75uS is the time constant used for a high-pass filter to enhance the high frequency audio before transmission to help reduce noise upon reception. The PLL is the portion of the IC which locks your chosen transmission frequency to the crystal reference X1. The PLL portion also contains an oscillator circuit which works in conjunction with the external parts of D5 and the STUB (that weird trace on the back of the board). D5 is called a varactor diode, and is a special variety of diode that is connected backwards. As a reverse DC voltage is applied across the diode, its capacitance varies.
-0011 0110 0011 represents 3 0110 represents 6 - 36 Exercise 1.3.6 Represent the hexadecimal value f6 16 in binary and decimal. Show the steps of conversion that you used. - The best way I feel to do this propose is to change it to binary first. - F is 1111 - 6 is 0110 - 11110110 in binary - Then do the decimal step , 246 Lab 1.3 Reviews Explain why it is important to know how many system words will fit in a primary storage device on a computer (such as the hard drive). -So that you know how much ad primary storage unit can hold.
The ADC may be used in simple digital display devices e. g. thermometers, light meters but it may also be used in digital sound recording and in data acquisition. However, a digital-to-analogue converter (DAC) is used to change a digital signal to an analogue signal. A DAC takes a series of binary numbers and converts it to an analogue signal. It is common to find a DAC in the gain-control system of an op-ampwhich in turn may be used to control digital amplifiers and
What is the frequency of light if its wavelength is 5.4 X 10-5CM? (5.6 X 1014 Hz) ______________10. Which would have the higher frequency, light of wavelength of 521 nm or light with a wavelength of 605 nm? (521 nm) ______________11. Which would have the longer wavelength, light with a frequency of 4.5 X 1014 Hz or light with a frequency of 6.19 X 1014 Hz?
Binder Groups- Cable pairs are typically arranged under the cable sheath in binder groups 15. Hybrid/ Composite Cable- An assembly of two or more cables (of the same or different types or categories) covered by one overall sheath/ An RCA connector, sometimes called a phono connector or cinch connector, is a type of electrical connector commonly used to carry audio and video signals. 16. Pulling Cables17. Wavelengths of Light- the distance between two
3. Based on the breakdown of the decimal and binary systems in this lab, describe the available digit values and the first four digits of a base 5 numbering system. You can use the binary system as a reference, where the available digit values are 0 and 1 and the first four digits are 1, 2, 4, and 8? = 4. Using the Internet and the Help files in Excel, explain why creating a converter from decimal to binary would be more difficult to construct.
Calculate the impedance by the measured values of voltage and current from the oscilloscope. Also calculate the impedance from = − C. Answer: Impedance, Z = 5∠0 34.65 60.48°) = 173.25 - 60.48⁰ = 85.37 Ω - j150.76 Ω Again, XC = 1/ = 1/ (6280 x 10-6) = 159.24
4 | 12 | 16 | 4,094 | 11111111.11111111.11110000.00000000255.255.240.0 | /20 | x.y.N*16.0 | 12) Explain the reasoning behind the concepts of “subnet zero”? Subnet Zero If a network address is subnetted, the first subnet obtained after subnetting the network address is called subnet zero. Consider a Class B address, 172.16.0.0. By default the Class B address 172.16.0.0 has 16 bits reserved for representing the host portion, thus allowing 65534 (216-2) valid host addresses. If network 172.16.0.0/16 is subnetted by borrowing three bits from the host portion, eight (23) subnets are obtained.
To be able to show all 16 possible numbers 0-15 you can change the circuit so that the most significant bit (the eights place) is shown by an LED and the rest of the number is displayed on the MAN72, this would then be a successful binary to octal number system conversion circuit. Lab 4 – Logic Gates Materials: - 7400 quad 2-input NAND gate - 7402 quad 2-input NOR gate - Two 1.0 kΩ resistor Purpose: The purpose of this exercise was to set up a simple NAND or not and gate and a NOR, or not or, gate. Once set up, using one of the resistors to ground for a logic of one and a simple jump to ground for a logic of zero, the goal was to test the truth tables for these two gates. Procedure: The setup was incredibly simple, we simply set up and VCC’d the ICs and then began to test. The trouble came when our results were not matching the anticipated theoretical results.
ECG signals were recorded using RMS ECG-32 Super Spec (RMS, India) with a sampling frequency of 256 Hz/channel. Raw ECG signals were filtered using a low- and high-pass filter with cut-off frequencies of 0.003 to 0.4 Hz. The power line interference noise (50 Hz) was eliminated using a notch filter. Muscle artifacts were removed by selecting the EMG filter (cutoff 70 Hz). Acquired ECG signals were stored in the computer, and an offline analysis was performed.