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

[Gmt]

Bem observado Carlos!
73
Gamito - CT1CZT

2017-11-13 18:47 GMT+00:00 Carlos Fonseca <ct1gfqgrupos  gmail.com>:

> Na india só fazem phonia???
>
> João Costa > CT1FBF <ct1fbf  gmail.com> escreveu em seg, 13/11/2017 à s
> 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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