I sent one of the Gemlink units to Steve, KB9MWR to look at. Steve has done an excellent job of documenting this unit. I must also include Joe, N9ZIA, who is responsible for this great write up. Sorry I missed giving credit to him originally. The Gemlink uses the K Band, the Ham part of this band is 24Ghz. I am not sure if the Gemlink equipment can be tuned and used on the Ham bands. I do not have the equipment that will work at this frequency. I am looking for some equipment, so that I can experiment with this system. Check out the write up about it.