Strong SS chatter on 6585 kHz USB and 6857.7 USB (also noted 6558 kHz USB), going basically nonstop. Good signals from the aircraft and controllers, however at 2210 UTC or so the controller had to ask an aircraft to repeat transmission due to heavy QRM from 6577.7 USB/6558. New York Radio coming in nicely on 6586 kHz USB with dozens of other QSOs going on in the 6525 kHz to 6765 kHz aeronautical band this evening.