DRDO and PSU news and discussion

Karthi

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DRDO trawl.jpg
DRDO trawl2.jpg





DRDO Trawl , it consists of a trawl
roller, a track width mine plough and
an electro-magnetic device (EMD).


The system successfully completed
blast trials in collaboration with
High Energy Materials Research
Laboratory (HEMRL), Pune in 2017. The trials demonstrated the survivability of the
equipment when subjected to successive
series of blast directly underneath it.
 

porky_kicker

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Interesting , compare it to the one I posted more than a year ago


Now for the star of the show here

This is a experimental test set up of S band magnetically insulated line oscillator (MILO) .

View attachment 31845

It is the first of its kind to be developed in India.

The MILO is a cross field device that generates gigawatts level of HPM. The device is compact because it generates the magnetic field by itself.

In the experimental lab setup with the compact S band MILO with 2 choke, 3 SWS cavities and one coupling cavity , RF output power of 4 MW at a frequency of 3.26GHz for the beam voltage of 485 KV and the current of 48.4 KA was obtained.

Now DRDO needs to work on the developmental cycle and scale it up to the desired performance and output levels step by step over a period of time. It will be a long journey though.

Anyways the significance of MILO lies in its ability to deliver highest energy per mass per pulse compared to other HPM source devices/technologies.

And importantly MILO allows for smallest possible dimensions for a HPM system along with the relevant support systems , light and compact enough to make it mobile ie truck / trailer / track mounted for battlefield operations.

According to unclassified reports the Americans tested mobile MILO devices with RF energy levels well over 1KJ per pulse ( 2-3 GW for .5-1us ).

Well let's hope India gets there and exceeds that manifolds.......

Happy Saraswati puja !
India setup

Untitled13.jpg
 
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porky_kicker

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From the first look one thing is clear the work culture , clean environment , and the clean test facilities of South Korea☺
Why did you post a South Korean system ? :confused1:
I thought it was an Indian system with korean antenna :doh:
You did a big time KLPD on me :sad:
 
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WolfPack86

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New policy to constraint defence planning
To be self-reliant, the government’s announcement on May 16 virtually banning defence imports — a boost for Make in India — and allowing 74 per cent FDI in JV through the automatic route, are near revolutionary steps, but requiring the defence procurement procedure (DPP) to be revised for the nth time. These radical policy changes will not be easy to implement and will undermine defence capabilities in the short and medium term.

Therefore, CDS General Bipin Rawat’s extraordinary statement earlier this month, charging the armed forces with “misrepresenting their operational requirements to indulge in large weapon import” was embarrassing for the armed fraternity, though pointedly in sync with the government which has been advocating Make in India, a grandiose project for indigenising weapons production that is bereft of any home-grown technology and adequate production base.

General Rawat said the armed forces should accept weapons from the domestic industry even if they meet just 70 per cent of the desired technology. The admission includes curtailing operational missions and objectives: “We are not expeditionary forces that have to deploy around the globe. We have to guard and fight only along our borders and, of course, dominate the Indian Ocean.” He added: “Covid-19 has affected everybody. We need to be realistic, start adjusting and have a major relook at our operational priorities and what we actually need.” This was a painful overview of the existing defence planning, weapon acquisition and their prioritisation procedures for which he too, as former Army Chief, is accountable.

It is understood that veterans and serving officers were perturbed with General Rawat’s accusation that the services have been exaggerating

military threats and that they should fight with weapons with less than the stipulated General Staff Qualitative Requirement.

General Rawat’s self-flagellation was also prompted by a defence official disclosing that the defence budget was likely to be slashed between 20 and 40 per cent. As salaries and pensions cannot be cut, defence modernisation will take the hit. This will put a freeze on any new deals and even funds earmarked for paying instalments in the existing contracts could be deferred.

Stockholm International Peace Research Institute (SIPRI) could also be partly to blame for the ‘noise’ as it has been rating India for the last five years as the world’s second biggest arms importer after Saudi Arabia, accounting for 9.2 per cent of total global arms imports. Even so, India spends on an average on defence, just 1.6% of GDP, minus pensions and salaries, which is one of the lowest among the developing countries, given its two unsettled borders and attendant challenges.

What General Rawat said amounts to a critique of how the country arrives at its defence and security threats, challenges and opportunities. No overarching review coupling defence, diplomacy, technology and economics in the shape of a comprehensive strategic defence and security review has ever been carried out. Nor has any white paper been produced. The Defence Minister’s operational directive which is originally drafted by the tri-services gets updated and issued after every five to ten years.

