Ah, that's a sad subject, Steven. As best I can tell, there is zero across-brand sharing of routes via NMEA 2000 even though at least some aspect of routes is included in the data standard.

However, I'm pretty sure that you can do it via "sneaker net." By which I mean exporting your routes to an SD card, walking it across the pilothouse to the Zeus3, and importing them. GPX is likely the right common data format, and I'm fairly sure that I've done exactly what you're trying to do at least once.

PS To be clear, Nobeltec TimeZero and Furuno are sort of the same brand, because Furuno is half owner of the Signet/MaxSea company that bought Nobeltec years ago, and the TZ charting engine used by all is basically the same. Also, I know their goal is automatic route, waypoint, and track synchronization across all devices they support, including iPads plus the cloud. Which would be very sweet, but is taking a long time.

Ben,

Thanks.

I thought the SD card might be a method; however, I hate to putzing around with that often.   I don't have a pilot house on our J/boat, but still, I hate to open that chart "door" and shove that little card in- and out- anymore than necessary.  

(On my old Northstar unit, a while ago, I bent a couple of the card reader's "prongs" and that was a disappointing experience in trying i) to figure-out some inconsistent errors were happening; and, ii) discovering how a wonder "Northstar Company" became a brand being transitioned-out....

P.S. -- I remember meeting you at Wayfarer several summers ago.  I noted while you fueled your trawler that the running lights were on in the sunny afternoon.  You said, they're LED's and you liked to let them shine (you never know when some fog wouldn't "drop-in" ;^))).

    SG - J/160 #12