On Thursday, July 4, 2013 10:53:04 PM UTC-7, wrote:
I read the pilot manual that is on the website and found it to be a bit thin. It says that traffic is represented by triangles that point in the direction that the traffic is traveling in with a bar above or below the triangle to indicate the relative altitude. The audio (bitching Betty) is supposed to come on only if you are on a collision course. That is not working for you?

Thanks for pointing out the new manual (published July 2013 so a day or two ago?). It has CONSIDERABLY more detail than the original which was very light weight. Including what the line next to the triangle on the traffic display indicates. Yes, I am seeing the trangles and lines, at least for ADS-B traffic. I assume I will see glider traffic that way as well. But that and the audio warning is all you get - no FlarmNet info, no climb/descent info.. I don't think it changes to that screen automatically in the event of a collision warning.

In another recent post, Marc says that Butterfly is not intending to implement all of that function, as they do not want to replace the need for a dedicated Flarm display. I hope they change their mind on this: I can see no drawbacks at all of using the vario display for this function. It is beautifully brilliant, auto brightening/dimming, already connected to the Flarm, presumable placed in a very viewable area of the panel, already connected to a large speaker. What it should do IMO is implement the functionality of the Flarm display, and automatically switch to that page when a collision alert occurs. The vario bar would still be shown on the left, if centering the circle was deemed more important than avoiding a collision!

The installation is more involved than a traditional vario like the CAI302 I had before. However there is nothing magic about it. The main complication is mounting the ISU, which requires alignment with the airframe and also distance isolation from magnetic disturbances including power wires. I found room for it under the glare shield of my ASH26, but did spend some time cleaning up the power wiring. Power and grounds for everything should be run close together (twisted together insures this) to minimize the stray magnetic fields. That is good practice regardless. If you have to mount the ISU elsewhere, its going to be some work - a large cable and three pneumatic tubes would have to be run.