Re: Steve ugly-build LZ1AQ using MPS2222 sweeps uploaded to Photos
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> If you remember in old days for measurement the?
> sensitivity and tuning shortwave receivers were?
> used dummy circuitry between the signal generator?
> and input port of receiver. The dummy circuitry represented?
> impedance of open-wire type antenna in MW and SW bands.
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The IEC315-1 standard, referred to in my previous comment, also described MW & SW dummies for open-wire aerials 10m long, 5m long, and a short whip on car boot connected with a coax cable. The nomenclature used by IEC315-1 is "antenna simulation network". "Dummy antenna" is the jargon used by a previous employer of mine. ?:-)?
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73,
Chin-Leong Lim, 9W2LC.
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