Radio Upgrade ? .. what is it ?

[NullMind]

I see some threads on upgrading "Radio" for the Universal .. what exacly is "Radio" ? ..

Null

[snorbaard]

Your device is a wireless phone. The "wireless" portion is hardware that connects to a base station via a radio frequency (800, 900, 1800MHz, etc).
These "Radio" upgrades talked about here are software upgrades that improve the functionality of the radio receiver built into your device.

[sulina]

I just upgraded the xda with the lates o2 rom is it important for me to install this upgrade?
Thanks