Quick Shop
×
Product Image
Length
Quantity
Your Cart
×
  • Quantity
    Delete
Total (USD)
Add Options
×

Please check the boxes for the options that you would like to add. Leave all boxes unchecked for unit only.

Logo
1-877-4-SPRUCE | info@aircraftspruce.com
Aircraft Spruce & Specialty Co.
  • Wishlists
  • 877-477-7823
  • Contact Us
  • Sign InAccount Icon
  • Cart Cart Icon 0
 
 
  • Shop All Categories
    • BackAll Categories
    • Airframe Parts
      • BackAirframe Parts
        Curtis Superior ValvesShop Now
    • Avionics
      • BackAvionics
        Garmin G5 HSIShop Now
    • Books & Videos
      • BackBooks & Videos
        ASA Flight TrainingShop Now
    • Composite Materials
      • BackComposite Materials
        3M Aviation ProductsShop Now
    • Covering Supplies
      • BackCovering Supplies
        PTI PaintShop Now
    • Electrical
      • BackElectrical
        Whelen Orion 360 LED BeaconShop Now
    • Engine Parts
      • BackEngine Parts
        Kelly Aerospace HarnessShop Now
    • Hardware
      • BackHardware
        HardwareShop Now
    • Instruments
      • BackInstruments
        JPI EDM 730 MonitorShop Now
    • Kits & Plans
      • BackKits & Plans
        PTI PaintShop Now
    • Landing Gear
      • BackLanding Gear
        APS Brake
        Discs & Linings
        Shop Now
    • Metals and Plastics
      • BackMetals and Plastics
        Metal & Plastic ProductsShop Now
    • Pilot Supplies
      • BackPilot Supplies
        Lightspeed Zulu 3 HeadsetShop Now
    • Tools
      • BackTools
        Vampire ToolsShop Now
    • Wood Products
      • BackWood Products
        Wood ProductsShop Now
    • Shopping Tools
      • BackShopping Tools
        Aircraft Spruce Gift CardShop Now
  • Shop By Brand
  • Parts Finder
    • BackParts Finder
  • Order by Part Number
    • BackOrder by Part Number
    • To add more PNs, please click here
  • Account IconContact Us
  • Account IconCall Us
  • Account Icon Sign In
FREE SHIPPING ON ORDERS OVER $350 (USA ONLY - SOME EXCLUSIONS APPLY) | 877-4-SPRUCE
Home / Avionics / Transponders / Garmin /Garmin GTX345 Digital Transponder For Experimental Aircraft
Main Image
Main Image
Main Image
Main Image
Main Image
Main Image
Main Image
Thumbs 1
Thumbs 1
Thumbs 1
Thumbs 1
Thumbs 1
Thumbs 1
Thumbs 1
+3 More
  • SHARE
  • Facebook
  • Pinterest
  • Tweeter
  • Print Page
  • Email Page

Garmin GTX345 Digital Transponder For Experimental Aircraft

2 Reviews 60 Answered Questions
Select Harness:
4ft Wire PigtailCustom Wire PigtailUnit Only
GPS Source:
Without GPSWith GPS
Quantity
Add to Wishlist
JUMP TO
  • JUMP TO
  • Overview
  • Documents
  • Videos
  • Reviews
  • Q&A
  • View in Catalog
  •  

Overview

Note: The GTX 335/345 can only be sold to experimental aircraft. Certified aircraft must purchase this unit from a shop certified by Garmin to perform installations.

All-in-one Transponder Solution for ADS-B gOuth and gInh
  • 1090 MHz ADS-B gOuth enables aircraft to operate at any altitude, in airspace around the globe
  • Combines Mode S Extended Squitter (ES) transponder and optional WAAS/GPS position source in a single unit
  • Provides access to dual-link ADS-B gInh traffic and subscription-free weather on compatible displays
  • Wirelessly stream weather, traffic, GPS position and backup attitude via Connext™ link to Garmin Pilot™ and ForeFlight Mobile apps as well as the aera® 795/796 or 660 portables
  • Easy replacement for your existing transponder, with common 1.65-inch tall form factor
Meeting ADS-B equipage rules for NextGen airspace just got easier – and more beneficial – for thousands of aircraft owners worldwide.

