Optimized Antenna Chaining for Atheros Chipset Wifi

Optimized Antenna Chaining for Atheros Chipset Wifi

I got 2 Atheros wifi router

- 1 unit WHR-HP-GN

- 1 unit WHR-HP-G300N

1) Buffalo WHR-HP-GN

The router only got 1 external antenna

At advanced wireless setting under TX antenna & RX antenna there is antenna chain option that can be selected

1 : built in antenna

2 : external antenna

3 : nil

So set it to :

TX antenna : 1 + 2

RX antenna : 1 + 2

Tx Power : 25dBm

Country Code : United States

Max Tx Power Output : 23dBm

2) Buffalo WHR-HP-G300N

The router got 2 antenna :

- 1 : built in antenna

- 2 : external antenna

- 3 : external antenna

So set it to :

- TX antenna : 1 + 2 (1 antenna)

- RX antenna : 1 + 3 (1 antenna)

- Tx Power : 28dBm

- Country Code : United States

Max Tx Power Output : Variable output ( The device can detect how many gain of signal we get with external antenna, it will limit the power output)

- No antenna : 28dBm

- Stock antenna : 21dBm

- High Gain antenna (9dBi) : 16dBm

Tomato DualWAN Features

Tomato DualWAN Features

- The true potential of Tomato Firmware is here

- Running on ASUS RT-N16

- Features include :

1) Client Daily Bandwidth Monitoring.

2) Client Real-Time Bandwidth Usage

3) Outbond WAN Allocation

4) Smart QOS Management

5) Bandwith Limiter per IP

6) Application Restriction

7) WAN load balancing Connection Check Up

8) 3G USB Modem WAN Connection. + Inteligent Dual WAN Balancing Distribution

Tomato : How to Set Up WDS

1st Router (Main Router with Internet Access)
- WAN port of this router is connected to the Internet.

WAN
(configure normally)

LAN
IP Address = 192.168.1.1
DHCP Server = enabled

Wireless
Wireless Mode = Access Point + WDS
SSID = samessid
Channel = 6
Security = WPA Personal
Encryption = AES
Shared Key = samesharedkey
WDS = Link With
MAC Address = *wireless* MAC address of the 2nd router)

2nd Router ( The repeater Router, No internet access on the router)
-The WAN port of this router is not used.

WAN
Type = Disabled

LAN
IP Address = 192.168.1.2
Default Gateway = 192.168.1.1 (the 1st router's IP address)
Static DNS = 192.168.1.1 (the 1st router's IP address or any DNS server)
DHCP Server = Disabled (the 1st router handles DHCP)

Wireless
Wireless Mode = Access Point + WDS
SSID = samessid
Channel = 6
Security = WPA Personal
Encryption = AES
Shared Key = samesharedkey
WDS = Link With
MAC Address = (the *wireless* MAC address of the 1st router)

How to install Transmission Optware on USB Harddisk

How to install Transmission Optware on USB Harddisk

Equipment:
- Asus RT-N16 router
- 40GB usb flash disk.

1. Telnet to the router, enter login name as root and your password

2. Type mount
- it will show where is your hardisk mounted.

3. Un-mount it with umount /tmp/mnt/op

4. Type this to prepare the hardisk with folder and mounted it as /opt
mount /dev/sda1 /mnt
cd /mnt
mkdir /mnt/opt
mkdir -p /mnt/data/torrents
mount /mnt/opt /opt

5. Install transmission with this code, open port for transmission is set at 25000. your ip address:9091 to view transmission GUI.
wget http://www.3iii.dk/linux/optware/optware-install-ddwrt.sh -O /tmp/optware-install.sh
sh /tmp/optware-install.sh
/opt/bin/ipkg-opt -verbose_wget install transmission
/opt/bin/transmission-daemon -g /mnt/data/torrents/.config/transmission-daemon
killall transmission-daemon
wget http://www.3iii.dk/linux/optware/settings.json -O /mnt/data/torrents/.config/transmission-daemon/settings.json
iptables -I INPUT 1 -p tcp --dport 25000 -j ACCEPT
/opt/bin/transmission-daemon -g /mnt/data/torrents/.config/transmission-daemon
http://192.168.1.1:9091/

6. Open your TomatoUSB router, view USB Support page. Add this code for run after mounting
umount /tmp/mnt/op
mount /dev/sda1 /mnt
mount /mnt/opt /opt
/opt/bin/transmission-daemon -g /mnt/data/torrents/.config/transmission-daemon
iptables -I INPUT 1 -p tcp --dport 25000 -j ACCEPT

Add this code for run before unmounting
killall transmission-daemon
umount /opt

Now transmission is installed properly on the USB hardisk.

Good Luck,
tictac

RTL8187 issue with uBuntu Lucid

RTL8187 issue with uBuntu Lucid

If you have wifi adapter with Realtek 8187 chipset and using linux ubuntu likely you will face unstable wifi connection with default driver.

There are couple of ways to overcome this is..

1. Open Terminal window
2. Type iwconfig
- it will show your wifi adapter setting and maximum allowed transmit power.
3. Type sudo iw reg set BO
- this will change the country code. With this code it will allowed maximum transmit power up to 30dBm
4. Type sudo iwconfig wlan1 rate 11M auto
- this will limit maximum rate up to 11mbps to ensure stable long range wifi connection.

Thank you,
tictac