|
Radio frequency generators (RF generators) are electronic components used for starting a signal at a frequency suitable for transmission. The way in which AM radios were made is originally accountable the term "radio frequency." Signal frequencies produced when we talk, sometimes known by the term "audio frequencies," tend to not go very far. When positioning voice audio frequencies over a radio wave, range is then transported for many miles. A radio frequency of 100 kilohertz can be carried out by AM transmitters. In present times the radio frequency, RF, still refers to the transmission frequency, whether or not the device is not a radio. RF frequencies can be found in everyday items such as cell phones, which measure at is estimated at 900 megahertz, and the standard GPS is estimated at 1.5 gigahertz. RF generators are needed in order to convert the audio frequency for each of these transmission mediums. The way this will work is if a satellite transmitter is broadcasting a digital signal at the fairly low frequency of 44 kHz, then the signal is multiplied upwards to the transmission frequency. This is done by integrating the digital signal with the transmission signal created by an RF generator to produce the modulated signal which is transmitted to the satellite. Any satellite home receiver can work going the other way using this same concept. It involves a signal generator which multiplies the received broadcast signal directly back to the 44 kHz baseband frequency. The RF generators used for broadcast work need a lot of power to reach to the satellite. This equates to a generator that is large, expensive, and requires a lot of power. Conversely, your satellite receiver needs a much lower-power generator, which is in turn, less expensive and smaller. In fact, for any system, whether it be FM radio, cell phones or satellite radio, there are always a lot more receivers manufactured than transmitters. This generally mandates that receiver manufacturers design their components all the way to the board level. Using modular components is too expensive for these units which must be priced at their absolute lowest to be able to compete in the market. However, certain companies jump the gun and try to create prototype units with the same form, fit and function as the finished product. With this approach, even minimal changes are very difficult, as well as having the potential to be expensive and time-consuming. The archetypes are comparable with previous products that have been manufactured, and modifications will continue to be necessary for improvement. A more proficient technique would be to use readymade elements for a new archetype. As an example, if you are planning to try it, you will discover it much easier to buy an all-purpose generator versus spending time developing your own RF generator. This needs to be carried out at the same time as the in-house generator layout, or it can be done as an initial measure in order to eliminate serious flaws associated with earlier designs. This will help you to try out different alternative design paths right away. Archetypes can be produced in just a matter of months, instead of the new generator taking years to create. You can find high-quality RF signal generators at reasonable prices if you visit Windfreak Technologies Products. For even more information on Windfreak Technologies Products, visit them at their site, http://www.windfreaktech.com/.
Related Articles -
signal generator, rf synthesizer,
|
