Dell Axim X51 Owner's Manual page 128

Wireless Connectivity
Network architecture
Operating frequencies
Operating channels
RF output power
Range
Client utility
Software support
Lights
Switch
Bluetooth wireless
technology
128
Appendix
ad-hoc and infrastructure
2.4–2.497 GHz
1–11 (North America);
1–13 (Europe and Japan)
13.0 dBm maximum
indoor — up to 10 m (120 ft) at 5 Mbps
and 75 m at 0.5 Mbps
automatic location profile, site survey,
diagnostics, current link status, ping
Wi-Fi certified
green (WLAN status)
blue (Bluetooth wireless technology status)
manual radio on/off (hardware button
and software switch) to comply with
aviation restrictions
2.4-GHz ISM band operation;
compatible Bluetooth 1.2 wireless
technology; includes manager for
Bluetooth with wireless technology;
Class II device; Max 4 dBm o/p power;
3.3V operation; UART interface