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New Product Announcement: GPS 175/GNX 375 IFR Navigators (3/25/19)

It looks like the Bluetooth supports interfacing to iOS running FltPlan Go, but not ForeFlight. Is that correct?

Ahh man WTF with the proprietary stuff. Garmins, Achilles heel. Keeps more people from buying than it keeps in house I'm sure.

Love garmin stuff, hate being told what to use!
 
It looks like the Bluetooth supports interfacing to iOS running FltPlan Go, but not ForeFlight. Is that correct?

Steve,

In researching the same question, and reading Garmin online documentation, and Levi's OP, it says this:

"Built-in Connext® cockpit connectivity gives you the benefits and efficiencies of a wireless cockpit, enabling wireless flight plan transfer via Bluetooth® to and from compatible portables and mobile devices running the Garmin Pilot™ and FltPlan Go applications. GPS position information and back-up attitude can also be used by compatible products. Because the GNX 375 has an integrated ADS-B transponder and dual link ADS-B In, pilots can also view ADS-B traffic and weather on compatible mobile devices and portables."

So the flight plan transfer function works with the products specified in the quote, and I am hopeful that TIS-B and FIS-B will bluetooth to ForeFlight on an iPad. Levi, could you confirm?

I have another phased upgrade question, that I'll break out in another post below.

Thanks for the great info!

Cheers,
Bob
 
Ahh man WTF with the proprietary stuff. Garmins, Achilles heel. Keeps more people from buying than it keeps in house I'm sure.

Love garmin stuff, hate being told what to use!

If they allow it with the older products, why would they not with these new ones? What Foreflight decides to support is up to Foreflight....
 
I'm ready to buy a 375 hope it supports adsb over foreflight, fly q all the top brands of EFBs
I use fly q it's cheap and works very well in my opinion but I like my options to be OPEN. Never bought a stratus because it locked out fly q.
 
The question I alluded to above concerns a phased panel upgrade and interoperability during and after the upgrade.

Current panel includes a Dynon D100 networked to a D-10A, AP-74 and 2 SV-32 servos. Radio stack is all Garmin: GMA-340/SL-30/SL-40/GPS396. Nice 20th century VFR set up. :p

A few projects (new wings and speed mods) compete for time and $ for a full panel upgrade. With planning, the 375 may offer a phased upgrade path to get ADS-B Out compliant and get the benefits of ADS-B In, but I want to ensure a few items work in phase 1, and keep the phase 2 transition somewhat simple.

Phase 1 would be replace the 396 with the 375. Stack would be 340/375/SL-30/SL-40.

My first question here is, will the 375 provide steering commands (HDG/TRK/NAV) to the legacy Dynon equipment I have now? Is there a serial output for this data from the 375, such as the 396 puts out (via the blue wire to pin 22 on the D100)? Early research indicates I would need to add an HS-34 to the panel, to provide the 429 data to the legacy Dynon network and AP. If Levi, Dynon (or maybe the local pro Brian C) could confirm, it would be much appreciated.

Second, related question, is there a remote-mounted 429 box (from Dynon, Advanced or Garmin), that could be used instead of the HS-34, that would provide the data to the legacy Dynon network and AP, that I could then use in phase 2 of the upgrade, when I'll replace the main D-100 PFD with a G3X Touch, AFS 5500, or Skyview? Early research indicates the legacy Dynon/HS-34 protocols are different from the next gen Garmin, Advanced and Dynon 429 modules, but just want to check with this group of pros.

Final panel would have the same radio stack, with a new PFD and AP controller (Garmin or Advanced/Dynon, to match the PFD), and the D100 would become the right seat EFIS.

Thanks for any answers/info!