With the introduction of the GTX 345 series of Mode S Extended Squitter (ES) transponders, Garmin provides a one-box, one-swap solution that enables owners and operators to meet ADS-B requirements with minimal expense, downtime and disruption to their panels – while providing all the weather and traffic benefits of ADS-B gInh.

Your Transition to NextGen Made Simple
The IFR-certified GTX 345 looks and operates like a standard Mode S transponder. It fits in the same 1.65-inch high slot in your avionics stack. It boasts a bright, sunlight-readable digital display, a pressure altitude readout, handy timers for approaches and other operations, plus dedicated pushbuttons numbered 0-9 for quick and easy squawk code entry. But where other transponders leave off, the GTX 345 is just getting started. The addition of 1090 MHz ADS-B gOuth transmission capability (using precise GPS-referenced positioning information) enables the transponder to automatically output the more accurate, more dynamic traffic surveillance data that the NextGen airspace system requires. Plus, available ADS-B gInh reception unlocks even more capabilities for pilots, enabling them to display ADS-B traffic, weather and more on a variety of installed or portable displays.

Your WAAS, Your Way
The extra-precise GPS position reference needed to meet the traffic monitoring requirements of ADS-B can be provided either by the WAAS/SBAS-compliant navigation system that you may already have in your panel – or by an optional built-in GPS position source available with your GTX 345 transponder. However your aircraft is currently equipped, the Garmin GTX 345 series offers a simple, minimally intrusive ADS-B solution to meet your needs. For even more flexibility, optional remote mount GTX versions are available for compatibility with the GTN™ 750/650 series of GPS/Comm/Nav systems, as well as select Garmin G1000® integrated flight deck systems – all of which provide built-in remote transponder code selection and control.

Benefits of ADS-B gInh
In addition to 1090 MHz ADS-B gOuth, the GTX 345 also makes available the subscription-free weather and traffic display capabilities enabled by ADS-B gInh – which can be interfaced with compatible cockpit displays or streamed wirelessly via Garmin Connext™ to aera 796/795 or 660 series portables, as well as to popular tablets/mobile devices by way of apps such as Garmin Pilot™, or ForeFlight Mobile. The ADS-B weather link is continuously broadcast on the 978 MHz Universal Access Transceiver (UAT) frequency, and is similar to the basic services offered by leading commercial satellite weather providers. For example, you can access NEXRAD imagery, METARs, TAFs, winds and temperatures aloft, PIREPs, NOTAMs, and more1: Along with this, you can also receive ADS-B traffic position reports (and threat-level symbology) to help you see-and-avoid converging targets in busy airspace. Spoken audio alerts call out potential flight path conflicts.

Dual-link Completes the Picture
The GTX 345 ADS-B receiver is a dual-link system. So, it can receive on both frequencies (978 MHz and 1090 MHz) authorized for ADS-B operations in the U.S. Not only does this provide the most complete traffic picture from aircraft transmitting on either frequency, but it also enhances your aircraftfs ability to access ADS-B transmissions and services from virtually anywhere. When integrating an active traffic system with the GTX 345, ADS-B traffic and active traffic targets are merged on the display to give pilots a truly comprehensive traffic picture.

ADS-B for Your Integrated Flight Deck
With a variety of compatibilities covering most fielded displays, ADS-B enabled GTX series transponders offer the easiest NextGen upgrade path available from Garmin – especially for owners of select G1000-equipped aircraft. For these systems, a remote mount version, the GTX 345R, interfaces with either the aircraftfs existing WAAS position source for navigation or uses an optional built-in WAAS position source to meet ADS-B gOuth requirements. The G1000 series displays interface with the remote GTX transponder to provide onscreen squawk code entry and control in the conventional manner. Depending on the software version installed, your Garmin glass displays can also support subscription-free weather on the MFD – as well as ADS-B traffic targets on both the MFD and PFD displays for aircraft equipped with Synthetic Vision Technology (SVT™).

