Stage I · in development

Falkonis Nest

An early-warning node shaped like a nest box. It listens for the radio signals a drone cannot help emitting, and says nothing about itself while doing so.

0W radiated

The sensing path receives only. Nothing on the air to locate.

≈ 0km design range

Prototype target against a common commercial drone.

0days unattended

Battery and solar, through a Baltic winter.

In the field

What happens when something comes

How a Falkonis Nest node detects an approaching droneA sensor node mounted on a tree sits at the centre of a detection envelope roughly one kilometre across. An approaching drone emits control and video radio signals, the node receives them without transmitting anything itself, and sends an alert over the cellular network to a phone or command platform.≈ 1 kmLTE1234

Scroll the diagram sideways →

A drone approaching a watched line. The node receives, decides, and sends — in that order, and only the last step puts anything on the air.
1 The node
Mounted three to six metres up a tree, pole or wall. Solar panel on the roof, everything else inside.
2 Detection envelope
A dome of radio coverage around the node. The first prototype is designed against roughly one kilometre.
3 The drone gives itself away
Its control link and video downlink are continuous transmissions. That is what the node is listening for.
4 Alert in seconds
A short cellular message to a phone or a command platform. No video, no stream, no bandwidth bill.

The enclosure

Why a nest box

The shape is not decoration. A sensor worth protecting is also worth finding, and a box on a tree that looks like equipment invites exactly that. A nest box does not.

It also solves practical problems at the same time: the pitched roof carries the solar panel at a useful angle and sheds water, the volume is enough for a battery sized for months rather than days, and mounting it is a job one person does with a strap and a ladder.

Inside

Five things, none of them exotic

The engineering is in the power budget and in the signal processing, not in the parts list.

What is inside a Falkonis Nest nodeA cutaway of the nest-box enclosure showing, from top to bottom: a solar panel on the roof, the receiving antenna and radio front end, the signal processing board, the cellular modem, and the battery that carries the node between charges.Solar panelTops the battery up in daylightAntenna and radio front endReceives only — nothing is transmitted hereSignal processingSeparates a control link from ordinary noiseCellular modemSends a short alert, nothing moreBatteryCarries the node through winter and cloudWeatherproof enclosure — nest-box form

Scroll the diagram sideways →

Placeholder layout — the internal arrangement will change as the first prototype is built.

Design targets

What the first build is aimed at

Nest is pre-prototype. Everything below is what it is being designed against, not what has been measured on a range.

Detection methodPassive RF — the sensing path receives only and never transmits
Design target range≈ 1 km against a common commercial drone
Alert latencySeconds from detection to phone, cellular coverage permitting
Alert channelLTE; a short message to a phone or a command platform
PowerBattery with solar top-up
Autonomy target90+ days unattended, including a Baltic winter
MountingTree, pole or building facade — no mains power, no groundworks
EnclosureWeatherproof, shaped as a nest box
ExpansionAcoustic and further sensor modules planned on the same node
ComponentsNon-Chinese, European sourcing preferred

Roadmap

Where it goes from here

Stage I

RF detection

A single node that reliably separates a drone control link from background noise and raises an alert. This is what the first prototype has to prove.

Stage II

Acoustic module

A second sensor for drones flying without an active radio link, cross-checked against the RF channel to keep false alarms down.

Stage III

Networked nodes

Several nodes reporting into one picture, so a line of sensors gives direction and a rough track instead of a single point.

Later

Command integration

Feeding alerts into the platforms operators already use, rather than asking them to watch another screen.

Tell us what Nest has to survive

Range, winter, mounting height, how the alert should reach you — operator requirements are what decide the first build. If you have a perimeter to watch, we want to hear about it.