Hi all I have this meter mkiv (yellow 5 button) I need to update the transponders for several satellites all its reading now is vertical on 28.2 and horizontal on 13 is there a step by step for doing this or can someone advise I don't have the work (due to career change) to justify replacing it out right any help advice would be great. so far I've read the data from the meter and attempted to open it in the editor but to no avail . Thanks P