Portable radios: Difference between revisions
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# Radio Components | # | ||
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Radio Components | |||
I need some help to complete this one. | I need some help to complete this one. | ||
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RF: Long frequency | RF: Long frequency | ||
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DAB Radios | |||
Alvin explained that for some DAB radios, the design of the chips was not well thought and that could lead to some faulty behaviour. | Alvin explained that for some DAB radios, the design of the chips was not well thought and that could lead to some faulty behaviour. | ||
We had a real life demonstration of it with Tom's radio, a DAB and FM radio that worked just fine for the FM side, but the DAB was working correctly at the beginning when cold, but had some hard time as the components were getting hot.. It turned out that the reason for the dysfunction was a power supply that was not right and slightly above the voltage | We had a real life demonstration of it with Tom's radio, a DAB and FM radio that worked just fine for the FM side, but the DAB was working correctly at the beginning when cold, but had some hard time as the components were getting hot.. It turned out that the reason for the dysfunction was a power supply that was not right and slightly above the voltage nee#ded for the DAB components to work well. | ||
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FM Radios | |||
Another Radio that was brought at the skill share was an FM radio with a broken antenna. The antenna could not be fixed as we had no material to do so, but we had a good explanation from Alvin on the correlation between the length of the wave (with are very long for FM radio) and the length of the antenna. The antenna has to be long enough to resonate with the radio waves we are trying to capture. | Another Radio that was brought at the skill share was an FM radio with a broken antenna. The antenna could not be fixed as we had no material to do so, but we had a good explanation from Alvin on the correlation between the length of the wave (with are very long for FM radio) and the length of the antenna. The antenna has to be long enough to resonate with the radio waves we are trying to capture. | ||
Revision as of 18:26, 5 November 2016
Headline text
Radio Components
I need some help to complete this one.
Headline text
RF: Long frequency
IF: Intermediate frequency
AF: Audio frequency
Headline text
DAB Radios
Alvin explained that for some DAB radios, the design of the chips was not well thought and that could lead to some faulty behaviour.
We had a real life demonstration of it with Tom's radio, a DAB and FM radio that worked just fine for the FM side, but the DAB was working correctly at the beginning when cold, but had some hard time as the components were getting hot.. It turned out that the reason for the dysfunction was a power supply that was not right and slightly above the voltage nee#ded for the DAB components to work well.
Headline text
FM Radios
Another Radio that was brought at the skill share was an FM radio with a broken antenna. The antenna could not be fixed as we had no material to do so, but we had a good explanation from Alvin on the correlation between the length of the wave (with are very long for FM radio) and the length of the antenna. The antenna has to be long enough to resonate with the radio waves we are trying to capture.