Snazzy. Expensive. Easily seen on X-band and OTHB RADAR systems
see also https://www.iflscience.com/chinese-radar-spots-plasma-bubbles-over-the-pyramids-of-giza-75896
“There, China has built the Low lAtitude long Range Ionospheric raDar, or LARID. This is a radar system that can keep an eye on the irregularities created by plasma bubbles. Just as radio transmissions can be sent across the world by making them reflect against the plasma of the ionosphere, radar can be sent the same way. LARID’s ability is in receiving the signals back and interpreting them as the variation created by these plasma bubbles. Its detection range is a whopping 9,600 km (5,965 miles), a distance that has tripled in less than half a year as its performance has improved.”
“Beyond its scientific applications, LARID’s technology holds significant implications for military systems. China’s military has deployed over-the-horizon radars similar to LARID, which can detect stealth aircraft such as the F-22 fighter jets. These advanced radars suggest that even more sophisticated versions are being developed for defense purposes, offering higher resolution and better detection capabilities. This technology reinforces China’s efforts to strengthen national security through...”