Cheers,
Bob

Pictures to help visualize:

Current:
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Phase 1:
TGrvjvqf_hTmrDDllg6k4dhDi_l2W93h0mqQwktcoUBK6LljRTYJscXpp-eIFExbtolYm34OfslCkPjnGdUwB1eg8gGae5TZmq9AgxGCcz2exJjwKurqJDbelSUBfty_Obf2_45p7oyQSg_UV3W_3ZS84i_Fj5CngEgbJd2qAKJkHrOcfICBkF8lFz6N9Z23pXCIKVJNUKRpzJFCxKxOeGHqLA1gGJaitFsAE9SNDU1-Gf-BsAAahJHTY4_Xv9O3-059TfTz0hIpitwx4u2RBZV0mB2I8qL2diZG5AhUKdsLr1VpljruNQbn0PEYDB0tLB1ZCb90kDul0rfsKa7ea80BlI_-J9Pbe8hrQdKZ-IVQCncok15PkizLPhApULZCJgCIIbT7RNgLz-9kyUvmKtK8CEXbn7skev4HGVqA83_80chfeMGNtFFmJN0ARs62WVMvO_LiYdVLJIu2Cn4wrQxnysDnsxLya8IEb31aT5mezgK8kupGWYHZ4RF4so89oiWVxKzDMmxzyuvoNxzFSF1q1kUC_3VtxI1rRZiwjOGXL8pgOLPkuuLJTXjQyyUc-r6Bs1zlgKX7Owi_gnIyrvBwcxtQBF4NS7OEowAlk9GYt-0vE0Ntz03UJM3ZYrzjOOP7SIVghmOr5GLmHlOVrj79jlmQaTeA0P8EA5dd5_qYw7oz0AOeXAPIoQ6JIjUQh7WlcufTB5X417UwBiRv3EMG=w1349-h401-no


Phase 2 Garmin PFD Version (could also place a G5 on the right)
lsv4d6ru68pKbtyuhFe9kHyJUeVBMyyb5AlDvjYV3lutTRiUNPxaKLpJ6RlfaGWDbpDsEke6xXGHj-FLA70t9Ri6bLwCfurHSnMbwut-ffGGC78MCDj87RUzVTfmdlp1k4QPBCDR_e2NhYG4JJ-ZYjLk9jrFI9zpPWabEd491hU_RjcI6wrWBti0a2JSDwcr3g2T9B-JkqcbM13MVKSpu0jqeQmbwnjlpGJaMWzCCT_ud_aWkhDI6IKOupMZ-JsoO3os5BKvEbt3rtYyrgSRWbyw8u-jOcN2Ubp6af9iZ4m6_cQ9hl9LLAbUHU-i8O8Ms4101rbiGpaASIPZQJvpdC3IIbdTi9UH_uDMKoHZyJDvDv9BaB8SFpxno3atqzlP3lnxzZn9LjjjalMWx1mdostWC48B_IjmQeVlNVn-Sbvgg-Y0z31sp2dpf4jyoelcCHzjLrPwGkchp6PW66hSsSeQo7OGIuNEMDzYI4D1xmRHtMadxHIlz5utg3K3u3xN33V4bDv-FtQyrgQAP5wIS5onYcHjf9q6t02j52nquAQUGEi93jmhpRdVKNq3HKVe1FFPPO3gnHujXwdogUiflcWNe2GWtjKsuMTi0WbAx3ZdAsej5spN5HP1L-eWRHs36c8sfcK7bJpwj8oaWEuilo878ftyzkyeDFpZzKpEyPzHTBuAYX2CWwXjwFPR_AuuZ4Kgs5LTbn4XMMhbRwII6zau=w1343-h400-no


Phase 2 Advanced PFD Version
lNRIJWBsP-MeX7K2SqY9XLT3NKTl4uqtbiBaXaFdVs568QZ_RpA9xycvvUjcG1T7HO83jUORoWZ1M7Xw-Nvo1z80ZORDiCHZoiavsvcmWZQPdJuMjsEWaAooGqxw3UVaonwFAivqYMXv3O6Kj2GiZMjfJ2dhKQvysLtDJ5aj2ws3CJlF9hOVvjRPhGXXU4JPuMuk8tCrtUvRkQE4NGrjumETbLINd90TPiYyzejnqD-HzdcZ08Y0oQeDWyodCTWu7P2bRr1GQGn9AFq0UtWXn14lQNmLb08pO3EvQ9i11eb4BAZpASGM5T6f0NXeaYS-Mu5U33f7Jm2g-_bQJhYK-6vzLOQxjA0HdZg8di6zrNmhMOzXlDEBKNRu82eX3Jq1BbUolVDs8xB8lo5QaRftm-l34sKZGDEMdG5FAsVKrIXd0dblQwhv0TFxvB8dLm1HIzjjIv_zzTfWsG2p18neKYKnIJxaf3N7uzvnSXD8m-vdLfa6y1pWw6vkPFeiARni16avZUzF-jl2uvv1_MeClwudY8koW8-d180no_HcEKGMXBgBK49ZVbyjwLVUsR5k_UZk99ohDMi8oJvBBBSusC9tE90unzs6yu6X820AsSf4qPxHy_zZ4lw_VTkWyIeTZmkt1UrD126IVZIhNBVJfl9rFlN2zS_-cbYdZMSKR0v5RnrHZEEenCWsatvuI3yoWIn3X0ok3ZZfGR1CsuHvG-IF=w1341-h399-no
 
