[Q] upgrading, want 1.49 radio to revert if needed

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Mecha xd ship s-off
hboot-6.04.1002
microp-/
eMMC-boot
baseband version 1.49.00.0406w_1,0.01.79.0331w_1
build number 2.11.605.19 cl360778 release-keys
kernel: 2.6.3510-g8b7aeb7


In short, I'm trying to find this 1.49.00.0406w radio before I upgrade the ROM to an ICS ROM.
I'm planning on this one:
forums.infectedrom.com/showthread.php/1912-ROM-Official-Thunderbolt-ICS-Rooted-Deodexed-Odex-Stock

I have made a CWM AND a 4ext backup, but I'm unsure if these back up the actual radio, so I'm trying to find the radio in case I have to back up...

Anyone know where to get a different radio in case the one in this thread fracks my phone?

Thanks!

InfectedROM Thunderbolt Radio Thread

Thanks much looking there now, juuust about to flashing the radio in prep for the infected rom ROM install