main lobe

Main lobe: Of an antenna radiation pattern, the lobe containing the maximum power (exhibiting the greatest field strength). Note: The horizontal radiation pattern, i.e., that which is plotted as a function of azimuth about the antenna, is usually specified. The width of the main lobe is usually specified as the angle encompassed between the points where the power has fallen 3 dB below the maximum value. The vertical radiation pattern, i.e., that which is plotted as a function of elevation from a specified azimuth, is also of interest and may be similarly specified. Synonym main beam. Source: from Federal Standard 1037C and from MIL-STD-188

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network repeaters
link
link level
link quality analysis
load
loading
loading characteristic
loading coil
lobe
local access and transport area
local battery

local call
lockout (telecommunication)
log periodic antenna
long haul communications
longitudinal redundancy check
longitudinal voltage
long term stability
loop back
loop gain
low performance equipment
low power communication device

machine readable medium
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magneto optic effect
main distribution frame
main storage
maintainability
maintenance
managed object
manchester code
mandrel wrapping
margin

maritime broadcast communications net
master frequency generator
master station
material scattering
maximal ratio combiner
maximum usable frequency
maximum user signaling rate
mean time between failures
mean time between outages
mechanically induced modulation
mediation function