Could someone with a GNS 430W please measure the actual screen height on the 430?

Steve,

Did a little more digging:

650 screen: 4.46" x 1.98" (4.9" diag)

430W screen: 3.3" x 1.8" (doesn't give diag, but Pythagorus says that's 3.76")

375 screen: Garmin says 4.8" diag but gives no screen w x h. If my scale modeling in excel works, it looks to be about 4.52" x 1.6", so a .2" to .4" loss in vertical on the map (along the track line).

Here is a side by side comparison from that model (h x w) should be close to scale.

1Sh0gtnQ2oVB8o2N1iEeZud_eBogRHs7ec_diRzS-h4vQ-Y8J3xvbQJbNg53Qb4873qq6FVdJ_D5fzy-3iglC04tq9HX51H2BumayM97DIxl88YQCFC7VTdiMeqvcjga90hg5ZEqjPwpZibUszq48SSLciOxV0U5MRxjn1LLTO73YV2NArKBP9mFvwtnDIjVAtnFvVKUTJAoMHilu3jWUeTj1sxAqgAMwFbpakn6TJi3jE1c8fYbJwLLp4QADgAeEjgr-T0Zsu3G0vflakSdY9-2D-c3XUM0iJVAPAv-WsDC3d0udPMUC9xbFv_nADTQ6EAXOTrgFLVpj3qVz4SmltS5SY-UDuFBgbNMtt6YuTnt3Z_1siwqf4ayJw7IWZxCMLLV5iQnqbp3wE6OWMw3so3NKBMYC6WtdjPE1h21seF2ZnF4Kx6Y2IvAGONtWmTApx3Lry_iJzPM1XJqC-Ov4nTc8EpPOtI8EMqtCNFnr7XHqzuPzDDc9Mgcp-RVB-0k1HnWepf3o8AH5DJF9lwAHTxnSkNQzkQLMFJT2H13ydgGJtr6KqTHf23l_10UCt5FSzcHwTWsDOICLoaDL0PW3YWWyWVJt7Zm8vDwkpLmUtQMhzqop7fxFNqdVg0qw9urxSKFkGHNGnxpMtU9fu2pklj_BmQrvAz_192oKCjQ42k6PV2gnxhmFjdiC33ARu4ogiTdZpsK0knG2ybyjxpESTC9=w615-h98-no


Cheers,
Bob
 
So, other than comm/Nav radios... what does the 175 do/not do compared to the GTN 650? (Are the radios what make the gtn650 cost twice as much?)

If all I wanted was an en route and precision approach IFR navigator.... is the 175 missing anything?
 
So, other than comm/Nav radios... what does the 175 do/not do compared to the GTN 650? (Are the radios what make the gtn650 cost twice as much?)

If all I wanted was an en route and precision approach IFR navigator.... is the 175 missing anything?
From watching the webinar given by Garmin it is my understanding that the only difference between this new 175 and the 650 is size of the screen and Nav/Comm.
 
So, other than comm/Nav radios... what does the 175 do/not do compared to the GTN 650? (Are the radios what make the gtn650 cost twice as much?)

If all I wanted was an en route and precision approach IFR navigator.... is the 175 missing anything?

Hello Jeff,

This posting that Levi made earlier probably does a good job of answering this question.

The new navigators do not allow you to enter altitude constraints in the flight plan the way you can with GTN 6XX/7XX navigators.

I have been flying with the GNX 375 for several months, and I like it a LOT! The GPS 175 is just as nice for those that don't also need an ADS-B In/Out 1090ES transponder.

The GTN requires you have the worlwide terrain database on the SD card in the unit, but the new GPS 175 and GNX 375 have enough internal memory that all the databases load inside the unit, including the terrain.

