DoT is presenting examining application from Amazon Kuiper Services India Private Limited (presently Amazon LEO) while rejected application from Tata-backed Nelco Limited and Hiranandani Group-backed Yotta Network Services Private Limited whereas Connect4sure Technologies Private Limited has withdrawn its application.
RDB's Blog
Slate of random rubbishes!
Saturday, January 31, 2026
Jio, OneWeb & Starlink Granted Unified License for GMPCS
In the latest development of India's satcom market, country's Department of Telecom (DoT) has issued Unified License (UL) with authorisation for GMPCS (Global Mobile Personal Communication by Satellite) service for national service area to 3 companies: OneWeb India Communications Private Limited, JIO Satellite Communications Limited, and Starlink Satellite Communications Private Limited, as informed by Minister of State for Communications and Rural Development, Dr Pemmasani Chandra Sekhar in Rajya Sabha on 29th January, 2026.
চুঁচুড়ার ঘণ্টাঘাট এবং ঘণ্টা গির্জার গল্প
আগেই বলেছি যে কলকাতা থেকে 25-50 কিলোমিটার দূরত্বে হুগলী নদীর ধার ঘেঁষে গড়ে উঠেছিল একাধিক ইউরোপীয় বাণিজ্যকেন্দ্র তথা উপনিবেশ - বারাকপুরে ব্রিটিশরা, উল্টোদিকে শ্রীরামপুরে ড্যানিশরা, তার উত্তরে চন্দননগরে ফরাসীরা, চুঁচুড়াতে ডাচ বা ওলন্দাজরা, এবং ব্যাণ্ডেলে পর্তুগীজরা।
আজকের গল্প চুঁচুড়া ফেরিঘাটের একটু উত্তরে ঘণ্টাঘাট নিয়ে। এই ঘাটে কি ঘণ্টা ছিল? কোথায় গেল সেই ঘণ্টা?
Thursday, December 25, 2025
ISRO's 100th Orbital Launch Marks Highest Payload Lift with AST SpaceMobile's BlueBird 6
Vodafone UK's satellite partner AST SpaceMobile has sent their BlueBird Block-2 communication satellite into its intended Low Earth Orbit with Indian Space Research Organisation (ISRO)'s LVM3-M6 rocket on 24th December 2025. BlueBird Block-2 satellites, including BlueBird 6, feature a massive 2,400 square foot (223 m²) communication array, weighing in at 6,100 kilograms, was the heaviest payload that the LVM3 has ever launched into LEO.
While ISRO firmly maintains its stand of global satellite launch market with 6th mission of LVM3, it also marks the completion of 100 orbital launches. The LVM3 launch vehicle (Launch Vehicle Mark-3, formerly GSLV MkIII), developed by ISRO, is a three-stage rocket comprising two solid strap-on motors (S200), a liquid core stage (L110) and a cryogenic upper stage (C25). With a lift-off mass of 640 tonnes and a height of 43.5 metres, the vehicle is capable of carrying up to 4,200 kg to Geosynchronous Transfer Orbit.
Sunday, November 30, 2025
Why BSNL 4G Has So Much Issues?
From my last post on BSNL's official entry into 4G space, I am continuing here. Making it a brief, BSNL 4G is giving download speed of 20-30Mbps on 10/5MHz x 700/2100MHz band using LTE-FDD in 2025 while Airtel's initial 4G offering on 20MHz x 2300MHz on LTE-TDD was upto 40Mbps downlink.
So BSNL's using lower bands with less bandwidth those should offer lower downlink speed, that's what I am getting. But BSNL 4G is having coverage issues, why?
Friday, October 31, 2025
Vi 5G Review: Speedtest Results in Kolkata
Vi, the third largest mobile operator of India, has launched 5G, and it is now in Kolkata too, but in a few pockets of the metro. Though it's not present at my home area, it is widely available in Salt Lake.
To deploy 5G, Vi took a multi-vendor strategy - made deals with Samsung, Nokia and Ericsson for different circles. In Kolkata Nokia is the vendor of Vi 5G.
Friday, October 03, 2025
BSNL 4G Officially Launched on 27th September 2025 - Discussions
BSNL, the state owned telecom service provider has officially launched its 4G-LTE services in India in an event at Jadsuguda, Orissa as India's prime minister Narendra Modi unveiled Swadeshi 4G network of BSNL on September 27, 2025. In fact, BSNL completed its 25 years of milestone of September 26, 2025.
BSNL has deployed indigenous 4G stack, made by Tata backed Tejas Networks & TCS and C-DoT. Multiple Indian startups are also part of it. It is aligned with the government's strategy of Atmanirvar Bharat (Self reliant India).
Monday, September 22, 2025
Jio Deploys 5G-NR Country-wide, Details of UBR based Jio AirFiber
From the very beginning of deployment of cellular technology, India had behaved like any 3rd world country - late deployment, poor services and poor adaption. However since 2015 the perception gradually has been changed, all thanks to Mukesh Ambani backed Reliance Industries' telecom arm - Jio.
Now Jio has launched 5G-SA and brought 5G-FWA (fixed wireless access) to connect homes with wireless broadband. Initially Airtel with their 5G-NSA could not enter into 5G-FWA market as 5G core is very much essential for roll out 5G-FWA, but they now entered into 5G-FWA market with their limited 5G-SA deployment.
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