#1. You have to be a Tech licensed ham radio operator.
#2 You have to have an H/T that can received the AM or CW modulation of either unit on the 70cm ham band.
That said, I have an old ICOM T-90A that will do AM or FM and received the AM tracker fine. A Kenwood TH-F6A is needed to receive the CW modulation on the "b" band. There are a few other receivers out there that can do that trick.
https://adeptco.com/adeptinstruments/Receivers.htm
One cannot use an FM scanner to receive. It won't work as the range will be cut to nothing. Power is 8mW but the mode can help at the lower power along with a good receiver. I wouldn't use it alone with a flight that is expected to land
3 miles or more away but as a backup to a GPS tracker or primarily in a less rigorous flight it should be fine. I wouldn't consider unless you have the appropriate receiver on hand or am willing to invest in one. You could always call Tommy at Adept
and talk to him about them. I have to warn you, he is very averse to anyone who is not a ham or willing to get licensed so don't even consider asking to make an exception in one's case to sell a unit to an unlicensed person.
Kurt