Alerting and Altitude Encoding Made Simple
For added situational awareness, the GTX 345 incorporates a built-in audio output for audible traffic and altitude alerts1, which can be integrated into your existing audio panel. You can also pair the GTX series with an optional Garmin altitude encoder to satisfy data transmission requirements for IFR. As opposed to other transponders with altitude encoding built in, the Garmin altitude encoder mounts separately on the install rack. So, should the transponder ever require removal, therefs no need for the static line to be disconnected. Which, in turn, eliminates the need for a follow-on leak check – and thus helps minimize ongoing service costs.

An easier path to NextGen
The Garmin GTX 345 series is being FAA approved for installation on hundreds of todayfs most popular aircraft makes and models. For decades, Garmin has led in the development and deployment of ADS-B technology. And when you compare all the options available, itfs clear that Garmin is committed to making your transition to ADS-B operations as simple, economical and worry-free as possible.

Documents

  • GTX™ 335/345 Support for G1000® Aircraft (PDF)

Videos

https://www.youtube.com/embed/S_0F6B90FzM
  • Customers Also Viewed
  • Frequently Purchased With
  • Related Items
Promo
Garmin GTX335 ADS-B Transponder With GPS + GAE 12 Encoder Promo Kit For Certified Aircraft
$3295.00
Quick Shop
Promo
Garmin G5 Electronic Flight Instrument - Experimental
$1517.00
Quick Shop
Promo
Garmin GTN 650Xi GPS / Nav / Comm System For Experimental Aircraft
$11352.00
Quick Shop
Promo
Garmin GTR 200 Panel Mount COM Radio
$1543.00
Quick Shop
Promo
Garmin GTN 750Xi GPS/Nav/Com/MFD System With Harness For Experimental Aircraft
$16125.00
Quick Shop
Promo
Garmin GTR 225 VHF COM Radio For Certified Aircraft
$2246.00
Quick Shop
Promo
ACK 406/121.5 Mhz E-04 ELT FAA TSO
$654.00
Quick Shop
Promo
Garmin VHF Nav / COM Radio GNC 255A / 255B For Experimental Aircraft
$5316.00
Quick Shop
Promo
Garmin GA 35 TSO WAAS GPS Antenna TNC
$309.00
Quick Shop
Promo
BendixKing KT 74 ADS-B Mode S Transponder For Certified Aircraft - WAAS GPS Nav Required
$2973.00
Quick Shop
Promo
Dynon Skyview EFIS / EMS / GPS System
$24.00
Quick Shop
Promo
Trig TT22 Mode S Transponder
$2495.00
Quick Shop
Promo
Garmin Panel Mount COM Radio GTR 225A / 225B For Certified Aircraft
$3537.00
Quick Shop
Promo
Ted Transponder Antenna
$22.85
Quick Shop
Promo
Bose A20® ANR Headset - Dual GA Plugs - With Bluetooth
$1095.00
Quick Shop
Promo
Headset Panel Jacks
$14.50
Quick Shop
Promo
GARMIN GAE 12 ALTITUDE ENCODER (FOR GTX 335 / 345 / 375)
$263.95
Quick Shop
Promo
UNITED TSO MANIFOLD PRESSURE GAUGE 10 TO 75
$1184.00
Quick Shop
Promo
CONCORDE ELCON CONNECTOR CBP 3349-2W
$212.95
Quick Shop
Promo
MS9144-01 GASKET, PROPELLER GOVERNOR
$19.75
Quick Shop
Promo
COMANT CI-105 DME XPDR ANTENNA BNC
$171.75
Quick Shop
Promo
GARMIN GAD 29C ARINC 429 INTERFACE
$475.00
Quick Shop
Promo
GARMIN FLIGHTSTREAM 210
$1045.00
Quick Shop
Promo
COAX CABLE RG 400 M17/128-RG400
$3.95
Quick Shop
Promo
BNC RIGHT ANGLE MALE TO FEMALE
$6.95
Quick Shop
Promo
KLIXON CIRCUIT BREAKER 7277-2-1/2
$118.95
Quick Shop
Promo
GARMIN G3X GMU 11 MAGNETOMETER 010-01788-00
$350.00
Quick Shop
Promo
GARMIN G3X GEA 24 EIS ENGINE MODULE CONNECTOR KIT
$147.75
Quick Shop
Promo
GARMIN G3X GDU 450 455 7" SCREEN INSTALL KIT
$67.00
Quick Shop
Promo
GARMIN GTX 345 XPDR MODE S WITH GPS W/ EXP 4FT PIGTAIL
$5517.00
Quick Shop
Promo
GARMIN GTX 345 XPDR MODE S WITH GPS WITH CUSTOM HARNESS
$5582.00
Quick Shop
Promo
GARMIN GTX 345R XPDR MODE S WITH GPS WITH 4FT HARNESS
$5658.00
Quick Shop
Promo
GARMIN GTX 345R XPDR MODE S WITH GPS WITH CUSTOM HARNESS
$5723.00
Quick Shop

