Neometrix / Anti-Drone Screens / Anti-Drone Screen / NMX-ADS-41

NMX-ADS-41 · ENGINEERED-TO-ORDER CLASS — SURVEY · FOUND · ERECT · TENSION · SEAL · HANDOVER

Anti-Drone Screen. A screen does not detect the drone, decide what it is, or defeat it. It only has to be in the way, and still be standing when the wind tries to take it down.

Name: Anti-Drone Screen
Brand: Neometrix
SKU: NMX-ADS-41

A counter-drone system answers the question of whether a drone is a threat. A screen does not ask the question. It simply occupies the airspace the mesh is sized to cover, so whatever cannot fit through does not get through.

So the real engineering problem is not the drone at all. It is choosing a mesh fine enough to stop it and a structure strong enough to carry the wind that same mesh now catches, without claiming to cover a path it was never built for.

Discuss an anti-drone screen Capability note (PDF)

Fig · 01 — An anti-drone screen: a mesh panel tensioned between galvanized steel posts, anchored at the base — illustrative drawing.

The barrier

mesh or nettingaperture sized to the drone

The structure

posts, towers or cablessized to the wind, not the drone

The coverage

perimeter, overhead or pointset by what must be covered

The edges

ground, corner, accesswhere a screen actually fails

Status

engineered to orderno screen yet delivered

ISO 9001ISO 14001IS 875 (Part 3) wind load referenceIS 2721 fence fabric reference

Overview

Why a screen is proved by the wind it has to survive, not the drone it has to stop.

Because a mesh fine enough to catch a small drone is also a sail large enough to interest every gust that crosses it.

Fig · 02 — The screen in one picture: a mesh sized to the drone, a structure sized to the wind, and an edge sealed all the way to the ground.

A fine mesh proves little if the edge beside it is open.

What the screen is for

It physically occupies the airspace a drone would otherwise fly through. There is no detection, no decision and no defeat mechanism — only exclusion by presence, across the area the screen is actually built to cover.

Why mesh size is the real design variable

The aperture has to be smaller than the smallest dimension of the target drone's frame or rotor span. But every reduction in aperture raises the solid area the mesh presents to wind, and that trade runs the other way through the whole design.

Why the structure carries the real load

Once the mesh is sized, the posts, towers, cables and foundations are sized to the wind load the mesh now presents — governed in India by IS 875 (Part 3) — which decides post spacing and foundation depth far more than anything to do with the drone.

Why gaps are the real vulnerability

A drone does not need to defeat the mesh. It only needs to find an opening the mesh does not cover — at the ground, at a corner post, or above the top edge of a wall built for a different approach.

Why the configuration decides what is protected

A perimeter screen stops a low, direct approach through a boundary. An overhead screen stops a vertical approach into an open area. Neither claims to stop what the other is built for.

Why access cannot be improvised

Every gate, hatch or vehicle entry is a place the continuous mesh plane is broken on purpose. It has to be designed in as its own detail, not solved on site after the screen is up.

The install

Survey, found, erect, tension, seal, and hand over.

Six steps in a fixed order. The two that are invisible once finished are where a weaker job actually fails.

FIG · 02ANTI-DRONE SCREEN · SURVEY / FOUND / ERECT / TENSION / SEAL / HANDOVER — THE SCREEN IS PROVED AT ITS EDGE, NOT ITS FACE

The step people underrate is sealing the edge. A screen that stops everything through its face but leaves the ground, a corner or a gate open has not reduced the risk, only moved it.

Fig · 03 — Three approach paths and what stops each: low, oblique and overhead — a drawing of the idea, with no values.

1 · Survey

The boundary or area is walked, post or tower positions are set, and the wind zone is confirmed.

2 · Found

Footings are sized for the overturning load the screen's own area will present to the wind.

3 · Erect

Posts, towers or cables are raised to their design position and plumb.

4 · Tension

The mesh is fitted and tensioned to its design sag, bay by bay, across the whole run.

