My routine with my GNS 430W was to plan all of my flights at home on ForeFlight, and then upload them into the panel when I get to the plane. This also works well for an out and back flight; while the navigator forgets the route after shutdown, ForeFlight remembers, and a simple upload gets the plan back onboard. No need to use a saved route.

One byproduct of this usage model is that each waypoint that does not correspond to a charted waypoint is stored as a user waypoint in the navigator. On the GNS over time these waypoints clog the display up, and since I have no reason to keep them, every once in a while I’ll go into the user waypoints list and select the menu item “Delete all User Waypoints”. Problem solved.

Now, with the IFD, not only will I create new user waypoints, I may also start collecting rubber band waypoints when I modify routes, which appear also to be stored in the IFD user waypoint space. Happily, they don’t show on the map unless you reference them in a route, but they do still collect in the WPT display. 

How can I mass delete all of these waypoints? I’m thinking that creating a blank excel spreadsheet and importing it might do the trick, but if there is an easier way, short of individually CLRing each one, I’d like to know what it is.

Thanks!

This is incorrect (10.3.1.2). I uploaded a CSV file with user waypoints yesterday and the waypoints were merged in with the existing user waypoints on the IFD. It would be nice if it would work as described in the Pilot Guide. It would be a relatively easy way to accomplish what Melohn is requesting..... export the user waypoints to a CSV file, update the file removing the undesired waypoints, then upload the new CSV file without the deleted waypoints. 

If I want to replace the user waypoints with a new CSV file contents, are you suggesting that I need to power off both IFDs and load the new CSV into both before bringing them online together?

Similar question regarding the IFD Trainer. 

I asked about the IFD100 just in case it would have tried to sync its waypoints to the IFD as well.  Best to just clear them all from everywhere before uploading the CSV into one.

Deleting waypoints one at a time is a laborious process if there are many. As mentioned in another thread, if flights are planned at home with ForeFlight and then loaded to the IFD in the cockpit, all the FF VFR waypoints are created in the IFD as new user waypoints since unknown to the IFD even though they already exist as VFnnn. 

There doesn’t appear to be a way to delete all waypoints on the IFD trainer or IFD100. However, it’s a lot easier, albeit annoying, to press the CLR button on your iPad at home versus sitting in the cockpit with the power on trying to do the same thing.

I don’t think I understand the logic about syncing between the IFD 100 app and the IFD devices; some times, the app seems to be busy syncing routes and presumably waypoints, while other times it doesn’t seem to even try. Some manual control or method to monitor what it’s doing and how far along might be helpful.

I’ve turned off the ForeFlight feature to sync user waypoints, as recommended by Avidyne, and it has made the flight plan transfer much more reliable. However, some form of transfer, perhaps in the background, might be helpful someday, particularly since it is easy to delete all waypoints from ForeFlight. 

I have found that if you use the same waypoints from a stored route on ForeFlight, they will not create new waypoints on the IFD. However, for those of us who fly complex search patterns that are one time only, the number of junk waypoints does pile up, and it would be helpful to have a way to just clear them out.

I don't seem to be doing this right. I have an IFD540 and IFD440, both set up with cross-sync on RS232 ports (in/out) 3. The two units cross sync flight plans, but don't seem to cross sync user waypoints. 

As mentioned, my user waypoint list was getting filled with "dummy" VFR waypoints created when transferring ForeFlight routes including VFR waypoints to the IFD540, since Jepp names them differently in the IFD navdata and the IFD doesn't recognize them when they come from ForeFlight with ForeFlight's naming convention. I have quite a few personal user waypoints that I would like to keep, so I saved them to the USB stick in maintenance mode as described in the IFD PG. I then modified the CSV file to remove all the unwanted waypoints and just keeping those of interest. The instructions in the PG are very good and all worked as expected up to the point of loading them back into the IFDs.

However, the IFD's don't seem to be cross syncing the user waypoints as expected. I powered off both IFD's and then loaded the new waypoints from from USB CSV file in maintenance mode, first into the IFD540 and then into the IFD440. When both units were powered back up, the new waypoint list is fine in the IFD540 but it has been cleared in the IFD440. Note that I powered up each IFD individually (with the other off) after loading the new waypoints, just to be sure that each IFD had properly loaded the new waypoints.

Anyone know how to get the user waypoints properly sync'd between two IFD's?

Here is what I see with both units powered on:

When I enter a route in the IFD540, the route is cross sync'd fine to the IFD440. But when I add one of the IFD540 user waypoints to the route, the waypoint is not properly sync'd to the IFD440. See below. Note that the waypoint in the IFD440 is unnamed and is located at an entirely different location than the waypoint in the IFD540.