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G'day mate, sadly there is more to it than appears at first sight. There are 'schottky's and schottky's'. I use the BAT 46 schottky 'germanium diode equivalent' diodes as general purpose AM detectors with excellent results however other schottky's like the IN5711 are perfectly worthless as AM detectors unless voltage bias is used!
Voltage drop isn't the full story unfortunately. Schottky's do have advantages like a complete lack of carrier storage effects and minimal leakage. For what it's worth they are also very low noise. Regards, Felix (vk4fuq) aka catman.
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