3/15/2024 0 Comments Vlf receiver antenna design![]() ![]() The detector would work almost permanently in interference mode. ![]() So it makes no sense to position a third vertical antenna in addition to the two horizontal antennas. The interference signals at the vertical channel are much stronger than the lightning signals. We wanted to know if this results into better reception characteristics. Initially, in addition to the two horizontal antennas offset by 90 degrees, we connected a third vertical H-field antenna. We have implemented three H-field channels to make experiments. We normally use 2, but BLUE allows for an extra - could be a vertical. Should be mounted at right angles - cross or L-formĮlectrical shielding is rarely needed as connecting to pre-amplifier is differential, and common mode signals are attenuated strongly. PVC board connected to Amplifier PCB 5 Version 7įerrite antennas with a length of 12 or 20cm can be purchased ready-made, or you can wrap them yourself.ġ0-12 cm is enough. Two 20 cm ferrite rod antennas mounted on a ![]() Inputs of your amplifier and the other wire with the negative input of the amplifier.įigure 20: Egon holds a 35 cm ferrite rod antenna. Then one of the two copper enameled wire ends has a knot. If you are using the ferrite rod antennas of , Please do not twist the connection cable of the ferrite rod antennas. It is not possible to tighten such thin wires sufficiently good with the If you are using ferrite rod antennas, you have to strip the insulation of the copper enameled wires,īefore the blank copper wires can be soldered to the amplifier board. ![]()
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