To MR. Bob......what first attempt? these are the guys who designed the lexicon 700 t and the matching tcm3 rf module. they couldn't get it right on those units too. you had to go in a do modifications on them to get any reliable range. also they had the same gounding problems on those rf modules as well. as far as a inexpensive system the jvc receiver with rf control works 99% of the time with a true 90 foot radius everytime and retails for 800.00 and they throw in a surround receiver.