INSTRUMENT-LANDING-SYSTEM (ILS) SIMULATOR
O H Peters, R Michaels · Elektronik · 1977
A simple ILS simulator is described which can be used as an instructional aid. Three oscillators produce the 90-Hz and 150-Hz signals for the modulation plus a carrier signal of approximately 100 kHz. This enables display on conventional oscilloscopes. At the receiving end, i.e. the onboard receiver, the receiver and amplifier stages are followed by demodulators for localizer and glide path, the filters necessary for the separation of the modulation components, rectifier stages and finally the combined instrument and the appropriate adjusting stages.