Very interesting, Stewart
The frequency is 2.8 GHz That means the wavelength is pretty close to the 4 inch geometry of the ferrite billet of the Manelas devise. There is a picture of it in the slides. You can see that the way that the permanent magnetic field is imprinted will allow a needle to levitate, which is a bit unusual. If the waves (at least the component of the wave packet which is not sinusoidal) are “longitudinal” in one dimension, from an active transmitter to the receiver - then they are somewhat like sound waves (vibrations that eventually propagate in the receiver by means of adiabatic compression and decompression. They cannot couple with the receiver unless it is active as well (powered). This billet is made of compressed nanopowder of either strontium ferrite or barium ferrite. From: ChemE Stewart Radar/Call Sign MHT Model ASR-9 Max Pulsed Power (Watts) 1,300,000 Gain (dBi) 34 Frequency (MHz) 2,800 RPM 12.5 Max Power Density (W/m2) @ 10 km 10.39 Pulse Duration(uSec) 1.00 Pulse Repition Factor (Hz) 1,000 Range Est. (Miles) 60 Latitude 42.937248 Longitude -71.437286 FIPS 33011 County Hillsborough State NH
