Hi Bill
Got one last year to use on a vertical in conjunction with a standard tuner and now as a conterpoise to a LW antenna. It resolved effectively a high SWR problem I had.
It consists of a LC network which creates a low impedance path to a standard ground. An L and C network don't create a ground; it rather makes a poor ground more effective.
Will send you a schematic of the MFJ 931 via email.
If anyone else is interrested, let me know.
72/73 de Pierre
KX1 #442
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