Locomotive Handsets/MICS???? PLEASE HELP

Hey everyone,
I am really hoping someone can help me, I am trying to find out any and all info on locomotive radio's, models/brands in use today ect, especcialy for UPRR, I know BNSF/NSRR use a handset that looks like a phone on the radios they use. But what about UPRR? I can not find anything that has to do with loco radio for UPRR on the web , any and all help would be greatly appreciated!

UP seems to use Motorola microphones like one would see on a mobile radio. They tend not to have handsets which look like the old style telephone handset, as most other lines use.

Thanks for the help! Are there any pros/cons between the two or is it just company prefrence?

With the telephone style handset, one can put it up next to the ear. This is handy copying orders on a noisy locomotive.

The telephone style handsets are more expensive than the hand mics.

As far as I can tell only one company is producing them.

They (hand mics) are styled the same as public safety mics but are weighted a little more and have a little different wiring due to the aar wiring.