they are also certified for marine use (which narrowband rules don't apply) and GMRS (exempt as well), so they make great LEGAL marine/GMRS/Ham combo radios. They are built very well, old school construction, on par with an HT600/MT1000. The fact that there are so many still around working after 20 years proves this. They also made a vehicle adapter with an amplifier that cost as much as the radio. I have only seen one in my entire life.
You'll need a SLOW computer to run the programming software, and real DOS. Don't even think about running it on some dual core box. An old 486 laptop with a real serial port does the trick every time. The OEM programming RIB/cable is expensive and hard to find, but building a simple CAT interface is easy, and sacrificing an MH-20 speaker mike to get the connector may have to do.
Anyone has one in good shape they want to sell, PM me. Especially if it's the later "Vertex Duo" labeled 2070's.
I can also program, tune and test these for a reasonable price if any one needs help with them.