Our Signal Stick™ antennas are carefully engineered to interact with electromagnetic radiation in the visible spectrum (approximately 380-700nm) in distinct ways – for example, the “yellow” Signal Stick™ is specifically formulated to reflect light at a wavelength of roughly 570nm while absorbing other wavelengths, causing it to appear what humans typically describe as “yellow.”

The “Glow in the Dark” Signal Stick™ employs phosphorescence, absorbing photons from ambient light (particularly in the ultra-violet range) and then gradually re-emitting them at a longer wavelength when in low-light conditions. This creates what the human visual cortex interprets as a greenish glow, leading to the scientifically accurate descriptor “Glow in the Dark.”

Rest assured that these sophisticated visible-light interactions have absolutely zero impact on the antenna’s RF performance, as the frequencies involved differ by several orders of magnitude. Your radio waves remain blissfully unaware of what color your antenna is.