The term " gain " is assumed to mean " antenna gain " and also " absolute " ( referenced to isotropic ) unless specifically stated to be relative.
22.
This means you have a stronger signal or have antenna gain in the direction of the narrow beam relative to a wide beam in all directions of an isotropic antenna.
23.
It is distinguished from broadband antennas, where the passband is large, but the antenna gain and / or radiation pattern need not stay the same over the passband.
24.
The higher frequency K u-band systems tend to resemble DBS systems and can use a smaller dish antenna because of the higher power transmissions and greater antenna gain.
25.
This allows the array to act as a single antenna, generally with improved directional characteristics ( thus higher antenna gain ) than would be obtained from the individual elements.
26.
This formula represents a well-known fact, that the lower the frequency ( the longer the wavelength ), the bigger antenna is needed to achieve certain antenna gain.
27.
Since it is constructed from dipoles, often its antenna gain is expressed in dBd, but listed only as dB . Obviously this ambiguity is undesirable with respect to engineering specifications.
28.
To use the equation as written, the antenna gain may " not " be in units of decibels, and the wavelength and distance units must be the same.
29.
PropNET " probes " transmit position reports, along with information on transmitter power, elevation, and antenna gain, at various frequencies to allow monitoring stations to detect changes in propagation conditions.
30.
"' EIRP "'is differentiated from effective ( or equivalent ) radiated power ( ERP ) by use of absolute antenna gain in the calculation instead of relative antenna gain.
