011-00779-30

Garmin GTX 33ES transponder 011-00779-30

011-00779-30 is the exact Part Number for this Garmin GTX 33ES remote Mode S Extended Squitter transponder. The remotely installed line-replaceable unit supports aircraft surveillance replies while compatible cockpit equipment supplies the pilot controls and configuration interface. Its enclosure does not have a front-panel keypad because code entry, mode selection and IDENT are handled through the approved integrated avionics display.

The exact label identifies GTX 33, P/N 011-00779-30 and 14/28 VDC. Garmin equipment records associate the -30 configuration with ES capability. The original identification plate and serial number should be checked against the release documentation, aircraft records and applicable software status before installation. Similar GTX 33 enclosures with different suffixes can have different approved capabilities.

Mode S Extended Squitter system role

The GTX 33ES receives 1030 MHz interrogations and transmits Mode S replies on 1090 MHz through the installed transponder antenna. In a properly configured ADS-B Out architecture, the Extended Squitter function broadcasts the approved surveillance data supplied by compatible position, altitude and avionics sources. The unit does not generate all required navigation data independently, so the complete installation determines operational compliance.

A typical chain is crew command from the integrated display, aircraft identity and altitude information from approved sources, position data from compatible navigation equipment, processing by the GTX 33ES, and 1090 MHz output through the antenna. Every link must use approved wiring, configuration and software. A serviceable transponder cannot compensate for an unapproved position source, incorrect aircraft parameters or excessive antenna-cable loss.

Exact -30 configuration and suffix control

The 011-00779-30 suffix is an essential ordering detail. It distinguishes this ES-enabled configuration from the standard 011-00779-10 GTX 33 hardware and from other family variants. A matching case size or connector does not prove equivalent functionality. Buyers should compare the complete Part Number, modification status, software and approval basis rather than ordering only by the model name printed on the plate.

The plate confirms 14/28 VDC operation and includes original TSO, ETSO and software references. An orange material-compliance label and the blue Garmin side strip remain part of the authentic photographed unit. These markings should not be treated as substitutes for release paperwork, but they help document the exact physical configuration and should remain readable in the product gallery.

Installation, configuration and functional testing

Installation requires a compatible rack, connector, circuit protection, data interfaces, altitude and position sources, aircraft configuration, antenna and coaxial cable. The equipment must be programmed with the correct aircraft identity and system parameters under approved procedures. Cooling, bonding and equipment-location requirements also need verification. Compatibility with a particular G1000 or other integrated suite should be confirmed from the aircraft documentation.

Receiving inspection should verify Part Number 011-00779-30, serial number, label condition, connector contacts, rails and evidence of damage or unauthorized repair. Bench testing should confirm control communication, Mode S and ES functionality, receiver sensitivity, transmit frequency and power, altitude reporting and configuration retention. Post-installation tests remain necessary to validate the entire antenna and data chain.

Serviceable supply and ordering information

This 011-00779-30 GTX 33ES is offered in Serviceable condition from partner stock with a six-month warranty. The main image gives a clean catalog view, while the gallery image preserves the exact Part Number plate and original product markings. The photographed serial number identifies the reference unit and does not guarantee shipment of that same serial-numbered component unless confirmed in the quotation.

For an inquiry, specify Part Number 011-00779-30, model GTX 33ES, aircraft type, integrated display, approved position source, bus voltage, required documentation and quantity. Related transponders, navigation equipment and control displays can be reviewed in the Garmin / BendixKing / Honeywell / Collins category. System relationship does not establish interchangeability.

Product Type: Remote Mode S Extended Squitter transponder

Manufacturer: Garmin

Model: GTX 33ES

Designation: 011-00779-30

Alternative Designations: GTX33ES; GTX-33ES; 0110077930; Garmin GTX 33ES

Main Function: Mode S replies and approved 1090 MHz Extended Squitter output

Receive Frequency: 1030 MHz

Transmit Frequency: 1090 MHz

DC Power According to Plate: 14/28 VDC

Cockpit Control: Compatible integrated avionics display

Position Data: Requires an approved compatible navigation source for ADS-B Out operation

Altitude Data: Requires approved aircraft altitude input

Typical Signal Chain: Display / position / altitude data → GTX 33ES → transponder antenna

Exact Suffix Note: -30 identifies the ES-enabled configuration in Garmin records

Installation Area: Approved remote avionics equipment location

Associated Equipment: Display, position source, altitude source, rack, connector and antenna system

Environmental and Software References: As marked on the exact manufacturer plate and applicable installation data

Exact Dimensions and Weight: Confirm from the applicable GTX 33ES installation data

Aircraft Applicability: Confirm from the aircraft equipment list and approved ADS-B installation

Interchangeability: Verify exact suffix, ES approval, software, configuration, rack and wiring

Condition: Serviceable

Warranty: 6 Months

Technical Documentation: Applicable Garmin GTX 33ES installation, configuration and maintenance data

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.