oops, spoke too soon!

[blueflyer]

I have a Val Nav 2000 hooked straight into pin 22 on the D100.  It receives the VOR and the yellow pointer will point to the VOR.  I flew a LOC and ILS approach and they worked fine, except the green arrow was stuck pointing to 360 so I got reverse sensing (was flying the ILS 14 and LOC 14) but the CDI+GS indicator on the attitude indicator showed the correct sensing.  I was unable to rotate the green pointer using the Val Nav.  I had no option on the D100 under HSI for "Course", therefore no way to rotate green arrow on the D100.

Any thoughts or suggestions about what may be happening and why I cant rotate the OBS?  Below is a photo of in flight while tuned to a VOR.

 

[Brantel]

Did you connect the TX of the Dynon to the RX (Input) of the Val?

Did you set the OBS/Resolver setting on the Val to SER for serial input?

Did you set the serial mode on the Val to DIR?

It looks like the Val uses the same protocol as the SL30 on the serial line so it should work if you get all the setting correct.

Keep in mind that the SL30 won't allow changes to the course if it is tuned to a LOC freq. You have to set the course before making the LOC active. The Val may or may not be the same...

I doubt the course button will ever show on the Dynon when there is a NAV flag like that pic.

 

[blueflyer]

Brantel
I appreciate the reply (on both forums).  I have my Val configured as you say except that it is wired so that the Val Tx goes to the Dynon Rx.  I think you just mistyped.  I believe the Dynon only receives info from the Val and gives nothing back to the Val.  That's what I understand from talking to Dynon phone tech support anyway. 

I have been talking to Jim at Val about my issues too.  I have the course button available and can rotate the green course arrow when tuned to a LOC or ILS.  When I am tuned to a VOR, the yellow diamond pointer points towards the station, but my course button disappears on the D100 and the green arrow just sits at its default location of 360 (the middle line portion of the green arrow is missing though).  That seems backwards to me from the way an SL-30 would operate with a Dynon (from reading the literature). 

Also, I still cant figure out why when tuned to a VOR and the yellow diamond needle points at the station, why the red NAV is flagged and the station doesn't show the three letter identifier on the Dynon.  That would seem to indicate that its not receiving the signal but the yellow diamond needle points at the station.

 

[dynonsupport]

Pretty sure we know what is going on here.

Without an HS34, the user is expected to use the OBS knob on the SL-30 to adjust the course when on a VOR. The SL-30 ignores this adjustment when on a ILS/LOC, so we add COURSE to the menu in these modes so you can adjust it. We did this because the SL-30 can't have two course adjustment methods, and the OBS is easier to adjust via the OBS knob than the menu in the D100.

The VAL doesn't appear to have a course or OBS knob. So when you are on a VOR, there is no way to adjust the course.

As for the needle being hidden when on a VOR, but the bearing showing, I think I also know what is happening. I bet the VAL requires a COURSE/OBS command over RS-232 in order to give you a CDI. Without this it has no idea what radial it is supposed to be on, so there is no logical CDI to be given. The bearing can still be given since that doesn't require any user input.

This same thing happens with an SL-30 if you set the "head type" to "analog" or "serial." It turns off the CDI since it has no commanded OBS over the interface that is not connected. The reason it does this on "serial" is because we never send a OBS to the SL-30 over serial since this will disable the OBS knob, and there are some real complexities to supporting it.

Unfortunately, this does appear to mean that without an HS34, I don't think the VAL NAV 2000 will work with a D100. There are some assumptions made about how the SL-30 works, and the VAL doesn't do the same things, and in these cases it makes it pretty unusable for a VOR. It should work fine for an ILS (as you have found), and fine with an HS34.

 

[Brantel]

Brantel
I appreciate the reply (on both forums). 

Sorry dude, all my experience with the legacy stuff was with an SL30 and with an HS34 so it looks like from Dynon's reply, you are not going to get full function with that radio unless you add the HS34.

I had actually forgotten that the D100 never sends anything back to the SL30 like the HS34 does. That is where the confusion about the TX/RX came from.

Bummer!


BUT WAIT! I did see in the manual however that there is a way to enable a built in OBS/Course knob on the Val so you might try this and see if what Dynon says above works.

From the manual:
"INT: Internal OBS: The NAV 2000 changes its display, eliminating the standby frequency and
memory access to allow for direct input of the OBS. In this mode, the Volume knob
becomes the OBS Control, and frequency input is directly inputted through the frequency
knobs (Right Hand inner and outer). The display shows a digital CDI, however this is not
to be used for IFR flight. In order to allow for IFR flight, an external CDI/VDI MUST be
attached to the unit."

 

[dynonsupport]

Thanks for digging into the VAL manual Brian. It does look like that might work for this install.

 

[Brantel]

Thanks for digging into the VAL manual Brian. It does look like that might work for this install.

No problem.......hope it will!

 

[blueflyer]

I have tried flying with the OBS knobs active on the VAL, which means the course indicator is active on the Val screen and losing your standby frequency.  That was the mode I was in when I took the first photo.  I will go back and make sure my Val setting were correct when I tried this, but I am not hopeful.  I tried all the settings.

If I buy the HS 34:
1)Will my OBS (green arrow) course indicator work if I buy the HS34?
2) Will the red NAV flag go away
3)will I get the 3 letter station identifier on the D100?

the Val radio was picking up the station during the flight.  I flew circles around the station and the yellow diamond pointer stayed pointed on the station all the way around the 360 degree turn.  I could see the VOR station on the ground out my window to verify. 

Why was the VOR flagged red in first photo if it was receiving the signal and not showing the 3 letter identifier on the D100? Any thoughts on those issues?

 

[dynonsupport]

These are questions I think you need to ask VAL.

The ident is sent to us by the NAV radio, so we can't show this if it isn't sent. I looked at the NAV 2000 documents and didn't see any indication that it decodes the morse for you, so I don't know if it has this advanced function.

You need to find out what the VAL needs to un-flag the indicator. All we do is show what the radio tells us to. If it doesn't work when you have the VAL in its own course mode, the HS34 probably won't change anything. If it does, then the HS34 may make it more convenient.