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Matt Thurber

Honeywell has received FAA technical standard order approval for its new Type J diplexer/low-noise amplifier (DLNA), which is designed to mitigate interference by certain terrestrial and cellular networks with L-band satellite communications. Typically, business aviation operators use L-band for safety services functions such as FANS 1/A messaging, and ancillary terrestrial component and LTE and 5G cellular networks being deployed can cause such interference because they operate in frequency bands adjacent to Inmarsat’s L-band network, according to Honeywell.
No changes to the aircraft’s wiring, connector interfaces, or mounting provisions are needed when replacing existing diplexers with the Type J DLNA. All operators with Class 6 or 7 satcoms can upgrade to the new diplexer.&nbsp;
“There has been growing concern globally that certain 5G services could interfere with some aircraft satcom systems, and the Type J DLNA can limit those effects,” said Honeywell Aerospace v-p and general manager of services and connectivity Steve Hadden. “With the upgrade, airlines and aircraft operators will continue to have access to Future Air Navigation System [FANS] routes, which allow airplanes to fly at their optimum altitudes and burn less fuel. That creates a significant reduction in flight durations and fuel costs while improving overall flight safety.”

News and developments about everything that goes into the cabin of an aircraft, from floor coverings to headliners, with a special emphasis on in-flight entertainment, communications and other electronics for passengers. If it is in the cabin of an aircraft, it’s covered here.

Honeywell's DLNA Diplexer Protects Against 5G Satcom Interference

The new diplexer is FAA TSO approved

Honeywell has received FAA technical standard order approval for its new Type J diplexer/low-noise amplifier, which is designed to mitigate interference by certain terrestrial and cellular networks with L-band satellite communications. 

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