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  Transmission circuit using Frequency modulation

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amr mohamed

Occupation: : 369
Date of Birth : 1994-09-29
Join Date : 2010-11-12
Age : 24

PostSubject: Transmission circuit using Frequency modulation   Tue 05 Apr 2011, 10:05 am

Transmission circuit using Frequency modulation

Consisting of

1 - uniform
LED light radiation models
2 - Transistor Amplifier 2N2222 capacity model
3 - 2N3904 transistor amplifier effort
4 - Department
Integrative work Kmzbzb 566
To modify the carrier frequency

Is modified to change the frequency
A carrier frequency signal resulting from the oscillator to change depending on the volume orintensity
Signal to be sent

Receive the modified optical frequency

Transistor works
Q1 IR receiver
Sending and working transistor Q2
Effort like a microphone, works transistor Q3
The ability of like a microphone, works transistor Q4
Parameter, and the common work Asalkoni IN4148
Reagent, and the file works and 10mH
Almktvan 100u and
30u candidate to book a high frequency
Unwanted frequencies and pass the audio only. The transistor
Q5 It is a key
Silicon is composed of four layers is similar to the common Asalkoni row and call it
Terminology (SUS).
The extent of the short circuit is
Several meters, can be used as a generator phone tones (DTMF
) in the Department of the sender and the analyst tones (DTMF
) In the future and become our Remote Control controls 16


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Transmission circuit using Frequency modulation
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