A drone datalink that’s invisible before it’s ever jammed.

Most anti-jam radios survive interference by hopping to a clear channel. The signal is still there to be found—it just moves. Umbrella Link is being built on a different idea: keep the transmit energy below the noise floor, so there’s nothing for a jammer or a passive intercept receiver to lock onto in the first place.

Hop radios stay findable. This one aims to stay below the noise floor.

What it is

Umbrella Link is a covert (low-probability-of-detection) RF datalink for drone telemetry and video. It’s in active development in our RF lab in Indore. We’re running the physical validation program now—real hardware, real spectrum-analyzer measurements, not simulation—and opening early access to a small number of Indian drone manufacturers before the first production units ship.

If you’re an OEM integrating C2 or telemetry onto an airframe, the question we care about is simple: can a handheld analyzer or a passive intercept receiver see you? Hop-and-survive radios don’t answer that. Umbrella Link is aimed at that detection threat model.

We do not claim the signal is “undetectable” against every advanced feature or cyclostationary detector. The design goal is sharper: invisible to standard spectrum analysis and passive intercept.

Target specs (TBD — pending bench)

These are design targets, not datasheet numbers. Nothing here is independently verified yet. We’ll publish measured figures after bench work closes—not before.

Detection resistance — hold the signal below the measured noise floor at a TBD SNR margin (pending bench)
Jamming margin — TBD dB above ambient (pending bench)
Payload — telemetry first; video in a later development phase
Band — India license-exempt intent (2.4 / 5.8 GHz); exact EIRP and bandwidth caps get locked against WPC SRRF rules before we make link-budget claims to a buyer

If a number isn’t measured in the lab, we don’t invent it for the page. No fake processing gain, no unverified kilometer claims, no STANAG/ITAR theater.

Why now

Anti-jam hop radios are already on the market (Doodle Labs and others). What’s missing in the Indian drone market is a link built around staying undetected, not just surviving once you’re found. Defense, security, and BVLOS programs keep asking whether a visible C2 carrier is an operational failure. For a lot of those programs, it is.

Resistant to jamming isn’t the same as invisible to detection. We’re building for the detection threat model. If that gap matters to what you’re building, we’d rather talk before this is finished than after.

Who this early access is for

Indian drone OEMs and integrators who already know hop radios, and who still need a quieter C2/telemetry path. Bring your airframe class, band preference, and whether video is mandatory or C2-only is enough. We’ll say no when the fit is wrong—early access is a conversation, not a shelf SKU.

Request the technical brief

Send: name, company, platform, email
You get: a real conversation and, when ready, an invitation to the first physical demo in the lab—not a product in a box today.

Request the technical brief