5 · Seal

Every ground line, corner and gate is closed, so the mesh plane has no gap the drawing did not account for.

6 · Handover

Anchors are pull-tested, every bay is inspected, and the result is logged before handover.

Work content

What the screen contains, element by element.

Read it as a checklist: a screen missing a row will buy that row back later, usually as a gap nobody measured.

Fig · 04 — A single mesh anchor point on a support post, with the tensioning hardware visible — illustrative drawing.

Element	What it does	What matters
Mesh or netting panel	occupies the airspace a drone would otherwise use	aperture sized to the target drone, not to a generic standard
Posts, towers or cables	carry the mesh and the load it presents to wind	sized to IS 875 (Part 3), not to the drone
Foundations	anchor the structure against overturning	sized for the mesh's own solidity and area, larger than an open fence
Tensioning hardware	keeps the mesh at its design sag	holds under load without concentrating stress at one fixing
Corner & termination details	close the plane where panels meet or end	the point most screens are actually beaten, not the mesh field
Ground-level seal	removes the gap between the mesh and the earth	a continuous plane is no advantage if its lowest edge is open
Access gates & hatches	let people and vehicles through on purpose	the one deliberate break, engineered, not improvised
Corrosion protection	keeps steel mesh and structure serviceable outdoors	galvanizing to a public standard, not a coating applied once
Anchor & load testing	proves the installed structure before handover	pull-tested, not assumed from the drawing
Testing & documentation	prove the installation, then the whole screen	a report for every bay, not one sign-off at the gate

The element that decides whether a screen actually excludes anything is not the mesh. It is the edge — the ground, the corner, the gate — where a continuous plane either stays continuous or quietly stops.

Fig · 05 — One screen, three coverage patterns: perimeter, overhead and point, all on the same mesh and method.

Full specification — expand

Screen	A mesh or netting membrane; posts, towers or cables built to carry the mesh and the wind load it presents; foundations sized for the resulting overturning load; tensioning hardware; corner and termination details; a ground-level seal; access gates and hatches; corrosion protection; and anchor testing and documentation before handover
The One Idea	A screen does not detect the drone, decide what it is, or defeat it. It only has to be in the way, and still be standing when the wind tries to take it down
Why Mesh Size Is The Real Design Variable	An aperture small enough to stop the target drone also presents more solid area to the wind, so the mesh cannot simply be made as fine as possible without growing the structure that carries it
Why The Structure Carries The Real Load	Once the mesh is sized, the posts, towers, cables and foundations are sized to the wind load the mesh now presents, which governs the design far more than anything to do with the drone itself
Why Gaps Are The Real Vulnerability	A drone does not need to defeat the mesh; it only needs to find an opening the mesh does not cover, at the ground, at a corner post, or above the top edge of a wall built for a different approach path
Why The Configuration Decides What Is Protected	A perimeter screen stops a low, direct approach through a boundary; an overhead screen stops a vertical approach into an open area; neither claims to stop what the other is built for
Standards	IS 875 (Part 3) is the public Indian reference for wind loads on buildings and structures, and governs the sizing of the posts, towers and foundations that carry the screen. IS 2721 is the public reference for galvanized steel chain-link fence fabric, used here as the generic reference for a woven steel mesh option. ISO 9001 and ISO 14001 certify Neometrix's own quality and environmental management. None of them sets the mesh aperture or the area to be covered for a particular site: that is set by the customer against the drone size and the site layout. Acceptance of the finished screen rests with the customer and their inspection authority
Configurations	A perimeter screen around a boundary, an overhead screen across an open area, and a point screen around a single asset
Scope Boundary	This is the mesh and the structure that physically occupy the airspace a drone would otherwise use. It is not the layered sensor and effector platform (see counter-drone (C-UAS) system), not the vehicle, mast and power that carry sensors to the threat (see anti-drone mission vehicle), and not a sensing and fire-control upgrade fitted to an existing gun (see air-defence gun upgrade & counter-UAS integration)
Status	Neometrix engineers anti-drone screens to order, and no delivered anti-drone screen is claimed.

