Ask a local avionics technician, you need to download the
user way-points to a database and then convert it to a
format and medium that can be entered into the new Garmin.
The GNS530 database will be "protected" since it is a
certified unit, but you should be able to create a "virtual
GNS530" using a laptop computer and then use the cross-fill
menu to import the way-points. You have room for 1,000
waypoints.

On page 107 of the GNS530 manual, it says that the GNS530
can use "other equipment" in the panel, such as a joystick,
to create a waypoint. This would be documented and a
qualified avionics shop would be able to duplicate the
output and use your database as the input.


--
James H. Macklin
ATP,CFI,A&P

"Red Baron" wrote in message
. ..
| Can you use a program such as EasyGPS (Google) to unload
them from one
| unit and load them into the other via a portable
computer?
|
| Unfortunately no! I already use a similar program as well
as some
| home-made programs, but all of them work with PORTABLE
GPSs. GNS530 is a
| panel mount GPS and doesn't have the standard Garmin
interface, used
| by ant commercial program like EasyGPS, GarTrip, etc.
|
| GNS430 has 4 serial ports, but the software interface
(protocol) seems
| not documented.