The images above are aligned to illustrate the full frequency range of the Solar Radio Spectrometers at Sunnydale. While each receiver pair ( 56 & 57 and 62 & 63 ) scan the same frequency range, there may be subtle differences between image pairs receive path characteristics and also due to polarisation effects on the received signals as they pass through the Earth's ionosphere. The reason that there is a gap in the scan frequency between 88MHz and 108MHz is due to the FM Broadcast band which, under normal conditions, generally swamps most signals from the Sun. We consider such high power broadcast transmissions (Digital TV, FM etc...) as radio frequency interference (RFI) which is capable of distorting the solar emissions that we seek to receive.