An RF ammeter for end fed short wave aerials
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G4NSJ - An end-fed wire aerial top band 160 metres amateur ham antenna
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Vertical aerials for HF short wave amateur ham radio bands
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G4NSJ - National HRO 5TA1 - 5A1 communications receiver
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An ATU aerial tuning unit for short wave HF end fed aerials
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RF Current Transformer and Meter
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How to Build an RF Power Tap
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Pirates on medium wave - in disguise
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