Occupation: : 369Date of Birth : 1994-09-29Join Date : 2010-11-12Age : 22
Subject: Transmission circuit using Frequency modulation Wed 06 Apr 2011, 4:10 pm
Transmission circuit using Frequency modulation
It consists of
1 - uniform LED light radiation models SE43522-transistor amplifier capacity model 2N2222 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 .
Service 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 Device