I found that v.128 beta could only capture at a maximum interval of 9999 seconds. There will be a bit of overlap of capture windows at QRSS-90 and even more at -120. I set it to 9999, which sure isn't many captures for an overnighter, but will cover it all until 6am central when I shut it down. Mike>WE0H http://www.we0h.us/lf.html