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03-21-2016, 03:03 PM
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Join Date: Sep 2005
Location: Maple Grove, MN
Posts: 2,334
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GTX 345 to 696?
Question:
Any chance of doing a direct wire to a 696 for traffic and weather?
Thanks -
__________________
Alex Peterson
RV6A N66AP 1700+ hours
KADC, Wadena, MN
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03-21-2016, 06:49 PM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by AlexPeterson
Question:
Any chance of doing a direct wire to a 696 for traffic and weather?
Thanks -
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Hello Alex,
As you probably know, the 696 communicates over RS-232 to the dual frequency GDL 39 ADS-B traffic and weather receiver.
Fortunately, the GDL 39 does everything the GTX 345 dual frequency ADS-B receiver does. The GTX 345 doesn't use the same traffic and weather protocol as the GDL 39, and the 696 can't communicate with the GTX 345.
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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03-21-2016, 08:08 PM
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Join Date: Sep 2005
Location: Maple Grove, MN
Posts: 2,334
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Quote:
Originally Posted by g3xpert
Hello Alex,
As you probably know, the 696 communicates over RS-232 to the dual frequency GDL 39 ADS-B traffic and weather receiver.
Fortunately, the GDL 39 does everything the GTX 345 dual frequency ADS-B receiver does. The GTX 345 doesn't use the same traffic and weather protocol as the GDL 39, and the 696 can't communicate with the GTX 345.
Thanks,
Steve
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Steve - thanks.
__________________
Alex Peterson
RV6A N66AP 1700+ hours
KADC, Wadena, MN
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03-25-2016, 10:22 AM
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Join Date: Oct 2011
Location: Pilot Hill, CA
Posts: 845
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Garmin Experts (Steve),
I'm trying to decide between these two options to gain 2020 compliance:
1. Garmin GTX 335 All-inclusive 1090 MHz ADS-B ?Out? Transponder ($2,995 retail) connected with a Garmin GDL39R ($799 retail). Approximate total = $3,794.
vs
2. Garmin GTX 345 All-in-one Transponder Solution for ADS-B ?Out? and ?In? ($4,995 retail).
A retail Garmin dealer indicates the following:
Garmin GDL39 - "Note 2: GDL 39 can only receive ADS-B information in the USA."
https://www.aircraftspruce.com/catal...lickkey=856371
Here are my questions:
In the retailers reference to the GDL39. Does ( GDL 39 can only receive ADS-B information in the USA) it mean when flying outside of the USA the GDL39R will not provide traffic alerts to a compatible Garmin device (i.e. Garmin Pilot) for other aircraft within proximity using a 1090 ES transponder?
Does the Garmin GTX 345 allow the user to receive ADS-B information outside of the USA provided that country has the ADS-B infrastructure is in place and supports the territory you're operating from? (For example, some locations in Canada, Mexico and/or the Bahamas').
I am trying to understand the differences and the similarities between the GDL39 ADS-B dual receiver and the dual receiver ADS-B In receiver that lives inside the GTX345.
Are there any differences?
Thanks again!
__________________
Charlie
RV-8
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03-25-2016, 11:24 AM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by Chkaharyer99
Garmin Experts (Steve),
I'm trying to decide between these two options to gain 2020 compliance:
1. Garmin GTX 335 All-inclusive 1090 MHz ADS-B ?Out? Transponder ($2,995 retail) connected with a Garmin GDL39R ($799 retail). Approximate total = $3,794.
vs
2. Garmin GTX 345 All-in-one Transponder Solution for ADS-B ?Out? and ?In? ($4,995 retail).
A retail Garmin dealer indicates the following:
Garmin GDL39 - "Note 2: GDL 39 can only receive ADS-B information in the USA."
https://www.aircraftspruce.com/catal...lickkey=856371
Here are my questions:
In the retailers reference to the GDL39. Does ( GDL 39 can only receive ADS-B information in the USA) it mean when flying outside of the USA the GDL39R will not provide traffic alerts to a compatible Garmin device (i.e. Garmin Pilot) for other aircraft within proximity using a 1090 ES transponder?
Does the Garmin GTX 345 allow the user to receive ADS-B information outside of the USA provided that country has the ADS-B infrastructure is in place and supports the territory you're operating from? (For example, some locations in Canada, Mexico and/or the Bahamas').
I am trying to understand the differences and the similarities between the GDL39 ADS-B dual receiver and the dual receiver ADS-B In receiver that lives inside the GTX345.
Are there any differences?
Thanks again!
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Hello Charlie,
Good questions.
Quote:
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Does (GDL 39 can only receive ADS-B information in the USA) it mean when flying outside of the USA the GDL39R will not provide traffic alerts to a compatible Garmin device (i.e. Garmin Pilot) for other aircraft within proximity using a 1090 ES transponder?