Configurations

One method, three ways to supply the screen.

The mesh, the edge details and the record are shared. What changes is the footprint and how tall the structure has to stand.

Perimeter screen

Along a boundary

A continuous vertical mesh plane around a site's edge, stopping a low, direct approach through the boundary.

Overhead screen

Across an open area

Mesh suspended between towers over a yard or open equipment area, stopping a vertical approach a perimeter wall cannot reach.

Point screen

Around one asset

A smaller-footprint screen around a single structure, with the lowest towers and the tightest coverage.

Fig · 06 — Three ways to supply the screen, one method: a perimeter screen, an overhead screen, or a point screen around one asset.

And the part that is not equipment at all, yet decides all three: the coverage plan. It sets which approach paths must be closed, in what order the bays are built, and the rule for judging every anchor and edge, so the installation is checked the same way throughout.

Where it is used

Wherever an approach path has to be closed without electronics.

The common thread is a site that needs a path physically removed, not just watched.

New site planning

Where a screen is designed into a boundary or yard layout from the start, alongside other site infrastructure.

Retrofit to an existing boundary

Where a screen is added to a boundary or over an existing open area without disrupting what is already there.

Asset-specific protection

Where one structure needs its own screen rather than extending coverage across a whole site.

Closing an identified gap

Where a specific approach path has been identified as open, and a targeted screen closes exactly that path.

FAQ

Common questions.

Longer answers, for readers who want the reasoning.

Q · 01 Why does a mesh that cannot see or identify anything count as counter-drone protection?

Because protection does not always require a decision. A detection system has to see a drone, work out what it is, and decide whether to act, all before it can stop anything, and every one of those steps can be wrong or late. A screen skips all three: it is simply in the space the drone needs to pass through, so whatever cannot fit through the aperture does not get through, regardless of what it is, who is flying it, or whether anyone noticed it coming. This exclusion-by-presence principle is the same one already used at airports, stadiums and industrial sites for bird, debris and small-drone netting: a barrier that does not need to be right about anything, only to be there.

Q · 02 What decides the mesh aperture, and why can't it just be made as fine as possible?

The aperture is set by the smallest dimension of the target drone, usually its rotor span or frame width, since the mesh only has to be smaller than the thing it is meant to stop. Making it finer than that buys nothing against the drone and costs a great deal against the wind: a finer mesh presents more solid area to the air moving across it, and that solid area is what the posts, towers and foundations actually have to resist. Industry practice in netting design treats this explicitly as a trade-off rather than a one-size-fits-all answer, because a mesh sized for the smallest conceivable target on every site would make the supporting structure needlessly large everywhere else.

Q · 03 Why does the support structure matter as much as the mesh itself?

Because the mesh does not stand on its own. Once an aperture is chosen, the posts, towers or cables that carry it must be sized against the wind load that area of mesh now presents, which in India is governed by IS 875 (Part 3), the public standard for wind loads on buildings and structures. The foundation then has to resist the overturning moment that load creates, which is a larger and less visible job than the mesh panel itself. A screen that looks right in a brochure photograph but was never checked against this loading is a screen waiting for the first real storm to find its weakest footing.

Q · 04 What is the honest difference between this and the counter-drone system, the mission vehicle, and the gun upgrade pages?

This is the only page in the family that detects nothing, decides nothing and defeats nothing. The counter-drone (C-UAS) system page is a layered sensor, command-and-control and effector platform built to see a drone, classify it and stop it. The anti-drone mission vehicle page is the vehicle, mast and power that carry sensors and a payload to the threat, so the system can move and still function. The air-defence gun upgrade & counter-UAS integration page fits sensing and fire control to a gun a customer already owns. All three are active systems with an electronic or kinetic function. This page is a mesh and a structure: it occupies space, and nothing on it senses, decides or fires.

Q · 05 What can't a screen do?

