Active direct boxes require power such as a separate power supply, 48V phantom power, or a battery to activate their circuits while passive direct boxes convert the signal from high-Z to low-Z using only a transformer. Passive DI's do not require a power supply to work.

Active RFID tags have a battery, which is used to run the microchip's circuitry and to broadcast a signal to a reader (the way a cell phone transmits signals to a base station). Passive tags have no battery. Instead, they draw power from the reader, which sends out electromagnetic waves that induce a current in the tag's antenna. Semi-passive tags use a battery to run the chip's circuitry, but communicate by drawing power from the reader. See similar questions...

Passive direct boxes use a transformer to convert the electrical signals while active direct boxes use an amplifier circuit. Passive boxes have the advantage of providing isolation which can reduce ground hum in systems. See similar questions...

Ans. An active component is a VisualWorks component whose widget is a View and has a Model and a Controller. A passive component is a VisualWorks component whose widget is not a View and it does not depend on a model and a controller. See similar questions...

You can either apply as an active or passive participant. Active means, you want to present your work at the congress. Passive means, you will be able to listen to other's presentations and enjoy social program, without presenting anything. See similar questions...

This is somewhat similar to comparing dynamic mics to condensers. Active DI’s have a built-in pre-amp that requires power to run while passive DI’s use a transformer to convert the signal. Both ‘transform’ or convert the instrument’s high-impedance output to a low impedance balanced microphone level. This allows long cable runs without adding unwanted noise and will improve the instrument’s sound quality. The J48 uses phantom power to derive its power source. See similar questions...

Answer: Active RFID tags have a battery, which is used to run the microchip's circuitry and to broadcast a signal to a reader (the way a cell phone transmits signals to a base station). Passive tags have no battery. Instead, they draw power from the reader, which sends out electromagnetic waves that induce a current in the tag's antenna. Semi-passive tags use a battery to run the chip's circuitry, but communicate by drawing power from the reader. See similar questions...

Passive direct boxes are often chosen as they are ‘plug & play’ easy to use. When equipped with a high quality transformer, they can handle exceptionally high signal levels without harmonic distortion. A good one like the Radial JDI™ will process the signal without introducing artifacts such as phase distortion. This is achieved because the Jensen Transformer we use is extremely well made. See similar questions...

Active sensors pulse energy at a target and measure the return, or reflection. Light Detection and Ranging (LIDAR) and Radio Detection and Ranging (RADAR) are two examples of active sensors. Passive sensors collect the sun's ambient light energy reflected from a surface with no active pulse of energy from the sensor. Film-based and digital cameras, both aerial and handheld, as well as digital satellite sensors, such as Landsat Thematic Mapper, are examples of passive sensors. See similar questions...

Sound quality. There is nothing on the planet that will do a better job than the JDV. It is designed from the ground up to be sonically pure, exceptionally dynamic, and totally transparent. The combination feed-forward design, class-A circuit and 30 volt internal rails combine to put the JDV in a class of its own. See similar questions...

Because a good passive direct box requires a good transformer and these are expensive. The Radial JDI uses a Jensen Transformer and these are considered the best in the world. Active boxes can be made for much less money and will generally sound better than a cheap passive box. See similar questions...

When performing a direct breath alcohol test, the subject blows directly into the testing instrument using a mouthpiece. When performing a passive test, the device is held in front of the subject as they are talking, or they are asked to blow at the device. No mouthpiece is used with a passive device. See similar questions...

Active crossovers are more efficient than passive crossovers. A typical "insertion loss" (power loss due to use) of a passive crossover is around 0.5dB. Active crossovers have much lower insertion losses, if they have any loss at all, since the losses can effectively be negated by adjusting the amplifier gain. Also, with some active crossovers, you can continuously vary not only the crossover point, but also the slope. See similar questions...

Active-Active is referring to full redundancy all the way through and each HDD is actively connected to both initiators at all times, and replacement can be made any time with zero down time. Passive-Active means the replacement on the failed component can only be made system shutting down, and the fail-over path is not active while the other path is still working. Depending how JBOD1 is offline. See similar questions...

Active ROM exercise is performed independently by the client. Passive ROM exercise is performed by a nurse or other health care worker to maintain or restore a client’s mobility. See similar questions...

Both the FTP client and server processes should be capable of active and passive connections. When a process is in passive mode, it will "listen" (accept incoming connections) on a data port. The active process will then "connect" (outgoing) to that port and the transfer will start. The FTP request command determines the direction of the connection. See similar questions...

Active GPS antennas include a built-in Low Noise Amplifier which provides sufficient gain to overcome coax cable losses while providing the proper signal level to the GPS receiver. Active GPS antennas require power from the GPS receiver to operate, through the GPS receiver antenna connector. Passive GPS antennas do not include a Low Noise Amplifier and are best suited to GPS applications requiring a short distance, 1 inch to 3 feet, between the GPS receiver and antenna. See similar questions...