List of radio propagation topics


List of radio propagation topics

This is a list of radio propagation terms.__NOTOC__

A

a index -
A-index -
aa index -
active prominence -
active prominence region (APR) -
active region -
active surge region (ASR) -
active dark filament (ADF) -
AE index -
Air Force Geophysics Laboratory (AFGL) -
arch filament system (AFS) -
Air Force Space Forecast Center (AFSFC) -
ak index -
Alfven wave -
Alaskan Meteorological Data System (ALMEDS) -
am index -
amateur radio bands -
Radio Amateur Satellite Corporation (AMSAT) -
An index -
anomalous propagation -
antenna height above average terrain -
ap index -
aphelion -
apogee -
arcade (solar physics) -
arch filament system -
Area to Area Lee Model -
American Radio Relay League (ARRL) -
As index -
American Standard Code for Information Interchange (ASCII) -
atmospheric duct -
atmospherics -
aurora -
auroral electrojet -
auroral oval -
AUTODIN -
autumnal equinox -
Air Weather Service (AWS) -

B

B-angle -
background X-ray level -
backscatter -
Bartels' rotation number -
bipolar magnetic region -
birefringent filter -
blind zone -
bow shock -
bright point -
bright surge on the disk (BSD) -
bright surge on the limb (BSL) -
brightness temperature -
burst (solar physics) -
burst transmission -
butterfly diagram -

C

C index -
Carrington longitude -
Cassegrain antenna -
Cassegrain reflector -
Castelli U -
celestial equator -
celestial sphere -
cellular telephony -
centimeter burst -
central meridian distance (CMP) -
central meridian passage (CMD) -
Chapman function -
chromosphere -
chromospheric event -
chromospheric network -
Ci index -
city model -
clutter (radar) -
clutter folding -
co-channel interference -
coherence bandwidth -
coherence time -
COMEDS -
communication with submarines -
comprehensive flare index (CFI) -
conjugate points -
continuum -
continuum storm (CTM) -
convection -
Coordinated Universal Time -
corona -
coronagraph -
coronal hole -
coronal loops -
coronal mass ejection -
coronal rain (CRM) -
coronal stream -
coronal streamer -
coronal transients -
corrected geomagnetic coordinates -
cosmic noise -
cosmic ray -
Cost 231 Model -
Cp index -
Crane Global Model -
Crane Model for Satellite Paths -
Crane Two Component Model -
critical frequency -
crochet (solar physics) -
CTM -
cusp (solar physics) -

D

D component of the geomagnetic field -
D region -
D-Layer -
DAH Model -
Disk And Limb Activity Summary (DALAS) -
dark surge on the disk (DSD) -
decibel -
declination -
delay spread -
differential charging -
differential particle flux -
differential rotation -
dip equator -
dipole antenna -
directional antenna -
disappearing solar filament (DSF) -
disparition brusque -
diurnal phase shift -
diversity scheme -
data management system (DMS) -
Defense Meteorological Satellite Program (DMSP) -
Department Of Commerce (DOC) -
Department Of Defense (DOD) -
Doppler effect -
Doppler shift -
dose rate -
Dst index -
ducting (radio propagation) -
DXing -

E

E region -
E-layer -
E-skip -
Early ITU Model -
Earth-Moon-Earth -
eccentric dipole -
eclipse -
ecliptic -
EFR -
Egli Model -
EHF -
electric beacon -
electrojet -
electromagnetic electron wave -
electrostatic discharge -
ELF -
emerging flux region -
emission line -
emission measure -
environmental attenuation model -
Earth Observing System (EOS) -
ephemeris -
EPL -
equatorial electrojet -
equinox -
Environmental Research Laboratories (ERL) -
eruptive -
eruptive prominence on limb -
Es-layer -
European Space Agency (ESA) -
ESD -
estimated hemispherical power input -
EUV -
Evershed effect -
exosphere -
expert system -
extraordinary mode -
extreme ultraviolet -
extremely high frequency -
extremely low frequency -

F

F corona -
F region -
F-layer -
f-spot -
F1-layer -
F2-layer -
facula -
fade margin -
fading -
fading distribution -
fibril (solar physics) -
filament (solar physics) -
filament channel -
flare (solar physics) -
flutter -
FM DX -
fmin -
foEs -
foF2 -
follower spot -
Forbush decrease -
forward scatter -
Fraunhofer spectrum -
free-space path loss -
frequency of optimum transmission -
frequency-hopping spread spectrum -
Fresnel zone -
Friis transmission equation -

G

gamma (unit of magnetic field intensity) -
gamma rays -
GEOALERT -
geocorona -
geomagnetic activity -
geomagnetic elements -
geomagnetic field -
geomagnetic storm -
geomagnetic storm level -
geomagnetic time -
geomagnetism -
geosynchronous -
Geostationary Meteorological Satellite (GMS) -
GMT -
Geostationary Operational Environmental Satellite (GOES) -
GPS -
gradual commencement -
granule (solar physics) -
gray-line -
green line -
Greenwich Mean Time -
ground wave -
ground level enhancement (GLE) -
ground-level event -
group velocity -
Goddard Space Flight Center (GSFC) -

