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03-31-2016, 07:38 AM
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Join Date: May 2012
Location: Athens, GA`
Posts: 22
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Quote:
Originally Posted by g3xpert
Hello MrMorden,
Yes it will. The pitch/roll offset calibration for the GTX 345 attitude sensors is a very simple operation after you have it installed in your panel.
Thanks,
Steve
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Great, thanks Steve!
Andy
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04-07-2016, 08:53 AM
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Join Date: May 2012
Location: Athens, GA`
Posts: 22
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Steve...
I currently have a GTX 327 installed in my Flight Design CTSW. If I ungrade to a GTX 345:
1) The GPS antenna is included (GA-35 IIRC), correct?
2) Could I use my existing Mode C antenna for the transponder component?
3) Do I need a specific ADS-B antenna? If so, can you point me to a Garmin model?
4) Will I need a new tray? Included?
5) Is the altitude encoder included, will the one I'm using with the GTX 327 work, or do I need to buy one? Model?
6) I am planning to display traffic/weather on my iPad, but I also have a 496 installed...can traffic/weather display on a 496?
Thanks!
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04-07-2016, 08:06 PM
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Join Date: May 2012
Location: Athens, GA`
Posts: 22
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Is this thing on?? 
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04-07-2016, 08:22 PM
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Join Date: May 2015
Location: Western Kansas
Posts: 121
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Quote:
Originally Posted by MrMorden
Steve...
I currently have a GTX 327 installed in my Flight Design CTSW. If I ungrade to a GTX 345:
1) The GPS antenna is included (GA-35 IIRC), correct?
My GTX 345 was ordered with the antenna.
2) Could I use my existing Mode C antenna for the transponder component?
3) Do I need a specific ADS-B antenna? If so, can you point me to a Garmin model? I used my existing transponder antenna.
4) Will I need a new tray? Included?
My tray was included but is a little less than 2" deeper than the GTX 327
5) Is the altitude encoder included, will the one I'm using with the GTX 327 work, or do I need to buy one? Model?
6) I am planning to display traffic/weather on my iPad, but I also have a 496 installed...can traffic/weather display on a 496?
Thanks!
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That is all I can help you with at the moment. Still working on some issues with the rest of the system.
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04-07-2016, 09:56 PM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by MrMorden
Steve...
I currently have a GTX 327 installed in my Flight Design CTSW. If I ungrade to a GTX 345:
1) The GPS antenna is included (GA-35 IIRC), correct?
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The GTX 345 with GPS bundle includes the 010-01216-41 GTX 345 with built-in GPS and installation kit (complete with rack and connector kits) and the 013-00235-00 GA 35 WAAS antenna. You would need to verify with your dealer that they are selling the bundle with antenna, and not just the unit without antenna. I checked with one of the online dealers who sells this system and they confirmed they were selling the bundle with antenna even though this wasn't clear on their website.
They can also sell just the unit without antenna if you already have the antenna.
Quote:
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2) Could I use my existing Mode C antenna for the transponder component?
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More than likely. There is a list of compatible transponder antennas in the installation manual.
Quote:
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3) Do I need a specific ADS-B antenna? If so, can you point me to a Garmin model?
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The GTX 345 does not require a separate ADS-B antenna. The single transponder antenna both provides ADS-B Out (1090 Mhz) and ADS-B In (978/1090 Mhz).
Quote:
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4) Will I need a new tray? Included?
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Yes, the bundle includes the required new tray, backplate, and connectors.
Quote:
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5) Is the altitude encoder included, will the one I'm using with the GTX 327 work, or do I need to buy one? Model?
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The altitude encoder that worked with your GTX 327 should work.
The optional 011-03080-00 built in altitude encoder is also available for a list price of $279. If you have ever had to calibrate several altitude points for an encoder against an altitude test set, you will like the one integrated with the GTX 345. The front panel display and controls make this really simple. Just select a pressure altitude, set the test set to this altitude, and adjust the encoder reading to match. A minimum of 3 calibration points is required.
Quote:
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6) I am planning to display traffic/weather on my iPad, but I also have a 496 installed...can traffic/weather display on a 496?
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If you install a GTX 335 (not GTX 345), it supports TIS-A traffic using the "TIS-A OUT FMT" RS-232 output format which supports TIS-A traffic on GPSMAP 396/496/695/696 (but not weather).
