Tx Exciter testing

It is time to test the TX chain. The Quad amp that will produce 4 different phases (0,90,180 and 270 deg) is soldered on a proto board and is ready to play with.

tx_ex_test

Using CW carrier, generated by the soft DDS process in the firmware, it seems four distinct signals are created and ready to be fed to the next stage.

IMG_2400

Hopefully some more soldering this afternoon…

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