11. Superheterodyne receivers allow use one or more fixed intermediate frequency tuned circuits for selectivity. 12. Conversion to an intermediate frequency is useful for several reasons. 13. After the conversion to an intermediate frequency , the signal is digitized using an analog-to-digital converter. 14. It receives the intermediate frequencies ( IF ). 15. The chipset converts the signals from 2.3 gigahertz ( GHz ) to a lower intermediate frequency . 16. RSSI is often done in the intermediate frequency ( IF ) stage before the IF amplifier. 17. The pioneering work of Tesla and Fessenden led to the development of basic intermediate frequency circuitry. 18. A digital modulator transforms a digital stream into a radio signal on Intermediate frequency ( IF ). 19. Since then, the superheterodyne circuit, with its intermediate frequency , has been used in virtually all radio receivers. 20. When you eliminate all those intermediate frequencies it drives a lot of the cost out of the system.
