 The R7000 sported a new electrical design using modular circuit boards instead of the point to point hard wired chassis of all previous models.There were many other new features also such as dual tuning meters, squelch and several added bands such as Air, VHF 144 MHz through 175 MHz.The R7000 was built in Chicago for the first year but production was moved to Taiwan for the final two years, while all the models before had been made in the USA.