Radio how many watts

In the broadcasting industry, a dark television station or silent radio station is one that has gone off the air for an indefinite period of time. Usually unlike dead air broadcasting only silence , a station that is dark or silent does not even transmit a carrier signal.

Just from looking at the specs, this device probably draws at least half an amp- which is not an insignificant load. That current draw would only be when it is turned on. Clearly, that is not a problem. That being said, unless the battery is old or the transmitter is left on for days, hours of being left on should not be a problem for the battery.

High Electricity Bills? Pierino Peel Explainer. How many watts does a fan use? Fans range in size from 36 inches to 56 inchesusing 55 to watts , a typical 48 inch ceiling fan will use 75 watts. Albar Shim Explainer. How many watts does a computer use?

A desktop computer uses between 60 and watts , depending on whether it is idle. A laptop consumes 15to 45 watts. A inch LCD monitor uses an average of 25 watts , while an older inch cathode ray monitor would use about 80 watts.

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Most electric heaters use 1, watts , butsome are slightly less or slightly more. Let's go ahead and assumeyou've got a 1, watt heater. Since 1, watts equals 1 kilowatt, that means your heater uses 1. Meriem Krols Pundit. How many watts does a microwave use? Christinia Romo Pundit. How far can you communicate with a ham radio? With a 2 metre mobile radio in your car, youcan talk directly to other hams 15 or 20 kilometres away. Byoperating through a repeater station, that same radio can reliably reach hundreds of kilometres.

With an HF high frequency radio , you can reach the entire world if theconditions are favorable. Khamiss Pastreiter Pundit. What frequencies can a ham technician use? Horacio Cantabella Pundit. Do you need a license to operate a ham radio? Gurmail Labatqueen Teacher. How much does it cost to get a ham radio license?

One makes 10W and the other 20W. We know that the doubling of wattage only leads to an increase in 3dB, but to double the sound output, we need to increase the SPL level to at least 10 dB.

This means a ten times increase in wattage leads to doubling of loudness. When it comes to a great sound experience, the car stereo should be powerful enough to provide enough wattage output needed by amplifiers, speakers, and other audio components. In general, a watt car stereo is good if you would like to listen to your stereo at higher volumes. But remember, these are peak watts, not the RMS. Unfortunately, many car stereo manufacturers use this marketing trick.

In many cases, a car stereo is getting power from an audio amplifier chip rated at 50 watts for each of four channels. For example, in Pioneer, this is a Mosfet built-in amp. In RMS wattage, it turns out to be 13 — 18 watt per channel. This amount of power will not be able to deliver continuous maximum output at higher volumes. Wattage sets up an upper limit on how much loader your sound system can go without distorting your favorite song. The amount of wattage required for a car radio depends on your taste in music.

If you listen to light jazz, classical music, then 50 watts per channel is sufficient. But if you like to listen to uncompressed loud music and have over 90dB speakers, then 50 watts per channel out of the stereo will not impress you.

As I mentioned earlier, many car stereos are labeled with a 50W per channel. For 50 watts per channel, the actual RMS output is between 10 watts, which is not very powerful for good sound quality. In that case, you need to upgrade your car audio with an external amplifier with at least W RMS if you want to have a real improvement in the sound quality.

For good audio output, the ratings of speakers, radio, and amp must match but matching speaker impedance, and receiver wattage is complex and technical work. It is OK to connect higher wattage speakers with the radio, but if you are using a radio with very low power compared to speakers, your audio experience will not be great.

You will end up increasing the volume, but the sound from the speakers will remain the same. It may also happen that the radio or amp may burn itself because you are demanding more power. I always recommend using an amplifier with the RMS output per channel around 1. What is happening, in this case, is that speakers are not able to dissipate excess heat generated by extra wattage , which in turn burns the coil spring. To decide whether a car radio or amplifier and a set of speakers can work together or not, you have to consider three parameters:.

Impedance is the electrical resistance offered by a component, and it is measured in ohms. The most common impedance ratings in car audio are one, two, or four ohms.