These units have a nice screen shot feature that I used for collecting these images. Just press the knob and the power/home button at the same time and it captures it to the SD card.

At $4,295 MAP for the GPS 175, and only 1.9 lbs, I think it is hard to beat for a homebuilt.

GTN 625
IAEEst8RApY33rTx34UplZOFbdj8oAAD_P84VQyecLWz0a23hKDS5BuqhI_CXD-Z8s-rhjPBA5QF2dcHTxGVkDPjH8VaGodTwZFD-niJbN-ovsXKr4bPREiqhli2HL3JrcL8oYQutAdY-8PoA9bKbyYLi-rUT9LgxHjRBNncMx1IIELoFE-6oIuUL100lo0iqSI6dSrXMA141OQDm214XPlnC0Cbb_Og7N1yicSpt-rHT3CagrLZvqy12bVLbfbG0pxq6SO0hxnCniGHUsSr_QgdKQGH3PHpOkLd7eWQaBEKoURMvDUDwqq0Dfn4DoCnLRwbR2JcMXi6_INAenkIF0wVlmqkFVliR54qAH1Y6L_si5p0QGrjlnV_UxVWohbYkQaZeD4SwzNQME0ygwjI4wN-HCXgjZBr-kbrhc5fbN5l3iELBPXRRvvXhzfhqsPvcgj2QkdZDzguhXF8BrhzXbD-M7dgd_7DWy6_xY3FWMlQEeAAFIGDrof-IXFlhpnW4nz_yTKtejms3B8S_LgrgnNQ8sNV5w9Ds4tuep8StSgBJoGhx7haW3Cm5okqb-r2d2Hcgq-eeaESeAUtfELlUtPOV32sUxVbkBxIpvSnMjPBlOtayPnB8Dns0kFxdqb5IQ4L9_pvEuySQAL_H1f45FQpdwWslpB3ZGBLdMVnuwg8xxc1mPN6JYtUeFo1JB6h9rFOnpq5cR-Pr0Qrf9yIFdvxQ7UvmlS7lhKCdvpu4z8_XUg=w720


GNX 375
EO3UeVGD9xJ93wyvSLVXtOaF2I-ITOF6MWa82VIr0jwsOVerrHOqatM1ZNgQ02DR8xEFM-eWMm2v8Sjo5JZncF8_EsW6bSsBSRlEVnFeGHdbpyVq4YBeNQTWsukB4avKTcNdcvPbGKZWehbzmv4dR2os3zF2_gQi1kdEPBV3a2sz1tSURWKek3wekiqCb5U2djRgckgbitiqwQPJYSxwtWZbeHiZGr0Ac-D58gVE2yI0Izj_Y2XCs0v1FiWNGwGzWPQbcn2QFEN4sTs_Scst32JEV3M_fWfF11y6TtNZLvDAzJQf6J1cak7ufFeRvgLR8JqxHB9XvnjdeL2S8X9GvO510LZ2Mk9pvKavZzNirZta3NEb-ePVaID24Dlalu38htSgF99GdfaJTR-5k9lj28Dm9lm8FBajxwtWCNoayA3eI3qQWhSSSjkyPPoWDyT6EyR8Ig4U2BfhmvUT5u42947zrOkkjDJqM_7os0hFqLmNDDMyc3_p0KqwD4SxWjh-Tnq42Wx-oJMdItRErkiGc7J0jDg43FtTmEj9s_kJnj92BVwzYmMaWveQ1vgW_8rNZoqROCjisJ2GTFFF6LGqtoe8LuNa_o55eM30hWtj9OZeE6x0j1dOni8COAbE2MKaqYkLLcsIf-BdOYLfUI9i4Cgw1Bi8hTRiBzXHEnt5uojJbbUXhDxqeIh-SS7h8H5qTnRxjqqPFdkMP3DvE7ggYEtFL68HtptpJlwpFPztM_3ks04=w720


