Quote:
Originally Posted by nelson
About GG, i think that is not necesari to have the correct ferrite to catch the correct frequencies, cause you can use other ferrites to or may be the same arrange has pdk RX coil. The point is to set the correct frequency by just doing a correct LC circuit tune to the frequencies you want to recibe.
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Yes, Nelson, the main point is correct frequency. Mean frequency tuned to transmitter that can be received in your local.
There is a little use, even if you have original GG, if there is no TX frequency on which GG is tuned in your local.
You can replace non-existent (military) local VLF signal transmitter by your own portable one. I have already posted some adequate TX schematic here.
J_P can explain this matter more in detail.