Tag Archives: signal
RF Generators With regard to Prototype production
Electronic devices used for creating signals with transmission frequencies are done with the assistance of radio frequency generators, also known as RF generators. The way in which AM radios were created is originally the reason for the term “radio frequency.” Signal frequencies produced when we talk, also known by the term “audio frequencies,” tend to not go very far. Range was expanded by placing the audio frequencies of voice or music on top of a radio wave, which could be transmitted many miles. A radio frequency of 100 kilohertz can be accomplished by AM transmitters.
RF, or radio frequency, even when not equipment that is a radio, still indicates the transmission frequency. RF frequencies may be found in everyday items such as cell phones, which measure at is estimated at 900 megahertz, and the standard GPS is approximately 1.5 gigahertz. RF generators are needed in order to convert the audio frequency for each of these transmission mediums.
Signal is multiplied further up to the transmission frequency, which generates a low frequency of 44 kilohertz for broadcasting a digital signal from a satellite. By combining digital and transmission signals together, which were generated by the RF generator, you’re producing a modulated signal, which is then transmitted to the satellite. Any satellite home receiver works going the other way using this same concept. Signal generators will boost the broadcast received and convert it to a 44 kilohertz baseband frequency.
Requiring a substantial amount of power to reach the satellite, the RF generator can be utilized in broadcasting work. This equates to a generator that is large, costly, and requires a lot of power. Conversely, your satellite receiver uses a much lower-power generator, which is in turn, more affordable and smaller. In fact, for any system, whether it be satellite radio, cell phones, or FM radio, there are always a lot more receivers manufactured than transmitters. This generally requires that receiver manufacturers design their components fully to the the board level. Using modular components costs too much for these units which must be priced at their absolute least expensive to be able to compete in the market.
Fabrication of archetype units, which have the identical form and functionality as the end product, are produced by competing businesses often. Having the potential for being really expensive and taking up a lot of time, even a slight modification is highly challenging with this type of tactic. And changes are always required, regardless if the prototypes are very similar to earlier manufactured products. A better method is to start with a prototype unit constructed with off-the-shelf components. For example, if you are planning to try it, you’ll find it much easier to buy an all-purpose generator versus spending time developing your own RF generator.
This needs to be accomplished 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 enable you to try out different alternative design paths right away. Instead of having the first look take two years, a prototype unit can be put together for managers and investors in only ninety days.
Video Splitters: Types and Applications
What is a Video Splitter?
A video splitter, also known as a video distribution amplifier, enables the video signal from a single video source to be replicated and simultaneously broadcasted to multiple displays. The unit’s input is connected to a video source, like a DVD player, and the outputs are connected to different displays, such as flat screen TVs.
Video splitter models vary in the type of signals they broadcast. Some video splitters support an analog signal (VGA, S-Video, component video, composite video), while other video splitters support a digital signal (HDMI, DVI, DisplayPort). Many video splitters also support analog and/or digital audio signals. Video splitters are ideal for many applications where high quality video on multiple displays is needed, including: digital signage, tradeshows, point-of-sale retail stores, airports, and classrooms.
Standard Video Splitter vs Video Splitter with Built-in Extender
There are two main types of video splitters: standard video splitters and video splitters/extenders (also known as video splitters with built-in CATx or fiber optic extension). With a standard video splitter, the video source and displays directly connect to the splitter. A video splitter/extender system, on the other hand, consists of two components: the video broadcast unit, which connects to the video source, and a receiver for each remote display. The units are interconnected by CATx cable or fiber optic cable, depending on the model.
Both types of splitters serve the same function of replicating the video signal from a video source and broadcasting the signal to multiple displays. However, video splitters/extenders offer more flexibility because the displays can be located at further distances – allowing the displays to be placed in different rooms within a building.
Active vs Passive Splitting
Active video splitters have a powered signal driver or amplifier that boosts the power of the original signal level to avoid quality loss from the splitting process. This allows the output signals to match the strength of the input and enable the signal to be sent over a longer distance without any degradation of quality. Comparatively, passive video splitters use impedance-matching components, which do not require power. Some potential issues caused by passive video splitters include a weak signal due to attenuation and ghosting as a result of impedance mismatch.
While both analog and digital signals can be used with active splitting, passive splitting is almost exclusively used for analog video. Digital signals do not lend themselves to passive splitting due to the difficulty in matching impedance without significant attenuation. Additionally, with the prevalence of content protection, such as HDCP (High-bandwidth Digital Content Protection), passive splitters are unable to provide the decryption and encryption process required to display the video signals on multiple displays.
Network Technologies (NTI) offers a variety of active video splitters and video splitters/extenders for A/V applications that require high quality video on multiple monitors. NTI’s video splitters are hardware-based solutions known for their ease of use, reliability, high performance, and crisp and clear video resolutions. Video signals supported include: DVI, HDMI, VGA, S-Video, and Component video. Video splitters/extenders offered can locate displays at distances up to 1,000 feet away over CAT5 cable and 3,280 feet away over fiber optic cable.
Video Splitters: Types and Applications
What is a Video Splitter?
A video splitter, also known as a video distribution amplifier, enables the video signal from a single video source to be replicated and simultaneously broadcasted to multiple displays. The unit’s input is connected to a video source, like a DVD player, and the outputs are connected to different displays, such as flat screen TVs.
Video splitter models vary in the type of signals they broadcast. Some video splitters support an analog signal (VGA, S-Video, component video, composite video), while other video splitters support a digital signal (HDMI, DVI, DisplayPort). Many video splitters also support analog and/or digital audio signals. Video splitters are ideal for many applications where high quality video on multiple displays is needed, including: digital signage, tradeshows, point-of-sale retail stores, airports, and classrooms.
Standard Video Splitter vs Video Splitter with Built-in Extender
There are two main types of video splitters: standard video splitters and video splitters/extenders (also known as video splitters with built-in CATx or fiber optic extension). With a standard video splitter, the video source and displays directly connect to the splitter. A video splitter/extender system, on the other hand, consists of two components: the video broadcast unit, which connects to the video source, and a receiver for each remote display. The units are interconnected by CATx cable or fiber optic cable, depending on the model.
Both types of splitters serve the same function of replicating the video signal from a video source and broadcasting the signal to multiple displays. However, video splitters/extenders offer more flexibility because the displays can be located at further distances – allowing the displays to be placed in different rooms within a building.
Active vs Passive Splitting
Active video splitters have a powered signal driver or amplifier that boosts the power of the original signal level to avoid quality loss from the splitting process. This allows the output signals to match the strength of the input and enable the signal to be sent over a longer distance without any degradation of quality. Comparatively, passive video splitters use impedance-matching components, which do not require power. Some potential issues caused by passive video splitters include a weak signal due to attenuation and ghosting as a result of impedance mismatch.
While both analog and digital signals can be used with active splitting, passive splitting is almost exclusively used for analog video. Digital signals do not lend themselves to passive splitting due to the difficulty in matching impedance without significant attenuation. Additionally, with the prevalence of content protection, such as HDCP (High-bandwidth Digital Content Protection), passive splitters are unable to provide the decryption and encryption process required to display the video signals on multiple displays.
Network Technologies (NTI) offers a variety of active video splitters and video splitters/extenders for A/V applications that require high quality video on multiple monitors. NTI’s video splitters are hardware-based solutions known for their ease of use, reliability, high performance, and crisp and clear video resolutions. Video signals supported include: DVI, HDMI, VGA, S-Video, and Component video. Video splitters/extenders offered can locate displays at distances up to 1,000 feet away over CAT5 cable and 3,280 feet away over fiber optic cable.