"F1" key in xorg Linrad program does not work as expected

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

Hello,

I have been helping to the author of Linrad SDR software to make it work 
in NetBSD operating system, also in FreeBSD. He is about releasing 6.0 
version and and is polishing it. A prerelease version can be downloaded 
from:

svn checkout https://svn.code.sf.net/p/linrad/code/trunk linrad

Just a minor curious thing that at the moment I have not been able to 
understand is that in NetBSD operating system "F1" does not work as help 
key. Only "!" key works. In FreeBSD operating system "F1" key works fine 
as in Linux, no problem at all. In Linux and FreeBSD both "F1" and "!" 
key work as help key, it is the expected behaviour of the program.

I have tested both XFCE4 and CTWM window managers, just in case F1 key 
was captured as a keyboard shortcut. I think I am missing something. 
Could F1 key be captured by another program and not working in Linrad as 
expected?

Thanks from my ignorance.

Ramiro.