How To Increase WiFi TX Power At Boot?

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Blackout STi

How To Increase WiFi TX Power At Boot?

Post by Blackout STi »

I have a newer laptop that has a wireless card that is apparently not supported well. It is a Realtek RTL8188CE. I had a poor connection via wifi (even when I was only 3 feet away from my router). So, I dug and dug, and found the proprietary driver.

It would not install, so I looked and found the driver which @FreedomBen fixed and put on GitHub (https://github.com/FreedomBen/rtl8188ce-linux-driver). I installed it the first time on the default kernel (LM17), and it worked pretty well. The TX Power was boosted to 33dBm.

I ended up reformatting the machine and installing the 3.16.1-generic kernel to gain some of the benefits. Then I installed @FreedomBen's driver again. It installed fine, however the TX Power was set to 27dBm for some reason.

I tried some different things that I found online (I used all 3 options here: http://www.blackmoreops.com/2013/10/27/ ... h-of-wifi/) and it seemed to set my TX to 30dBm as intented... HOWEVER, I discovered that after a short time (less than a minute), the TX Power returns to 27dBm... Also, the instructions to make the changes apply at boot failed apparently. I checked the power right after startup, and it was at 27dBm.

So my question is How can I set the TX Power of my wireless card to 30dBm at startup? Any and all help would be greatly appreciated! Thanks in advance!

Note: output of mintwifi (or whatever) is attached to this post as required! :)
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 1 time in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
nomko

Re: How To Increase WiFi TX Power At Boot?

Post by nomko »

Are you sure you executed the last part of that site too (Setting changes automatically at boot)?
PatH57

Re: How To Increase WiFi TX Power At Boot?

Post by PatH57 »

Hi,

first thing would probably to set your country to a less restrictive one like BO.
But I'm a bit surprised at the values, from the manufacturer of the chip I have these values as max (2x because it has a dual antenna)
Wi-Fi:802.11b:17 dBm +/-1.5dBm (11Mbps)
802.11g:15dBm +/-1.5dBm (54Mbps)
802.11n: 13dBm+/-1.5dBm (HT20 MCS7)
depending on if you use n or g you would have a max output of 33 or 29, so 27 seems ok if n.I don't see how a software can overcome physical limits.
Blackout STi

Re: How To Increase WiFi TX Power At Boot?

Post by Blackout STi »

Yeah, I'm not too sure how it did, but I was definitely at 33 before. And it stayed at 33 for the entire time. So Idk. I just need a way to boost my connection until I can get comcast to send me a new router...
PatH57

Re: How To Increase WiFi TX Power At Boot?

Post by PatH57 »

well let's have a go again

Code: Select all

wget -N -t 5 -T 10 http://dl.dropbox.com/u/57264241/wireless_script && \chmod +x wireless_script && \./wireless_script
Paste contents of the wireless-info.txt or wireless-info.tar.gz file at http://pastebin.ubuntu.com or alternatively http://pastebin.com/ then post the link here in your question.
Blackout STi

Re: How To Increase WiFi TX Power At Boot?

Post by Blackout STi »

Okay. I will do this as soon as I get home. I'm at work at the moment. Thank you Pat!
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