New member in the lab family: A precision power measurement device.
This device is capable of measung power qualitatively up to 26GHz.
The funny thing is that although the design comes from 1975, it´ s still in use today and it still has its price. It´s the only thing you can buy to achieve the measuring precision for these frequencies which doesn´t have the price of a new familiy car - 40 years later. At the time of release it was different.
Sensor head is the 8485a - was lucky to shot one on ebay for half the price they usually go.
But now finally we get exact measurements for the EMDrive, which will help to optimize the overall design.
The EMDrive itself will get its own power meter on board - in form of a small chip with less accuracy but good enough to do the job. But until then, this buddy will help to get qualitative results.

The 26GHz equipment is quite expensive, for example a simple 2.92mm to SMP adapter costs over USD 70 - but it´s important to have the connectors and cables rated for the max. frequency, because in other cases the frequency response of the devices will have notches. Imperfections in the connectors lead to resonances and reflections inside the connectors, the connectors act like a weak cavity.