I agree with C_Watkins, the high temperature is a big indicator of problems. Either there is a bad connection between the output transistor and the antenna (causing a high standing wave ratio) or a failed component. Yes, the module will get warm but should not get hot to the touch. I have two of the Hitec units with the Spectra module, an Eclipse and an older Prism, and both have performed flawlessly. I would suggest you send yours back to Hitec for troubleshooting, fortunately Hitec has one of the best warrentees in the business. Your failure does not sound typical.