When designing a radio communication system it is important to take the antenna's performance after it is integrated on the platform into account. In this study, the performance of an antenna system consisting of a UHF-, VHF- and HF antenna integrated on a platform consisting of a 2 by 2 m ground plane is evaluated both in terms of its electromagnetic performance (impedance mismatch and directivity) and the resulting noise level in the receiver. By using the partial element equivalent circuit (PEEC) method it is possible to include the matching circuit in the antenna model. The effects of the antenna integration on the performance of the radio system is shown from a physical point of view. It was shown that blocking of the signal limits the performance of the UHF link while both impedance mismatch and distortion of the radiation pattern due to the small ground plane can have major impacts on the performance of the VHF- and HF links. The effect of impedance mismatch may be severe in the HF link. A significant discrepancy between the results presented in this report and a realistic integration scenario can however be expected. This difference is discussed and an initial set of recommendations is proposed.