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yes . electronically it is possible to convert a tv reciver into a crude very low power
transmitter.
however if one has the knowledge to do the conversion, it will be far more simpler
to attach a transmitter device to the video player or camera rather than using a small
section of the TV set as a transmitter
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Is voltage a vector?
Yes, although we call it a phasor, rather than a vector. This is because voltage has displacement, rather than direction.
Why sf6 circuit breaker is mostly used in substations rather than other?
Rather than where? Circuit breakers are always located in substations.
What is relationship between RF transmitter power and distance?
The general relation between distance (d) of a Tx and its power (P) is given by: E=[(30P)^0.5]/d where E stands for the sensitivity of the transmitter in V/m (Volts per meters). E can be assumed 20 uV/m for frequencies below than 200 MHz.
What are the applications of pulse code modulation?
telkom system, CD laser disks, digital audio recording, digitized video special effects, voice mail, digital video. It is also widely used in Radio Control Units. Radio transmitter and receiver for remote controlled cars, planes, boats etc. Often abbreviated with PCM in these. A pulse code modulated radiosignal is more resistant to interference than a normal "old-fashioned" signal.
Why TRF receiver was replaced by superheterodyne?
Superheterodyne is:more sensitive than TRFmore selective than TRFeasier to tune than TRFeliminates the squeal that sometimes happens with TRFis easier to adapt to FM and TV reception than TRFcan be adapted for use with microwave signals to up/down convertetc.
Why Transmitter frequency lower than Receiver?
In general they will be the same.
Why battery life of a pager is better than a cellphone?
Because a pager is just a radio receiver and not a radio transmitter. A cell phone is both a receiver and a transmitter. A receiver uses much less battery power than a transmitter does. And because a pager's disposable alkaline battery holds more power than a cell phone's rechargeable battery.
Why pager has better battery life?
Because a pager is just a radio receiver and not a radio transmitter. A cell phone or a cordless phone are both a receiver and a transmitter. A receiver uses much less battery power than a transmitter does. And because a pager's disposable alkaline battery holds more power than a cell phone or cordless phone's rechargeable battery.
What is a transceiver comprised of?
A transceiver has both a transmitter and a receiver. These are combined to share common circuitry or a single housing. This allows a person to buy just one device rather than having to purchase each of them separately.
What is a duplexer?
A duplexer is a device that allows bi-directional (duplex) communication over a single channel. In radar systems, a device that isolates the receiver from the transmitter while permitting them to share a common antenna. Note 1: A duplexer must be designed for operation in the frequency band used by the receiver and transmitter, and must be capable of handling the output power of the transmitter. Note 2: A duplexer must provide adequate rejection of transmitter noise occurring at the receive frequency, and must be designed to operate at, or less than, the frequency separation between the transmitter and receiver. Note 3: A duplexer must provide sufficient isolation to prevent receiver desensitization.Braimah prosper
What does gay passive mean?
They prefer to be the receiver rather than the giver. They prefer being penetrated rather than penetrating.
How do you create transmitter?
we can create transmitter by using modulator circuit depending what frequency range you would like to use if you want to use FM range 88 to 108 MHz than you may refer to FM modulators and if you are going to more than 300MHz than you will need RF receiver.
Would it be better to have a sky viewing card rather than a satellite receiver?
Depending on where you live, a Sky Viewing card may be better than a satellite receiver. A Sky Viewing card allows you access to certain channels, as does a satellite receiver.
Electric gate remote not opening gate but lights in remote comes on?
The first thing I would check would be to make sure the gate is operating. Next check and see if another transmitter (opener, clicker, remote) will activate the gate. If the gate does not open using any other device (push button, wired keypad, internal operator control) the gate operator itself is broken and needs to be fixed. If the gate opens off of another transmitter or wireless keypad than your transmitter's battery may be too weak to transmit properly, if it has switch settings inside they may have been moved check to see if they match the settings in the receiver, or your transmitter may have malfunctioned altogether and need to be replaced. If another transmitter does not work but the gate operates off of another device check the receiver make sure it has proper power and see if it recognizes the transmitter either by clicking or by a programming light. If it clicks check the wiring between the transmitter and receiver. If it does not click you may have to replace the receiver. Your manufacturer or installer may be able to help if you call and may have more specific information on their website.
