Tuesday, December 22, 2009
2Km Fm Transmitter circuit Diagram
This is a powerful transmitter so first of all I would like to tell you not to use this for illeagl things.You can transmitt signals from 2km.Use a matching antenna for this.
Note
# Don't give power without an antenna
# For L1 make 3 turns of 1mm enamelled copper wire on a 10mm diameter plastic former. On the same core make 2 turns of 1 mm enamelled copper wire close to L3 and that will be L2.
# by using R9 the gain can be controlled
# Inductor L3 can be a VK220J type RFC.
# This circuit operates with 9V to 18V ( Dont pass 24V)
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26 comments:
frequency?
The frequency is 88MHz to 108MHz.By changing the coil you can change the frequency little bit like 80MHz to 110Mhz
Pliz ineed to knw the watt of the resistors and volts in capacitors,my email amarinompotwa@yahoo.com
use 1W resistors when you use capacitors use over 24V
ya may i get any extra robot circuit diagrams
Hi,
sure I'll try to give you some robot circuit diagrams.
Which type of antenna is used in it..plz tell me.ma mail id is arijit.ece.imps@gmail.com
use two telescope antennas
plz , tell me how L1 & L2 works?
VK220J type RFC. what is this mean ? give some examples,
could you explain the circuit diagram given above...my email id is siva.prasad046@gmail.com
How big should the antenna be in diameter, width, breadth and of what material should it be made? Is there a way one can extend the signal or make the diagram more compact?
Hello friends i maid this Fm transmitter successfully . you can get the all details from this link http://www.kpkpkalpesh.blogspot.in
Use about 1m length two antennas
Use about 1m length two antennas
which metal for antennas
please get me the reciver circuit too..........
please, i need the mathematical analysis of all the components used in this circuit. my email; jinadu.braimoh@gmail.com.
i will appreciate your kindness
please, i need the mathematical analysis of all the components used in this circuit. my email; jinadu.braimoh@gmail.com.
i will appreciate your kindness
I tried FM Transmitter circuit. But, It is giving noise. How can I rectify noise from my transmitter
I think there should be a little distance between the main transistor and the coil.Some times your coil can be too closer to the transistor
plz explain that how to make VK220J type RFC inductor.
I tried this circuit but in market vk220j type inductor is not available. so plz can u explain how to make vk220j type inductor ?
And one more thing you should supply DC current to minimize the noise.and you can do the following way to build L3. Use 28 SWG 250 turns on 6mm former 5mm width honeycomb winding If you have any matter I'm ready to help you my friends
I recently came across your blog and have been reading along. I thought I would leave my first comment.I don't know what to say except that I have enjoyed reading. Nice blog. I will keep visiting this blog very often.
fm transmitter for car
Excellent work and great opportunity to learn!!
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