Generalized nearfield acoustical holography (GENAH), a noncontact technique to measure the vibration and radiation from vibrating cylinders, has been applied in the past to study submerged cylinders excited into vibration at a single frequency. The technique has been expanded to broadband excitation, so that from a single experiment several octaves of acoustic data can be provided. With this new capability GENAH reaches its full power as an experimental technique for studying the complete acoustics of a vibrating, fluid-loaded cylinder. GENAH is used to reconstruct the radial velocity on the surface of a capped cylinder driven into vibration with a miniature shaker. Important validation of this reconstruction is provided by an accelerometer attached to the surface, which is compared to the reconstructed velocity. Agreement between them over the band of measurement (2.0–8.0 kHz) is better than 2 dB.