849 MHz
mobile to base: 869-894 MHz
RF channel spacing: 30 kHz
channel access: FDMA
Multi-user access: Data-Sense Multiple Access (DSMA)
modulation method: GMSK
channel bit rate: 19,200 bps
packet length: 24 - 928 bits
open architecture
public carrier
mobile coverage
output power levels of 0.6, 1.6 and 3 W
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