Reviews

Submit a Review

I bought the GTX 345 w/internal GPS / Area 600 bundle for my RV6. I reused my Ameri-King altitude encoder. The tool for crimping the pins onto the encoder wires cost more than the new Garmin encoder. I was also surprised at the cost of the crimpers to make up the BNC antenna connection. I am very happy with the combination, and passed my rebate flight test the first time out. The only reason I am giving this product 4 stars instead of 5 is because the Garmin manual is so weak. It does a horrible job explain the proper configuration of the system. There is at least one on-line tutorial, but it was only slightly helpful because it was for a different configuration than what I was trying to set up. Hopefully as more of these units are sold there will be better information available. I also found the process of updating the Area 660 nav data to be very cumbersome. One point of caution if you are using Foreflight - the ADS-b Airport weather displayed on the Area 660 is color coded differently. On the Garmin screens Green is marginal VFR and Red is Marginal IFR. I chose this package because it seemed like the cheapest and easiest way to get ADS-B in and out in one package, and I still fee that is true. I would go this route again given the other available offerings.

Keith H
December 11, 2017

Very nice

Beavers I
August 13, 2017

Q&A

Submit

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Will the Garmin GTX 345 (Part # 11-14175) interface a Garmin 430 (non-WAAS) and MX-20 MFD?

Yes, however you will not transmit ADS-B out. Please see part number 11-14177 for ADS-B compliance.

Q: Will the GTX-345 be able to display TIS-B traffic on a GNS-530W display?

Yes, the GTX 345 transponder will interface with the GNS-530W to display ADS-B In information including TIS-B traffic.

Q: Will Garmin still be selling the GDL88 or is this a replacement for the GDL88? To put it another way, does the GDL88 do anything that the GTX345 does not?

Yes, the GDL 88 is still available but can be replaced by the GTX 345. The GTX 345 offers the same features as the GDL 88.

Q: Will the GTX 345 be a plug and play replacement for the GTX 330?

The height and width of the transponders is the same so technically it will fit the same hole in the panel, however it will still require a new rack and connectors to be installed.

Q: Can I connect The Garmin GTX 345 Transponder to my 430waas to display traffic and weather? If so, can I stream to Foreflight as well?

Yes, the GTX 345 will interface with the Garmin 430W. The GTX 345 can also send the signal to an iPad running Foreflight with Connext link.

Q: Can FlightStream 210 be installed with the GTX 345 Transponder?

The Flightstream 210 can be used in conjunction with the GTX 345 to transfer flight plan information. This connection is done direct from the Garmin GPS and does not tie into the transponder.

Q: Can the traffic and weather outputs from the GTX 345 be displayed on a Garmin 496?

No, weather is not available on the 496 other than XM. Traffic will be limited to 8 targets when connected via the power data cable part number 11-02694. The GTX 345 has RS-232 outputs which can be wired to the power/data cable.

Q: Will the GTX 345 transponder be compatible with my Garmin GPSMAP 696?

No, as of 3/29/16 it is not compatible with the 696. Garmin is currently working on an interface solution.

Q: If I am already using a GDL-39 3D, will the non-GPS version of the GTX 345 talk to it (bluetooth) for GPS data?

The non-GPS version is only used if you already have a WAAS GPS installed. The GDL 39 3D and GTX 345 do not interface. The Bluetooth feature is for providing weather and traffic to a display unit only (ie iPad).

