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Customer Support / Re: Shared Data Between CN and CNv
« Last post by Evan Ludeman / T8 on January 07, 2021, 04:15:18 PM »
If you enter a ballast amount into CNII it copies to CNv.  If you enter or change MC on CNII it also changes on CNv. If you enter those things on CNv they are not copied to CNII.  Also, CNv and CNII use different ballast schemes.

True.
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Customer Support / Re: Shared Data Between CN and CNv
« Last post by Evan Ludeman / T8 on January 07, 2021, 04:14:09 PM »
The communication protocol isn't the issue. 

You can't use an incoming data stream in a secure flight recorder (for fairly obvious reasons).
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Customer Support / Re: Shared Data Between CN and CNv
« Last post by carbonprop on January 07, 2021, 06:39:38 AM »
If you enter a ballast amount into CNII it copies to CNv.  If you enter or change MC on CNII it also changes on CNv. If you enter those things on CNv they are not copied to CNII.  Also, CNv and CNII use different ballast schemes.
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Customer Support / Re: Shared Data Between CN and CNv
« Last post by cemx86 on January 06, 2021, 07:55:53 PM »
About using a GPS splitter (often called a combiner which I don't quite understand) - I am conflicted. 

If I use such a device to go from four (soon to be 5) GPS antennas down to one, which is powered by a single avionics device, then I loose all the redundancy I currently have.  One device dies and every device looses GPS. 

So I prefer a SeeYou Mobile Oudie GPS schema of redundancy.   The Oudie (I and II, unsure about the IGC) has an internal GPS.  If you connect another device with a GPS, e.g. a Cambridge 302, the Oudie will work with either GPS (defined as primary or secondary).  If one GPS signal is lost, then the other takes over.  Smooth.  Seamless. 

It seems that the various manufacturers of avionics that use GPS (seems that nearly all do these days) simple don't want to create a working group to agree to a single communications protocol between all devices.  I know of many examples through the years where manufacturers of a given technology each choose a proprietary way to implement a function for seemingly for self-serving reasons. 

A simple example we can all relate to is the earlier days of cell phones where every manufacturer, and sometimes the same manufacturer, had different charging cables for each phone.  Buy a new phone and you had to throw away all your chargers and start over again.  Slowly this condensed to MiniUSB, MicroUSB, and Lightning.  Now it seems that USB-C has become *THE* standard.  Heck, even Apple has seen the light.  Hurrah!  Are you old enough to remember the early days of computer inter-connectivity where there was a witches caldron of choices to deal with.  Now we simply EXPECT the ease of plug and play computer connectivity. 

FLARM has shown the wisdom of a standard communications protocol.  Many (all???) new soaring avionics have jumped on the FLARM plug and play bandwagon.  This has allowed this key safety tool to be implemented and to grow exponentially for the benefit of all.  Hurrah again! 

Why can't GPS follow this same path? 

Thanks, John OHM

<<<Hey, that was pretty good. I should send that to Soaring magazine!>>>

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Customer Support / Re: Shared Data Between CN and CNv
« Last post by Evan Ludeman / T8 on January 06, 2021, 11:15:35 AM »
Secure flight recorder issues at play here.

There are a few threads on this board that deal with GPS signal splitting.  Haven't tried it myself, but several users have made it work.

Communication between CNv and CN2 is via serial bus.  IIRC all CN2 uses at this time is wind. 
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Customer Support / Shared Data Between CN and CNv
« Last post by cemx86 on January 04, 2021, 04:01:20 PM »
I have a CNII and a CNv.  They each have a GPS antenna.  They are also connected to one another though they are considered standalone avionics. 

I'm not exactly sure what data that they share with one another through the CAN bus.  Wind?  [As an aside I have a Cambridge 302 also connected to the CNII - what sharing goes on there?]

My question is, shouldn't/couldn't they share GPS data?  That is if one GPS system (antenna or receiver) conks out then the other takes over for both of the pieces of equipment.  Better yet I could get rid of one [two] GPS antenna.  I will shortly be up to 5 of them when I install ADS-B. 

- John
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Integration with Other Devices (Flarm & Vario) / Re: Flam Traffic on CNII
« Last post by Evan Ludeman / T8 on November 29, 2020, 06:29:49 AM »
Rex and I agree that chevrons based on angle isn't useful.

I've been working with our (new) software developer on better flarm presentation (among other things).  There's hope.

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ClearNav II / Re: Is your CNII slowing down?
« Last post by Evan Ludeman / T8 on November 29, 2020, 06:21:30 AM »
You don't even need to do a software install, you just need to run the updater with all the boxes unchecked.  You'll see the progress window mention moving diagnostic files (from CN2 to USB). 

There's a bug fix build of CN2 software in existence (no, I don't have it).  I don't know why it hasn't been released...

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ClearNav II / Is your CNII slowing down?
« Last post by Chris Hostettler on November 27, 2020, 10:09:11 PM »
Do you experience slow reaction of your CNII especially when entering and editing tasks?
I got this beginning of this season.
The reasons is the build up of temporary files reducing available memory.
To solve the problem, just re-install the latest software once a year and the problem does not happen.
Cheers - keep on flying
Chris
CH
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Integration with Other Devices (Flarm & Vario) / Re: Flam Traffic on CNII
« Last post by Chris Hostettler on November 27, 2020, 10:00:17 PM »
Chevrons based on calculated angle is crap!
As soon as the traffic is >10km away the chevrons always show --
If insisting to keep the chevrons to avoid numbers I propose the following:
Instead of using the angle, use the altitude difference.
2^= >1500ft
^  = +300 ft to +1500ft
--  = +300 ft to -300ft
v   =  -300 ft to -1500ft
2v =  <-1500ft
this way we can see the height difference independent of distance
please comment
Chris
CH
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