[Towertalk] Using TA

[Pete Smith]

I've borrowed a copy of TA for some comparisons with YT, and find that I 
can't change either terrain or antenna files from within the 
program.  Hitting T or A from the on-screen menu causes the program to 
abort with the helpful message "error."  This hjappens whether in a DOS 
window or after restarting in DOS.

The issue is probably simple but the documentation is sparse.  Anyone out 
there know what's happening?
73, Pete N4ZR

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