RF2516 VHF/UHF TRANSMITTER Features
... devices have been simplex, or one-way, links. They are also typically built using surface acoustic wave (SAW) devices as the frequency control elements. This approach has been attractive because the SAW devices have been readily available and a transmitter, for example, could be built with only a fe ...
... devices have been simplex, or one-way, links. They are also typically built using surface acoustic wave (SAW) devices as the frequency control elements. This approach has been attractive because the SAW devices have been readily available and a transmitter, for example, could be built with only a fe ...
Aiken--PhaseShiftOsc..
... The ideal method of adjusting the frequency is to use a triple pot, to control all three phase shift sections. This is not always practical, so only one section is usually adjusted. It is usually best to adjust the last phase shift section, rather than the first one after the amplifier, as it will u ...
... The ideal method of adjusting the frequency is to use a triple pot, to control all three phase shift sections. This is not always practical, so only one section is usually adjusted. It is usually best to adjust the last phase shift section, rather than the first one after the amplifier, as it will u ...
Lesson Plan (Microsoft Word) - Editable but a
... and job qualification requirements? What is salary range for technician who is trained in automotive electrical systems? Have students write a summary of their findings and share it with class. DEMONSTRATION: Use an inductive ammeter or charging system tester to show that amount of ...
... and job qualification requirements? What is salary range for technician who is trained in automotive electrical systems? Have students write a summary of their findings and share it with class. DEMONSTRATION: Use an inductive ammeter or charging system tester to show that amount of ...
Slide 1
... grip of the operating handle of the switch or circuit breaker. (D) Not in Vicinity of Easily Ignitible Material. Overcurrent devices shall not be located in the vicinity of easily ignitible material, such as in clothes closets. ...
... grip of the operating handle of the switch or circuit breaker. (D) Not in Vicinity of Easily Ignitible Material. Overcurrent devices shall not be located in the vicinity of easily ignitible material, such as in clothes closets. ...
Impedance_Matching
... The power delivered to the load, RL and LL, in the original circuit is ___________. Power Factor Correction The capacitance, Cpf, that should be placed in parallel with the load impedance to force the load voltage and current to be in phase (or as close as possible) is ____________. The power delive ...
... The power delivered to the load, RL and LL, in the original circuit is ___________. Power Factor Correction The capacitance, Cpf, that should be placed in parallel with the load impedance to force the load voltage and current to be in phase (or as close as possible) is ____________. The power delive ...
Physical Science Unit 9 * Electricity and Magnetism
... 1. Using only the D cell battery, the copper wire and the flashlight bulb, arrange them in as many ways as you can to make the bulb light. 2. Make a sketch of each set-up in your notebook. Include sketches of failures as well as successes. 3. In your own words, describe the similarities between your ...
... 1. Using only the D cell battery, the copper wire and the flashlight bulb, arrange them in as many ways as you can to make the bulb light. 2. Make a sketch of each set-up in your notebook. Include sketches of failures as well as successes. 3. In your own words, describe the similarities between your ...
What is a line follower Robot
... seeing this reflection line colour must be white or black.If line color is black, reflection will be minumum but if it is white, reflection will be maximum.For the best result line is white, ground is black or vice versa.The outputs which come from sensors are analog.We must convert these analog sig ...
... seeing this reflection line colour must be white or black.If line color is black, reflection will be minumum but if it is white, reflection will be maximum.For the best result line is white, ground is black or vice versa.The outputs which come from sensors are analog.We must convert these analog sig ...
on Logic Design (from your textbook)
... Synthesis of logic functions Synthesis is the process of designing and implementing a logic circuit defined by its functional specification. The expression for f in the previous circuit is said to be in a sum-of-products form, because the OR and AND operations are sometimes called the sum and produ ...
... Synthesis of logic functions Synthesis is the process of designing and implementing a logic circuit defined by its functional specification. The expression for f in the previous circuit is said to be in a sum-of-products form, because the OR and AND operations are sometimes called the sum and produ ...
13cm PSK transceiver for 1.2Mbit/s packet radio
... The input resonator (L1) functions as an open circuit for the input frequency (590MHz) and as a short circuit for the output frequency (1180MHz) of the frequency doubler. In this way the operation of the doubler is less sensitive to the exact cable length and output impedance of the exciter. The out ...
... The input resonator (L1) functions as an open circuit for the input frequency (590MHz) and as a short circuit for the output frequency (1180MHz) of the frequency doubler. In this way the operation of the doubler is less sensitive to the exact cable length and output impedance of the exciter. The out ...
simulation of a superheterodyne receiver
... information. The sensitivity of a communications receiver is a function of the overall receiver gain. In general, higher gain means better the sensitivity. This can be achieved by multiple stages of amplification. There are two types of communications receiver; the Tuned Radio Frequency (TRF) receiv ...
... information. The sensitivity of a communications receiver is a function of the overall receiver gain. In general, higher gain means better the sensitivity. This can be achieved by multiple stages of amplification. There are two types of communications receiver; the Tuned Radio Frequency (TRF) receiv ...
Greenock Academy Physics Department
... Identify from a circuit diagram the purpose of a simple transistor switching circuit. ...
... Identify from a circuit diagram the purpose of a simple transistor switching circuit. ...
AN11 - Designing Linear Circuits for 5V Single Supply Operation
... filtering capability and a shield driving output. In Figure 6a, A1, A2 and A3 accomplish the differential input-to-single-ended output conversion, with RG setting gain. The LT1014’s high open-loop gain permits accurate circuit gain. Offset and drift performance allows use with low level transducers s ...
... filtering capability and a shield driving output. In Figure 6a, A1, A2 and A3 accomplish the differential input-to-single-ended output conversion, with RG setting gain. The LT1014’s high open-loop gain permits accurate circuit gain. Offset and drift performance allows use with low level transducers s ...
Diodes
... (a) Begin with the capacitor disconnected. Observe the half-wave rectified pattern on the oscilloscope. Verify that the frequency of the pattern is 60 Hz. (b) Add the 10-mF capacitor, getting the polarity right, but remove the load resistor. Observe how the capacitor integrates the rectified power t ...
... (a) Begin with the capacitor disconnected. Observe the half-wave rectified pattern on the oscilloscope. Verify that the frequency of the pattern is 60 Hz. (b) Add the 10-mF capacitor, getting the polarity right, but remove the load resistor. Observe how the capacitor integrates the rectified power t ...
Regenerative circuit
The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.