GNX 375 Vectors to Final LPV
66e8fDtlb04cIxcNQjgf2N75QLivAmpzlrgqUFTVON8a_sj_nh3z46fsDm8R_CU9FPvLJdtvpy2In-15jN9StJzb5FmirOBJR3JnEC2EWcHvlDlZ3hs3O115KNzsrsjgzvqRV6T2VCRdAGD43KyM2c6ZBO2lztvRReniVPEg5A3KEDxRhMqLuEMsTeVIoahJSK8r2ZCz4lEsLYhCiVKzY1zoEjKTxlp_ikQfhwpvGHLijRlJtf3KW9hvSFiShfvYAjl15xFeeZfl1gNzKFsCQgwbvU69ofpYKipWKltV6EY2_naGQrrD0MJU9jUlACOoR1NdQzG1iQuc0LE3EP0rNIC9Q-gXy2bpDA_ImYMtXNdQGexHtd6oCOcaXOWdgb5WdLO1mkgTghSmhCM12Bi0O6cgkCH92l2Z0iEXW3yqFjWBROQyK_EoO37bqKB1bIst1VNDFbpyHp512zhYih-VdjDLqsNC_scALq-60lvFjKGjWweDawvQHWYaat0RGjozuL7M02tmG47cf3VPu6xR29FQDZ7ELEXNkpYMJX3s1qBs0UrjHrbGtsmqDFDufuqchMwyTuKpt5-kUp_0tqadgd6K2r5K6Kv6jEKJcG1H-lI5fvm75gKUCqnB8gTVVyVmUnj9ZiXFQyCoGo8gFhiJ0XqwM79OeUMhHsE0zoG91xZnsLW0D0DZt_Cjewq5p48nE0evDduwfzjxv2eRXokp33DNHfBrB9BtPlI-rYk0rLXTTzk=w720


Thanks,
Steve
 
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The GPS 175 should be compared to a GTN 625, as the GTN 650 has a built in NAV and COM which makes it a completely different product.

The level of performance and features is largely the same with a few key exceptions. The GTN works better when you have dual navigators as they will share flight plan with the other navigator. Also the GTN has VNAV and while the GPS 175 has VCALC. I haven't done a complete side by side comparison and there may be some other minor differences.

The GPS 175 also has a smaller display, but is still a very capable IFR navigator.

Thanks,
Levi
Please explain the difference between VNAV and VCALC. Will the GPS 175 give vectors to the approach, show the hold and the missed approach? And show the airplane geo referenced while shooting the approach, hold and miss?
Thank you
 
The new navigators do not allow you to enter altitude constraints in the flight plan the way you can with GTN 6XX/7XX navigators.

g3xpert - Is this likely to be a permanent difference, or do you anticipate this feature migrating to the 175 / 375 at some point in the future?
 
Playing with the iPad app I discovered the 175 and 375 have a unique (I think) keyboard layout. It isn't the same as the original 650 linear swipe nor the new (on the 650) qwerty layout.
 
From watching the webinar given by Garmin it is my understanding that the only difference between this new 175 and the 650 is size of the screen and Nav/Comm.

There are a few more differences. Lots of them on connectivity with other advanced products as well as no VNAV and flight plan cross filling.
 
Ahh man WTF with the proprietary stuff. Garmins, Achilles heel. Keeps more people from buying than it keeps in house I'm sure.

Love garmin stuff, hate being told what to use!


The webinar addressed this question. The response is that yes, Garmin will make the Connext stuff available to Foreflight and similar in the future.
 
The new navigators do not allow you to enter altitude constraints in the flight plan the way you can with GTN 6XX/7XX navigators.

Thanks,
Steve

Please explain the difference between VNAV and VCALC.

g3xpert - Is this likely to be a permanent difference, or do you anticipate this feature migrating to the 175 / 375 at some point in the future?

On the webinar they seemed to indicate this would be a permanent difference.

The first 5 quotes all seem to relate to VNAV vs VCALC. The short answer on VNAV versus VCALC, as I understand it, is that VNAV capability allows you to assign altitudes to various waypoints along a route (such as in a SID/STAR), and VNAV will fly a path to make all of the crossing restrictions. The autopilot will track the VNAV profile if properly configured.

VCALC (a new term for me, but a capability I use with my 396 all the time) only allows you to set up a single crossing restriction, or maybe better termed, a target altitude, and the AP won't track it, but you can set things up to follow an approximate VCALC path.

