Antennas installed at 18 U.S. high schools detected bursts of radio activity that can precede solar disturbances capable of ...

He turned to an RTL-based TV Dongle. Since the stock antenna was not cutting it, he decided to make one specifically for the 1090 MHz signal.

We’ve seen similar hacks before, like this one that uses an ethernet cable as an antenna. Getting away from RF, others have used fan noise, or even the once-ubiquitous HDD light.

The design and analysis of a pattern-selectable HF antenna located on a US Air Force C-12. The dual-mode antenna can be switched between a long-range sky wave mode and a short-range NVIS mode on the ...

The Fano Load problem illustrates this effect. While the possibility of Negative Gravity was mentioned in the original CFO paper, it was not used until recently when it was injected into optimization ...

Due to variation of High frequency as well as distance between transmitting and receiving stations, it is not always feasible to change the height of wide band HF dipole antenna in order to adjust ...

MilliBox the leader in compact benchtop mmWave and sub-THz antenna test systems continues to show innovation for the 2025 edition of the IEEE MTT-S International Microwave Symposium in San Francisco ...

The new Nurad blade antenna, Model 11D28500-10, offers ultra-broad bandwidth from 480 MHz to 2400 MHz. This antenna has peak gain of 4dBiL, with a nominal gain of 2.5dBiL, includes built-in lightning ...

Engineers test one of two high frequency radar antennas for Europa Clipper’s REASON instrument on a hilltop at NASA’s Jet Propulsion Laboratory. The antenna is the narrow copper tube, held straight by ...