The 1976 International Symposium sponsored by the IEEE Antennas and Propagation Society (AP-S) and a meeting of URSI sponsored by the US National Committee of URSI (USNC) will be held jointly at the University of Massachusetts on the Amherst Campus. The technical sessions for IEEE/AP-S and URSI will be coordinated to provide a well integrated program. Authors are invited to submit papers on all topics of interest to the AP-S and URSI memberships. The topics listed below are intended as suggestions and consideration will be given to papers covering other subjects. Inquires for information may be directed to R. Fante and C. Sletten, Technical Program Committee, AFCRL(LZ), Hanscom AFB, Massachusetts 01731, (617)861-3683.