Mike, The two vendors that I've found are: 1) Palomar Products (formerly Hughes) at 619-931-3622 and 2) Unitek Miyachi at 818-303-5676. I've sent samples to both companies to propose a system for my application. I haven't decided who to go with yet. Are there any comments from current users of either system to help me decide? I've spoken with hand selected users from my reps and of course I received positive responses from both sides. Regards, Peter Wong Axiom Electronics, Inc.