Is arcadeprehacks illegal?
Its not; arcade prehacks is public and it doesn't interact with the website, normal hacks do. No because its just a public game hacked rather than private...
How does wireless remote control for crane works?
Radio remote control: The wireless equipment or machines works on radio waves technology. The artificial radio wave is generated to control the electronic machine such as the overhead crane is called radio remote control. The overhead crane is used for industrial purposes which move and travels above the head at a particular height. The device can move the EOT crane in different directions like cross travel, long travel, and hoist. The hoist is used for lifting and lowering heavy objects. The transmitter and receiver are the two main components that are used for sending and receiving the signal for communication. The radio transmitter has various types such as 8 button radio remote, 12 button radio remote, and joystick radio remote control devices. These all types of devices have their features and specifications. Principle of wireless remote control for crane: The transmitter and receiver are used for communication to control the machines. The transmitter is a handy and small device that can be easily carried by one hand. The operator uses the transmitter device while the receiver is attached to the overhead crane. Communication happens between the transmitter and receiver when the transmitter sends the signal. Whenever the operator pushes the button on the transmitter device a data-packed is sent to the receiver in an encryption form. That means data is first converted to the cipher text from the plain text. When the signal reaches the receiver first decodes the data, the data is converted from cipher text to plain text. This encryption technique is used for the safety of data packets and the communication is not affected by the external entity. More than 10 times in a second communication happens between the transmitter and receiver. And the transmitter device can range from 10 meters to 200 meters distance for communication. While communicating with the receiver the transmitter device detects many things like how many data packets are sent, the communication, the speed of communication, the loss of data packets, successful transmission, number of errors, the signal quality, the distance, and many more. The hopping method is followed by the transmitter and receiver to circumvent unnecessary interference. The EOT crane remote control device provides the interlocked systems in a pair while in use. That means two buttons in a pair cannot be used at the same time. If an up button is pressed on the transmitter device at that time down button cannot be pressed. And we have to keep pressing the up button until the overhead reaches its destination. Features of overhead crane remote control systems: The radio remote control can range from 10 meters to 200 meters. The device uses the 2.4 GHz frequency band technology. The transmitter device is made in such a way that it prevents corrosion and shock. More than 10 times in a second communication happens between the transmitter and receiver. The communication can range from 10 meters to 200 meters. The transmitter device is highly optimized and customized while in use. The crane remote control coating is so strong that it can be used for harsh industrial conditions. The transmitter is a wireless device and works on the battery or charging systems. The remote control adjusts the power automatically according to the distance. The transmitter device works well at a very low battery also. Precedence of crane remote control: The main advantage of the crane remote control system is that it works on the battery or charging replacement system and hence the overhead crane can be operated from a long distance also. And the operator doesn't have to sit inside the crane which makes risk free. The battery used in the transmitter device is durable and can last long up to 6 months. The communication is very safe and secure between the transmitter and receiver. The communication happens rapidly i.e. 10 times in a second. The transmitter uses wireless technology for communication and if any error or lag is found in the systems then the transmitter stops working immediately. According to the distance, the power is automatically adjusted by the transmitter device. That means if the distance is less between the transmitter and receiver then less power is consumed by the device. And if the distance is far then the power is adjusted according to the distance.
What is meant by repeaters in radio wave propagation?
Radio Masts an SatellitesThe frequencies in the high part of the spectrum from the VHF band and higher can only work line of sight, so the receiver have to see the antenna of the transmitter whatever the power of the transmitter, not like with shortwave where you can transmit around the world as long as you have enough power. Repeaters is usually erected on high sites, it is a receiver tuned to the original transmitters frequency on the other end a transmitter tuned slightly offbeat in other words a bit lower or higher frequency than it's receiver from where any receiver that is in sight can receive the signal.Al the radio masts that is some times visible on mountains and hills are repeaters, the radio ham leagues in most countries have there own network of repeater that is used in the two meter band and higher, repeaters can not be erected on the ocean, so that is what satellites are for.
