Improving wifi reception on jelly bean

view story

http://forum.xda-developers.com – I'm sorry if this question simply is redundant and only up to devs, but: The only thing bothering me on jelly bean roms is bad wifi signal. Is there anything that can be done to improve it? There seems to be a hole in my knowledge here, afaik modems do not affect wifi signal. Sent from horseback. (HowTos)