Can you check the Quantum gain,sea clutter etc are all set to AUTO? You should be seeing some targets around you as long as the quantum has a reasonable view of the surrounding area, (it is not being used inside a building for example)
You should at least see something, I assume that you can control the Quantum and turn it on and off and you can hear it rotating when set to transmit?
Other than this,it must be faulty and should be returned to the dealer.
Indeed, I intend to check the voltage at the unit before bringing it down.
Surely not you concern, but I bought Quantumm and Axiom in December and still waitting for the mail rebate, which has been processed about two months ago??