  The South Pole, which hosts the IceCube Neutrino Observatory, has a complete
and around-the-clock exposure to the Galactic Center. Hence, it is an ideal
location to search for gamma rays of PeV energy coming from the Galactic
Center. However, it is hard to detect air showers initiated by these gamma rays
using cosmic-ray particle detectors due to the low elevation of the Galactic
Center. The use of antennas to measure the radio footprint of these air showers
will help in this case, and would allow for a 24/7 operation time. So far, only
air showers with energies well above 10 PeV have been detected with the radio
technique. Thus, the energy threshold has to be lowered for the detection of
gamma-ray showers of PeV energy. This can be achieved by optimizing the
frequency band in order to obtain a higher level of signal-to-noise ratio. With
such an approach, PeV gamma-ray showers with high inclination can be measured
at the South Pole.