If you install a GTX 345, you cannot connect a 396/496 since the GTX 345 only supports ADS-B traffic and weather, and the 396/496 do not support this interface. The aera 660/795/796 support full ADS-B traffic and weather when used with a GTX 345 or a GDL 39/39R.
Thanks,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
Last edited by g3xpert : 04-18-2016 at 11:06 AM.
Reason: TIS-A supported only on GTX 335
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04-08-2016, 07:40 AM
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Join Date: May 2012
Location: Athens, GA`
Posts: 22
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Thanks Steve, exactly the info I need!
I'm considering replacing my 496 with a 660 at the same time, but I need to wait until the Airgizmos dock is out for it. Airgizmos states that dock will be a direct replacement for my 496 dock, with the dimensions and mounting being identical.
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04-21-2016, 03:27 PM
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Join Date: Nov 2007
Location: Cary, N.C.
Posts: 1,216
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Questions for the g3xpert:
I will be installing the GAE pressure sensor module to the back of the GTX 345. Section 3.10 of the Installation Manual talks about the input source priority for different input devices when attached. However, no mention is made if the GAE is attached. The GAE will be the only pressure sense device that will be used in my aircraft. See also the list of altitude input devices in Section 5.5...no mention of the GAE.
Section 6.8 talks about sensors, and Altitude Source 1 and 2. Again, the GAE module is not listed.
In this section is Figure 6-25. Internal ALT Encoder Installed (yes / no). Will answering yes at this point eliminate any need to be concerned with the above questions?
Again, in Section 5.5, the possibilities for altitude resolution is either 25 feet or 100 feet. Which is selected (automagically?) when using the GTX option?
Thanks again...
__________________
Noel
RV-6A N6NF
tip-up
flying
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04-21-2016, 05:28 PM
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Join Date: Sep 2009
Location: Roy, UT
Posts: 56
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I don't have a G3X display. Until I upgrade or add a G3X GDU could the GTN 650 alone work with the GTX 23 for the ADS-B 2020 mandate? With the installed GTX 327 the GTN 650 can remotly control the Transponder, is it the same with a GTX 23? The dealer gave me the impression that the G3X system/display is required.
__________________
Kent Wright, UT
N216KW
RV6
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04-21-2016, 06:12 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,686
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The GTX23ES can only be controlled by a G3X system, the GTX33ES can be controlled by the 650/750 but its about 2K more than the 23 
__________________
Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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04-21-2016, 06:14 PM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by noelf
Questions for the g3xpert:
I will be installing the GAE pressure sensor module to the back of the GTX 345. Section 3.10 of the Installation Manual talks about the input source priority for different input devices when attached. However, no mention is made if the GAE is attached. The GAE will be the only pressure sense device that will be used in my aircraft. See also the list of altitude input devices in Section 5.5...no mention of the GAE.
Section 6.8 talks about sensors, and Altitude Source 1 and 2. Again, the GAE module is not listed.
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Please contact us at the email shown below and we will make sure you have the information relevant for your installation.
Quote:
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In this section is Figure 6-25. Internal ALT Encoder Installed (yes / no). Will answering yes at this point eliminate any need to be concerned with the above questions?
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Fortunately, the setup is quite simple with the GAE attached to the back of the GTX 345. Steps 1 and 2 are actually optional (may be left to NONE) since the GTX will automatically use the GAE if enabled.
1. Set ALTITUDE SOURCE 1 to ALT ENC
2. Set ALTITUDE SOURCE 2 to NONE
On the Internal Alt Encoder Installed page:
3. Set INSTALLED to YES
4. Set CEILING to maximum altitude you wish to use the GAE up to 30,000 ft.
5. Set the number of TEST POINTS to a minimum of 3. You will connect a test set to calibrate the GAE to match your calibrated altimeter at each of these pressure altitudes.
Quote:
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Again, in Section 5.5, the possibilities for altitude resolution is either 25 feet or 100 feet. Which is selected (automagically?) when using the GTX option?
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Yes, you are correct. 25 ft altitude reporting is automatically used when the GAE is installed.
Thanks,
Steve
__________________
Garmin G3X Support
g3xpert@garmin.com
1-866-854-8433 - 7 to 7 Central Time M to F
Please email us for support instead of using Private Messaging due to the limitations of the latter.
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