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This vendor is probably referring to the fact that the ADS-B ground station network and FIS-B is something unique to the U.S. You should see any 1090ES aircraft air-to-air anywhere in the world, similar to how you can now see every airliner that goes by (since they are 1090ES). The GDL 39 will receive traffic and weather from any of the U.S. network of ground stations, including the stations planned for Mexico.
Quote:
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Does the Garmin GTX 345 allow the user to receive ADS-B information outside of the USA provided that country has the ADS-B infrastructure is in place and supports the territory you're operating from? (For example, some locations in Canada, Mexico and/or the Bahamas').
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Same answer as for the GDL 39.
Quote:
I am trying to understand the differences and the similarities between the GDL39 ADS-B dual receiver and the dual receiver ADS-B In receiver that lives inside the GTX345.
Are there any differences?
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From an operational point of view, there are few differences between a non-certified GDL 39 and a certified GTX 345. The only differences are driven by the minimum operational performance standards (MOPS) called out by the TSOs that the GTX 345 must meet. For example, the certified ADS-B receivers are required to reject some non-compliant traffic targets, such as those that are transmitting SDA=0. The GDL 39 does not adhere to that limitation and will essentially provide the connected display with all traffic targets regardless of their compliance status.
Obviously as we get closer to 2020, more aircraft will be providing compliant ADS-B Out, so the traffic differences between the two should be indistinguishable.
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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03-25-2016, 12:31 PM
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Join Date: Aug 2008
Location: Texas, Fort Worth
Posts: 1,237
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Charlie, do you have a certified GPS now in your RV8 to feed lat long to the 335? If not then the 335 with the GPS is $3795. Gets close to a wash with an easier install. 
__________________
John
RV12 N1212K
Flying Since June 2010
1020 Hours as of 9/30/2017
Johnrv12@icloud.com
RV14 Wing, arrived and building at Rdog's new Hanger at 16X
S/N 140014
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03-25-2016, 06:29 PM
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Join Date: Oct 2011
Location: Pilot Hill, CA
Posts: 845
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Quote:
Originally Posted by g3xpert
Hello Charlie,
Good questions.
This vendor is probably referring to the fact that the ADS-B ground station network and FIS-B is something unique to the U.S. You should see any 1090ES aircraft air-to-air anywhere in the world, similar to how you can now see every airliner that goes by (since they are 1090ES). The GDL 39 will receive traffic and weather from any of the U.S. network of ground stations, including the stations planned for Mexico.
Same answer as for the GDL 39.
From an operational point of view, there are few differences between a non-certified GDL 39 and a certified GTX 345. The only differences are driven by the minimum operational performance standards (MOPS) called out by the TSOs that the GTX 345 must meet. For example, the certified ADS-B receivers are required to reject some non-compliant traffic targets, such as those that are transmitting SDA=0. The GDL 39 does not adhere to that limitation and will essentially provide the connected display with all traffic targets regardless of their compliance status.
Obviously as we get closer to 2020, more aircraft will be providing compliant ADS-B Out, so the traffic differences between the two should be indistinguishable.
Thanks,
Steve
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Thanks again Steve for helping me understand so I can make a more informed decision.
__________________
Charlie
RV-8
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03-25-2016, 06:35 PM
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Join Date: Oct 2011
Location: Pilot Hill, CA
Posts: 845
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Quote:
Originally Posted by Jetguy
Charlie, do you have a certified GPS now in your RV8 to feed lat long to the 335? If not then the 335 with the GPS is $3795. Gets close to a wash with an easier install. 
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John,
I have a Garmin 430 W as a certified position source. I like it too.
I originally was going to get a Garmin GTX 330 ES to replace my GTX 327.
__________________
Charlie
RV-8
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03-31-2016, 07:00 AM
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Join Date: May 2012
Location: Athens, GA`
Posts: 22
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AHARS?
Hey G3Expert...
Looking through the GTX 345 Pilot Manual, I see reference to an AHARS unit built into the 345. Will the 345 push attitude info out over Bluetooth to an iPad running Garmin Pilot, to provide attitude reference in the Synthetic Vision feature of the app?
Thanks.
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03-31-2016, 07:16 AM
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Join Date: Sep 2010
Location: Olathe, KS
Posts: 2,885
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Quote:
Originally Posted by MrMorden
Hey G3Expert...
Looking through the GTX 345 Pilot Manual, I see reference to an AHARS unit built into the 345. Will the 345 push attitude info out over Bluetooth to an iPad running Garmin Pilot, to provide attitude reference in the Synthetic Vision feature of the app?
Thanks.
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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
__________________
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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