Conduit · Onboard hardware

The conduit between your vehicle and SkyRelay.

Mount it on the vehicle. Conduit selects the strongest available LTE network and connects the aircraft to SkyRelay—no line of sight and no manufacturer cloud required.

LTE CAT-1 CONNECTED GNSS ±2.5 M CEP RECORD OFF-AIRCRAFT POWER INDEPENDENT
Reasons 01–06

Reasons this earns its place on the airframe.

Each stands on its own. None depends on trusting the aircraft’s own systems to tell the truth about themselves.

01 Cellular connection

Carrier-agnostic connectivity, with automatic failover.

Conduit evaluates signal across AT&T, T-Mobile, Verizon, and 550+ partner networks through Hologram, then moves to the strongest available carrier automatically. A dead zone on one network is not a dead zone for the aircraft.

Network selection · automatic● Connected
Available networks · state A
AT&TAvailable
T-MobileSelected
VerizonAvailable
Signal changes
Available networks · state B
AT&TAvailable
T-MobileDegraded
VerizonSelected
ConduitConnection maintainedSkyRelay
02 Independent record

Independent, tamper-evident flight records.

Logs stream off the aircraft over LTE as the flight happens and land in storage the operator controls—not the flight controller’s SD card and not the manufacturer’s cloud.

01 · Onboard hardwareConnected
SkyRelay mobile monitor showing an active recording and Conduit connected with position, battery, signal, and health OK
02 · Vehicle stateReceived
SkyRelay mobile monitor showing UAV position, UART flight-controller link, mode, 3D fix, and satellite count
03 · Off-aircraft recordLive + complete
SkyRelay mobile records showing one active recording and completed records with duration, point count, size, and export actions
StorageOff-aircraft
OwnershipOperator-controlled
ExportGPX · KML · JSONL
03 Link continuity

Alternate command link—positioned in PACE, not in place of it.

PACE is a four-step communications fallback plan: Primary, Alternate, Contingency, Emergency. Each tier is decided before the flight, so the crew already knows what comes next when a link fails.

PACE · Four pre-decided fallback layers
P
PrimaryEveryday link
Your normal RF datalink or manufacturer controller.
Yours
A
AlternateFull backup
MAVLink command and telemetry over LTE on a different carrier.
Conduit Link
C
ContingencyDegraded mode
A workable reduced-capability link, typically SATCOM.
Yours
E
EmergencyLocate & account
Independent GPS, recovery buzzer, and flight record.
Conduit Track + Link
Primary · degradedAlternate · activeConnection continues
04 Physical recovery

Physical recovery, on its own battery and GPS.

Last-known GNSS position and an 85 dB recovery buzzer remain available on the Conduit’s own battery—even when the airframe loses power.

A downed drone hidden between tall rows in a large cornfield, with a broad GNSS search area and tight recovery-buzzer signal rings
01 · Coordinates get you close
02 · Buzzer gets you there
LAST FIX  VALID
AIRFRAME  OFFLINE
CONDUIT  ACTIVE
BUZZER  SOUNDING
05 Companion computing

Commodity hardware, transformed into a smart companion computer.

Conduit takes the readily available LilyGo T-SIM7600NA and turns it into a cellular companion computer. SkyRelay’s proprietary firmware connects the flight controller to cloud operations, handles MAVLink telemetry and commands, and receives updates over LTE.

06 Ownership

Data ownership, on terms you can put in a contract.

Flight records and positional history belong to the operator, exportable in standard formats on request. Accessing your own fleet’s history does not require SkyRelay support, and nothing is held hostage by a subscription lapse.

Self-select by airframe

Track and Link—same hardware, different coverage.

One Conduit unit. What it does for a given aircraft depends on whether that aircraft shares its flight data.

CapabilityTrack · Closed systemsLink · MAVLink airframes
Compatible platformsDJI · Autel · SkydioArduPilot · PX4 · Cube · Auterion
Command-link takeover (PACE tier A)Not applicable—no flight-data accessIncluded
GPS recovery + audible buzzerIncludedIncluded
Insurance-grade flight logIncludedIncluded
As built

Technical
specifications.

Presented complete and unrounded—the hardware, interfaces, and physical envelope of the current Conduit.

SkyRelay Conduit dimensions: 125 × 40 × 47 mm and 160 g
Compute and connectivity
ProcessorESP32-WROVER (dual-core, 240 MHz)
Cellular chipsetSIM7600NA (LTE Cat-1, 10 Mbps down / 5 Mbps up)
BandsB2 / B4 / B5 / B12 / B13 / B14 / B25/ B66 / B71
CarriersAT&T, T-Mobile, Verizon—US · Bell, Rogers, Telus, Videotron—Canada (via Hologram, 550+ networks globally)
Position and recovery
GPS / GNSSSIM7600 integrated GNSS (GPS + GLONASS) · ±2.5 m CEP
BluetoothBLE 4.2 (Remote ID scan)
Battery18650 Li-Ion battery
Recovery buzzer85 dB passive piezo
Vehicle interface
MAVLinkMAVLink2 via UART
Interface cable4-pin JST SH1.0, 20 cm
Physical construction
Case3D-printed, safety yellow/gold
Dimensions125 × 40 × 47 mm (4.9 × 1.6 × 1.9 in)
Weight160 g (5.6 oz)

Network coverage

SkyRelay uses Hologram IoT SIM cards. The SIM auto-selects the strongest available carrier across 550+ networks in 190+ countries.

United States
  • AT&T Mobility 5G · LTE · LTE-M · NB-IoT
  • T-Mobile 5G · LTE · LTE-M · NB-IoT
  • Verizon Wireless 5G · LTE · LTE-M · NB-IoT
  • GCI Communications LTE
Canada
  • Bell Mobility LTE · LTE-M
  • Rogers Wireless 5G · LTE
  • Telus LTE · LTE-M
  • Videotron LTE · LTE-M

The technologies below describe Hologram partner-network availability. Conduit itself connects using its LTE Cat-1 modem and supported LTE bands.

Operator manual

Plug and
ready to fly.

On the Conduit K01 case shown, the UART crossover is already handled inside the case. Connect the four-pin cable to a spare MAVLink UART by matching the labels end to end—GND to GND, 5V to 5V, TX to TX, and RX to RX. Do not cross TX and RX again.

Conduit K01 installation · MAVLink UARTMatch labels · no rewiring
Flight controllerSpare UART / TELEM
Conduit K014-pin JST SH1.0 harness
GNDGND
5V5V
TX →→ TX
RX ←← RX
K01 harness: match the printed labels. Connect flight-controller TX to Conduit TX and flight-controller RX to Conduit RX. The crossover is internal, so crossing these leads again will wire the serial link incorrectly.
Front face of SkyRelay Conduit showing the recovery buzzer and QR code
Device controls and service points
Recovery buzzerAudible SOS
USB serviceFirmware upgrade
Power switchOn / off

Cube/Pixhawk-standard boards with JST-GH 1.25 mm TELEM ports require a JST SH1.0-to-JST GH 1.25 mm adapter cable, sold separately.