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Thread: How to install RTL8187 driver to Ubuntu 13.04?

  1. #31
    Join Date
    Aug 2013
    Beans
    47

    Re: How to install RTL8187 driver to Ubuntu 13.04?

    Quote Originally Posted by chili555 View Post
    It is actually:
    Code:
    sudo iwconfig wlan1 txpower 25
    Please try again.
    Code:
    tom@tom-HP-Compaq-nc8000-DU449EA-ABD:~$ iwconfig
    wlan0     IEEE 802.11bg  ESSID:off/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:off
              
    irda0     no wireless extensions.
    
    lo        no wireless extensions.
    
    eth0      no wireless extensions.
    
    wlan1     IEEE 802.11bg  ESSID:"ThomsonD5E443"  
              Mode:Managed  Frequency:2.437 GHz  Access Point: 00:24:17:D7:68:A7   
              Bit Rate=54 Mb/s   Tx-Power=20 dBm   
              Retry  long limit:7   RTS thr:off   Fragment thr:off
              Power Management:off
              Link Quality=46/70  Signal level=-64 dBm  
              Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
              Tx excessive retries:0  Invalid misc:25   Missed beacon:0
    
    tom@tom-HP-Compaq-nc8000-DU449EA-ABD:~$
    I did change Tx power to 25 value,but never see any change on the terminal,it's always 20.With this signal level (-64 dBm) I had three lines in my signal bar,but couldn't do anything on internet.I was surprised yesterday,I had only internal adapter working,RTL was unplugged,no lines in the signal bar,and internet was working with the "speed of light",even some streaming music for a while.Is my link quality too low maybe?If I could only increase the transmitting power.Two years ago when I bought RTL adapter,I've noticed that chip was getting pretty hot,so I mounted heat sink on it,and now it's cool all the time,and I won't end up with toasted chip,even with tx power increased

  2. #32
    Join Date
    Aug 2005
    Location
    West of the Animas
    Beans
    20,228
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: How to install RTL8187 driver to Ubuntu 13.04?

    I did change Tx power to 25 value,but never see any change on the terminal,it's always 20.
    Then we assume it's already at the maximum and can't be increased.
    Is my link quality too low maybe?
    Well, yes! Can you please move 175 yards closer to the router?

    I am not sure there is much else we can do. Decide which of the two devices works better and live with it is about all I know to suggest.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

  3. #33
    Join Date
    Aug 2013
    Beans
    47

    Re: [SOLVED] How to install RTL8187 driver to Ubuntu 13.04?

    Quote Originally Posted by chili555 View Post
    Then we assume it's already at the maximum and can't be increased.Well, yes! Can you please move 175 yards closer to the router?

    I am not sure there is much else we can do. Decide which of the two devices works better and live with it is about all I know to suggest.
    Soon I'll make one directional wifi antenna and see whats gonna be.I'll let you know about it if you don't mind?Thanks a lot Chili....

  4. #34
    Join Date
    Aug 2013
    Beans
    47

    Re: How to install RTL8187 driver to Ubuntu 13.04?

    Quote Originally Posted by kurt18947 View Post
    Not being an RF expert, 200 yards seems like quite a way for a nondirectional antenna to work. Particularly if there is other 2.4 ghz. 'noise' around like cordless phones, microwave ovens and the like. Does your adapter have a removeable antenna? If so, I wonder if you'll end up with something like this:

    http://sewelldirect.com/High-Gain-Pa...FZKk4AodLxQAXA

    or if you're a tinkerer, a cantenna.

    http://en.wikipedia.org/wiki/Cantenna
    You are right Kurt,bad link quality was my problem,not signal.One of these days I'll make wifi directional antenna,or buy one over e-bay.Thank you for your help...

  5. #35
    Join Date
    Aug 2005
    Location
    West of the Animas
    Beans
    20,228
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: How to install RTL8187 driver to Ubuntu 13.04?

    I'll let you know about it if you don't mind?
    Not at all. I will be very interested as will, I'm confident, a few searchers. Please keep us updated.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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