Q: I was thinking about getting a GDL-88 along with a Flight Stream 210. Now it seems like the GTX-345 might be the answer for my ADS-B Solution. If I read correctly, it provides FIS and TIS info as well as a backup attitude presentation on the Foreflight app. Does the GTX-345 also have the capability to transfer Flight Plan data between my 430W and Foreflight running on my iPad?

No, a Flightstream 210 will still be required.

Q: How many portable devices (i.e., tables) can you connect to the GTX 345 at one time using the Bluetooth/Connext wireless technology?

As of 2/10/16 Garmin allows for 2 devices to be connected simultaneously.

Q: NavWorx ADS-B has an AutoStealth mode. Their website states when flying VFR, there is no requirement to broadcast your ICAO identification information. So, when squawking 1200, their box sends random ICAO data. Does Garmin 345 have a similar feature?

Mode S transponders are not able to use anonymous mode, this is only available with UAT devices.

Q: Can the Garmin GTX 345 transponder use the same antenna as the Garmin 330 or will I need a new antenna? Also, does the 345 need two separate antennas or is it installed with one for all the features? I have a WAAS GPS installed already.

Yes, the transponder antenna is the same as the 330. The 345 only needs one transponder antenna if you already have WAAS GPS from another source.

Q: I have a Garmin Aera 660 with the GDL 39 3D. Will the Garmin GTX 345 be able to use the GPS position source from the 660?

No, since the Aera 660 is not an FAA Approved WAAS GPS source it cannot be used by the Garmin GTX 345.

Q: Can the traffic and weather from the Garmin 345 transponder be displayed on the Garmin Aera 660 without any other hardware? If so, can the traffic and weather be shown on the map or would it be a stand alone page?

The GTX 345 has built-in Bluetooth and can wirelessly send ADS-B data directly to Aera 660.

Q: I have a Non-WASS GNS530. Can I use the GTX345 with WASS and connect it to the 530 so that it displays ADS-B traffic and weather? Will the GNS530 be WASS capable when connected to the GTX345?

Per Garmin, customer would need to send the 530 in for upgrade to display weather.

Q: My ELT (an Artex ELT 345) needs GPS position information via RS-232. Can the WAAS-equipped GTX-345 supply that information via one if its serial ports?

Garmin recommends connecting your ELT with a GPS such as the Aera 660 or GTN 650.

Q: Will the Garmin GTX 345 transponder include the rack and connectors?

Yes, the Garmin GTX 345 includes the new rack and connectors needed for the install.

Q: What temperature probe do you hook up to the Garmin GTX345 to be able to get density altitude?

You will need the Davtron probe found under p/n 10-00653.

Q: What is the transmit RF power out on the Garmin GTX345 transponder?

Per Garmin: 125 W min at antenna, with max 2db cable loss, 250 W nominal at unit.

Q: Will the GTX-345 display traffic and basic ADS-B weather to an experimental Chelton IDU-1 display? Can the GTX-345 accept position source information from a fully upgraded WAAS GNS-480?

The GTX 345 has Bluetooth capabilities. At this time, only Garmin displays are compatible. The 345 will accept position source from the GNS-480 so long as the software is fully updated.

Q: Will the GTX 345 interface with my GNS 480 & MX 20 Including TIS-B traffic with weather?

The 345 will accept position source from the GNS-480 so long as the software is fully updated. This unit will succesfully interface with both the GNS 480 and MX 20 for ADS-B compliance.

Q: When ForeFlight is connected to the GTX 345, will it display synthetic vision or do you still have to use the stratus 2S to access synthetic vision on the iPad?

Yes, the Foreflight app will display synthetic vision from the GTX 345.

Q: I currently have installed a GTX 327. Will I need to change the entire rack or just the backplate to install the GTX 345 transponder?

You will need to change the entire rack and backplate.

Q: What size circuit breaker is recommended for the Garmin GTX-345 w/GPS?

Per the installation manual, 3 amp.

Q: With a Garmin GTX 345 providing ADS-B In information to a Garmin 796, can the ADS-B In weather be turned off and just receive traffic position data? And assuming that can be done, then receive weather information through XM only?

Per the manufacturer, yes you can pair both ADS-B and XM data utilizing the Bluetooth ADS-B and the GXM 42 antenna.

