Can't say I love Windows 8.1 but that's what came my new PC.
I loaded HFTA from the ARRL Antenna Book CD-ROM along with the other
programs on that disc.
I am able to open HFTA, enter data and display the Terrain Profile however
when I select Compute I get a YTW (not HFTA) error message:
Run-time error 91
Object variable or With block variable not set
I tried running HFTA under Windows compatibility mode Windows XP (SP3) but
that doesn't help.
I am building a large rotating tower system this fall and need to figure
out what heights to put the Yagis.
Thanks
Bill AA7XT, ex-AA6TT, ex-NT1Y
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