“Although it was a task that the MIT Radiation Laboratory considered impossible to finish before the end of the war, the engineers at the Evans Signal Laboratory modified the AN/TPS-3 into a mortar-locating radar known as the AN/TPQ-3. According to Zahl, the engineers at the lab worked almost 96 hours of non-stop effort to prepare the AN/TPQ-3 in time for deployment in the Pacific. The AN/TPQ-3 is considered the first prototype radar unit for mortar protection”
🤖 found no collaboration.
However it did find a US mortar locating radar.
Wiki
“Although it was a task that the MIT Radiation Laboratory considered impossible to finish before the end of the war, the engineers at the Evans Signal Laboratory modified the AN/TPS-3 into a mortar-locating radar known as the AN/TPQ-3. According to Zahl, the engineers at the lab worked almost 96 hours of non-stop effort to prepare the AN/TPQ-3 in time for deployment in the Pacific. The AN/TPQ-3 is considered the first prototype radar unit for mortar protection”
https://en.wikipedia.org/wiki/VT-158
A mystery! 🕵🏻♀️