Q: If I have a GTN 650, would there be any reason to install the GTX 345 with GPS in it? Or would that just be wasting money?

No, if you have the GTN 650, you can use that as your WAAS GPS source to make your aircraft ADS-B in and out compliant. No reason other than redundancy to buy the "with GPS" version.

Q: Does the GTX 345 require an additional antenna to receive ADS-B Weather since that is considered Line of Sight? How does it receive weather from ground stations?

No, the GTX 345 does not require an additional antenna to receive the "ADS-B in" weather and traffic signals. It is built-in to the box and once powered on and receiving line of sight feeds from the ADS-B towers, it can Bluetooth the information directly to a Garmin 795/796/660 GPS or iPad running Garmin Pilot or Foreflight.

The GTX 345 with GPS is ADS-B out compliant right out of the box. The GTX 345 without GPS requires an approved WAAS GPS position source in order to be ADS-B out compliant.

Q: Will the Garmin GTX 345 provide GPS data (position) information via Bluetooth to the 796 or will the 796 require its own WAAS antenna?

No, since the Garmin 796 has it's own internal WAAS antenna, there is no need for the GTX 345 to send GPS data to the 796.

Q: Instead of using Bluetooth, can I hardwire an RS 232 line from the 345 to my Aera 660 to display ADSB traffic, weather and the AHARS data for synthetic vision? If so, can I then still use Bluetooth to send data to my IPad running Garmin Pilot?

Yes, you can do this. You will need part # 10-06028 to wire the GTX 345 to the Aera 660.

Q: If I purchase a Garmin 345 GTX, does it replace the need for a Stratus II, with Foreflight?

The GTX 345 is both ADS-B in and out. It has a built in Bluetooth to pair with an iPad or other device for your ADS-b in data. Both the Garmin Pilot App and Foreflight Mobile apps are supported and will work with the ADS-B out signal sent from the GTX 345.

Q: What is the difference between the two harnesses availabe for the Garmin GTX 345 transponder? One says 4 foot harness and the other says custom harness.

The 4 foot harness model is a standard, stocked harness that is 4 foot leads for power, ground, RS-232, config module, audio out, dimmer and keep alive, external ident, and squawk switch. It is essentially the included parts in the connector kit wired with 4 foot leads. The custom harness allows you to choose the length of each lead. This is necessary for custom installs where 4 feet of wire may not be enough to reach the destination of the leads. Once you add the unit with custom harness to the cart, you will be asked to fill in the lengths of the various leads.

Q: Can the GTX 345 display traffic on a Dynon D180?

The FlightDEK-D180 has no provisions for displaying traffic or weather.

Q: Das the GTX345 with GPS (P/N 010-01216-41) come with the GPS antenna included?

The kit with GPS (PN 11-14177 or 11-14178) includes a GA35 antenna.

Q: IF I buy the GTX345, part #11-14177 (transponder+GPS), what GPS antenna do I have to buy? Can you specify a part number for the GPS antenna? Do I also need a second, standard transponder antenna installed?

The GTX 345 with GPS comes with the GA 35 antenna. You will also need a standard transponder antenna.

Q: I am interested in installing the GTX 345 with a GTN 650 and aera 796. I also have foreflight on my iPad. Will the GTX 345 display weather and traffic on all or do I have to purchase connext? can this be hard wired (except iPad) or does it bluetooth to all? Will I need a seperate GPS antenna or will the GTN 650 antenna be enough ?

The GTN 650 comes with a GA 35 WAAS GPS antenna which covers the requirements for the WAAS GPS source on the GTX 345 end. The GTX 345 has a built in bluetooth module that will allow you to pair to the 796 and iPad. If you want to hardwire the 796, you'll need the power data cable found under p/n 11-10044. The GTX 345 will receive ADS-B in information providing traffic and weather data to the 796 and iPad.

Q: If I connect the GTX 345 to the GTN 650 will I still need an encoder? If I do will I be able to use my existing encoder (narco AT 155). Is an encoder still required if you meet ADS B requirements?

