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How to get the best range using HyperWRT?

Discussion in 'HyperWRT Firmware' started by starrwsn, Dec 27, 2005.

  1. starrwsn

    starrwsn Guest

    I have a WRT54GS v.2 and recently installed HyperWRT to get better range. Is going 100% transmit power too much? Or would it be fine? Is there anything else i can do to increase range?
     
  2. msg_moi

    msg_moi Network Guru Member

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  3. cobra2000

    cobra2000 Network Guru Member

    Personally, I wouldn't run more than 50% power...too much heat, interference if you have other wireless devices (phones, networks, etc.) in the area. Honestly, I haven't been able to verify if the power settings actually do anything...My other PC is about 25 feet away, and I see no difference between the factory setting and 100% power...granted, I have plaster walls here. FWIW.

    Have you tried a longer antenna on the client computer?
     
  4. Chuck_IV

    Chuck_IV Network Guru Member

    I do see a difference using different power settings, but more power ^= better signal in every case. I settled on 68%(whatever the dropdown box choice is, above 50%) as my setting for both my routers(WRT54GS and a WRT54G converted to a GS, running WDS). It gains me 3 or so db, but any higher power wasn't gaining me anything noticeable and was just adding noise. I couple that 3 db gain with the Radio Shack 5.5db antennas I gain another 3 or 4 db for about 7-8db overall, between the 2 routers. Doesn't sound like a lot but when you are -75 to -80 beforehand, every little bit helps.
     
  5. cobra2000

    cobra2000 Network Guru Member

    Sounds good, Chuck...that's where I have my power set at now...my friend went 200 feet or so up the street with a laptop, and was getting a 25% signal on me...he was getting about the same signal in the room where my client PC is located - and that's only 30 feet away - must be this building. I was thinking of getting a pair of those Linksys HGA7T 7db antennas for my WRT54G...you can buy the kit new on flea bay for around $40 shipped.
     
  6. Mercenary

    Mercenary Network Guru Member

    Ive read you shouldnt go above 80% unless you install some active cooling like a fan. The heat will just fry your board.
     
  7. asterger

    asterger Network Guru Member

    Reorient the WRT54 on it's face and unbend (straighten) the antennas gained at least 3 db.

    Perform a site survey, choose a channel frequency without interference. All frequencies overlap except for channels 11, 6, 1. If one of these are free in your area your done. However note that most 802.11 gear defaults to channel 6 with channel 1 adjacent to wireless cellphone frequencies. In conducting my survey I noted heavy interference on 6 with additional signals on 1, 10 and 11. I settled on channel 8 G-only.

    Force TX Antenna to Left provides higher radiated power as indicated by the wireless client.

    Cheers,

    -- Alan
     
  8. vincentfox

    vincentfox Network Guru Member

    This is common n00b mistake.

    Thinking of WiFi like AM radio. You know "10,000 Watts covers the tri-state area". Giving you idea that increasing transmit power will give you vast range.

    It won't. It only lets you shout louder. It makes more bars in a CLIENT utility which tells you what? Well it tells you how much signal it is receiving, not how much it is able to send back. So you may have great signal now from AP, but still terrible back the other way which is not shown to you by typical client utility. You boosted AP to 200 mW but laptop still has 32 mW. Should we continue the bad trend here by buying a high-power card for laptop? So we can all pollute up the 3 channels we have until they are completely unusable in urban areas?

    WiFi is 2-way. It is important to be able to hear the whisper of a distant station. A good high-antenna will increase gain for both transmit and receive.

    Every installation I have ever worked on, was better served by using good antenna and keeping power near factory levels. Even the simple home-made antenna at http://www.freeantennas.com/ do a great job.
     
  9. dareino

    dareino Network Guru Member

    I posted here awhile back when I too had poor signal strength. I have since built an EZ-10 corner antennae for the router and on the client side, a Cantenna (total cost 20bucks). My signal strength is a consistent 65-70%. My transmit power is set at 67%. When I get around to it, I will purchase a Speedbooster client card to go w/my newly flashed G to GS router and Ill be humming.....
    To show the consistency of this setup (wireless pc is about 35-40ft), we play BF2 at the same time w/no disconnects.
    Thibor rocks!

    dr
     

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