Garmin 430 OBS Question

[GalinHdz]

Is the Garmin 430W OBS supposed to display something when you turn the Skyview CRS joystick? Mine shows nothing so I am not sure I am changing the VOR OBS when I move the bug. The ARINC-429 seems to be working fine since the G430 gets altitude from the Skyview.

I have not started flight testing and only have a LOC close by for ground testing. 

 

[Dynon]

Not in normal operation. But, when you're in OBS hold mode (by hitting the OBS) button on the 430, auto-waypoint sequencing is suspended and the GPS course is determined by the course selector, in this case, the SkyView course selection. This is the "pseudo VOR" feature that people sometimes talk about, becaues it lets you spin the GPS course around your current waypoint kind of like a VOR radial.

 

[GalinHdz]

Not in normal operation. But, when you're in OBS hold mode (by hitting the OBS) button on the 430, auto-waypoint sequencing is suspended and the GPS course is determined by the course selector, in this case, the SkyView course selection. This is the "pseudo VOR" feature that people sometimes talk about, becaues it lets you spin the GPS course around your current waypoint kind of like a VOR radial.

Now I am confused. So how do I select which VOR radial from the G430W is to be displayed on the Skyview HSI?  :-?

 

[swatson999]

I think there's confusion here between a GPS course and how the OBS button is used to change that courseline, and a VOR being used as the navigation source.

I think the OP is asking how to change the VOR radial (OBS) using Skyview...and the 2nd post answer was how to change the courseline when navigating with the GPS half of the 430W.

First, let's make sure that's the question...how to change the radial being used for navigation when a VOR has been tuned in to the NAV portion of the 430W and VOR is selected as the NAVSOURCE for the HSI on the Skyview...

Is that right?

 

[GalinHdz]

I think there's confusion here between a GPS course and how the OBS button is used to change that courseline, and a VOR being used as the navigation source.

I think the OP is asking how to change the VOR radial (OBS) using Skyview...and the 2nd post answer was how to change the courseline when navigating with the GPS half of the 430W.

First, let's make sure that's the question...how to change the radial being used for navigation when a VOR has been tuned in to the NAV portion of the 430W and VOR is selected as the NAVSOURCE for the HSI on the Skyview...

Is that right?

Correct. And if you are supposed to see the radial selected on the G430W test page.

 

[swatson999]

Do you mean the start-up test page which says things like "CDI Half-left" and "GS Half-up", that page?

If that's what you're talking about, I don't know and I don't think twiddling your course on the SV would do a thing (but I'll try it next time I'm there).

You need a better understanding of how the 430W operates...the test page is merely sending out a bogus data so you can see that the two are connected and good signals are going from the Garmin to your SV (or King, or what have you) HSI.

That's irrelevant for purposes of dialing a radial. (Not the least of which is because ILS doesn't even have the concept of a radial, as shown on the test page).

You can do two things (at least):

1. Use the *GPS* capabilities of the 430W to create a point-to-point course, and then set your SV to use the 430W GPS as the primary nav on the HSI. Hitting the OBS button on the GPS will then allow you to change the courseline TO your next waypoint much as you would a VOR. Be sure to hit the OBS button again to put the 430W back into GPS mode after selecting your course.

2. Use the *VOR* capabilities of the 430W to dial in a VOR, and then set your SV to use the 430W VOR as the primary nav on the HSI (note the difference...you're now using a VOR or ILS, NOT the GPS). Now your HSI (and the CRS setting) on the SV work just like any other VOR/OBS head out there. NOTE that this has *nothing* to do with the OBS button on the GPS box!

This can be confusing...you *must* know which "mode" you're in, and which system/subsystem is driving your HSI and other SV display info...Is it the 430W GPS, the SV GPS (if you have used it to create a flight plan or direct-to), Nav 1, or Nav2? And of course, even IF you're using GPS, if you're doing an IFR flight plan and an approach is entered and armed, and it's an ILS....guess what?

 

[GalinHdz]

Do you mean the start-up test page which says things like "CDI Half-left" and "GS Half-up", that page?

If that's what you're talking about, I don't know and I don't think twiddling your course on the SV would do a thing (but I'll try it next time I'm there).

You need a better understanding of how the 430W operates...the test page is merely sending out a bogus data so you can see that the two are connected and good signals are going from the Garmin to your SV (or King, or what have you) HSI.

That's irrelevant for purposes of dialing a radial.  (Not the least of which is because ILS doesn't even have the concept of a radial, as shown on the test page).

You can do two things (at least):

1.  Use the *GPS* capabilities of the 430W to create a point-to-point course, and then set your SV to use the 430W GPS as the primary nav on the HSI.  Hitting the OBS button on the GPS will then allow you to change the courseline TO your next waypoint much as you would a VOR.  Be sure to hit the OBS button again to put the 430W back into GPS mode after selecting your course.

2.  Use the *VOR* capabilities of the 430W to dial in a VOR, and then set your SV to use the 430W VOR as the primary nav on the HSI (note the difference...you're now using a VOR or ILS, NOT the GPS).  Now your HSI (and the CRS setting) on the SV work just like any other VOR/OBS head out there.  NOTE that this has *nothing* to do with the OBS button on the GPS box!

