The Jupiter does not have a Real Time Sweep Display. It just takes a snapshot of current conditions. 73 John / N0KHQ / St. Louis Always on 18.130 Antennas: You can build 'em better than you can buy 'em Please visit the sites below: http://www.hamuniverse.com/17mcoaxmox.html http://www.cebik.com/n0khq.html http://www.ssb-audio.com/forum/