DRDO and PSU's

SKC said:
What has happened to these Govt PSU?? Why suddenly posting these worth less updates??

Making a mockery of themselves and us Indian on Twitter!!​
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not just govt PSUs, all central govt offices have been doing it since swach Bharat abhiyan started. in govt system, photo ops are considered documentary evidence that something has happened. it so happens that this forum watches only defence related events, so the campaign looks out of place. even MEA offices have been carrying out this campaign every year.

in 2024, it reached a stage where most of the photos are about sweeping, earlier it used to be about mountains of files.

government.economictimes.indiatimes.com

Transforming govt workplaces: Impact of special campaigns in achieving the Swachch Bharat vision - ET Government

QCI's Special Campaign Project Management Unit: The rapid review and disposal of old files were facilitated by the government's commitment to Digital India and the transition to a Digital Secretariat. A pivotal driver of progress has been the widespread implementation of e-Office, bringing...
government.economictimes.indiatimes.com government.economictimes.indiatimes.com
 
Anants said:
Enjaay Faalks .. @ezsasa @Azaad @shade2 @Vishnugupt and @mist_consecutive ;)


View: https://www.youtube.com/watch?v=CO7dr7HWbfg
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yes, when we were discussing BOSS and open source softwares at the old forum, after the initial euphoria faded(including mine), the conclusion was that financials and usage metrics do not allow for constant upgrades and trouble shooting that a COTS OS/software can provide in daily usage.

may be this question can be relooked 5-10 years later, when financials allow for it.
 
ezsasa said:
yes, when we were discussing BOSS and open source softwares at the old forum, after the initial euphoria faded(including mine), the conclusion was that financials and usage metrics do not allow for constant upgrades and trouble shooting that a COTS OS/software can provide in daily usage.

may be this question can be relooked 5-10 years later, when financials allow for it.
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yep

but look at Lt Col Rajan . He could not believe that they fooled even the Lt Gen Hooda. It seems a good podcast.

​

 
fire starter said:
It is under NTRO.


View: https://x.com/alpha_defense/status/1844273988215947745?t=6q4qbdr4nqJcERsrdJxfcw&s=19
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Can a OTH radar be jammed electronically.
The emitting radar station could be as far as 1500 kms away.
I guess an OTH radar requires a lot of space and is much bigger than normal radar stations.
It would not be a mobile station??.
It would be nice if someone can add a few pics of OTH radars of other countries.

If it's location can be triangulated than a medium range ballistic missile with the appropriate sensors can theoretically be launched to destroy it.
Or is the task not that simple.

As far as the China front is concerned will the Himalayas interfere with it's functioning.
 
Tridev123 said:
Can a OTH radar be jammed electronically.
The emitting radar station could be as far as 1500 kms away.
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From that long range ? with what ? power of the sun ? portable nuclear reactor in low earth orbit ? The power required to jam a radar like that even from 50km away will take a convoy of power cars. Best you can do is deceive the radar somewhat with false positives and decoy signals.
 
Corvus Splendens said:
From that long range ? with what ? power of the sun ? portable nuclear reactor in low earth orbit ? The power required to jam a radar like that even from 50km away will take a convoy of power cars. Best you can do is deceive the radar somewhat with false positives and decoy signals.
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Calm down.
The sentence started with a 'can'
Basically inviting suggestions which are technically feasible.

No need to go hyper.
An low orbit satellite with sufficient high power jammers can be manuvoured using onnoard thrusters to be positioned almost directly above the radar station and the electronic jamming can be attempted.

These are only possibilities.

Or is an OTH radar totally immune to jamming?.
 
Tridev123 said:
Calm down.
The sentence started with a 'can'
Basically inviting suggestions which are technically feasible.

No need to go hyper.
An low orbit satellite with sufficient high power jammers can be manuvoured using onnoard thrusters to be positioned almost directly above the radar station and the electronic jamming can be attempted.

These are only possibilities.

Or is an OTH radar totally immune to jamming?.
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You simply need ridiculous amount of power in your jammer to overpower a big OTH radar. Further away your jammer is, even more power you need. Even a military sat with a plutonium battery isn't powerful enough to jam a radar this size. You can attempt, but the ground radar is emitting so much power, it'll "brute force" it's way through the long range jamming. You can fool any radar with decoys however.
 
Corvus Splendens said:
You simply need ridiculous amount of power in your jammer to overpower a big OTH radar. Further away your jammer is, even more power you need. Even a military sat with a plutonium battery isn't powerful enough to jam a radar this size. You can attempt, but the ground radar is emitting so much power, it'll "brute force" it's way through the long range jamming. You can fool any radar with decoys however.
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Can you support your arguments with international technical citations.
The OTH radar concept and its development was first attempted by the United States.
The technology has matured to quite an extent.
It is more than 2 decades old.Correct me if I have erred.
I am sure that they would have research papers on this technology.

Your arguments backed by solid physics calculations would be more credible.

For the benefit of other members
What is the average power output of OTH radars.
How much energy does it emit.
Please quote actual numbers.

I am asking you because you seem to be an expert on radar technology.
 
Tridev123 said:
Or is an OTH radar totally immune to jamming?.
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> Yes, as they're always fixed in place it's very easy to target them using even simple loitering munition, let alone ballistic missiles. But it's well defended.
Just like all other fixed military assets like AFBs.

> They can need up to 10MW of powers so theoretically they can be made mobile but it would be extremely unfeasible

> Just like it need extreme power to reach ionosphere, then reflect back all while having enough power to compensate for attenuation...your jammer would also need to deal with all these. So jamming becomes bit tough

> But there are ways in which they can be somewhat countered. A good number of high altitude balloons coated in radar reflective material would work the same way aircrafts use chaff to deceive radar guided missiles.

> Another bit complicated way is to "tamper" with the ionosphere.
IMG_20241010_160413.jpg
In theory you can shoot a high powered RF or microwave beam (the dashed line) to the approximate point where it's getting reflected and change the charge of the ionosphere. This would cause the OTH's beams to reflect erratically.
 
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You have done some research and quoted numbers.I assume that your figures are authentic.

I wanted to initiate an discussion on this technology. Appreciate your contribution.

OTH radars have obscene detection ranges, sometimes even working at 2000kms.

But I believe that they cannot provide accurate targeting solutions. Pinpoint the location of flying objects.

Your suggestions to neutralize OTH radars are welcome.
I would like to add one more suggestion.
Will a detonation of a very low yield neutron bomb in the ionosphere covering the area of interest put the OTH radar out of operation for a short time.
A very low yield neutron bomb mainly releases high energy charged particles which will interact with the ionosphere and temporarily disperse it.

This is only a possible method to disrupt the functioning of an OTH which depends on the ionosphere for it's successful operation.

There is a danger of radiation but during war certain extreme measures are condoned.
 
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