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AM (amplified modulation) radio contain the intermediate frequency transformer.it has IF to mixed the carrier signal into local oscillator signal in a process called heterodyning, resulting in a signal at the difference or beat frequency. Intermediate frequency are used in superheterodyne radio recievers, in which an incoming signals is shifted to an IF for amplication before final destination is done.
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Which three electronic devices contain transistors?
Radios, Televisions & Computers.
Does a frequency counter help a cb radio that much?
For CB's that are both modern and "legal" a frequency counter does not help much at all. However if you have an older radio with continuous tuning (dial with a needle) or are tuning "out of band" (using an illegal modified CB) you may find a frequency counter very useful. No,All the frequency counter does is match the frequency to the radio, to tell you how accurate the radio is, if it is a quality radio it is a waste of time for a more efficent CB radio you would want a RF meter to match the antenna to the radio, this would give you max signal when you key the mike, most of the radios that I have ever used have a signal strength right on the radio. All radios are designed to reject all frequencies except the one it's tuned to. Transmitter accuracy and receiver accuracy are both important for clear reception. CB radio uses 26-27 Mhz with a channel spacing of only 10Khz. If your transmitter's frequency is 5Khz too high and the person you're trying to talk to has a receiver that is a few Khz too low, you may not be able to talk to them at all or the sound will be distorted. All radios can be aligned. Better quality radios will not necessarily hold that alignment better. Antenna matching will affect how strong the signal is but not the frequency accuracy of that signal. A frequency counter will tell you what frequency you are on. It does not help the average CB radio. But it does do a lot for modified cb's with extra channels. A Frequency counter also comes in handy if you are talking on side band, it helps you remember where to set the dial, and makes tuning someones signal in much easier. A Frequency counter will help if you need it. If you dont need it it is a waste of money. ~TeZ~
What are metalloids in transistor radios used for?
The metalloids is combined in transistor radios to make them of high quality.
What prevents multiple wireless transmissions from colliding?
This topic requires a significant knowledge of how radio frequency communications works, both digital and strictly analog. However, in a nutshell signals are multiplexed by frequency, amplitude, phase, time or code division multiplexing. Signals can and still do collide in some systems such as the Aloha system which originally used cab radios for transmission all operating at the same frequency. If two parties recognized a collision they would each back off a random time and retry.
What is the difference between FM and AM radio waves?
AM means Amplitude(=height) modulation, so the frequency stays the same and the message is coded into variations of the strength of the signal. FM stands for Frequency modulation. Here the strength of the signal stays the same and the message is coded into changes in frequency instead.
What does AM and FM stand for in radios?
AM - Amplitude Modulation FM - Frequency Modulation
Were radios invented in 1914?
The FM radio was invented in 1933. It was invented by the inventor Edwin Howard Armstrong. He invented the frequency that allows radios to work.
What 2 way radios frequence will not set off explosives?
No frequency is completely safe.
What frequency do police radios use?
While there are several radio bands in use by law enforcement, there is no one channel or frequency that all use.
How do motorola 2 way radios transmit a signal?
Two way radios should be set at the same frequency. Then, 2 or more persons can communicate with each other via those radios, by pressing buttons and speaking.
Which three electronic devices contain transistors?
Radios, Televisions & Computers.
What does AFC mean on old radio?
Auomatic Frequency Control. Newer radios have it too. It's just not advertised and there is no longer a switch to turn it off like on the old radios.
What are the military cb's?
CBs, or Citizen's Band radios, are two-way radios that operate on a specific set of frequencies designated for civilian use. They are commonly used by truckers, off-road enthusiasts, and emergency services for communication over short distances. Military entities may also use CB radios for non-sensitive communications in certain situations.
Can you use two way radios to transmit video signals?
No the circuits are not designed to handle video frequency
Do most portable radios contain a headphone jack?
Almost all portable radios have a headphone jack. Even radios that are ten years old or more have a headphone jack so its pretty much standard.
Can HF radios communicate with VHF or UHF?
No. The acronyms stand for different, non-overlapping frequency ranges. Since the #1 immutable requirement for radios to be able to talk to each other is that they be on the same frequency, and since HF, UHF, and VHF radios are by definition on different frequencies, that match would be harder to operate successfully than a mixed marriage.
How do you tell what my 2-way radio frequency is?
To find out the frequency you need to buy a frequency counter but they are quite deer so try searching on internet or talk to people that use radios alot and they could tell you
