Hi Ron, N1 is the Gulfstream 4, N2 and N3 are the Citation Excels. Best regards, Tony On Wed, Mar 5, 2008 at 7:52 PM, <mdmonitor1 at verizon.net> wrote: > 1. VHF/UHF: ((Times are EST)) > > 0845- November 1 (Citation 560, FAA Hqs Wash)-check in w/ZDC (121.375).