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The point of the situation
Hi All
I want to remind you that at the beginning in this forum almost all of us believed not to "lrl phenomenom" but when Esteban told us that lrl was a real working instrument and that the phenomenom was real and that it could be revealed in many way, then I started experimenting, at the beginning with the PD pistol, after with BFO, E-field and B-field instrument. I must confess that I had many disappointments but the successes obtained by Morgan and Geo they stimulated me to continue. Obviously I thought the words of Morgan and Geo and in addition I was convinced that the "sky/compass" effect was the demonstration that all my instruments (I think more then 30) they detected some strange but real phenomenom. Unfortunately the sky/compass effect is more strong that lrl signal and then a not well designed lrl it cannot sense the phenomenom. We can think to sky/compass effect as a low impedance and low voltage source and the lrl signal as high impedance and high voltage source, if we measure with a low impedance instrument we lose the high impedance signal and if our instrument emits a strong signal (TX coil) than this fact also kills the lrl signal. But the question is not simple, a high impedance instrument also senses the "trees/walls" effect and as a last thing the lrl signal depends on the orientation and I think that the sky/compass effect acts as a channel. The Key is (for me) an amplifier stage in a self oscillating mode, but without signal saturation. I have realized some of this lrl and they work but I wait for tests by Geo. The problem is that the circuit is difficult to calibrate, I can't explain as it can oscillate with a stable but not saturated signal. This circuit is similar to a super regenerative receiver. In the circuit there are 4 transistors BC183C or similar with "beta" more then 500, the DC out is in the range 2-7V and when I connect the scope the DC out drops to zero, then no oscillation. The circuit is derived from a RF sniffer in FM range, but I think that the frequency in my case is much less, not depending from LC tank. This stage is the "front-end" and it is followed by a motion stage/comparator and then led and buzzer. The stage oscillates also without antenna and when we touch the antenna the signal out varies considerably. In the field the optimal adjustment is when there is no sky/compass effect. Best Regards |
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