The subject of diagnosis definition encompasses a wide range of important elements. What is the difference between channel & frequency & band in RF?. I am reading about wireless networks basics. I found three terms I cannot find exact definition for: channel, frequency band, frequency. Can anyone give exact definitions for them?
What is dB (ฮผV/m), and what are its applications?. Building on this, a dB (ยตV/m) is a decibel relation for a sub-unit of V/m, which is appropriate for units of the e-field intensity of a radiated e-m wave existing between two physical points in space separated by a linear distance of one meter. From another angle, these units are used commonly by the FCC, and other regulators of the use of the e-m spectrum. Examples: 0 dB (ยตV/m) = 1 microvolt/meter; 60 dB (ยตV/m) = 1,000 ...
What is dBm and why is it used rather than watts?. That said, it's a convenience, not a definition. dBm certainly is a complete term when properly used, and anyone specifying a voltage in dBm without making whatever conveniences are in effect obvious probably shouldn't be writing datasheets, or anything technical for that matter.
Why is antenna aperture a function of wavelength?. From another angle, that does seem reasonable, but I haven't been able to follow that line of thought to a good conclusion. Imagine an ideal isotropic antenna: the gain is a constant 1 by definition, but as the frequency goes down, the effective aperture increases. Antenna Radiation and Common mode currents [closed].
In relation to this, you literally cite the definition of common mode current, I can only repeat: the current running on the braid and the center are not equal and opposite anymore. Building on this, resonance vs resonator in antenna - Amateur Radio Stack Exchange. The real definition of a resonator is to store energy in each cycle of excitation. It is common to misuse that term to mean zero reactance, but that is the beginning of the confusion.
Once you distinguish resonance from the surface impedance phenomenon, the confusion will go away. Additionally, most antennas, like dipoles, monopoles, and full wavelength loops, are not resonators. Most antennas are standing ... rfi - Can my neighbor's ham radio antenna be interfering with my .... Diagnosis As other answers have suggested, it's quite possible for ham radio transmissions to interfere with a DSL signal.
Similarly, if your Internet connection is cable, though, then the tech who suggested the ham might be the problem was probably smoking something. What's the pinout for "Kenwood" 2.5mm TRS/3.5 mm TRS connector?. I've seen many Chinese HTs (Baofeng, Puxing, Wouxun, QuanSheng etc.) using the so-called "Kenwood connector", which has a 2.5 mm TRS connector and a 3.5 mm TRS connector. It looks something like th...
450-ohm ladder line fact vs fiction - Amateur Radio Stack Exchange. I am considering many possible doublet antenna scenarios for a multi-band antenna (80 meters to hopefully, 6 meters) customized to my specific home situation.
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