#Article Launch Challenge#In today's rapid technological development, it is true that there are some fields that are developing relatively slowly, and one of them is broadcast technology. Although the application of DSP (Digital Signal Processing) technology has brought simplification to circuit design, this does not mean that broadcast technology has advanced by leaps and bounds, because the basic principle is still the same, but there are more digital-to-analog conversions.
The advent of DSPs has indeed dramatically changed the way signal processing is done, making radio designs cleaner and more stable in performance. With the application of DSP technology, modern radios have significantly improved in signal capture and restoration, but in fact, the cost is significantly reduced.
Technologies such as secondary frequency conversion, synchronous detection, and phase-locked loop technology are not new technologies and are decades old, but they still play an important role in modern radio. In fact, if you want to have synchronous detection, you must have secondary frequency conversion, these technologies have long existed, some manufacturers have not advertised, and some manufacturers have publicized, so they are gradually known to the majority of enthusiasts.
Although there is no major change in broadcasting technology, for consumers, there is no need to buy a radio with a relatively high price in order to pursue a clearer background, in fact, a DSP full-band radio of about 100 yuan can fully meet your needs, and for long-distance DX is more suitable to buy antennas. The antenna does more to the signal than the radio itself.