• Contenu
• AirOS
  • v5.3.5
  • Comparaison
  • v5.5
  • AirView test
    • First batch testing narrow channels 5240 with 5200-5300 airview:
    • Second batch testing large channels 5300 with 5200-5400 airview:

AirOS¶

http://wireless.kernel.org/en/developers/Regulatory
http://wireless.kernel.org/en/developers/Regulatory/Database

Band [MHz]    Max BW [MHz]    Flags    Max antenna gain [dBi]    Max EIRP [dBm (mW)]
2402.000 - 2482.000    40.000        N/A    20.00 (100.00)
5170.000 - 5250.000    40.000        N/A    20.00 (100.00)
5250.000 - 5330.000    40.000    DFS    N/A    20.00 (100.00)
5490.000 - 5710.000    40.000    DFS    N/A    27.00 (501.19)

http://www.ubnt.com/wiki/RF_Compliance

For example, if you select 5805 MHz (40 MHz channel) and Below, the radio will use (5775 to 5795 MHz) + (5795 to 5815 MHz),
but if you select 5805 MHz (40 MHz channel) and Above, the radio will use (5795 to 5815 MHz) + (5815 to 5835 MHz).

ath9k http://wenku.baidu.com/view/ac0523f57c1cfad6195fa7f4.html

Ubnt founder: http://www.forbes.com/forbes/2012/0116/entrepreneurs-robert-pera-computer-hardware-apple.html

v5.3.5¶

http://wiki.ubnt.com/AirOS_5.3

Channel width 5/10/20/40

TX power min max dBm
Loco 4 23
NS 8 27
NB 4 23
Rocket -4 27

LocoM2 5/10/20/40 dBm 5-23

Comparaison¶

5.3.5 vs 5.5

Linux version 2.6.15-5.2 (buildd@builder) (gcc version 4.1.2) Mon Dec 19 20:46:46 EET 2011 (janvier 2006)
Linux version 2.6.32.54 (buildd@builder) (gcc version 4.1.2) Fri Apr 6 14:56:27 EEST 2012 (decembre 2009)

6842240 May 19 17:07 XM-v5.3.5.build11245.bin
6472831 May 19 17:07 XM-v5.5.build12536.bin

v5.5¶

http://www.ubnt.com/download#doc
http://www.ubnt.com/downloads/guides/airOS/airOS_UG_V55_3-20-12.pdf

Country Compliance Mode Frequency 4920 Mhz a 6100 MHz
Channel width 3/5/8/10/20/25/30/40

TX power min max dBm
Loco 4 23
NS -4 27
NB -8 23
Rocket -4 27

LocoM2 3/5/8/10/20/25/30/40 dBm 5-23 Freq 2312 a 2732 MHz (France 5/8/10/20/30/40 et 2412-2472)

IPv6 supported in command line ping6 fe80::xxx%br0 works

AirView test¶

References:

• http://forum.ubnt.com/showthread.php?t=52560
• ETSI EN 301 893 v1.7.0 (2012-01)
• http://www.etsi.org/deliver/etsi_en/301800_301899/301893/01.07.00_40/en_301893v010700o.pdf
  • See diagram page 17 of the ETSI PDF

Lab on table same room compliance mode 5.5
- one NSM5 AP WDS
- one LocoM5 STA WDS 1 meter from the NSM5
- one NBM5 head (without dish) right in between Loco and NS running AirView

Steps for each graph

1. associate NS and Loco with new frequency and width
2. clear airview
3. launch 300 second iperf client between netbook behind NSM5 to iperf server on locoM5
4. after iperf is done save airview screenshot
5. go back to step 1

First batch testing narrow channels 5240 with 5200-5300 airview:¶

• 3 MHz
  
• 5 MHz
  
• 8 MHz
  
• 10 MHz
  
• 20 MHz
  

Second batch testing large channels 5300 with 5200-5400 airview:¶

• no emission to verify noise
  
• 10 MHz
  
• 20 MHz
  
• 30 MHz
  
• 40 MHz