Garmin GTX 328 Transponder

Garmin GTX 328 Transponder Package – With 8130, Encoder, Trays, Plugs, and Circuit Breaker Complete, Installation-Ready Mode S Transponder Solution. This offering features a Garmin GTX 328 Mode S transponder package that is ideal for aircraft owners, avionics installers, and maintenance facilities seeking a dependable, fully documented solution. Removed in working order and accompanied by an FAA 8130 Airworthiness Approval Tag, this unit delivers both performance and traceability. The package is exceptionally complete, including the Ameri-King AK350 altitude encoder, mounting trays, plugs, connectors, and a 5-amp circuit breaker—everything needed to streamline installation and integration into your aircraft. Garmin GTX 328 Transponder

Garmin GTX 328 Transponder

Removed in Working Order for Added Confidence

A significant advantage of this system is its proven operational status prior to removal. The GTX 328 was removed in working order as part of an upgrade, not due to malfunction or failure. This known history gives operators and technicians confidence in functionality and reduces uncertainty compared to units with unknown storage or service backgrounds. Clear provenance and proper handling history support easier acceptance into maintenance records and inspection processes. Garmin GTX 328 Transponder

Garmin GTX 328 Transponder

Backed by FAA 8130 Documentation

Proper documentation is essential in today’s regulated aviation environment. This package includes an 8130 form, providing verification of identification and status to support installation, traceability, and compliance requirements. Avionics professionals recognize that the value of a transponder is not only in the hardware, but also in the paperwork that ensures seamless integration into certified aircraft records.

Garmin GTX 328 Transponder

Trusted Mode S Performance for International Operations

The Garmin GTX 328 has become one of the most respected Mode S transponders, particularly in European and international environments where Mode S capability is required. Its compact design, low power consumption, and Garmin-grade reliability make it a trusted choice for:

• General aviation aircraft

• Legacy airframes undergoing upgrades

• Operators who do not require full ADS-B Out capability

• International operations with Mode S mandates

The transponder offers robust performance without adding unnecessary complexity to aircraft electrical systems.

Garmin GTX 328 Transponder

Package Includes Encoder, Trays, Plugs, and Circuit Breaker

What sets this offering apart is the completeness of the bundle. Included components are:

• Garmin GTX 328 Mode S transponder

• Ameri-King AK350 altitude encoder

• Mounting trays

• Plugs and connectors

• 5-amp circuit breaker

These accessories eliminate the need to source installation hardware separately—a process that can often cause delays or added cost. With trays, plugs, and circuit protection already included, technicians can move more efficiently through installation planning and execution.

Garmin GTX 328 Transponder

Integrated Altitude Reporting Capability

The included Ameri-King AK350 altitude encoder enables smooth altitude reporting capability. When paired with the GTX 328, it creates a robust Mode S transponder system capable of transmitting accurate altitude information to ATC. This fully-paired system simplifies integration and helps ensure compatibility between components right from the start. Garmin GTX 328 Transponder

Efficient, Reliable, and Widely Supported

The GTX 328 is known for:

• Low power draw

• Compact footprint

• Durable construction

• Simple front-panel interface

• Reliable long-term performance

Its design supports straightforward operation while maintaining strong transponder reliability—an essential factor for flight safety and regulatory compliance. Garmin GTX 328 Transponder

Ideal for Practical and Budget-Conscious Upgrades

This package is an excellent option for:

• Light aircraft upgrades

• Replacement of aging Mode A/C units

• International operations requiring Mode S

• Aircraft not yet transitioning to ADS-B Out

It delivers meaningful capability in a cost-effective, installation-ready format while maintaining Garmin’s reputation for avionics quality.

The Garmin GTX 328 Mode S transponder package offers a rare combination of complete accessories, working-order removal, 8130 documentation, and integrated altitude encoding capability. Fully equipped and ready for installation, it stands out as a dependable choice for aircraft owners and avionics professionals seeking a proven, well-documented Mode S solution for their next maintenance or upgrade project.