This article originally appeared in our World’s Greatest Telescopes special issue from summer 2012. The pursuit of radio astronomy is a quest for cosmic whispers. By the time radio telescopes collect ...
The mystery of fast radio bursts (FRBs) from space may be a step closer to being solved. Astronomers studying a repeating signal from a nearby galaxy have detected radiation at the lowest frequency of ...
What are harmonics in RF systems? A given signal’s second harmonic is approximately twice the given signal’s fundamental frequency. Ideally, amplifiers are expected to have zero non-linearities in the ...
If you’ve ever heard sirens screaming from nearby streets and wished you knew what was happening, there’s a simple solution: a police scanner. These devices are somewhat similar to your average radio, ...
170.550 Los Padres National Forest Forest Net 1 415.325 Los Padres National Forest Forest Net 1 171.550 Los Padres National Forest Service Net 1 415.400 Los Padres National Forest Service Net 1 ...
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