watts

I was looking to build an amplifier from a DIY kit for uhf/vhf. Is there such a thing to have dual band? Or would I need 2 separate ones? Either way, if you know of some good DIY kits, please post the link below. I am using uhf/vhf HT 5watts. Uv5r and ft3d. I don't know enough about...

I understand the technical difference between ERP and transmitter output power, but I was wondering if someone could help me understand the intent of the difference as seen on FCC licenses. I have several licenses in the Public Safety Pool and I've noticed that on one frequency/location I'm...