Conversion of MMDS surplus for 2304 MHz
... Tuning the UHF oscillator is easily done w/o a spectrum analyzer, though one is recommended to ensure there are no spurs. Each stage has a TP ( simple diode detector ) that measures the signal a the input of each doubler and he prior stage adjusted for max voltage. A check for close in spurs needs t ...
... Tuning the UHF oscillator is easily done w/o a spectrum analyzer, though one is recommended to ensure there are no spurs. Each stage has a TP ( simple diode detector ) that measures the signal a the input of each doubler and he prior stage adjusted for max voltage. A check for close in spurs needs t ...
Morse/PSK Reader Specification: Limitations:
... PSK31 / PSK63 automatic frequency control (AFC) only locks +-5Hz from the center of 625Hz in PSK31 mode, +-10Hz in PSK63 mode. AFC does not follow the received signal if it drifts out of the locking range. Fairly stable transceivers on both sides are required. Bar graph indicator is provided to aid ...
... PSK31 / PSK63 automatic frequency control (AFC) only locks +-5Hz from the center of 625Hz in PSK31 mode, +-10Hz in PSK63 mode. AFC does not follow the received signal if it drifts out of the locking range. Fairly stable transceivers on both sides are required. Bar graph indicator is provided to aid ...
Signal Processing Techniques
... through a lowpass filter to impose the appropriate band limitations on the signal. This filter is known as an anti-aliasing filter. Another method of ensuring the integrity of signal reconstruction is called over-sampling. The Nyquist theorem states that it is possible to completely reconstruct a si ...
... through a lowpass filter to impose the appropriate band limitations on the signal. This filter is known as an anti-aliasing filter. Another method of ensuring the integrity of signal reconstruction is called over-sampling. The Nyquist theorem states that it is possible to completely reconstruct a si ...
Chapter 10 - Electrical, Antenna and RF Safety
... • Confine antenna radiation to the radiating elements. Provide a single, good station ground, and eliminate radiation from transmission lines. Use good coaxial cable, not open-wire lines or end-fed antennas that come directly into the transmitter area. • No person should near any transmitting antenn ...
... • Confine antenna radiation to the radiating elements. Provide a single, good station ground, and eliminate radiation from transmission lines. Use good coaxial cable, not open-wire lines or end-fed antennas that come directly into the transmitter area. • No person should near any transmitting antenn ...
An electronic implementation of amoeba anticipation
... The learning ability of the circuit can be shown by using a fourth pulse following the learning pulse sequences, as shown in Fig. 4. The resulting oscillation obtained for the fourth voltage pulse is much more pronounced in the case of a periodic pattern compared to an arbitrary pulse sequence (see ...
... The learning ability of the circuit can be shown by using a fourth pulse following the learning pulse sequences, as shown in Fig. 4. The resulting oscillation obtained for the fourth voltage pulse is much more pronounced in the case of a periodic pattern compared to an arbitrary pulse sequence (see ...
Series Circuits
... Power can be calculated as the product of I•∆V. Assuming each circuit is powered by the same battery, the ∆V across the whole circuit will be the same for each circuit. Yet the current will be greatest in the 2-bulb circuit since adding more resistors (light bulbs) decreases the current. So the I•∆V ...
... Power can be calculated as the product of I•∆V. Assuming each circuit is powered by the same battery, the ∆V across the whole circuit will be the same for each circuit. Yet the current will be greatest in the 2-bulb circuit since adding more resistors (light bulbs) decreases the current. So the I•∆V ...
Analysis of Low Pass Filter and Voltage Dividers
... The MultiSim analysis was conducted with a voltage source of 4 Volts, whereas the experiment will be conducted with a voltage source of 4 kV. The simulation could not be done with 4 kV, as some ...
... The MultiSim analysis was conducted with a voltage source of 4 Volts, whereas the experiment will be conducted with a voltage source of 4 kV. The simulation could not be done with 4 kV, as some ...
Lab 5
... Obviously, the power gain can’t result in more actual output power than the power supplies can provide. Usually it’s significantly less, even at maximum amplification. Likewise, the output voltage can not exceed either of the power supply voltages. The signal processing and control capabilities of o ...
... Obviously, the power gain can’t result in more actual output power than the power supplies can provide. Usually it’s significantly less, even at maximum amplification. Likewise, the output voltage can not exceed either of the power supply voltages. The signal processing and control capabilities of o ...
