Frequency Band
Frequency BandFrequency Band
Frequency Band
2.4 GHz and 5 GHz
Antenna Structure
Antenna StructureAntenna Structure
Antenna Structure
1 transmit; 2 receive (1x2)
Data Rates
Data RatesData Rates
Data Rates
802.11b: 1, 2, 5.5, 11 Mbps
802.11a/g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11n (draft): 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 (draft) specification
Modulation
ModulationModulation
Modulation
Direct Sequence Spread Spectrum
DBPSK, DQPSK, CCK, OFDM, BPSK, QPSK, 16-QAM, 64-QAM
Security
SecuritySecurity
Security
1
Supports 64- and 128-bit WEP, WPA, WPA2, hardware-accelerated AES
(support for key sizes of 128, 192, and 256 bits), 802.1x authentication
types EAP-TLS, EAP-TTLS, PEAP-GTC, PEAP-MSCHAPv2, LEAP, EAP-FAST.
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
Sub-channelsSub-channels
Sub-channels
Multinational support with frequency bands and channels compliant to local
regulations.
Media Access Protocol
Media Access ProtocolMedia Access Protocol
Media Access Protocol
CSMA/CA (Collision Avoidance) with ACK
Network Architecture
Network ArchitectureNetwork Architecture
Network Architecture
Models
ModelsModels
Models
Ad-hoc (Peer to Peer)
Infrastructure (Access Point Required)
Roaming
RoamingRoaming
Roaming
IEEE 802.11 compliant roaming between access points
Output Power
Output PowerOutput Power
Output Power
(for CCK)
2
15 dBm
Output Power
Output PowerOutput Power
Output Power
(for OFDM;
power varies by data
rate)
2
15 dBm
Power Consumption
Power ConsumptionPower Consumption
Power Consumption
Transmit: 2.3 Watts (average, with one spatial streams)
Receive: 1.9 Watts (average with two receive chains)
Idle mode
3
: 30 mW (average)
Radio off: 20 mW (max)
Power Management
Power ManagementPower Management
Power Management
ACPI compliant power management
802.11 compliant power saving mode
Receiver Sensitivity
Receiver SensitivityReceiver Sensitivity
Receiver Sensitivity
4
300 Mbps: -68 dBm, 54 Mbps: -74 dBm, 6 Mbps: -90 dBm
Antenna Connections
Antenna ConnectionsAntenna Connections
Antenna Connections
3 U.FL type connectors, 50 ohm nominal impedance
Range
RangeRange
Range
802.11 a – Typical
(@6 Mbps)
600 feet – Outdoor Open Area
150 feet – Indoor, Office environment
802.11 b – Typical
(@1 Mbps)
1200 feet – Outdoor Open Area
300 feet – Indoor, Office environment
802.11 g – Typical
(@1 Mbps)
1200 feet – Outdoor Open Area
300 feet – Indoor, Office environment
Form Factor
Form FactorForm Factor
Form Factor
PCI-Express MiniCard
Weight
WeightWeight
Weight
0.013 lb (6 g)
Dimensions
DimensionsDimensions
Dimensions
0.19 x 1.2 x 2.0 in (4.75 x 29.85 x 50.8 mm)
Operating Voltage
Operating VoltageOperating Voltage
Operating Voltage
3.3V +/- 9%, 1.5V +/- 5%
Temperature
TemperatureTemperature
Temperature
Operating
Non-operating
32° to 176° F (0° to 80° C)
–40° to 176° F (–40° to 80° C)
QuickSpecs
HP Compaq dc7900 Business PC
HP Compaq dc7900 Business PCHP Compaq dc7900 Business PC
HP Compaq dc7900 Business PC
Technical Specifications - Communications
DA - 13029 North America — Version 15 — March 30, 2009
Page 34