H

H alpha -
H component -
H-component of the geomagnetic field -
Hale boundary -
High Altitude Observatory (HAO) -
Hata Model for Open Areas -
Hata Model for Suburban Areas -
Hata Model for Urban Areas -
heliographic -
heliopause -
heliosphere -
helmet streamer -
hemispherical power input -
High Energy Proton and Alpha Detector (HEPAD) -
high frequency -
high latitude -
high-speed stream -
High Latitude Monitoring Station (HLMS) -
homologous flare -
HRS type antennas -
Hubble Space Telescope (HST) -
Hyder flare -

I

International Association of Geomagnetism and Aeronomy (IAG) -
International Cometary Explorer (ICE) -
International Geophysical Year (IGY) -
Interplanetary Monitoring Platform (IMP) -
International Magnetospheric Study (IMS) -
inclination of the geomagnetic field -
initial phase -
integral particle flux -
International Consortium of Magnetic Observatories (INTERMAGNET) -
intermediate-field region -
interplanetary magnetic field (IMF) -
invariant magnetic latitude -
inversion (meteorology) -
inversion line -
ion-acoustic wave -
ionogram -
ionosphere -
ionospheric absorption -
ionospheric reflection -
ionospheric sounding -
ionospheric storm -
international standard relative sunspot number -
International Sun Earth Explorer-3. (ISEE-3) -
International Solar-Terrestrial Program (ISTP) -
ITU Model for Indoor Attenuation -
ITU Rain Attenuation Model -
ITU Rain Attenuation Model for Satellites -
ITU Terrain Model -
International Union of Geodesy and Geophysics (IUGG) -
International Ursigram and World Days Service (IUWDS) -

J

Joan-Eleanor system -
Jet Propulsion Laboratory (JPL) -
Johnson Space Center (JSC) -

K

K corona -
K index -
K-factor -
Kelvin-Helmholtz instability -
Kennelly-Heaviside layer -
Km index -
knife-edge effect -
Kp index -
Kitt Peak National Observatory (KPNO) -

L

latchup -
long-delayed echo (LDE) -
leader spot -
LEO -
light bridge -
light curve -
limb (solar physics) -
limb darkening -
limb flare -
Line-of-sight propagation -
linear energy transfer (LET) -
List of European medium wave transmitters -
lobe (solar physics) -
Log-distance path loss model -
Long delayed echo -
long duration -
longitudinal component -
Longley–Rice model -
loop prominence system (LPS) -
low frequency -
low probability of intercept -
low-gain antenna -
low-power communication device -
lowest usable frequency (LUF) -
lowest usable high frequency -

M

M(3000) -
magnetic bay -
magnetic cloud -
magnetic local time -
magnetic sunspot classifications -
magneto-ionic double refraction -
magnetogram -
magnetohydrodynamics (MHD) -
magnetopause -
magnetopause current sheet -
magnetosheath -
magnetosphere -
magnetotail -
MAGSTORM -
main phase -
material scattering -
Maunder minimum -
maximum usable frequency (MUF) -
medium frequency -
Medium Energy Proton and Electron Detector (MEPED) -
mesosphere -
meteor burst communications -
meteor scatter -
micropulsation -
microwave burst -
microwaves -
middle latitude -
Mie theory -
miniprop -
Moreton wave -
mound prominence (MDP) -
Marshall Space Flight Center (MSFC) -
Multipath -
multipath -
mush zone -
MW DX -

N

Naval Astronautics Group (NAG) -
National Aeronautics and Space Administration (NASA) -
National Bureau of Standards (NBS) -
National Center for Atmospheric Research (NCAR) -
Near Vertical Incidence Skywave -
National Environmental Satellite, Data, and Information Service (NESDIS) -
National Environmental Satellite Service (NESS) -
neutron monitor -
New Horizons -
National Geophysical Data Center (NGDC) -
National Geophysical and Solar-Terrestrial Data Center (NGSDC) -
National Institute of Standards and Technology (NIST) -
National Oceanic and Atmospheric Administration (NOAA) -
National Optical Astronomy Observatories (NOAO) -
noise storm -
non-great-circle propagation -
non-line-of-sight propagation -
Northern Meteorological Data System (NORMEDS) -
Naval Ocean Systems Center (NOSC) -
Naval Research Laboratory (NRL) -
National Science Foundation (NSF) -
National Solar Observatories (NSO) -
National Space Science Data Center (NSSDC) -

O

Okumura Model -
On-Line Data Systems (OLDS) -
One Woodland Terminal Model -
ordinary mode -

P

P-angle -
p-spot -
p.f.u. -
particle flux unit -
path loss -
path profile -
path quality analysis -
penumbra -
perigee -
perihelion -
persistence -
phantom command -
photosphere -
photospheric network -
Pioneer 10 -
Pioneer 11 -
Pioneer program -
pitch angle -
plage (solar physics) -
plage corridor -
plasma -
plasma frequency -
plasmapause -
plasmasheet -
plasmasphere -
Point to Point Lee Model -
Point-to-Point propagation model -
polar cap absorption (PCA) -
polar crown -
polar plume -
polar rain -
pore (solar physics) -
post-flare loops -
power delay profile -
preheating -
PRESTO -
prominence -
Propagation path obstruction -
proton event -
proton flare -
pulsation -

