Reverse engineering and "unlocking extras" in a Hantek 1832C LCR meter

For some time I've felt the need to have a piece of equipment allowing me to measure inductance, impedance and a broader range of capacitance values. For the rest of the relevant types of measurements I've already had a digital multimeter and an oscilloscope, which have proven sufficient so far.

Reverse engineering of an Aircraft Transponder

Some time ago I obtained from eBay a transponder control head. You may start asking what is such thing, and what does it have to do with a blog where most frequently, home automation topics are discussed.