Do certain roms or mods effect signal ot service?

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I have cm7 latest stable release.

I seem to have more bars (3G or wifi) on sense roms and better reception versus this rom.

The problem is i have yet to find a sense rom that is not glitching.

If the answer is yes, and roms do make a difference in signal strength etc, what are my options?

Sent from my PC36100 using XDA App

Do certain roms or mods effect signal ot service?

Not at all, only the radios effect signal.

I seem to have more bars (3G or wifi) on sense roms and better reception versus this rom.

Keyword there is "seem". Some roms use a different "scale" to show how good your signal is. One bar on one rom can be the same signal as 5 bars on another.

Are there radios I can flash that increase my signal?