Description: I recently built an Elecraft T1 automatic tuner to use with my Flex-1500 SDR. The manual for the T1 ATU gives information about the protocol that is …
Jan 19 th , 2011
I recently built an Elecraft T1 automatic tuner to use with my Flex-1500 SDR . The manual for the T1 ATU gives information about the protocol that is used to remotely control the ATU allowing the ATU to retune the antenna on band changes. Elecraft only sell a cable to interface with the FT-817 so I began to wonder if I could interface the Flex-1500 with the T1 using an Arduino prototyping board.
Being a software defined radio the “brains” of the Flex-1500 actually run on a PC in the form of PowerSDR. I had a Google and it appeared that most people were using a piece of software called DDUtil to interface between PowerSDR and external hardware. I downloaded DDUtil, installed it and quickly came to the conclusion that I needed to create a device that acted as a “passive listener”.