Articles: Networking
 

Bookmark and Share

(0) 

Table of Contents

Pages: [ 1 | 2 | 3 | 4 | 5 ]

We’ve recently started a series of tests of Draft N wireless adapters, beginning it with a review of the Trendnet TEW-624UB. The device we are going to discuss today is another Wi-Fi adapter with a USB interface. It is manufactured by D-Link and called DWA-142.

D-Link’s Draft N products fall into three categories (in the order of lowering performance): Xtreme N, RangeBooster N, and Wireless N. The DWA-142 is a medium-performance product, belonging to the RangeBooster N category. You’ll see shortly how it differs from Xtreme N, for example.

So, let's get started and meet our today's hero.

 

Specifications

First let's take a look at the official specifications of the D-Link adapter:

Parameter

Characteristics

Wireless standard

- IEEE 802.11n (draft)
- IEEE 802.11g
- IEEE 802.11b

Encoding standard

- WEP (64/128bit)
- WPA
- WPA2

Antenna

2 integrated PIFA antennas (2dBi)

Signal modulation

- OFDM (BPSK/QPSK/16 QAM/64-QAM)
- CCK
- DQPSK
- DBPSK

Operating frequency

2400 – 2483.5 MHz

Nominal data transfer rate

- 802.11g: 6/9/12/18/24/36/48/54 Mb/s
- 802.11b: 1/2/5.5/11 Mb/s
- 802.11n (draft): 30/60/90/120/180/240/270/300 Mb/s

Transmit power

- 802.11b: 16dbm
- 802.11g/802.11n (draft): 14dbm

Transmit sensitivity

- 802.11b:
(typical PER < 8% for 1024 Byte packet and 25ºC + 5ºC temperature)
11 Mbps (CCK): -87dBm
5.5 Mbps (CCK): -88dBm
2 Mbps (DQPSK): -89dBm
1 Mbps (DBPSK): -91dBm

- 802.11g:
(typical PER <10% for 1024 Byte packet and 25ºC + 5ºC temperature)
54 Mbps (OFDM): -72dbm
48 Mbps (OFDM): - 75dbm
36 Mbps (OFDM): -77dbm
24 Mbps (OFDM): -80dbm
12 Mbps (OFDM): -85dbm
6 Mbps (OFDM): -88dbm 

- 802.11n (draft):
(typical PER <10% for 1024 Byte packet and 25ºC + 5ºC temperature)
300 Mbps (OFDM): -63dbm

Operating channels

11 for North America, 14 Japan,
13 Europe (ETSI), 3 (non-overlapping)

Interface

USB 2.0, 1.1 Standard

Other interfaces

None

Power

From the USB port

Current

- Transmitting: 270mA
- Receiving: 460mA

Dimensions

97.33mm (diameter)  x 19.3mm

Additional features

None

Package and Accessories

The box contains standard accessories:

  • Wi-Fi adapter
  • CD with drivers and user manual
  • Brief user manual
  • Safety instructions
 
Pages: [ 1 | 2 | 3 | 4 | 5 ]

Discussion

Comments currently: 0

Add your Comment