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![Double conversion super-heterodyne ES receiver [2]. | Download Scientific Diagram](https://www.researchgate.net/profile/Matthew-Luka/publication/235913554/figure/fig2/AS:299775346921477@1448483421057/Double-conversion-super-heterodyne-ES-receiver-2_Q320.jpg "Double conversion super-heterodyne ES receiver [2]. | Download Scientific Diagram")