For instance, in the 396, I set up that I want to cross 2 miles from my destination (target) at 1000 above field elevation (target altitude), and I specify a descent rate, like 500'. Vertical speed to target is displayed, and as it gets to 500', I either hand fly a 500 fpm decent, or set a lower altitude on the EFIS, and the AP flies the same 500 fpm descent (I pre-programmed the AP for 500' vertical speed), and this approximates a VNAV-like profile. You have to adjust rate of descent to stay on profile though, the AP won't correct back to the vertical profile.

The 396 calls this VNAV, but it looks like newer units call it VCALC.

One of the links Brian posted shows a gent setting up such a VCAL descent path.

I also gathered from the webinar that VNAV would be the domain of the 650/750.

Cheers,
Bob
 
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The webinar addressed this question. The response is that yes, Garmin will make the Connext stuff available to Foreflight and similar in the future.

Brian,

I also heard them say no FF in the webinar, but missed any future promise or timeline. Our local FBO/Garmin Dealer said he would be surprised if it didn't happen quite soon. Maybe Levi or Steve could shed some light from the crystal ball? Then again, a 1-year Garmin Pilot subscription is $75. ;-)

-------

Steve or Levi, I asked in an earlier post about Serial/RS-232 output to provide NAV steering to a legacy Dynon EFIS/AP system. Our local dealer is scouring the install manual to see if one exists. Can you guys confirm yea or nay?

Thanks mucho!

Cheers,
Bob
 
Radio control?

Curious on whether the GPS175 and GNX375 can 'push' frequency changes to Garmin radios like the Garmin Aera 660 can?
 
Hello,

No, this is not a function provided by these navigators.

Thanks,
Steve

Kinda a surprise but I understand the intent of this product and most of the time there is already something else’s in the panel that can provide that feature.
 
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Brian,

I also heard them say no FF in the webinar, but missed any future promise or timeline. Our local FBO/Garmin Dealer said he would be surprised if it didn't happen quite soon.

Cheers,
Bob

Bob 1:18:45 on the webinar is where I got that from. Remember, FF has work to do on their end to support this new box. That is up to them, not Garmin. Hope you are doing well my friend!
 
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Brian,

I also heard them say no FF in the webinar, but missed any future promise or timeline. Our local FBO/Garmin Dealer said he would be surprised if it didn't happen quite soon. Maybe Levi or Steve could shed some light from the crystal ball? Then again, a 1-year Garmin Pilot subscription is $75. ;-)

-------

Steve or Levi, I asked in an earlier post about Serial/RS-232 output to provide NAV steering to a legacy Dynon EFIS/AP system. Our local dealer is scouring the install manual to see if one exists. Can you guys confirm yea or nay?

Thanks mucho!

Cheers,
Bob

Hello Bob,

We can't speak for FF, but FF has a page full of Garmin products that are supported on their website. The GNX 375 is a superset of most of the other devices since it provides ADS-B traffic/weather and attitude as well as supports flight plan transfer all on one interface, so it may take them a while to do what the Aera 660/795/796 units and Garmin Pilot do today.

To expand on this, the GNX 375 provides the ADS-B In/Out, ADS-B traffic/weather, and attitude provided by a GTX 345 and provides the flight plan upload/download normally provided by a Flight Stream 210 (or natively by a GDU 4XX in a G3X Touch system), so the GNX 375 is like a GTX 345, a GTN 625, and a FS 210 all put into one relatively small box. The GNX 375 has both wired and wireless interfaces for this data.

The GPS 175 and GNX 375 have an "Aviation Output 1" RS-232 format that works with many older products. We suspect that will work fine for your needs.

Thanks,
Steve
 
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Now that Garmin has Connext working between tablets running FltPlanGo and Garmin products like the Aera 660, will we ever be able to see traffic displayed on FltPlanGo on our Aera 660? Traffic coming to FltPlanGo via a Stratux over WiFi, and going out to the Aera via Connext over Bluetooth?
 
Bob 1:18:45 on the webinar is where I got that from. Remember, FF has work to do on their end to support this new box. That is up to them, not Garmin. Hope you are doing well my friend!

Thanks Brian! Doing well here...busy with a few upgrades that I need to post about, and heading to Dayton Airpark to chase a little jet with a VAF fella in it this morning! Hope you and Chantel are doing well too! :)

Hello Bob,

We can't speak for FF, but FF has a page full of Garmin products that are supported on their website. The GNX 375 is a superset of most of the other devices since it provides ADS-B traffic/weather and attitude as well as supports flight plan transfer all on one interface, so it may take them a while to do what the Aera 660/795/796 units and Garmin Pilot do today.

