CQ MF/LF Operating Editor John Langridge, KB5NJD, reports that he and several other FCC Part 5 experimental stations will be operating demonstration stations on 630 and 2200 meters during Field Day weekend. Hams are encouraged to tune their receivers down below the AM broadcast band to listen for these stations.
Updated June 22, 2017 @ 1212z
Additional information on monitoring these stations and turning your reception into Field Day bonus points may be found on John's website at http://njdtechnologies.net/field-day-2017-details/.