Tactical Navigation Hardware

GridDown Hardware

GridDown hardware and sensor modules for tactical navigation, encrypted mesh communication, and SARSAT emergency beacon reception. Choose your configuration below.

📦 Ships in 2–3 weeks

GridDown Software

One-time purchase with free updates forever. Self-install on your own Android device. Includes all features — no restrictions. Delivered as a digital download link.

One-time purchase — no subscription
Free software updates forever
Perpetual license (all features)
Android compatible
Linux support coming soon
Digital delivery (download link)

$200

Secure Messenger (Hardware)

The T-Deck CYPHER M8K hardware is sold directly by Rokland via an affiliate partnership. The GridDown Secure Messenger firmware is free — flash it yourself with our web flasher. Clicking here opens Rokland's store in a new tab.

T-Deck CYPHER M8K device (via Rokland)
GridDown Secure Messenger firmware — free
LoRa mesh encrypted communication
Keyboard + display built in
Flash it at flash.blackatlas.tech

Free Firmware

GridDown Tablet

Samsung Galaxy Tab Active5 Pro (cellular) with GridDown pre-installed and offline maps pre-loaded for your area of operations. Ready to deploy out of the box — add sensor modules anytime.

Samsung Galaxy Tab Active5 Pro (cellular)
GridDown pre-installed & configured
Offline map tiles (pre-loaded)
Power supply & accessories

$799

Tablet + Secure Messenger

GridDown tablet plus T-Deck CYPHER M8K Secure Messenger. Encrypted mesh communication and tactical navigation in one bundle.

Samsung Galaxy Tab Active5 Pro (cellular)
GridDown pre-installed & configured
GridDown Secure Messenger (T-Deck CYPHER M8K)
Offline map tiles (pre-loaded)
Power supply & accessories

$949.99

Sensor Hub

Plug-and-play situational awareness module. Receives ADS-B (1090 MHz), UAT (978 MHz), and FAA Remote ID broadcasts, plus an integrated 406 MHz SARSAT beacon receiver for ELT / PLB / EPIRB distress alerts. Detection only — passive monitoring with real-time GridDown integration. Embedded Linux computer.

ADS-B (1090 MHz) aircraft detection
UAT (978 MHz) aircraft detection
FAA Remote ID drone detection
Integrated 406 MHz SARSAT beacon receiver (ELT / PLB / EPIRB)
Embedded Linux computer
Plug-and-play — connects to GridDown over WiFi
Detection only — passive receive

$1,999

The GridDown Tablet is a commercially available Samsung device pre-configured with GridDown software. BlackAtlas is not affiliated with, endorsed by, or in partnership with Samsung. All Samsung trademarks are the property of Samsung Electronics Co., Ltd. The T-Deck CYPHER M8K hardware for Secure Messenger is sold by Rokland via an affiliate link; we may earn a commission at no additional cost to you.

Order Summary

Configuration GridDown Software

Shipping Free (CONUS)

Estimated Delivery 2–3 weeks

Total $200

Secure payment via Stripe. Tax calculated at checkout.

Looking for the software only?

GridDown is free and open source under GPL-3.0. You can install it on your own hardware at no cost. Download GridDown →