This can be confusing...you *must* know which "mode" you're in, and which system/subsystem is driving your HSI and other SV display info...Is it the 430W GPS, the SV GPS (if you have used it to create a flight plan or direct-to), Nav 1, or Nav2?  And of course, even IF you're using GPS, if you're doing an IFR flight plan and an approach is entered and armed, and it's an ILS....guess what?

When you have a GI-106 connected and you are in the "start-up test page" as you turn the OBS on the GI-106 the OBS data on the G430 test page changes. I have a very good idea of how the G430 functions. I wanted to know if this is also true with a Skyview connected. I am not interested in the G430 GPS function right now but in the G430 VOR function being displayed and controlled on/by the Skyview HSI. 

 

[swatson999]

OK, it just sounded like there was some confusion here...your first post mentioned only having a LOC for ground testing, and that there has been no flight testing done.

I don't think if you're tuned to a LOC frequency twiddling the OBS will do anything, since localizers done't have radials, right?

I don't know about what happens on the test page, I don't think I ever tried it that I recall, but in the air, yep...if tuned to a VOR, the SV HSI will act precisely as any other HSI or OBS assuming you have the "NAV" (VOR) selected as the NAVSRC on the SV PFD page.

 

[GalinHdz]

OK, it just sounded like there was some confusion here...your first post mentioned only having a LOC for ground testing, and that there has been no flight testing done.

I don't think if you're tuned to a LOC frequency twiddling the OBS will do anything, since localizers done't have radials, right?

I don't know about what happens on the test page, I don't think I ever tried it that I recall, but in the air, yep...if tuned to a VOR, the SV HSI will act precisely as any other HSI or OBS assuming you have the "NAV" (VOR) selected as the NAVSRC on the SV PFD page.

I am asking about the test page and how it acts with the Skyview ARINC-429 module connected. Not having a VOR at my field limits what I can test on the ground.

BTW: A localizer does transmit a radial but only one. That is why you can't select another radial like you can with a VOR. 

 

[swatson999]

OK, it just sounded like there was some confusion here...your first post mentioned only having a LOC for ground testing, and that there has been no flight testing done.

I don't think if you're tuned to a LOC frequency twiddling the OBS will do anything, since localizers done't have radials, right?

I don't know about what happens on the test page, I don't think I ever tried it that I recall, but in the air, yep...if tuned to a VOR, the SV HSI will act precisely as any other HSI or OBS assuming you have the "NAV" (VOR) selected as the NAVSRC on the SV PFD page.

I am asking about the test page and how it acts with the Skyview ARINC-429 module connected. Not having a VOR at my field limits what I can test on the ground.

BTW: A localizer does transmit a radial but only one. That is why you can't select another radial like you can with a VOR. 

I think you've already solved this issue (in another thread?) but I did check this...and yes, changing the OBS on the SV will change the numerical radial value on the 430 test page...I never messed with that before, but it's interesting that it will do that.

 

[GalinHdz]

OK, it just sounded like there was some confusion here...your first post mentioned only having a LOC for ground testing, and that there has been no flight testing done.

I don't think if you're tuned to a LOC frequency twiddling the OBS will do anything, since localizers done't have radials, right?

I don't know about what happens on the test page, I don't think I ever tried it that I recall, but in the air, yep...if tuned to a VOR, the SV HSI will act precisely as any other HSI or OBS assuming you have the "NAV" (VOR) selected as the NAVSRC on the SV PFD page.

I am asking about the test page and how it acts with the Skyview ARINC-429 module connected. Not having a VOR at my field limits what I can test on the ground.

BTW: A localizer does transmit a radial but only one. That is why you can't select another radial like you can with a VOR. 

I think you've already solved this issue (in another thread?) but I did check this...and yes, changing the OBS on the SV will change the numerical radial value on the 430 test page...I never messed with that before, but it's interesting that it will do that. 

THANKS! Mine does not do it with the Skyview but it did with the GI-106. However everything (VOR/ILS/LOC/GS) is working properly, as verified in flight, so I don't know what is going on. 

 

[Dynon]

Steve - do you have SkyView or an HS34? (there are slight differences in the interface in the nitty gritty details, if I remember right)

 

[swatson999]

Steve - do you have SkyView or an HS34? (there are slight differences in the interface in the nitty gritty details, if I remember right)

Skyview (and I reiterate my position that when you come out with "advanced autopilot features" that it NOT NOT NOT require me to add another little box like an HS34 ).

Just for sh*ts and grins, we tried this last week...SV up and on the PFD, 430W up and on the test page, and lo and behold, changing the CRS on the SV did, in fact, change the numerical reading on the 430W test page...is that not right?

 

[GalinHdz]

Steve - do you have SkyView or an HS34? (there are slight differences in the interface in the nitty gritty details, if I remember right)

Skyview (and I reiterate my position that when you come out with "advanced autopilot features" that it NOT NOT NOT require me to add another little box like an HS34 ).

Just for sh*ts and grins, we tried this last week...SV up and on the PFD, 430W up and on the test page, and lo and behold, changing the CRS on the SV did, in fact, change the numerical reading on the 430W test page...is that not right?

Sounds like yours is working correctly but mine doesn't do it.