HP 8540W manual Vista and XP, Fast, Transmit 2.3 Watts max, with two spatial streams

QuickSpecs

HP EliteBook 8540w Mobile Workstation

Technical Specifications

Interoperability	Wi-Fi certified
	Cisco Compatible Extensions Program compliant with Microsoft Windows
	Vista and XP
Frequency Band	2.4 GHz and 5GHz
Antenna Structure	2 transmit; 2 receive (2x2)
Data Rates	802.11a: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
	802.11b: 1, 2, 5.5, 11 Mbps
	802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
	802.11n: 66 possible data rates, ranging from 6 Mbps to 300 Mbps,
	depending on the combination of Bandwidth, Modulation Coding Scheme,
	and Guard Interval used, as defined in IEEE 802.11n specification
Modulation	Direct Sequence Spread Spectrum
	DBPSK, DQPSK, CCK, OFDM, BPSK, QPSK, 16-QAM, 64-QAM
Security1	Authentication: WPA and WPA2, 802.1x (EAP_TLS, TTLS, PEAP, LEAP, EAP-
	FAST)
	Authentication Protocols: PAP, CHAP, TLS, GTC, MS-CHAP, MS-CHAPv2
	Encryption: 64 and 128-bit WEP, AES-CCMP, CKIP, TKIP
	Support for Cisco Security Features (proven compatibility with Cisco Aironet
	infrastructure products through the Cisco Compatible Extensions Program
	Version 4) with Microsoft Windows Vista and XP only.
Sub-channels	Multinational support with frequency bands and channels compliant to local
	regulations.
Media Access Protocol	CSMA/CA (Collision Avoidance) with ACK
Network Architecture	Ad-hoc (Peer to Peer)
Models	Infrastructure (Access Point Required)
Roaming	IEEE 802.11 compliant roaming between 2.4GHz band Access Points
Output Power (for CCK	17 dBm max
and OFDM)2
Power Consumption	Transmit: 2.3 Watts (max, with two spatial streams)
	Receive: 1 Watt (max with two spatial streams)
	Idle mode3: 35 mW (average)
	Radio off: 20 mW (max)
Power Management	ACPI compliant power management
	802.11 compliant power saving mode
Receiver Sensitivity4	54 Mbps: -76 dBm, 6 Mbps: -92 dBm
Antenna Connections	2 U.FL type connectors, 50 ohm nominal impedance
Form Factor	PCI-Express Half-MiniCard
Weight	0.0075 lb (3.4 g)
Dimensions	0.12 x 1.06 x 1.18 in (3.1 x 26.8 x 30.0 mm)
Operating Voltage	3.3V +/- 9%
Temperature	Operating	32° to 176° F (0° to 80° C)
	Non-operating	-40° to 176° F (-40° to 80° C)

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