Measuring the RL at 40GHz of cardboard painted with a spray of zinc to check how the paint performs.
#ghz_bands https://t.co/Iihy4kqGuU
![](https://www.eb3frn.net/wp-content/uploads/2018/09/DmMBPjPWwAA__Uw-624x468.jpg)
Measuring the RL at 40GHz of cardboard painted with a spray of zinc to check how the paint performs.
#ghz_bands https://t.co/Iihy4kqGuU