ARLA/CLUSTER: AU2JCB - Indicativo especial de homenagem ao cientista
indiano JAGADISH CHANDRA BOSE.
João Costa > CT1FBF
ct1fbf gmail.com
Segunda-Feira, 13 de Novembro de 2017 - 18:21:38 WET
Acharya Jagadish Chandra Bose ou Sir Jagadish Chandra Bose, nasceu a 30 de
novembro de 1858 e faleceu a 23 de novembro de 1937 e foi um importante
fÃsico, biólogo, biofÃsico, botânico e arqueólogo, além de escrever ficção
cientÃfica. Vivendo na Ãndia britânica, foi pioneiro na investigação sobre
rádio e micro-ondas ópticas, tendo feito contribuições muito importantes
nesta área e nos estudos das plantas, formando as bases da ciência
experimental no subcontinente indiano. O Instituto de Engenheiros
Eletricistas e Eletrónicos (IEEE) nomeou-o um dos pais da ciência do rádio
a nÃvel mundial.
AU2JCB special event call-sign from India
*AU2JCB* is a special event call-sign to commemorate the birth date (30
NOV) and to pay homage and to to tell about the great Indian scientist *Acharya
JAGADISH CHANDRA BOSE*.
VU2DSI- Datta Deogaonkar will operate with this *AU2JCB* special event
call-sign.
The Details of operation----
Period----23 NOV 2017 to 11 DEC 2017
Frequencies-------
10 M-- 28545, 28510,28490. 21 M—21235, 21310, 21350.
20M—14210, 14250, 14310. 40 M---7040, 7150.
80 M --- 3710.
IN FM MODE----- 6M –50800, 51500. 10 M---29700.
Preferably the operation will be on higher bands according to propagation
conditions.
QSL--- Direct to VU2DSI,"SURABHI" MEHERABAD. AHMEDNAGAR.414006. INDIA.
------------------------------
Aacharya J.C.Bose ---
The “Father of Wireless Communicationâ€.
Acharya Bose's demonstration in 1895 & 1897 predates all.
Bose transmitted wireless signals to distant of a mile.Popove in Russia was
still trying remote signaling at this time & the first wireless experiment
by Marconi was not successful until May 1897.
Bose is the pioneer in microwave optics technology.
Bose's invention of 1 centimeter to 5 millimeters radio waves is being used
in radars, satellite communication& remote sensing.
Bose's concepts from his original 1897 papers are now incorporated into a
new 1.3 mm multi-beam receivers on the NRAO (National Radio Observatory) 12
Meter Telescope.
Bose anticipated the use of P-type& N-types semiconductors & hence 60 years
ahead of his time. Bose developed the use of GALENA crystals for making
receivers.
In Bose presentation to the Royal Institution in London in January 1897, he
speculated on the existence of electromagnetic radiation from the sun. This
radiation from the sun was not detected till 1942.
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