Hi, usually we using this scan list...

/interface wireless set wlan1 scan-list=5150,5160,5170,5180,5190,5200,5210,5220,5230,5240,5250,5260,5270,5280,5290,5300,5310,5320,5330,5340,5350,5360,5370,5380,5390,5400,5410,5420,5430,5440,5450,5460,5470,5480,5490,5500,5510,5520,5530,5540,5550,5560,5570,5580,5590,5600,5610,5620,5630,5640,5650,5660,5670,5680,5690,5700,5710,5720,5730,5740,5750,5760,5770,5780,5790,5800,5810,5820,5830,5840,5850

but we notice V6 this is not working and it will scan full range with 5Mhz channel spacing which take longer time.

we more preffered on the 10Mhz channel spacing for the scanning, anyone have the solution for this?

scan list must contain the NAME of the scan list, not the actual frequencies. frequencies are defined in a separate menu

create list here:
http://wiki.mikrotik.com/wiki/Manual:Wi ... d_Channels

use list in scan-list.