Originally posted by abdou2014
View Post
Announcement
Collapse
No announcement yet.
Lrl from Italy
Collapse
X
-
I have to admit I'm a little confused, let's recap.
1- with the antenna (piece of wire) connected and with the oscillator disconnected (disconnect C2) increase amplification (increase C13/C14 or decrease R10/R12) until self-oscillation is obtained (there must be a stable signal of a few V (not critical) which does not change by touching the wire.
2- decrease the amplification until you get 0V at the output.
3-connect C2, find the correct value that gives 4-6 V output
Check the gain of the transistors, it must be greater than 500, I happened to measure BC...C transistors with gain less than 500.
Comment
-
I'm fine, I hope the other members of the forum are too, I think that at the moment there are more important things to take care of, the forum should be considered a pastime and a way to meet other people.Originally posted by Zicos View Postgood morning mr franco and everyone. how are you??? be always well.
Comment
-
Hello, dear Mr. Franco
Thank you very much for providing the magic plan, my question is whether sky effect and polar effect are similar or what is their difference, is the border of sky effect and polar effect the measure of efficiency. Thank you very much
Comment
-
Something has confused me. When I connect the internal inductor 2 turns to the ground and to the antenna and the external inductor 3 turns to the c10 capacitor with high circuit gain, I don't have a polar effect, but the effect of the sky is very strong, and the test with a copper tray buried in 2.5 meters for 12 years It hunted, but I don't have a radius. The antenna must be buried on the metal to do the sense.
Comment
-
I don't know, we should try, but first of all it's better to make the original version.Originally posted by Kazem View PostAnother question, is it possible to connect the shield to the antenna through a separate inductor and capacitor and use the ambient waves as a transmitter? Thank you very much.
Comment
-
Both the sky effect and the compass effect are due to excessive gain, so the only remedy is to decrease the sensitivity.Originally posted by Kazem View PostHello, dear Mr. Franco
Thank you very much for providing the magic plan, my question is whether sky effect and polar effect are similar or what is their difference, is the border of sky effect and polar effect the measure of efficiency. Thank you very much
Comment
-
Originally posted by Kazem View PostSomething has confused me. When I connect the internal inductor 2 turns to the ground and to the antenna and the external inductor 3 turns to the c10 capacitor with high circuit gain, I don't have a polar effect, but the effect of the sky is very strong, and the test with a copper tray buried in 2.5 meters for 12 years It hunted, but I don't have a radius. The antenna must be buried on the metal to do the sense.
I advise you to make the original version with 1 coil, I think you are the only one who made it.
Comment
-
Dear Mr. Franco, thank you for your answer, another experience I had was several different types of antennas, including the diameter of one centimeter and less, all of which were up to one meter. Some antennas receive the polarization effect very little, is this good or is it possible that it is weak in receiving the phenomenon The main point is that if the antenna does not absorb the polarizing effect, it will be weak in absorbing the phenomenon, and will it affect the amplification gain of the circuit?
Comment

Comment