airodump, fixed channel -1

方法二
airmon-ng stop wlan0
ifconfig wlan0 down
iwconfig wlan0 mode managed
ifconfig wlan0 up
iwconfig wlan0 channel (这里输入你的channel)
ifconfig wlan0 down
iwconfig wlan0 mode monitor
ifconfig wlan0 up





follow the 18 steps:

https://forums.kali.org/showthread.php?20582-HOW-TO-FIX-Airodump-ng-fixed-channel-1-Kali-kernel-3-12-also-on-rt2870-3070usb

here's how to :
Download backport driver 3.12-1 and extract :
1

Code:

cd /usr/src/

2

Code:

sudo wget https://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.12/backports-3.12-1.tar.bz2

3

Code:

sudo tar xvf backports-3.12-1.tar.bz2

4

Code:

cd backports-3.12-1

5

Code:

sudo apt-get install patch

download and apply patch
6

Code:

sudo wget http://patches.aircrack-ng.org/mac80211.compat08082009.wl_frag+ack_v1.patch

7

Code:

sudo patch -p1 < mac80211.compat08082009.wl_frag+ack_v1.patch

download compatdrivers_chan_qos_frag.patch by Mathy Vanhoef I recommend using this because I have correct offset
8

Code:

sudo wget -Ocompatdrivers_chan_qos_frag.patch http://www.pastie.org/pastes/8846771/download

9

Code:

patch -p1  < compatdrivers_chan_qos_frag.patch

download my patch
10

Code:

sudo wget -Ofix-channel-negative-1-on-new-backport-by-Devil_D.patch http://pastebin.com/wPwAJaQC

11

Code:

patch -p1  < fix-channel-negative-1-on-new-backport-by-Devil_D.patch

if you do not know what is the proper wireless drivers type and go on step 14 
12

Code:

make old config

13
if you know your driver type for example i have rt2870/3070 i type
make deconfig-wifi To know which driver you just run in terminal airmon-ng 

Code:

make defconfig-alx
make defconfig-ar5523
make defconfig-ath10k
make defconfig-ath5k
make defconfig-ath6kl
make defconfig-ath9k
make defconfig-b43
make defconfig-b43legacy
make defconfig-brcmfmac
make defconfig-brcmsmac
make defconfig-carl9170
make defconfig-drm
make defconfig-ieee802154
make defconfig-iwlwifi
make defconfig-media
make defconfig-nfc
make defconfig-regulator
make defconfig-rtlwifi
make defconfig-wifi
make defconfig-wil6210

14

Code:

make

15

Code:

make install

16

Code:

update-initramfs -u

17

Code:

reboot

I hope it help  Happy Hacking
as always  I apologize for the English mistakes are the fault of google translate 
and I thank the sources
Mathy Vanhoef http://www.mathyvanhoef.com/2012/09/...patch-for.html
Devil_D 
J0K3R-BHS