FREQUENCY MODULATION - PART I - BASIC PRINCIPLES
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Uploaded by PublicResourceOrg on Apr 24, 2010
FREQUENCY MODULATION - PART I - BASIC PRINCIPLES - Department of Defense 1964 - PIN 28398 - FUNDAMENTALS OF AM AND FM RADIO COMMUNICATION, HOW FM ELIMINATES PROBLEM OF ELECTRICAL INTERFERENCE, FUNCTIONING OF FM RADIO EXAMINED IN DETAIL.
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@jfdonnald If you're talking about the part where the audio wave is rotated vertically, it's just showing the direct effect of changes in amplitude in the input audio wave to changes in frequency in the carrier wave. Remember, the carrier's frequency is represented by the black horizontal line, and movement along that line only changes the frequency.
simplelife1021 1 month ago
The best description I have ever seen.
storaman12 2 months ago
Please upload the frquency modulation part 2 . These are very intresting lecturers
sudhansumtripathy 2 months ago
They didn't call frequency units Hertz, because Hertz was a German physicists. :P Instead they called them cycles. This was recorded in 1964 and SI was established in 1960.
ivaneduardo747 3 months ago
@TheRealPhoneCall u sad person
xGSTARxLUKEx 3 months ago
NEED: Part 2!!!! :)
TheRealPhoneCall 5 months ago
@rafafull You are correct. The example showed amplitude changes in the carrier - or either both of us are misinterpreting the video.
jfdonnald 5 months ago
It was the best explanation of modulation frequencies that attended today, and in 1964 was given by the dep. Defense USA
lacerdatech 5 months ago
@msingletary1984 If it's a condenser microphone that needs phantom power, then yes. Otherwise, it's just amplified to hell by a pre-amp.
Ctcwired 6 months ago
@TheKrazykool809 I knew about them but I hadn't even considered it. Thank you!
msingletary1984 6 months ago