Easy way to tell the difference...R-20 has 7 horizontal braces while R-25 has 8! They both have the diag braces....just count the steps. 73, Hank/K2UVG k2uvg@nfds.net http://www.nfds.net/~nkahrs/k2uvg.html -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: K7LXC@contesting.com Sponsored by Akorn Access, Inc & KM9P