Please, DO ground your devices. Here in Finland, the BBC on shortwave
19 metres comes in at S=9 without grounding and S=9+40dB with grounding.
Also weaker stations on so called tropical bands are not audible without
this "counter part" to the antenna.

Matti Ponkamo, 33 years of experience, Naantali, Finland


"Brenda Ann" kirjoitti viestissä
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"Tony Meloche" wrote in message
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Why would reception improve - and noise drop - when the chassis
ground to the receiver is removed? This is noticeable on SW, but *very*
noticeable on MW.
Ground connection is to faceplate screw of a (verified) grounded 3-prong
outlet, the best grouond I can muster, at the moment.

Most likely picking up common mode noise from your household wiring. Those
grounds are great for 60 Hz, not so great for 1 MHz. Grounds often don't
make a lot of difference for SW reception, but in some cases can make a
world of differene (short run directly to an earth ground).