It only protects the approach paths and the area it is physically built to cover. A perimeter screen around a boundary does not stop a vertical approach into an open yard inside that boundary; an overhead screen across one yard does not protect the rest of a site. It identifies nothing: a screen cannot tell a hostile drone from a harmless one, because it does not look at either. And it works best as one layer, not the whole answer: a site that also needs to know what is approaching, and to act on threats a screen cannot physically cover, is better served by pairing it with a detection and decision layer such as the counter-drone (C-UAS) system, rather than treating the screen as a complete solution on its own.

Q · 06 Has Neometrix built one of these?

We would rather answer this plainly than let a page imply otherwise. Neometrix engineers anti-drone screens to order, and no delivered anti-drone screen is claimed. What stands behind the offer is adjacent: Neometrix's crash-rated bollards and vehicle barriers page, in the same perimeter-protection class, is evidence of the same discipline applied here — a passive physical barrier where the foundation, not the visible element, decides whether an installation holds under the load it is built for. The mesh, the posts or towers, and the foundations are proven materials and methods, not invented ones. What Neometrix engineers for this class is the layout, the structural sizing against wind, the foundation design, the edge and access details, and the testing and documentation before handover. So the honest position is that the screen is engineered to order, the neighbouring structural discipline is in the building, and the first screen of this exact kind will be sized around the customer's own site and threat rather than lifted off a shelf.

Q · 07 Which standards apply, and who sets the aperture and the area to be covered?

IS 875 (Part 3) is the public Indian reference for wind loads on buildings and structures, and governs the sizing of the posts, towers and foundations that carry the screen. IS 2721 is the public reference for galvanized steel chain-link fence fabric, used here as the generic reference for a woven steel mesh option where weight is not the deciding factor. ISO 9001 and ISO 14001 certify Neometrix's own quality and environmental management systems. None of them sets the mesh aperture or the area a particular site's screen must cover: that is set by the customer against the drone size they are defending against and their own site layout, and this page prints none of it. Acceptance of the finished screen, including its anchor and tension tests before handover, rests with the customer and whatever authority they name.

Q · 08 What do you need from us to quote?

Five things, and most of them describe the site rather than the screen. First, the layout: a plan of the boundary or the area to be covered. Second, the target: the smallest dimension of the drone the aperture must stop. Third, the wind zone: the location, for the IS 875 (Part 3) load case. Fourth, the configuration: a perimeter screen, an overhead screen, or a point screen. Fifth, the constraints: existing structures available to anchor to, and where access gates or hatches are actually needed. From that we come back with a layout drawing, a written edge-and-access detail you can check, and a budgetary price.

The neighbouring counter-UAS pages, and how they differ from this one.

Three neighbours in the same counter-drone family — all active, where this page is passive.

↗ Sensors + effector

Counter-Drone (C-UAS) System

The layered detect-decide-defeat platform — senses, decides and defeats; this page is not a sensor or an effector.

↗ The carrier

Anti-Drone Mission Vehicle

The vehicle, mast and power that carry sensors and a payload to the threat; this page does not move and carries nothing electronic.

↗ The upgrade kit

Air-Defence Gun Upgrade & Counter-UAS Integration

A sensing and fire-control upgrade fitted to an existing gun; this page detects nothing and engages nothing.

Browse all Neometrix product lines.

Get a quotation

Tell us the layout, the target size,
and the wind zone.

The projects desk replies within two working days with a layout drawing, a written edge-and-access detail you can check, and a budgetary quotation. Write to [email protected] or use the form.

Enquire — anti-drone screen Capability sheet (PDF) +91 7777 876 876

ISO 9001 / 14001 ENGINEERED-TO-ORDER CLASS — ANTI-DRONE SCREEN SURVEY · FOUND · ERECT · TENSION · SEAL · HANDOVER — THE SCREEN IS PROVED AT ITS EDGE, NOT ITS FACE ENGINEERED IN NOIDA · INDIA