Thursday, February 23, 2012

Satellite signal Strength Meter reviews

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My wifi signal strength meter is not showing?
I don't remember exactly when it disappeared but I really want it back. I've tried looking in the settings but I can't find it. How do I get it back? Btw, I have a mac.

RF EMF Strength Meter
RF EMF Strength Meter
electronic-components

Order at Amazon for $259.99
 
What is a tv field strength meter? what is it for?
any web links that contain discussion about tv field strength meter will be greatly appreciated! thanks!

TV signals, either over the air (OTA) or cable come to the viewer via RF or radio frequencies. This is what the antenna receives and provides to the back of the TV. A TV Field Strength Meter is a signal strength meter. It measures how much signal is being presented to the TV receiver. There are also versions for satellite reception, however they are usually called satellite signal strength meters.
R T | Read more
Can I use a volt meter to determine the strength of my car battery?
Can I use a volt meter to determine the strength of my car battery? I think the battery is going dead, and want to figure out if it needs to be replaced. What should I look for on teh meter?

No, you can't use a voltmeter. Even if the battery is near dead, it will still produce 12+ volts. It's the amount of current a battery can produce that is most important, and a voltmeter won't tell you that. And even the average ampmeter can't read high enough. Take your car to your local auto parts store. They can test the condition of your battery while it is still in your vehicle. Hope this helps.
Lemar J | Read more
A 10 meter long wire carries a current of 3A to the south. What is the magnetic field strength and direction a?
A 10 meter long wire carries a current of 3A to the south. What is the magnetic field strength and direction at a point that is 10 cm to the east of the wire?

East of the wire the magnetic field is UP and it magnitude = µo*I/2πr = 2.0x10^-7*3A/0.10m = 6.0x10^-6T
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