To expand on this, the GNX 375 provides the ADS-B In/Out, ADS-B traffic/weather, and attitude provided by a GTX 345 and provides the flight plan upload/download normally provided by a Flight Stream 210 (or natively by a GDU 4XX in a G3X Touch system), so the GNX 375 is like a GTX 345, a GTN 625, and a FS 210 all put into one relatively small box. The GNX 375 has both wired and wireless interfaces for this data.

The GPS 175 and GNX 375 have an "Aviation Output 1" RS-232 format that works with many older products. We suspect that will work fine for your needs.

Thanks,
Steve

Thanks Steve, that's great info. Planning for phase 1 of panel 3.0 has begun! Really appreciate all the great info here! (Thanks once again DR!)

Cheers,
Bob
 
Reading through the database subscription costs for a Garmin navigator is clear as mud for me. Hoping you guys can help...

If I put a GPS 175 into my airplane for IFR purposes, what is the annual subscription fee to keep it current?

I found this link: https://www.garmin.com/en-US/blog/aviation/announcement-navigation/

At first I was like, not bad at $299/year for Garmin Navigation Database. Then the next section says Single Navigator Bundle for $449... And then I see OnePak subscription for $649. So which is it?

Thanks!
 
Reading through the database subscription costs for a Garmin navigator is clear as mud for me. Hoping you guys can help...

If I put a GPS 175 into my airplane for IFR purposes, what is the annual subscription fee to keep it current?

I found this link: https://www.garmin.com/en-US/blog/aviation/announcement-navigation/

At first I was like, not bad at $299/year for Garmin Navigation Database. Then the next section says Single Navigator Bundle for $449... And then I see OnePak subscription for $649. So which is it?

Thanks!

Depends.... what else do you have in the panel? Do you use or will you use Garmin Pilot?
 
Database prices

Reading through the database subscription costs for a Garmin navigator is clear as mud for me. Hoping you guys can help...

If I put a GPS 175 into my airplane for IFR purposes, what is the annual subscription fee to keep it current?

I found this link: https://www.garmin.com/en-US/blog/aviation/announcement-navigation/

At first I was like, not bad at $299/year for Garmin Navigation Database. Then the next section says Single Navigator Bundle for $449... And then I see OnePak subscription for $649. So which is it?

Thanks!



$299 Nav Database is what you need for IFR/VFR flying.

$449 Navigator Bundle is Nav Database plus obstacles, safe taxi and terrain.

$649 One pack gives you some savings if you have multiple Garmin products that need the databases listed vs buying a subscription for each individual device.

Since I already have obstacles, safe taxi and terrain in my G3X Touch I only buy the $299 Nav subscription for my GTN-650.

Andy
 
Will the GPS 175 be an approved WAAS position source for my GDL-82 such that I don't need to add an additional GA35 to the exterior of the aircraft?
 
Dual power inputs?

Does the GNX375 have dual power input that are diode protected like some if the other G3X parts?
 
Will the GPS 175 be an approved WAAS position source for my GDL-82 such that I don't need to add an additional GA35 to the exterior of the aircraft?

Hello Jim,

Yes, if you are willing to give up the independence of having an ADS-B Out system that doesn't require the IFR navigator to be operational.

Probably acceptable, but a decision you have to make. You do have the back up plan of re-connecting the GA 35 to the GDL 82 should the IFR navigator ever need to be removed from the plane for service.

Thanks,
Steve
 
I have a GNS 430 non WAAS. I understand the cost to convert to WAAS is now about $4000 and just repair is no longer offfered, upgrade is required. So I?m thinking a GPS 175 and GNC255 might be a smarter choice. Would that give the same capability as a GNS430 WAAS? There seems to be some question about vertical guidance.

Thanks

Jim Butcher
 
I have a GNS 430 non WAAS. I understand the cost to convert to WAAS is now about $4000 and just repair is no longer offfered, upgrade is required. So I?m thinking a GPS 175 and GNC255 might be a smarter choice. Would that give the same capability as a GNS430 WAAS? There seems to be some question about vertical guidance.

