The invention relates to the installation of a broadcast data receiver or similarly installable apparatus. The apparatus and method of the invention includes a means for taking measurements to indicate whether the receiver is installed and operating to provide an optimum service to the user. The Broadcast Data Receiver (BDR) is provided with the processing and control capacity to undertake the comparison of the measured values of the incoming frequency signals at two spaced points and compare with predetermined parameters. If the comparison is acceptable, an indication is provided to the installer but if not the control system for the BDR adjusts of the operation of one or a plurality of components provided as part of a circuit within the BDR until the values are acceptable.