Mike, I'm also studying for the Extra. I found a basic geometry book of some
help as it'd been awhile since I'd done any of that. I'm avoiding the question
pool until I have a good grasp of how to do all this stuff. I don't have a
scientific calculator and I'm sure hoping I can get around having to use tables
for this thing <g>. Maybe a little programming will be in order for this one
<g>.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP R/D - AU
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html