We investigate a cascade wide-band of radio spectrum in all direction surround the Indonesian National Radio Astron-omy Observatory in Timau. A statistical method is used to quantify the threshold of the noise level in order to determine the suitable signal strength limit for the site selection of a radio quite zone (RQZ). In this paper, some important Radio Frequency Interference (RFI) sources that can potentially disturb for any future radio astronomical observations in National Timau Observatory have been identified. Based on our comparison of all the radio spectra profiles between each direction observation, we found that, two radio source are dominantly active in all direction within the frequency range around 5.2 and 5.5 GHz. Meanwhile the spectra profile that has a frequency range larger than 10 GHz are relatively silent. But, oppositely, the spectra profile of the frequency range lower than 1 GHz is fully crowded by broadcasting radio sources.


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    Title :

    Observation of radio spectral at a future radio astronomy observatory site in Indonesia



    Conference:

    THE 9TH INTERNATIONAL SEMINAR ON AEROSPACE SCIENCE AND TECHNOLOGY – ISAST 2022 ; 2022 ; Bogor, Indonesia


    Published in:

    Publication date :

    2023-12-11


    Size :

    11 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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