No thay are not all using "Microwaves" , only the oven. The rest use Radio frequency.As we know, Microwaves are now used in almost all domestic communication. They are used in Mobile comm, Wif-fi, bluetooth, Microwave Ovens, Wireless & automation, etc.,
No thay are not all using "Microwaves" , only the oven. The rest use Radio frequency.
https://en.wikipedia.org/wiki/Radio_frequency
Hi pyros,
No, You can ref these links...
https://en.wikipedia.org/wiki/Wi-Fi
https://en.wikipedia.org/wiki/Bluetooth
Moreover, there is no information about that in your link. Any source for your information?
There is an over lap between Microwave and rf frequencies. The overlap is from 300MHz to 3GHz rang. I come from a back ground in two way radio communicatoins and would never consider WiFi and Bluetooth Microwave. The micro wave stuff I have worked on is huge. The radar on a the big ships will kill every sea gull around it for 50 feet when it is turned on, now thats Micro Wave not the thing you stik in your ear. Micro Waves can hurt and kill you, RF will not as easy.
Only that it can kill you!the degree of power has no bearing on it.
Only that it can kill you!
I dont know a better way to discribe the differance between RF and Microwaves that share the same band. Do you?
This statement is wrong, or it just doesn't make sense. Amplitude is usually with reference to power, not voltage. Though it can be expressed that way when referenced to a specific impedance.I've heard that Wi-fi uses a higher amplitude(voltage) wave, whereas bluetooth uses lower amplitude.
Well, that's Okay, but how does a Wifi docket only pick up wifi signal, and bluetooth docket pick up only bluetooth signal.
This quote is inaccurate and not correct anyway.Micro Waves can hurt and kill you, RF will not as easy.
.....
The definition on Wikipedia seems pretty bizzarre:
https://en.wikipedia.org/wiki/Microwave
....
There is an over lap between Microwave and RF frequencies. The overlap is from 300MHz to 3GHz rang. I come from a back ground in two way radio communicatoins and would never consider WiFi and Bluetooth Microwave. The micro wave stuff I have worked on is huge. The radar on a the big ships will kill every sea gull around it for 50 feet when it is turned on, now thats Micro Wave not the thing you stik in your ear. Micro Waves can hurt and kill you, RF will not as easy.
....
I dont know a better way to discribe the differance between RF and Microwaves that share the same band. Do you?
Hi trash, any ref please... Because in schools we have been learning by expressing in terms of voltage. But any links that which can sprinkle something abt this will help me regarding this.This statement is wrong, or it just doesn't make sense. Amplitude is usually with reference to power, not voltage. Though it can be expressed that way when referenced to a specific impedance.
They use different frequencies, even though they are in the same band.
When there is an overlap they use different modulation and coding schemes.
I'm not sure which schools would be teaching RF in terms of voltage instead of power.any ref please... Because in schools we have been learning by expressing in terms of voltage.
Sorry, I should be a little more clear about it. While some of the channels of bluetooth overlap with wifi, and they share the same spectrum and even their sidebands, they do not equally share frequencies. I'm trying to think of an example which is easier to visualise, but I'm finding it more difficult to describe this behaviour than I thought.Wi-Fi uses the same radio frequencies as Bluetooth,
I'm not sure which schools would be teaching RF in terms of voltage instead of power.
There's a simple formula for converting dBuV into dBm. 0dBm = 107dBuV @ 50 ohms or 108.8dBuV @ 75 ohms RF power is almost always expressed in Watts or dBm (milliwatts). Occasionally the receive voltage is expressed in dBuV.
....
Basically there is no difference, an electromagnetic wave is an electromagnetic wave.How do radiations from Microwave Oven differ with those used for communication purposes?
No idea! Reduces cost compared with what?Also, i found that 2.4Ghz/5Ghz reduces the costs. But How?
Switch on the laptop wireless card and let it search for nodes etc and try them.Also is there anyway i know where i can get free SSIDs/Wifi(unpassword prot) access points in certain area? (Usually when travelling)
Some insulating materials exhibit high losses at high frequencies, and so they dont make for good capacitors in RF circuits.Also, i found that there are special plastic containers for Oven, dont you think that all plastic containers can be used???
I learnt that it reduces cost when compared to other freq.....
No idea! Reduces cost compared with what?
Hey, i understood... but i need to stop each and every place in that case. I was asking like, if there a way in which the comp(/tablets) gives an alarm or shows in the display when a free access point is located(usually when traveling).Switch on the laptop wireless card and let it search for nodes etc and try them.
And they make really bad food containers for use in an microwave oven. The container dissipates the energy and gets hot rather than the food.
JimB
There are apps for that or Mobile "WiFi Signal Locators" Keyfob size signal detectors but thay will not know if the signal is password locked just that it is there.Also is there anyway i know where i can get free SSIDs/Wifi(unpassword prot) access points in certain area? (Usually when travelling)
There are apps for that or Mobile "WiFi Signal Locators" Keyfob size signal detectors but thay will not know if the signal is password locked just that it is there.
https://www.ebags.com/product/mobile-edge/wifi-signal-locator/96780?productid=&adtype=pla&sourceid=adwproduct&couponid=55583734&gclid=cpvhjo74va0cfuio4aodufx0-g
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?