ARLA/CLUSTER: AU2JCB - Indicativo especial de homenagem ao cientista indiano JAGADISH CHANDRA BOSE.

[Carlos Fonseca]

Na india só fazem phonia???

João Costa > CT1FBF <ct1fbf  gmail.com> escreveu em seg, 13/11/2017 às 18:22
:

> 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
> físico, biólogo, biofísico, botânico e arqueólogo, além de escrever ficção
> científica. Vivendo na �ndia 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 nível 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 Communication�.
>
> 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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-- 
73's de Carlos Fonseca, CT1GFQ
SKCC #466T
REP #1406
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