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Specifications: Dell TrueMobile WLAN Card User's Guide

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Specifications: Dell™ TrueMobile™ WLAN Card User's Guide


Physical Characteristics
Temperature and Humidity Limitations
Power Characteristics
Networking Characteristics
Dell TrueMobile 1180 WLAN Card Radio Characteristics
Dell TrueMobile 1300 WLAN Card Radio Characteristics
Dell TrueMobile 1400 WLAN Card Radio Characteristics


Physical Characteristics

Characteristic Dell TrueMobile 1180 WLAN Card Dell TrueMobile 1300 WLAN Card Dell TrueMobile 1400 WLAN Card
Form Factor
Mini PCI specification, May 2002. Type IIIA form factor
Dimensions (length, width)
59.6 mm × 50.95 mm


Temperature and Humidity Limitations

Condition Dell TrueMobile 1180 WLAN Card Dell TrueMobile 1300 WLAN Card Dell TrueMobile 1400 WLAN Card
Operating Temperature 0°C to 85°C
0°C to 70°C
Operating Humidity 95% maximum (no condensation allowed)
95% maximum (no condensation allowed)
Storage Temperature –20°C to 85°C
–40°C to 90°C
Storage Humidity 95% maximum (no condensation allowed)
95% maximum (no condensation allowed)


Power Characteristics

Characteristic Dell TrueMobile 1180 WLAN Card
Dell TrueMobile 1300 WLAN Card

Dell TrueMobile 1400 WLAN Card

IEEE Std 802.11b IEEE Draft Std 802.11g IEEE Std 802.11b IEEE Draft Std 802.11g IEEE Std 802.11a
Doze Mode 40 mA 40 mA 40 mA 40 mA 40 mA 40 mA
Receive Mode 220 mA 220 mA 400 mA 220 mA 400 mA 400 mA
Transmit Mode 330 mA 330 mA 600 mA 330 mA 600 mA 550 mA
Power Supply 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V


Networking Characteristics

Characteristic Dell TrueMobile 1180 WLAN Card Dell TrueMobile 1300 WLAN Card Dell TrueMobile 1400 WLAN Card
Compatibility IEEE Std 802.11b standard for wireless LAN (DSSS) IEEE Std 802.11b and IEEE Draft Std 802.11g for wireless LAN (DSSS and OFDM) IEEE Std 802.11b/a and IEEE Draft Std 802.11g for wireless LAN (DSSS and OFDM)
Network Operating System
Microsoft® Windows® Networking
Host Operating System

Microsoft Windows XP, 2000

  • NDIS5 miniport driver

Microsoft Windows XP, Windows 2000

Medium access protocol CSMA/CA (collision avoidance) with acknowledgment (ACK)
CSMA/CA (collision avoidance) with acknowledgment (ACK)
Data Rate (Mbit/s) IEEE Std 802.11b: 1, 2, 5.5, 11
IEEE Std 802.11b: 1, 2, 5.5, 11
IEEE Draft Std 802.11g: 1, 2, 5.5, 6, 11, 12, 18, 24, 36, 48, 54
N/A IEEE Std 802.11a: 6, 9, 12, 18, 24, 36, 48, 54
NOTE—The Dell TrueMobile WLAN Cards use an automatic transmit rate select mechanism.


Dell TrueMobile 1180 WLAN Card Radio Characteristics

RF (Radio Frequency) Band: 2.4 GHz (2400–2500 MHz)

Frequency Band 2.4 GHz (IEEE 802.11b)
Modulation Technique

Direct Sequence Spread Spectrum (DSSS)

  • CCK for high and medium transmit rate
  • DQPSK for standard transmit rate
  • DBPSK for low transmit rate
Spreading 11-chip Barker sequence
Bit Error Rate (BER) Better than 10-5
Nominal Output Power 15 dBm


Dell TrueMobile 1300 WLAN Card Radio Characteristics

RF (Radio Frequency) Band: 2.4 GHz (2400–2500 MHz)

NOTE—See Regulatory Information for country-specific performance characteristics and use restrictions.

Frequency Band 2.4 GHz (IEEE 802.11b, IEEE Draft Std 802.11g)
Modulation Technique

Direct Sequence Spread Spectrum (DSSS)

  • CCK for high and medium transmit rate
  • DQPSK for standard transmit rate
  • DBPSK for low transmit rate

Orthogonal Frequency Division Multiplexing (OFDM)

  • 52 subcarriers with BPSK, QPSK, 16-QAM or 64-QAM
  • Forward error correction convolutional coding rate: 1/2, 2/3, 3/4
Spreading 11-chip Barker sequence
Bit Error Rate (BER) Better than 10-5
Nominal Output Power IEEE Std 802.11b: 14 dBm; IEEE Draft Std 802.11g: 15 dBm


Dell TrueMobile 1400 WLAN Card Radio Characteristics

RF (Radio Frequency) Band: 2.4 GHz (2400–2500 MHz) and 5 GHz (4900–5850 MHz)

NOTE—See Regulatory Information for country-specific performance characteristics and use restrictions.

Frequency Band 2.4 GHz (IEEE Std 802.11b, IEEE Draft Std 802.11g) 5 GHz (IEEE Std 802.11a)
Modulation Technique

Direct Sequence Spread Spectrum (DSSS)

  • CCK for high and medium transmit rate
  • DQPSK for standard transmit rate
  • DBPSK for low transmit rate

Orthogonal Frequency Division Multiplexing (OFDM)

  • 52 subcarriers with BPSK, QPSK, 16-QAM or 64-QAM
  • Forward error correction convolutional coding rate: 1/2, 2/3, 3/4

Orthogonal Frequency Division Multiplexing (OFDM)

  • 52 subcarriers with BPSK, QPSK, 16-QAM or 64-QAM
  • Forward error correction convolutional coding rate: 1/2, 2/3, 3/4
Spreading 11-chip Barker sequence N/A
Bit Error Rate (BER) Better than 10-5 Better than 10-5
Nominal Output Power IEEE Std 802.11b: 14 dBm; IEEE Draft Std 802.11g: 15 dBm 14 dBm


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