Electronic Defense, Reinvented

Disruptive EW solutions built for resilience, precision, and survivability.

GRALE (powered by SEPA)

Grale is a compact, high-performance antenna system designed to protect drones and autonomous systems from jamming and GPS denial. Lightweight, power-efficient, and platform-agnostic, Grale enables mission-critical performance in the world’s most contested electronic environments.

3D model based on “FPV-dron_NonStop” by Viktor_, used under CC BY. Modified by Archaius Inc.

Comparison Table

Grale

CRPA/FRPA

Controlled Reception Pattern Antennas

Fiber Optic

Including Fibre Optics

Protection Type

Mobility & Flexibility

Size & Weight

Power Consumption

Cost

Deployment Platforms

Scalability

Closet Approach

Detects, mitigates, and localized interfernece

High (compact, light, deployable on small platforms)

Compact and lightweight

Low

Drones, small vehicles, handheld, larger platforms

Mass producible

0 m

Reduces directional jamming

Moderate (requires large platforms)

Large and heavy

High

GPS only

Limited to largescale military platforms

220 m

Immune to RF Jamming but limited to physical tether range

Very low (fixed, non-mobile)

Bulky

Low per unit

Fixed facilities, connected vehicles (limited)

Limited to intelligence, surveilance, and ISR

0 m

GRALE in the Field: Operational Use Cases

Scenario 1: ISR Mission – Eastern Europe

Context:

NATO recon teams operate in a contested RF environment near the front lines in Ukraine.

Challenge:

Standard drones lose uplink to Russian jammers like the R-330Zh.

Grale Outcome:

- Detects jammer and cancels >50 dB
- Maintains GPS and command links
- Triangulates jammer → guides NATO HIMARS strike
- Drone completes ISR and returns safely

Result:

✓ Jammer neutralized 
✓ ISR stream maintained 
✓ Drone recovered

Scenario 2: Contested Resupply – Sahel Region

Context:

A Special Forces team in Mali needs an emergency drone resupply through jammed territory.

Challenge:

Challenge:  Standard UAS lost mid-flight due to GPS jamming.

Grale Outcome:

- Grale detects threat vector in real time
- Reroutes drone to avoid jamming zone
- Maintains comms and navigation
- Supplies delivered successfully

Result:

✓ Mission success 
✓ No signal loss 
✓ Jammer location recorded for future targeting

Scenario 3: Precision Strike – South China Sea

Context:

Navy carrier group detects multi-band jamming from a hostile island outpost.

Challenge:

Traditional munitions can’t maintain lock under jamming.

Grale Outcome:

- Identifies jammer frequency and location in real time
- Updates targeting mid-flight
- Munition strikes jammer with accuracy
- Restores ISR corridor

Result:

✓ Target eliminated 
✓ PNT restored 
✓ SEPA munition validated