I have an option One upgrade. What would I get by going to Option 3 besides the additional 9 mhz filter position. I already have DSP. 73 KN4AB -- FAQ on WWW: http://www.contesting.com/tentecfaq.htm Submissions: tentec@contesting.com Administrative requests: tentec-REQUEST@contesting.com Problems: owner-tentec@contesting.com Search: http://www.contesting.com/km9p/search.htm