Aspects of the disclosure provide for a method implemented by a control system for communicating with a remote device. In at least some examples, the method includes determining a frequency of operation of the remote device and determining whether the frequency of operation of the remote device varies from a programmed frequency. The method further includes determining a frequency scaling factor based on whether the frequency of operation of the remote device varies from a programmed frequency. The method further includes generating a frequency shift keying (FSK) signal, scaling the FSK signal to generate a frequency scaled shift keying (FSSK) signal, and transmitting the FSSK signal to the remote device.