The last time one was refined was during the late Defence Minister Manohar Parrikar’s term, but one is not sure whether he finally signed the directive.

The strategic sweep of each service of the armed forces is varied. For the Navy, it is from the east coast of Africa to the Malacca Straits. For the IAF, airspace over territorial India and the Indian Ocean region; and for the continental Army, it is land borders with China, Pakistan, Myanmar and Bangladesh, along with out-of-area contingency plans for the Maldives, Sri Lanka and Nepal. The Indian Army has a manpower ceiling of one million. For the Navy, the ceiling is 60,000 and a target of 200 warships by 2027. The IAF has sought 42 combat squadrons, a figure born in the 1960s, not revised since and never achieved.

General Rawat’s impromptu strategic guidance on the diminished role for the armed forces has factored the impact of the pandemic on public spending. India’s ambitious plans to fight a two-and-half front war will need to be re-evaluated and its self-assigned role as a net regional security provider will also need a re-examination. The Indian Navy’s proposed role in the Indo-Pacific and any militarisation of the Quad will need to be shelved, with focus on the domination of the Indian Ocean region.

Further, General Rawat’s remarks, budgetary cuts and import ban will disrupt the 15-year long term integrated perspective plan and require a drastic resetting. The ground reality is this — the LoC has hotted up and infiltration in Kashmir is on the rise. Insurgency will increase exponentially as passes open. Similarly, the LAC has been activated in Ladakh and Sikkim and tension is escalating. Sikkim has a settled border and China accepted it as part of India in 2005. Although the Army Chief, General MM Naravane, has downplayed the two face-offs and rejected any linkage between them, the armed forces must be prepared for a pincer movement by all-weather friends Pakistan and China as well as another Doklam.

Hard power is needed to assert national interest by use of force. Evidently, in view of General Rawat’s pronouncements and the government’s new defence acquisition policy, full spectrum of capabilities and defence modernisation will be constrained by affordability of programmes in a post-Covid normal.

Instead of considering and announcing piecemeal reforms, like extension of colour service for soldiers, national voluntary service, integrated battle groups and so on, an integrated defence and security review is urgently required on achieving specific joint and individual force capabilities — something that the Defence Planning Staff, of which I was a member, modestly attempted in the mid-80s.

General Rawat’s challenge in a post-pandemic environment is daunting, but as the first CDS, he enjoys confidence of the government and knows his stuff.
 

Karthi

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X band survilence radar.jpg



Data Patterns X-Band Surveillance Radar (also referred as PSR (Primary Surveillance Radar)) used for detection of coastal targets ranging from 1m to 1000m .

It primarily consists of a transmitter subsystem, receiver subsystem, antenna subsystem, a control system and data processing subsystem. The Radar consists of a touch screen display and hard switches for user interface.

The antenna receives high power RF signal from the transmitter subsystem of
the PSR. The received signal from the antenna is provided to the LNA (Low Noise Amplifier) module which provides the amplified signal to the receiver chain for dual stage down-conversion.The down-converted signal is provided to the data processing subsystem, where the signal is digitized and processed to get the required output at the display.
 

porky_kicker

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Not sure about this, what purpose does it server?
Explained it in many times already

DRDO version , reposting

Now for the star of the show here

This is a experimental test set up of S band magnetically insulated line oscillator (MILO) .

View attachment 31845

It is the first of its kind to be developed in India.

The MILO is a cross field device that generates gigawatts level of HPM. The device is compact because it generates the magnetic field by itself.

In the experimental lab setup with the compact S band MILO with 2 choke, 3 SWS cavities and one coupling cavity , RF output power of 4 MW at a frequency of 3.26GHz for the beam voltage of 485 KV and the current of 48.4 KA was obtained.

Now DRDO needs to work on the developmental cycle and scale it up to the desired performance and output levels step by step over a period of time. It will be a long journey though.

Anyways the significance of MILO lies in its ability to deliver highest energy per mass per pulse compared to other HPM source devices/technologies.

And importantly MILO allows for smallest possible dimensions for a HPM system along with the relevant support systems , light and compact enough to make it mobile ie truck / trailer / track mounted for battlefield operations.

According to unclassified reports the Americans tested mobile MILO devices with RF energy levels well over 1KJ per pulse ( 2-3 GW for .5-1us ).

Well let's hope India gets there and exceeds that manifolds.......

Happy Saraswati puja !
HPM = high power microwave
 

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