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Will a RC transmitter and Receiver from different brands work as long as they have the same MHz?
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Would a solar-powered receiver transmitter work on the moon?
As long as the solar cells powering the transceiver (transmitter/receiver), that device should work on the moon.
Why do you use 4 - 20 mili ampere?
A 4-20ma current loop is often used in process control and monitoring systems to signal a value from one point to another. It operates using Kirchoff's current law, in that the transmitter can monitor the current on the loop, knowing that will be the same current at the receiver. Any deviations in reference voltage or ground differentials between transmitter and receiver can then be compensated for at the transmitter. The signal range starts at 4ma, so that the receiver can detect the 0ma condition representing a break in the wire. You can also have multiple receivers on the loop, all in series, so long as the delta voltage at each receiver does not contribute too much voltage to the overall loop. Each receiver will see the same current, again due to Kirchoff's current law.
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 a signal jammer?
A signal jammer or jamming transmitter is a small, low-powered transmitter that interfers with receivers in an area around the jammer. The radius of the area will depend on the power of the jammer. The jammer signal will be "seen" by the receiver and it won't then be able to "see" the little signal of the remotely located transmitter that it is trying to "look at" before you turn on your jammer. The jammer transmits a signal (without modulation - it's just the carrier wave) that radiates from the jammer pretty much in all directions (for an omni-directional antenna - which is what is usually on them). This small signal reaches all receivers within the area of its effective range and "swamps" the receivers in that area. Understand that the transmitters reaching out to receivers are generally "high power" units (their power varying depending on what they're designed to do). The jammer is low power. But because the signal from the transmitter is (almost always) a long, long way away from the receivers in the jammer's area, the signal from the transmitter is very tiny in that area. The jammer, on the other hand, has a "large" signal in that area because it's so close to those receivers. It's the amount of signal that gets to a receiver that is important. If a tiny transmitter (a jammer) is "right on top" of a receiver, it will "hit" that receiver hard compared to the tiny signal getting to that receiver from the (high powered) transmitter many miles away. The general rule for power for a transmitter getting to a receiver is that the signal strength is going to be the inverse sqare of the distance from that transmitter. That means that if you have "x" amount of signal at a given spot from a transmitter and them double your distance from the transmitter, the signal will be 1/d2 or 1/22 or 1/4th the amount you had before. Double the distance again and you're down to 1/16th the original amount of signal. A little transmitter works well to jam a receiver if it's right on top of it. It will "blind" the receiver to the "real" signal from the transmitter it is trying to capture. Jammers are generally a no-no, both ethically and legally. Use your head here and think through your options if you are planning some "experimental" electronics. It is the FCC (the Feds) that get down on individuals who interfere with communications. They play hard ball. Imagine interrupting air-to-ground communications and interfering with air traffic. They'd lock you up and throw away the key. Seriously.
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.
What is the difference between rs232 and rs485 port?
Difference between Rs232 and RS485 is Only Distance RS232 is not for long or far distance .. but RS485 can be use for LONGEST distance ..RS232 is single ended communication where as RS485 is Differential communication.Max.no of receivers in RS232 is only ONE, whereas in RS485 is 32.Max.no of transmitters in RS232 is only ONE whereas in RS485 is 32.IN RS232 there is no pin to change from transmitter mode receiver mode. But, In RS485 have DE pin to set transmitter mode and RI to set receiver mode.
Advantages and disadvantages of FM transmitter?
The advantages are it travels long and far good for long distance the disadvantages are that it takes a while to transfer back
Can you mix two different brands of interior paint?
Yes, as long as they are both oil based or both water based.
Easy science fair projects?
You could test three different Brands of popcorn and time them to see how long they take to pop.
Why is it necessary for amplifiers to be placed at regular intervals along an optical fiber when transmitting over long distances?
Some of the light injected by the optical transmitter is lost along the length of the fiber as the light travels. The optical receiver needs a minimum amount of light to function properly. Therefore optical repeaters must be installed at intervals along the path to keep the light level above the level needed by the last receiver.
What is the frequency band alloted for a long-range FM transmitter?
From 88.5 to 107.9 MHz
Can you replace your dish network receiver to an upgraded receiver purchased on e bay?
As long as it is a Dish Network receiver that is current, it is allowed. However, it has no effect on monthly charges if you choose to use your own receiver.
