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I'm trying to design a CIC filter to decrease the amount of data that will be sent though a unit that I am creating. Basically we will have three antennas that are tuned to the frequency that we want to record. We are only going to be recording the reading from each antennae at one point in...
I'm sorry about that I forgot to describe what was on the board. From what you can see there is one vertical antenna and the horizontal antenna is on the reverse side of the pcb. The unit in the upper left is not a capacitor, I'll have to follow the wires and see if there is one elsewhere on...
I opened up the original last week to get a feel for how their antenna was designed.
It has two ferrite rods, one vertical and one horizontal. They are shorter than 15 cm, they are just over 4 inches. They way it works is one receives the direct signal from the transmitter and the other...
My boss is asking me to construct a VLF unit to detect ground fractures. I understand the principles and have a general construction scheme laid out but I know absolutely nothing about RF antennas. I'm trying to mimic an discontinued unit that we currently posses. It's instruction manual is a...
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