Re: Building an external ferrite rod aerial
OK, I've investigated a bit further. The unit tends to oscillate if it's connected to a radio with a floating earth, especially on MW. This is presumably because the coax shielding is able to radiate RF if it's not grounded.
However, I've found that it oscillates at the HF end of the MW band, even if the radio *is* earthed. The middle and the LF end of the band are fine, as is LW.
I'll try to work out what's going on and report back.
Best regards, Paul
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