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oscillator

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dudyyy

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hi can u help me i want to transmitte only sin wave with no information (no modulation) over 100 or 200 meter distance
 
So?
What help do you want?


Get an oscillator, connect it to a length of wire.
Get a receiver, tune it to the oscillator frequency.
Job done.

JimB
 
JimB said:
So?
What help do you want?


Get an oscillator, connect it to a length of wire.
Get a receiver, tune it to the oscillator frequency.
Job done.

JimB

Quoted for Truth!
 
its ok but about the antenna i want to be too small & also what is the dimession of this wire , its diameter and if its wounded how many turns
 
You don't have a clue how to make a radio transmitter and a radio receiver.
So you are asking about the antenna?
The antenna on my cell phone sticks up only 1.5cm. It operates up to microwave frequencies.
I don't think you know enough to make a microwave transmitter and receiver.
 
no i have done the TX & RX they work fine i measure the output frequncy of the transmitter & it was what i want it 100MHz and i want to stick an antenna but i want 2 be too small
 
An antenna for 100MHz is usually a whip about 80cm long. If you reduce its length then the range will be less.
 
ok then can i make the 80cm whip in a helix shape in this way its the same length but also smaller antenna
 
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