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Roger Wilco Aviation Services
FAA CERT. REPAIR STATION · AVIONICS · AIRFRAME & POWERPLANT · NDT · FABRICATION
Cert. No. RWSR491E
KYKN · Yankton, SD
FAA Part 145 Repair Station · Cert. RWSR491EAuthorizedGarminDealerAEA MemberNBAA Member
Certified Garmin Dealer · FAA Part 145 Repair Station #RWSR491E— transponder and ADS-B Out compliance planning —

ADS-B Out installation
without treating compliance like a parts order.

Transponder upgrades · GPS source review · antenna planning · configuration · FAR 91.227 documentation

Compliance Work

ADS-B Out has to work as a system.


ADS-B Out compliance is more than installing a transponder. The aircraft needs an approved position source, correct configuration, antenna and wiring decisions that fit the airframe, and paperwork that makes the upgrade understandable after the airplane leaves the shop.

RWAS plans ADS-B Out and transponder work from a certified Garmin dealer and FAA Part 145 repair-station environment. That lets the conversation cover the whole aircraft: existing equipment, panel space, navigator compatibility, electrical condition, antenna locations, future Garmin upgrades, and the owner's actual mission.

Garmin avionics display and panel equipment used in integrated aircraft avionics planning
FIG. 01

Transponder and ADS-B decisions often connect to the rest of the panel, especially when a navigator, display, or autopilot upgrade is also planned.

Upgrade Planning

Choose the route before buying the box.


Some aircraft only need a focused ADS-B Out correction. Others are better served by a transponder upgrade that is planned alongside a GTN Xi navigator, G3X Touch display, G5, GI 275, or autopilot project. RWAS helps sort the short-term compliance need from the long-term panel plan.

  • Existing equipment review

    Identify the current transponder, encoder, GPS source, antennas, and wiring condition before recommending a path.

  • Garmin GTX planning

    Review Garmin transponder options in the context of the aircraft, navigator, display, and ADS-B Out requirement.

  • Antenna and wiring plan

    Plan location, routing, access, and installation details instead of assuming old wiring is still the right answer.

  • Configuration and validation

    Configure the system, complete functional checks, and document the work for future maintenance.

Quote Prep

Send enough detail to avoid a fake quote.


Useful ADS-B quote requests include aircraft make/model, N-number, current transponder model, current navigator or GPS source, panel photos, antenna location photos if available, and whether the owner is planning any other Garmin work during the same downtime window.

If the airplane has an intermittent transponder, failing altitude reporting, or a known ADS-B performance report issue, include that history with the request. A compliance fix and a clean installation quote are different jobs.

Request ADS-B quoteGarmin installation overview

Related Work

ADS-B is often the smallest part of the panel decision.


Owners sometimes use an ADS-B project as the entry point for a broader panel refresh. RWAS can help compare a focused compliance job against a staged Garmin plan that also addresses navigator, display, audio panel, autopilot, and fabrication needs.

GFC 500 autopilot planningBuild a panel concept