Kirchhoff`s Laws oBJEctiVE BaSic principlES
... In 1845 Gustav Robert Kirchhoff formulated laws describing the relationship between voltage and current in electric circuits which include multiple branches. Kirchhoff’s 1st law (current law or junction rule) states that at every point where a circuit branches the sum of the currents flowing towards ...
... In 1845 Gustav Robert Kirchhoff formulated laws describing the relationship between voltage and current in electric circuits which include multiple branches. Kirchhoff’s 1st law (current law or junction rule) states that at every point where a circuit branches the sum of the currents flowing towards ...
HMC549MS8G / 549MS8GE
... The HMC549MS8G & HMC549MS8GE are GaAs PHEMT MMIC Low Noise Amplifiers that are ideal pre-amplifiers for CATV Set Top Box, Home Gateway, and Digital Television receivers operating between 40 and 960 MHz. This high dynamic range LNA has been optimized to provide 3.5 dB noise figure and +27 dBm output ...
... The HMC549MS8G & HMC549MS8GE are GaAs PHEMT MMIC Low Noise Amplifiers that are ideal pre-amplifiers for CATV Set Top Box, Home Gateway, and Digital Television receivers operating between 40 and 960 MHz. This high dynamic range LNA has been optimized to provide 3.5 dB noise figure and +27 dBm output ...
ga-15 - Gibson
... controls necessary to produce a good range of sounds, from clean to overdriven, into its single speaker. The circuit topology has been based on traditional guitar amplifier designs, with new ideas incorporated where beneficial. The preamp and power stage sections are 100% valve. The valves used are ...
... controls necessary to produce a good range of sounds, from clean to overdriven, into its single speaker. The circuit topology has been based on traditional guitar amplifier designs, with new ideas incorporated where beneficial. The preamp and power stage sections are 100% valve. The valves used are ...
DDS RF Signal Generator
... radio and higher frequency circuits in general. In particular, the more complex designs in the RF realms normally require accurate adjustment, which in practice translates into a decent RF signal generator with an internal or external modulation option available. But then, most of you will agree, we ...
... radio and higher frequency circuits in general. In particular, the more complex designs in the RF realms normally require accurate adjustment, which in practice translates into a decent RF signal generator with an internal or external modulation option available. But then, most of you will agree, we ...
Module – 3 Unit – 3 Small Signal BJT Amplifiers
... 2. Out of four h – parameters, two are most important. Which are these? And why the other two have less significance? 3. hi and Zi both represent input impedance in h - and Z systems of parameters but they are most equal. Why? 4. What are r – parameters and how are they superior to h – parameters? 5 ...
... 2. Out of four h – parameters, two are most important. Which are these? And why the other two have less significance? 3. hi and Zi both represent input impedance in h - and Z systems of parameters but they are most equal. Why? 4. What are r – parameters and how are they superior to h – parameters? 5 ...
Modeling a RLC Circuit`s Current with Differential Equations
... In the early 1900’s, a mathematical model was published expressing the process in which light photons hand off valence electrons to latices (such as silicon photovaltaic, or PV cells) and create an electric current and therefore electricity. It was titled ’Shockley-Read-Hall Recombination’[7]. There ...
... In the early 1900’s, a mathematical model was published expressing the process in which light photons hand off valence electrons to latices (such as silicon photovaltaic, or PV cells) and create an electric current and therefore electricity. It was titled ’Shockley-Read-Hall Recombination’[7]. There ...
Wireless World Sep 1996 - Keith
... sources. Characteristics that can vary are mutual conductance, gain, operating grid bias, anode current "impedance, and even usable anode voltage. By comparison, the performance characteristics of, say, a range of 2N3055 epitaxial base output transistor are almost identical, whether made in the ...
... sources. Characteristics that can vary are mutual conductance, gain, operating grid bias, anode current "impedance, and even usable anode voltage. By comparison, the performance characteristics of, say, a range of 2N3055 epitaxial base output transistor are almost identical, whether made in the ...
Manual - Musette Japan
... These amps have a simple straight forward signal path with minimum tone stack attenuation. Types, brands and values of coupling and tone capacitors have been carefully selected; these have tremendous differences in tone and feel, often boils down to ones individual taste. If you feel you need some a ...
... These amps have a simple straight forward signal path with minimum tone stack attenuation. Types, brands and values of coupling and tone capacitors have been carefully selected; these have tremendous differences in tone and feel, often boils down to ones individual taste. If you feel you need some a ...
HT9170 DTMF Receiver
... assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the us ...
... assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the us ...
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.