An experiment conducted near the Nares Abyssal Plain broadcast LFM and cw signals to investigate propagation across two convergence zones (CZ). Air-launched Difar sonobuoys were placed in the first and second CZs simultaneously, and cw bursts of about 1000 Hz, and LFMs covering 900 to 1100 Hz were recorded. A time-delayed echo repeater, which rebroadcast received signals omnidirectionally, was located in the first CZ. These signals were recorded via an expanded videocassette recording system [S. G. Payne, N. R. Bedford, and L. A. Thompson, ‘‘The AEAS Poco Amigo Airborne Acoustic Measurement System,’’ ARL-TR-88-28], which demultiplexes signals from each Difar sonobuoy into its omnidirectional, north–south, and east–west components. Matched-filter processing was applied to these data to obtain a temporal arrival structure. In the case of the second CZ, all three components of the Difar buoy were separately recorded thus allowing horizontal directionality via beamforming. Using calibration information from directional hydrophones, vertical arrival angles were determined [M. B. Bennett, L. A. Thompson, and P. T. Eisman, ‘‘Moored Data Buoy for Shallow Water Acoustic Studies’’ (in preparation)]. The arrival structure of the primary source and the echo repeater will be contrasted. [This work is supported by the ASW Environmental Acoustic Support Program.]