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==Review==This is a solid built and rugged transceiver. It has a Part 90 feel to it. There is even a menu option to disable the VFO for channel restricted use. It is powerful, at 65w output on high. However, it will get very hot when operating on high power, or long QSOs on medium power. The manufacture should have equipped it with a rear cooling fan, but they did not. Some wise ham operators have added a cooling fan on the back of the unit using a PC CPU cooling fan or something similar, especially when used as a base station.The two biggest criticisms of the TYT TH-9000D are the lack of a cooling fan, and even more significantly, the painfully non-intuitive programming. This thing is a #@!$ to program! The manual is inaccurate and nearly useless. We have taken the time to document the most important programming procedures here and verified them to be correct.Some units have been prone to internal speaker failure due to cold solder joint or related issue. This is an easy fix.Out of the box the unit goes below and above the legal 1.25 ham radio band. Take care in not transmitting out of band.