I'm sure Ian's proceedures are probably OK, but they are not the proceedures MFJ puts out to recalibrate the 259A. 73 Ed -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: owner-towertalk@contesting.com Search: http://www.contesting.com/km9p/search.htm