Yes, you need an encoder to be hooked up to your GTX 345. It is recommended that you either use a RS-232 encoder or the Garmin altitude encode designed for the GTX 3x5 series. This can be found under part # 11-14162.

Q: Will the Garmin GTX 345 connect with my Garmin 696 to display weather and traffic?

Unfortunately not. The 696 will not interface with the GTX 345.

Q: Is the GTX 345 compatible with the G3X display? Meaning, will the GTX 345 provide ads-b in to a G3X display? Can the G3X displays integrated transponder controls control the GTX 345?

Yes, although, it will not communicate on the canbus. The GTX 345 will need to communicate with the G3X screen via an RS232 data line.

Q: Can the Garmin GTX 345 with GPS interface with JPI EDM 900 for fuel needed to destination calculations?

Yes, the GTX 345 can interface with the EDM 900 for fuel to destination. A recent software update enabled RS-232 GPS communication to additional devices which would be a compatible input for the EDM 900.

Q: Will the GTX 345 (GPS) work with the G3X-GDU 370/375 ?

The GDU 370/375 is an older G3X screen and does not support this transponder for ads-b out. With this screen system you will need the GTX 23 ES plus the GPS 20A and GA35 WAAS antenna.

Q: Can I replace my existing GTX 335 / GTN 650 combination with a 345 by just "plug and play" or is there any hardware change?

No. The GTX 345 is not a slide-in replacement for the GTX 335, you will have to mount a new rack and new harness.

Q: Can the Garmin GTX345 be programmed through the unit iteself or do you need Garmin software on your laptop to program it? (such as the Garmin install tool)

This unit can be configured on the display itself or it can be configured through a computer running the config tool. It can do both.

Q: I understand the 345 will display on an i pad via bluetooth. However, I am an Android user. Will the 345 display on my Tablet similarly to the display on an i pad. If so what additional resources are required, ie subscriptions, hardware, etc?

Per the manufacturer, The models below with Android version 4.4 (KitKat) and above are supported.
Google Nexus devices
Samsung Galaxy devices

Q: Will the Garmin GTX345 allow me to transfer flight plans from Foreflight or Pilot to my GNS 530 WAAS?

You will need the Garmin Flightstream 210 to transfer flight plans to the GNS 530W.

Q: If i install a GTX 335 without the GPS Antenna, do i need the GDL88 or an other GPS Source?

If you do not install the GPS antenna, you will need to use a WAAS GPS source in order for the transponder to function properly.

Q: I would like to know: what difference there is between buying 11-14175 and 11-09701 or buying 11-14177?

Part # 11-14175 does not have the input to connect the antenna directly. 11-14177 can connect to the antenna directly. if you order 11-14175, the WAAS GPS signal will come from a WAAS GPS panel mount unit.

Q: If I mount a GTX345, do I need any kind of software or hardware in order to view traffic infos on my GTN650 display?

The GTX345 comes preprogrammed with ADS-B in. As long as it is installed properly, you will be able to see weather and traffic information on your GTN.

Q: Will the GTX-345 be able to display TIS-B traffic and FIS-B weather on a Garmin G300 display (Cessna 162 Skycatcher) ?

Per Garmin, no, this will not work.

Q: Does this GTX 345 have a TSO tag? Is the unit TSO from Garmin?

Yes the GTX 345 is FAA TSO approved. There is a data plate on the side of the transponder.

Q: If the GTX-345 replaces a Garmin GTX-330, do the rack and cables need to be replaced, and if it is connected to a NON-WAAS Garmin GNS-430, does a second different GPS antenna need to also be installed? Can the ADS-B traffic from the GTX-345 be displayed on the GNS-430, does the GTX-345 adversely affect the present TIS-A display on the GNS-430 in any way? Can or how does one display weather information with only having the GTX-345 and GNS-430 (non-WAAS).

Yes, this will require a new install. Also, because the GTX 345 requires a WAAS GPS signal, the WAAS antenna will be required. An option that may be available, depending on the serial number is upgrading the GNS 430 to have WAAS and then get 11-14175 which is the GTX without GPS and use the now GNS 430W to feed the GPS signal.

Q: Will the GTX 345 with gps display ADSB IN on a 530 Non waas?

