Electrical Symbols — VHF UHF SHF
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre. Radio waves with frequencies above the UHF band fall into the SHF (super-high frequency) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, and numerous other applications.
Pic. 1. VHF UHF SHF Library
ConceptDraw DIAGRAM v12 is a powerful software for creating professional looking electrical diagram quick and easy. For this purpose you can use the Electrical Engineering solution from the "Engineering" area of ConceptDraw Solution Park.
Electrical Engineering Solution for ConceptDraw DIAGRAM v12 provides the stencils libraries of ready-to-use predesigned 926 vector symbols, templates and samples that make your electrical drawing quick, easy and effective.
26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM v12 make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Pic. 2. Electrical Engineering symbols
Electrical diagram software will assist you in drawing your electrical diagrams with minimal effort and makes it very easy for beginners. Electrical symbols and smart connectors help present your electrical drawings, electrical schematic, wiring diagrams and blue prints.
Pic. 3. Electrical Symbols — VHF UHF SHF
Most of the electrical symbols can be changed in their appearance, styles and colors according to users' requirements. Electrical symbols are used to represent various electrical and electronic devices in a schematic diagram of an electrical or electronic circuit.
The following table lists some VHF UHF SHF electrical symbols in our electrical diagram software.
| Symbol | Meaning | |
| Electrical Symbols — VHF UHF SHF | ||
 | Discontinuity | |
 | Equivalent series | |
 | Capacitive reactance | |
 | Capacitive reactance 2 | |
 | Inductive reactance | |
 | Resistance | |
 | Inductance capacitance | |
 | Inductance capacitance 2 | |
 | Inductance capacitance 3 | |
 | Inductance capacitance 4 | |
 | Inductance capacitance 5 | |
 | Inductance capacitance 6 | |
 | Inductance capacitance 7 | |
 | Inductance capacitance 8 | |
 | Equivalent shunt | |
 | Capacitive susceptance | |
 | Capacitive susceptance 2 | |
 | Inductive susceptance | |
 | Conductance | |
 | Slide screw tuner | |
 | E-H tuner | |
 | Multistub tuner | |
 | Directional coupler | |
 | Directional coupler 2 | |
 | Mode suppressor | |
 | Rotary joint | |
 | Isolator | |
 | Phase shifter | |
 | Gyrator | |
 | Circulator fixed | |
 | Circulator reversible | |
 | Field polarization rotator | |
 | Field polarization amplitude modulator | |
 | Resonator | |
 | Balun | |
 | Balun 2 | |
 | Mode filter | |
 | Frequency filter | |
 | Frequency filter, high-pass | |
 | Frequency filter, low-pass | |
 | Frequency filter, band-pass | |
 | Frequency filter, band-stop | |
 | Phase shifter (matched) | |
 | Ferrite bead ring | |
 | Line stretcher, male | |
 | Line stretcher, female | |
 | Maser | |
 | Maser, amplifier | |
 | Laser | |
 | Laser, generator | |
 | Ruby laser | |
 | Ruby laser, Xenon lamp | |
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation".
How to Create an Electrical Diagram Using VHF UHF SHF Library
- Open ConceptDraw DIAGRAM v12 new document page.
- Select libraries from Electrical Engineering section.
-
There are a few different ways to place an object into your drawing:
- Click on an object and then click on the document, at the place you want the object to be inserted.
- Perform a drag-and-drop from the library to your document.
- Double click on an object’s icon in the library to place an object in the center of your document.
- Select the Smart Connector tool
. To connect elements using this tool, drag the connector from one connect dot to another.You can use Layers to place connections on different layers.
- Result: Electrical Diagram.
TEN RELATED HOW TO's:
Electrical Symbols, Electrical Diagram Symbols
Electrical Engineering Solution used together with ConceptDraw DIAGRAM v12 drawing facilities makes short a work of drawing various electrical and electronic circuit schemes. A library of vector objects composed from symbols of Analog and Digital Logic elements of electric circuit includes 40 symbolic images of logic gates, bistable switches of bi-stable electric current, circuit controllers, amplifiers, regulators, generators, etc. All of them can be applied in electronic circuit schemes for showing both analog and digital elements of the circuit. Electrical Engineering Solution used together with ConceptDraw DIAGRAM v12 drawing facilities makes short a work of drawing various electrical and electronic circuit schemes. A library of vector objects composed from symbols of Analog and Digital Logic elements of electric circuit includes 40 symbolic images of logic gates, bistable switches of bi-stable electric current, circuit controllers, amplifiers, regulators, generators, etc. All of them can be applied in electronic circuit schemes for showing both analog and digital elements of the circuit.
Electrical Symbols — Lamps, Acoustics, Readouts
Wiring and circuit diagrams use special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, inductors, switches, lamps, acoustic devices, measuring devices and other electrical and electronic components are connected together. 26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM v12 make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
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Electrical Symbols — Analog and Digital Logic
Digital electronics or digital (electronic) circuits are electronics that handle digital signals – discrete bands of analog levels – rather than by continuous ranges (as used in analogue electronics). All levels within a band of values represent the same numeric value. Because of this discretization, relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or parasitic noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry. 26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM v12 make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Electrical Symbols — Switches and Relays
In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations. 26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM v12 make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Electrical Symbols — Semiconductor Diodes
In electronics, a diode is a two-terminal electronic component that conducts primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance to the flow of current in one direction, and high (ideally infinite) resistance in the other. A semiconductor diode is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. Today, most diodes are made of silicon, but other semiconductors such as selenium or germanium are sometimes used. 26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM v12 make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
Electrical Symbols — Stations
A power station is an industrial facility for the generation of electric power. Most power stations contain one or more generators, a rotating machine that converts mechanical power into electrical power. The relative motion between a magnetic field and a conductor creates an electrical current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, oil, and natural gas to generate electricity. Others use nuclear power, but there is an increasing use of cleaner renewable sources such as solar, wind, wave and hydroelectric. 26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM v12 make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.
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Related How To's
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- Electrical Symbols — Analog and Digital Logic
- Electrical Symbols — Switches and Relays
- Electrical Symbols — Semiconductor Diodes
- Electrical Symbols — Stations
- Electrical Drawing Software and Electrical Symbols
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