ZyXEL NWA1121-NI User Manual

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Although 11n is the mainstay wireless standard today, it still has a few unsolved problems such as dead spots and inefficient coverage due to the output 

power limited by regulations. The ZyXEL NWA1121-NI features coverage-enhancing 11n technologies such as TX Beamforming, LDPC and MLD to solve these 

issues. With MLD, the NWA1121-NI improves Signal-to-Noise Ratio (SNR) for about 3 dB that make wireless services even more stable and better to satisfy more 

mobile users.

Meanwhile, TX Beamforming also eliminates dead spots by expanding the coverage with continuous, dynamic change of signal phases. Better and larger 

coverage reception will benefit low-power devices such as smartphones or tablets. With this enhancement, users can experience the best mobile wireless 

service anytime, anywhere with the ZyXEL NWA1121-NI.

802.11 b/g/n PoE Access Point

2.4 GHz

Radio 

1

  

802.11n  

24 dBm 

24 dBm

17 dBm

17 dBm

2T2R MIMO 

3 dBi

• 802.11 b/g:

 

■

 1 Mbps: -91 dBm

 

■

 11 Mbps: -85 dBm

 

■

 6 Mbps: -86 dBm

 

■

 54 Mbps: -69 dBm

• 802.11n/20 MHz

 

■

 MCS0: -86 dBm

 

■

 MCS7: -70 dBm

 

■

 MCS8: -85 dBm

 

■

 MCS15: -68 dBm

• 802.11n/40 MHz

 

■

 MCS0: -84 dBm

 

■

 MCS7: -66 dBm

 

■

 MCS8: -83 dBm

 

■

 MCS15: -65 dBm

• 802.11g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mbps

• 802.11n: up to 300 Mbps in MCS15 (40 MHz; GI=400 ns)

• 2x2 multiple-input multiple-output (MIMO) with two spatial streams 

• Maximal ratio combining (MRC) 

• 20- and 40-MHz channels 

• PHY data rates up to 300 Mbps 

• Packet aggregation: A-MPDU (Tx/Rx), A-MSDU (Tx/Rx) 

• Cyclic Delay diversity (CSD) support

• Transmit Beamforming (TxBF) support

• Maximum Likehood Demodulation (MLD) support

• Low Density Parity Check (LDPC) support

• 2.4 GHz (IEEE 802.11 b/g/n)

• USA (FCC): 2.412 to 2.462 GHz

• Europe (ETSI): 2.412 to 2.472 GHz 

• Taiwan (TW): 2.412 to 2.462 GHz