Per the installation manual Rev.14, this transponder does not list the GNS530 as an approved display for TIS.

Q: Can the GTX 345 with GPS send a GPS input to an ELT?

Per the manufacturer, yes, the GTX 345 can provide GPS data to the ELT.

Q: If i buy new Garmin 175 010-01822-50, which 345 model number is correct to combine with it? In order to have everything needs without problem for connection for ADS-B And there is any antenna o connector to add that doesnt came with gps175kit and 345kit? Thank you

You can purchase the WAAS GPS version for redundancy as a backup GPS or you can get it without GPS and depend on the GPS175 for that data.

Q: What transponder antenna does the GTX 345 requires for a fiberglass composite aircraft?

The recommended antenna would be the CI 105 11-17965.

Q: Will the GTX345 interface with a GTN625?

Yes, you can interface these two units.

Q: Does the unit only version come with mounting rack, connectors and backplate?

Yes, it will include these items.

Q: Does the part number 010-01216-46 include the GA 35 GPS antenna?

No, this unit does not include the GA35 antenna. This one does not have the built in GPS receiver and requires a panel mount WAAS GPS for its signal.

Q: I currently have a GTX330 ES, GTN 650, and Dual G3X - interfaced to GDL50R for ADSB. Will the GTX 345 replace my GDL50R and GTX330 ES providing ADSB data to both the GTN 650 and the G3X?

Yes, it is capable of doing so.

Q: I have a Garmin 400 WAAS interfaced with my GTX 330es and my GRT HXr EFIS. This configuration works beautifully for ADSB Out and TIS-!. I assume replacing my 330es with a GTX 345 would be a simple plug-n-play with maybe some mods to my wiring.

Changing to the GTX 345 would require changing the tray and modifying and adding wire. It will not be plug and play as the tray is different.

  • Previous
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • Next

View in Catalog

View Image View in Catalog
Question About: Garmin GTX345 Digital Transponder For Experimental Aircraft
Email:
Your Name:
Question:
Submit
Review Product: Garmin GTX345 Digital Transponder For Experimental Aircraft
Email:
Your Name:
Rating:
Comments:
Submit
Contact

Toll Free: 877-477-7823
Customer Service: 800-861-3192
Avionics: 800-826-3160
Fax: 800-329-3020

Location & Hours

West - Corona, CA
Southwest - Chandler, AZ
Central - Fort Worth, TX
Midwest - West Chicago, IL
Northeast - Harrisburg, PA
East - Peachtree City, GA
Alaska - Wasilla, AK
Canada - Brantford, ON

Help
  • Contact Us
  • Dealer & Wholesale Program
  • Online Bill Pay
  • Payment Information
  • Price Match Policy
  • Privacy Policy
  • Quality Control
  • Return / Core Policy
  • Shipping & Delivery
  • Terms & Conditions
Company Info
  • About Us
  • Aircraft Spruce Print Catalog
  • BT-13 Restoration
  • Customer Testimonials
  • International Reps
  • Mission Statement
  • Poberezny Estate
  • President's Message
  • Sponsorships
  • The Spruce Team
Resources & Partners
  • 2022 Airshows
  • AOPA Info & Links
  • EAA Info & Links
  • EAA Hints for Homebuilders
  • EAA Project Give Flight
  • Find a Flight School
  • Fly-Ins & Events
  • Homebuilding How-To Articles
  • Military Discount Program
  • Popular Search Terms
Shopping Tools
  • Aviation Gift Guide
  • Avionics Harness Shop
  • Bargain Bin
  • Current Promotions & Rebates
  • Custom Hose Assemblies
  • Deal of the Day
  • Gift Cards
  • New Products
  • Special Order Request
  • Wishlists
Subscribe to our weekly newsletter
  • LinkedIn
  • Twitter
  • Facebook
  • Instagram
  • Youtube
California Privacy Rights - Exercise My Privacy Rights
By using this website, you agree to our Terms & Conditions and Privacy Policy
Copyright ©1995 - 2022 Aircraft Spruce. All rights reserved. Prices subject to change without notice. Invoice currency USD.
Close Icon
Subscribe to our weekly newsletter New product announcements, promotions, discounts, & events.