Grundig Satellit 800 - has a loud Hum that repeats at intervals all accross the AM and SW bands

Just purchased this unit. It has a loud annoying "hum" that blocks out stations and repeats accross the AM and SW bands, I am sure blocking out the reception of stations. The RF meter shows little RF strength at these spots which suggests to me the hum's source is internal to the unit. This happens with the built in whip attenna and with a external 30 foot bare wire antenna that has a 50 ohm shielded (grounded) cable running out of the house. Any ideas...

arne8 Feb 04, 2008

static on all bands except am, fm static on all bands except am, fm

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I have the same problem with the buzzing sound up and down the shortwave bands. I have read somewhere the noise is generated inside the radio by the DC up converter used to power the LCD display.
I have noticed that if I move the antenna 30 foot away the noise was gone. To do this you need at least 30 foot of 50 ohm coaxial cable terminated with a 50 ohm balun and the shield grounded

Posted on Feb 02, 2012

Anonymous

Looking for user manual for grundig satelite 600 please

Posted on Dec 17, 2007

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