I don't think CM11 includes a radio, I had UCLD3 before on 10.2 (got it when I had to reformat my phone entirely through Odin) and it's persisted across several ROMs now. I use my i717 on T-Mobile and had perfect LTE with UCLD3 and CM10.2, but I got my Note 3 now so my i717 is WiFi only now. Using CM11 now and although no SIM is inserted it still shows UCLD3 in the status.
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Samsung Galaxy Note 3 SM-900T 32GB
Samsung Galaxy Note SGH-i717 16GB
HP TouchPad 32GB
Archos 43 Internet Tablet - 16GB + 32GB mSD
Dell Axim X50v - 128MB + 16GB CF