Q

Q index -
quiescent prominence -
quiet (solar physics) -
quiet day curve (QDC) -

R

R-number -
radar aurora -
radiation belt -
radiation scattering -
radio blackout -
radio burst -
radio emission -
radio frequency -
radio horizon -
radio propagation beacon -
radio propagation model -
RAIM -
ray tracing (physics) -
Rayleigh fading -
Rayleigh–Taylor instability -
reconnection -
recurrence -
red line -
region number -
relative transmission level -
Remote Geophysical Observing Network (RGON) -
Rician fading -
right ascension -
rigidity (solar physics) -
ring current -
riometer -
Radio Solar Telescope Network (RSTN) -
rudimentary (solar physics) -
Regional Warning Center (RWC) -

S

S component -
s.f.u. -
satellite anomaly -
Schumann resonance -
Science Institute (ScI) -
scintillation -
sector boundary -
Space Environment Laboratory (SEL) -
selective fading -
Space Environment Laboratory Solar Imaging System (SELSIS) -
Space Environment Monitor (SEM) -
Solar Electro-Optical Network (SEON) -
Space Environment Services Center (SESC) -
Space Forecast Center (SFC) -
Solar Geophysical Activity Summary (SGAS) -
Shadow loss -
shock -
short wave fade -
shortwave relay station -
Solar Influences Data Analysis Center (SIDC) -
side lobe -
sidereal -
Signal-to-Interference Ratio -
simultaneous flares -
single event upset (SEU) -
Single Vegetative Obstruction Model -
skip (radio) -
skip zone -
sky wave -
skywave -
Solar Maximum Mission (SMM) -
smoothed sunspot number -
Synchronous Meteorological Satellite (SMS) -
Software-defined radio -
solar activity -
solar constant -
solar coordinates -
solar cycle -
solar flare -
solar flare effect (SFE) -
solar flux -
solar flux unit -
solar maximum -
solar minimum -
solar radiation storm level -
solar radio emission -
solar rotation rate -
solar sector boundary -
solar wind -
solstice -
Solar Observing Optical Network (SOON) -
South Atlantic anomaly -
Southern Hemisphere Auroral Radar Experiment -
Space weather -
spacecraft charging -
Space Physics Analysis Network (SPAN) -
spicule (solar physics) -
sporadic E -
Sporadic E propagation -
spray (solar physics) -
spread F -
Spread spectrum -
stratosphere -
STRATWARM -
subflare -
substorm -
sudden commencement -
sudden impulse -
sudden ionospheric disturbance (SID) -
sunspot -
sunspot classification -
sunspot cycle -
sunspot number -
super high frequency (SHF) -
supergranulation -
Surface wave -
surge -
SWF -
Solar X-ray Imager (SXI) -
sympathetic flare -
synodic -
synoptic chart -

T

T-index -
Tracking and Data Relay Satellite (TDRS) -
trans-equatorial propagation (TEP) -
total electron content (TEC) -
Total Energy Detector (TED) -
telemetry -
tenflare -
terrain model -
thermal fade -
thermosphere -
Time signal -
Television and Infrared Radiation Observation Satellite (TIROS) -
Table Mountain Observatory (TMO) -
total electron content -
transition region -
transverse -
troposphere -
tropospheric scatter -
tropospheric wave -
TV and FM DX -
TV-FM DX -
two-ribbon flare -

U

U-burst -
UHF -
UHF CB -
ultrahigh frequency -
ultraviolet -
umbra -
UMR -
unipolar magnetic region -
Universal Time -
unsettled (solar physics) -
upsets (solar physics) -
Union Radio Scientifique Internationale (URSI) -
United States Air Force (USAF) -
United States Geological Survey (USGS) -
United States Space Forecast Center (USSFC) -
UT -
UTC -

V

Van Allen radiation belts -
vernal equinox -
very high frequency -
very low frequency -
VHF -
VLF -
VMB4 -
Voyager 1 -
Voyager 2 -
Voyager program -

W

wave propagation -
World Data Center (WDC) -
Weibull fading -
Weissberger's model -
White Alice Communications System -
white light -
white-light flare -
wing (spectroscopy) -
World Meteorological Organization (WMO) -
Wolf number -
World Warning Agency (WWA) -
WWV -

X

X band -
X-band -
X-ray -
X-ray background -
X-ray burst -
X-ray flare class -
X-ray flare termination -

Y

yellow line -
Young Model -

Z

Z component of the geomagnetic field -
Zeeman effect -
Zurich sunspot classification -
Zurich sunspot number -

See also

*List of radiation topics

External links

* http://www.swpc.noaa.gov/info/glossary.html
* http://ecjones.org/propag.html


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