  Multi-detector observations of individual air showers are critical to make
significant progress to precisely determine cosmic-ray quantities such as mass
and energy of individual events and thus bring us a step forward in answering
the open questions in cosmic-ray physics. An enhancement of IceTop, the surface
array of the IceCube Neutrino Observatory, is currently underway and includes
adding antennas and scintillators to the existing array of ice-Cherenkov tanks.
The radio component will improve the characterization of the primary particles
by providing an estimation of X$_\text{max}$ and a direct sampling of the
electromagnetic cascade, both important for per-event mass classification. A
prototype station has been operated at the South Pole and has observed showers,
simultaneously, with the tanks, scintillator panels, and antennas. The observed
radio signals of these events are unique as they are measured in the 70 to
350\,MHz band, higher than many other cosmic-ray experiments. We present a
comparison of the detected events with the waveforms from CoREAS simulations,
convoluted with the end-to-end electronics response, as a verification of the
analysis chain. Using the detector response and the measurements of the
prototype station as input, we update a Monte-Carlo-based study on the
potential of the enhanced surface array for the hybrid detection of air showers
by scintillators and radio antennas.

Instrumentation and Methods for Astrophysics;High Energy Astrophysical Phenomena