Quote:
Originally Posted by kalee20
If the earthing is iffy, the Spitfire would work OK but the RF output would have to fight its way out however it could. If this was via the power supply leads, there's the rectifier diodes in the way, which get turned on and off at mains frequency. So the radiated RF would vary at this rate.
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Without an earth at hand, just connect the negative (-) side of the power supply output to the electrical earth.
This is easily done in the case of a CB type power supply where the metal case is connected to earth, just put a link between negative and under one of the chassis screws.
The same goes for receiving - using a car radio indoors with a power supply, LW/MW will only become usable with the negative side grounded