the NX-1200AVK is the VHF Analog radio.
very low tier and yet a nice radio to start off with. You can add 1 digital mode to it down the road. NXDN, or DMR.
KPG-D6NK is the normal software for the entire series of NX-1000 Radios. There is wide band software for this also, with proper licenses that is.
(Ham or FCC License with approved wide band status)
As MMcK stated, it's a general use radio meant for the not so rough environments of work (mall, hotels, camp grounds or other lite business needs.
I would offer you to look at the NX-5000 line only because, first responders would tap into any two of the 3 digital modes for use.
P25, DMR, NXDN. Yes, costs more, but you don't have to purchase the options at time of ordering. You build it as you go, and grow.
The NX-3000, as MMcK mentioned, is also useful, but minus P25. NXDN and DMR but only 1 digital mode when used. Can be switched
back and forth with programming (codeplug) but is a very useful radio in the mid-tier category,.
Keep asking, those are good questions.