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美国能源部对Jio的错误频谱分配影响了世界最大望远镜的数据质量:报告
GMRT由塔塔基础研究所(TIFR)和国家射电天体物理中心(NCRA)建造和运营，工作频率范围为100MHz至1500MHz。它享有900MHz频谱的特殊保护，用于进行与天文学相关的活动。
频谱分配在限制频段(800MHz至900MHz)到依赖Jio由电信部据《印度快报》报道，世界上最大的望远镜——工作波长为米的巨型米波射电望远镜(GMRT)产生的数据“严重恶化”。Jio在这些波段的运行造成的干扰也阻碍了科学研究活动。
GMRT是原子能部(DAE)下的一个项目，由国家原子能管理局建造和运营塔塔基础研究所(TIFR)和国家射电天体物理中心(NCRA)。它在100MHz至1500MHz的频率范围内工作，并在900MHz频谱附近享有特殊保护，用于进行与天文学相关的活动。
参与该设施研究的科学家告诉该出版物电信部门印度对Jio的“无限制频谱分配”恰逢GMRT的运作，这给印度以及来自30多个国家的全球科学界带来了困难。
NCRA官员还表示，Jio在该地区产生的强烈干扰已经永久性地破坏了大型数据集。由于信号干扰，他们还被迫放弃使用uGMRT进行的某些观测。
据报道，三年前的2018年，电信部门向NCRA保证，该部将得出积极的结论。然而，据称这一问题尚未解决。
观点:尝试出售和回租频谱
“为该行业提供救助的愿望是受欢迎的，但将调整后总营收(AGR)股份延迟支付20年(而不是10年)可能是不够的。政府必须更有创造性地思考”
NCRA的科学家们警告说，通信部在将频谱重新分配给电信市场领导者方面的“不作为和拖延”现在已经开始阻碍uGMRT的数据质量“无法修复”。
回想一下，在2018年，该望远镜的计算能力和数据传输速度达到了每秒40GB的重大升级，最高可达10万亿次浮点运算。现在它被称为uGMRT。
它由30个抛物面盘组成，每个抛物面盘直径45米，呈“Y”形排列。它位于浦那80公里处，远离浦那-纳西克高速公路。
GMRT的30根天线上都安装了高度敏感的专用接收器，可以捕捉极微弱的信号，但即使是轻微的干扰也会导致信号丢失。
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<\/figure>Allocation of spectrum in the restricted frequency bands (800MHz to 900MHz) to Reliance Jio<\/a> by the Department of Telecommunications<\/a> has caused \u201csevere deterioration\u201d in the data produced by the world\u2019s largest telescope, the Giant Meterwave Radio Telescope (GMRT) operating at meter wavelengths, according to an Indian Express report. The interference caused by Jio's operations in these bands is also hampering scientific research activities.
A project under the Department of Atomic Energy (DAE), the GMRT is built and operated by the Tata Institute of Fundamental Research<\/a> (TIFR) and the National Centre for Radio Astrophysics<\/a> (NCRA). It functions in the 100MHz to 1500MHz frequency range and enjoys special protection around a 900MHz spectrum for carrying out astronomy-related activities.
Scientists involved in the research at the facility told the publication that the telecom department<\/a>\u2019s \u201cunchecked spectrum allocation\u201d to Jio is coinciding with the GMRT\u2019s operations which is posing difficulties for the Indian as well as the global scientific community from more than 30 countries.
<\/div><\/div>\u201cThough Reliance<\/a> was operating in the region even earlier, significant signal interference was noticed only in 2016-2017. That was when NCRA first contacted and informed RJIL about the matter in 2017,\u201d a leading scientist from NCRA informed the publication.
NCRA officials also said the strong interference generated by Jio in the region has permanently damaged large datasets. They have also been forced to abandon certain observations using the uGMRT due to signal disturbances.
Three years ago in 2018, NCRA was reportedly assured by the telecom department that the ministry would arrive at a positive conclusion. However, the issue allegedly hasn\u2019t been resolved yet.
NCRA officials also said the strong interference generated by Jio in the region has permanently damaged large datasets. They have also been forced to abandon certain observations using the uGMRT due to signal disturbances.
Three years ago in 2018, NCRA was reportedly assured by the telecom department that the ministry would arrive at a positive conclusion. However, the issue allegedly hasn\u2019t been resolved yet.