76, bcz except 76 all number is in increasing order....!!!
Spread spectrum has the following advantages :
Bluetooth is designed to be a personal area network, where participating entities are mobile and require sporadic communication with others. It is omni directional i.e. it does not have line of sight limitation like infra red does. Ericsson started the work on Bluetooth and named it after the Danish king Harold Biuetooth. Bluetooth operates in the 2.4 GHz area of spectrum and provides a range of 10 metres. It offers trfer speeds of around 720 Kbps.
Ups is a uninterputed power supply.inverter is invet the load in DC to AC than load taking the AC.it will be convertor is convet AC to DC that time battery is charged.battery connections in series..
Its not necessary that a power plant uses only two rectifiers, it depends on the load present at the site and the capacity of the rectifier or SMPS. Suppose the load at the site is 120 Amps and the SMPS capacity is 2000W or the current capacity of the recifier is 50 Amps. In that case 3 or more rectifiers is preffered. Rectifiers is used to balance the load in each phase.
To be usable for direct sequence spreading, a PN code must meet the following conditions :
Handover in mobile communication refers to the process of trferring a call from one network cell to another without breaking the call.
There are two types of handover which are as follows :
Hard Handoff : hard handoff is the process in which the cell connection is disconnected from the previous cell before it is made with the new one.
Soft Handoff : It is the process in which a new connection is established first before disconnecting the old one. It is thus more efficient and smart.
Walsh codes have the following drawbacks :
Different categories of antenna are as follows :
current is depending upon the load. ByOhm's law,
V -lR,here load is variable.v-230v so current is depending upon your load
You should hire me because I meet the eligibility criteria asked by you. Even I had the experience in this relevant field. I am a good team player. For the second question at the end of the interview you will be clear enough of my knowledge and my potential. That will help you to decide whether u sud hire me or not.
Operating Ratio = Total revenue / Total expenses
Building penetration: Building penetration depends on the material used for construction and architecture used. This varies building to building and is based on building construction.
Building Height Effect: The signal strength is always higher at top floor and generally floor gain height is about 2.7dB/floor which is not dependent on building construction.
Building Floor Reception: The signal isolation between floors in a multi floor building is on the average about 20dB. Within a floor of 150 * 150 feet, the propagation loss due to interior walls, depending on the wall materials is about 20 dB between the strong and the weak areas.
When a radio wave travels into the ionospheric layer it experiences refraction due to difference in density. The density of ionospheric layer is rarer than the layer below which causes the radio wave to be bent away from the normal. Also the radio wave experiences a force from the ions in the ionospheric layer. If incident at the correct angle the radio wave is completely reflected back to the inner atmosphere due to total internal reflection. This phenomenon is called ionospheric reflection and is used in mobile communication for radio wave propagation also known as ionospheric bending of radio waves.
In a jk flip flop(level triggerd) when J=1,k=1......the output Q continuosly keep changing between 1 and 0 as long as clock is high.....this is called race around condition.
GPRS services are defined to fall in one of the two categories :
Some of the GPRS services are not likely to be provided by network operators during early deployment of GPRS due in part to the phased development of standard. Market demand is another factor affecting the decision of operators regarding which services to offer first.
The whole of the geographical area is divided into hexagonal shape geometrical area called cell and each cell having its own trceiver. Each BTS (cell site) allocated different band of frequency or different channel. Each BTS antenna is designed in such a way that i cover cell area in which it is placed with frequency allotted without interfering other cell signals. The design process of selecting and allocating channel groups for all of the cellular base station within system is called frequency reuse.
network management center.
An artificial intelligence ic the branch of science which makes the computers to act as an human beings. Yes AI is dangerous because it is leading us down to dystopia. it is exploits natural human zoomorphism.
A discrete-time signal is defined by specifying its value only at discrete times, called sampling instants. When the sampled values are quantised and encoded, a digital signal is obtained. A digital signal is obtained from the analog signal by using an analog-to-digital converter. This entire process is referred to as the conversion of signals from analog to digital form.
Properties of the ROC for the z-Trform :
Functions of BSS are as follows :
When Trmission power increase the sensitivity of the antenna increase and so the threshold value decrease.
Advantages of CDMA are as follows :
CDMA stands for Code Division Multiple Access which uses digital format. In CDMA systems several trmissions via the radio interface take place simultaneously on the same frequency bandwidth. User data is combined at the trmitter’s side with a code, then trmitted. On air, all trmission get mixed. At the receiver's side the same code is used as in the trmitter’s side. The code helps the receiver to filter the user information of the trmitter from incoming mixture of all trmissions on the same frequency band and same time.
Voltage is referred as Potenial difference between two points.potential me its force.
Various types of number for network identity are as follows :
Once the signal is coded, modulated and then sent, the receiver must demodulate the signal. This is usually done in two steps :
Here are some advantages of GSM :
Following are the parts of network management system :
While both provide backup power during mains outage, with the UPS the switch is instantaneous whereas with the Inverter there is a gap of a second or two. This gap is OK for household gadgets such as lights, f, fridge, etc. but not OK for computers.
In technical terms:
UPS: The mains power comes to the UPS. The AC is converted to DC and this DC is constantly charging the battery. The output of the battery is fed to the Sine wave inverter and it converts DC to AC and this feeds the equipment. Since power out is always drawn from the battery, there is no time lag when mains swicthes off; it justs stops the battery from being charged and the UPS continues to supply power till the battery runs out.
Inverter: The mains power comes to the Inverter. This is directly sent to the output but the AC is also converted to DC and this DC is constantly charging the battery. A sensor and relay mechanism checks whether the mains is ON or OFF.
When the main switches OFF, the relay actuator triggers to switch from mains to inverter. Rest is same like the UPS. Because of this sensor and relay, there is a gap between triggering.
UPS involves more costly circuitary and is therefor more expensive to make and sell.
flip flops have clock signal whiles latches dont need any clock pulse.
Some selected applications or digital signal processing that are often encountered in daily life are listed as follows:
pulse code modulation