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This makes some sense. I used to do a little CB radio work back in the 70’s and remember that antenna length was set as a function of the wavelength of the signal. For instance, our home “base” radio had a full wavelength antenna. Cars that had the long “whip” antennas were either half or quarter wave.
1 day ago · Here’s a frequency table for two-way radios operating in the 800 MHz band, which is commonly used for public safety and commercial communications: Service. Frequency Range (MHz) Typical Use. Public Safety. 806 to 809/851 to 854. Police, fire, and emergency medical services. Commercial. 821 to 824/866 to 869.
4 days ago · Frequency increase in the electromagnetic spectrum towards higher energy levels. The electromagnetic spectrum, often referred to as the "spectrum," is a vast range of electromagnetic waves that encompass radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
2 days ago · In 1980 I participated in the AWR Asia DX Contest promoted by the Radio Monitors International program produced by Mr. Adrian Petersen. The program was produced at the AWR Asia studios in Poona (India) and broadcast through the Sri Lanka Broadcasting Company via transmitters in Ekala and Colombo. Despite the reception being very difficult in ...
3 days ago · Taking advantage of Juno radio, electron and magnetic measurements within the source of Jupiter's auroral radio emissions, we analyze a new type of HectOMectric (HOM, a wavelength of 1 hm matching a frequency of 3 MHz) emissions observed in situ by Juno/Waves at frequencies f below the electron cyclotron frequency f ce. We first survey the Juno ...
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