Thanks

Jim Butcher

Hello Jim,

What question do you have about vertical guidance?

The GPS 175 flies LPV, LNAV+V, and Visual approaches with vertical guidance and the GNC 255 flies ILS approaches with vertical guidance.

Thanks,
Steve
 
Thanks Steve.

Vertical guidance, VNAV vs VCALC.

Does GPS 175 have the same ARINC outputs as my 430 to drive my GRT EFIS?

Is my understanding of 430 repair/ upgrade correct?

Thanks

Jim Butcher
 
Thanks Steve.

Vertical guidance, VNAV vs VCALC.

Does GPS 175 have the same ARINC outputs as my 430 to drive my GRT EFIS?

Is my understanding of 430 repair/ upgrade correct?

Thanks

Jim Butcher

Hello Jim,

The GPS 175 is like the pre-V6.50 GTN 6XX/7XX or the 430W/530W in that it doesn't output A429 VNAV guidance or provide flight planning with a field to enter an altitude constraint at each waypoint as discussed in this posting. Again, this has nothing to do with vertical approach guidance, which it does provide like all GTN and WAAS GNS units.

If your GTR EFIS will accept navigation data from a GTN/GNS, it should also accept this from the GPS 175.

We should still be able to repair a 14V (not 28V) GNS 430. Contact your dealer for details. The current list price for a WAAS Upgrade to existing GNS Series unit which also includes WAAS antenna, data card, and necessary repairs is $4,495.

Thanks for your interest,
Steve
 
While it doesn't tell you what Garmin will choose to support, the Connector Pinout Information from the Part 23 AML STC Maintenance Manual seems to show two ARINC in's and one out even on the GPS 175.

It looks like the 175 has 3 rs232 and the 375 has 5 rs232 ports and both have HSDB.

With the wording in the webinar and in responses seems to indicate the lack of crossfill is mostly a product line differentiation and not a hard limitation. Sure modern vnav may not be possible but even the GTN and the old GNS could cross fill user waypoints both ways and the GTN could push flight plans and direct-to to the GNS.

I seriously hope that they revisit this decision as using the GNX 375 as an admittedly expensive but effective way to maintain a discreet ads-b transponder while also allowing for more situational awareness while working well with the G3X form factor.

If you care about aesthetics, or have limited panel space like in the RV12 the .2" difference in height with a 750 + 375 works out well.

GNX 375: 2.02"H
GTN 750: 6.00"H
GDU 46X: 7.82"H



If this was a marketing decision and not a hardware limitation I hope Garmin reconsiders because as TIS-b and other data sources expand and in ways that are exclusive in their display the more there is a need for small screens for dedicated functions.

The GNX 375 would be great for me as a dedicated Obstacle/Terrain display to take advantage the space that would otherwise be a panel mounted transponder.
 
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GNX/GNS with CAN bus interface

May I ask a stupid question: Why doesn't the GTN or GNX series interface directly with the CAN bus?

I understand the solution is the GAD 29 adapter. And I apologize for my search skills on Google & VAF, they return lots of results but I have not found why Garmin doesn't have the CAN interface directly on the newer GTN & GNX units.

Please point me to some reading material. I used to design networking products (switches & routers) and can probably digest some of the technical materials. There's probably a logical reason why, I would like to know.. please.

Thank you.
 
May I ask a stupid question: Why doesn't the GTN or GNX series interface directly with the CAN bus?

I understand the solution is the GAD 29 adapter. And I apologize for my search skills on Google & VAF, they return lots of results but I have not found why Garmin doesn't have the CAN interface directly on the newer GTN & GNX units.
Please point me to some reading material. I used to design networking products (switches & routers) and can probably digest some of the technical materials. There's probably a logical reason why, I would like to know.. please.

Thank you.

G3xpert can correct me if I'm wrong but probably due to the certification process.
 
Bob 1:18:45 on the webinar is where I got that from. Remember, FF has work to do on their end to support this new box. That is up to them, not Garmin. Hope you are doing well my friend!

This may be an early test of how Boeing dictates ForeFlight priorities.
 
I'm not sure if this was addressed in past posts. Will the GNX-375 crossfill it's flight plan with the GNS-430W or vice versa? Also, will we be able to show traffic and weather from the GNX-375 ADSB on Dynon HDX displays?
 
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