Here you will find some info on reception, and build.prop mods for the OpTimuS Roms
For as long as I can remember Custom Stock Rom's have always had worse reception than Stock for me. It took me a while, but I finally figured out why.
In the build.prop, there are adds that Devs make to improve reception and cell signal. The bad thing is, it doesn't work for everybody. So I have experimented with the build.prop to make it as close to stock reception as possible. These are the biggest culprits for worse reception.
Also there are some claims of mods that improve speeds and/or reception. Read here. http://www.xda-developers.com/androi...-for-yourself/
I have commented the adds out and it was true they didn't help/hurt a thing. OpTimuS uses three of them. But even though they are in there, they don't work, so I didn't change them.
If you want, you can modify your own build prop. But MAKE SURE you change permissions to rw-r-r, because sometimes it changes itself with mods and it won't boot up.
For those that prefer the easier way....see below.
I don't know how/why Lrod could make the reception so sensitive, but he has. That little red "x" shows up waaay more than with the stock LGSystemUI. Also the "x" seems to be for cell signal , because you can still get data. I average 8% per day on battery use for "Cell Standby".
These should improve your reception on OpTimuS Roms
Wipe /cache, /dalvic and flash in recovery.
OpTimuS DE5.0 - modded - http://d-h.st/SNl
Original OpTimuS DE5.0 build.prop - http://d-h.st/kZg - use this to restore to Lrod's original build.prop
For older versions of the Optimus series, PM me and I can modify it for you. But you don't wanna use the older ones.