Radio‐frequency spectrum of metastable N2(A3Σu+). II. Fine structure, magnetic hyperfine structure, and electric quadrupole constants in the lowest 13 vibrational levels

1973 ◽  
Vol 58 (10) ◽  
pp. 4625-4665 ◽  
Author(s):  
David De Santis ◽  
Allen Lurio ◽  
Terry A. Miller ◽  
Robert S. Freund
Keyword(s):  
Fine Structure ◽  
Radio Frequency ◽  
Hyperfine Structure ◽  
Frequency Spectrum ◽  
Electric Quadrupole ◽  
Magnetic Hyperfine ◽  
Vibrational Levels ◽  
Magnetic Hyperfine Structure ◽  
Radio Frequency Spectrum

Magnetic hyperfine structure of 125Te in ferromagnetic Pd2MnSb

1975 ◽  
Vol 54 (4) ◽  
pp. 293-294 ◽  
Author(s):  
P. Boolchand ◽  
M. Tenhover ◽  
S. Jha ◽  
G. Langouche ◽  
B.B. Triplett ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Magnetic Hyperfine ◽  
Magnetic Hyperfine Structure

Radio Frequency Support for Space Systems Based on Multi-Satellite Constellations Taking into Account the ITU-R Requirements and the WRC-19 Results

2021 ◽  
Vol 8 (4) ◽  
pp. 72-76
Author(s):  
А. А. Talanov ◽  
◽  
S. А. Fedotov ◽  
А. М. Stepanov ◽  
◽  
...  
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
Communication Systems ◽  
Electromagnetic Compatibility ◽  
Satellite Communication ◽  
Space Systems ◽  
Satellite Constellations ◽  
Broadband Internet ◽  
State Commission ◽  
Radio Frequency Spectrum

Deployment of space systems based on multi-satellite constellations to provide broadband Internet access and communication services acutely raises the question of their radio frequency support including issues of electromagnetic compatibility (EMC) between competing space systems using multi-satellite constellations (StarLink, OneWeb, Kuiper, etc.), their EMC with traditional space systems (satellite communication systems that employ spacecraft in geostationary and non-geostationary orbits, space systems of other services), as well as regulatory issues of entering into service and staged deployment of space systems. The article formulates the problematic issues of radio frequency support of modern space systems taking into account the trends of satellite constellations deployment and proposes the solutions with consideration to international and national requirements in the regulation of radio frequency spectrum including the ITU requirements and the requirements of Russian State Commission for Radio Frequencies. The paper shows the ways to share the radio frequency spectrum to meet new requirements of the World Radiocommunication Conference 2019 (WRC-19).

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