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>>>I need a radio project(simple)...

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Someone Electro

New Member
I wod like to make my first radio project.I think RC is cool.

But recivers are complicated so i want to make a AM transmiter.

I wod go for FM but the FM band has almost no free freqences.Wile the MW band is all free.

So i want to make a trasmiter that transmits on the MW band(AM modulation is on the MW)

I want it to:
-transmit to 50 - 200 m
-be simple
-be bult from basic parts(capacitators,resistors,transistors,iductors)
-ferite free(i dont have a freite rod)
-a carbon mic

PS:
I have a mic that is a litle biger than a watch batery.its from an old mabile phone.Cod it be a xtal mic?
 

Someone Electro

New Member
The problem is i dont have a variable capacitator or inductor. so it going to be trycky to get the right freq on the FM band (almost no free freq).I think the 89 Mhz is free
 

Someone Electro

New Member
I found some transmitters:

-200 m AM : https://www.flashwebhost.com/circuit/miniature_mw_transmitter.php

-Simple 1-2 Km FM : https://www.designnotes.com/CIRCUITS/fmtransmitter.htm

- Over 200 m FM: https://members.tripod.com/xexorz/schematics/fmtrans1.html

-Simple FM: https://www.uoguelph.ca/~antoon/circ/fmt2.htm

-More than 600 m FM: https://www.reconnsworld.com/transmit_fm_trasm.html


There from Discover Circuits.


I want one to spy on conversations which wod be best for the job?

It may sound like a stupid qestions but i have no experience on RF.
 
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