Consider the In-the-Attic Shortwave Listeners (SWL) Loop Antenna
-over- Snake-in-the-Attic type of Shortwave Listeners (SWL) Antenna
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/11800
http://groups-beta.google.com/group/rec.radio.shortwave/msg/01f4e10e7df8249c
http://groups-beta.google.com/group/rec.radio.shortwave/msg/05d50254537096a1
http://groups-beta.google.com/group/rec.radio.shortwave/msg/01f4e10e7df8249c
http://groups-beta.google.com/group/rec.radio.shortwave/msg/8678920c10cb5cc9
Grounding Blocks only work -if- they themselves are well grounded.
Otherwise they are simply a method of connecting two Coax Cables.
>From what you have written : The Snake Antenna In-the-Attic is not
your best choice; being that you are in a 3rd Floor Condo without an
effective short-path-to-ground; and "The Attic" is 'the place' you can
put your Antenna.
So some type of In-the-Attic Loop Antenna would :
* Still put you In-the-Attic.
* Give you a larger Signal Capture Area.
* Be a Balance Antenna that did in itself not require a Ground.
READ - The In-the-Attic Horizontal [Flat] Loop Antenna
Just may be the better choice to fill the available space.
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/7144
hope this helps - iane ~ RHF
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Shortwave Listener Antennas => http://tinyurl.com/ogvcf
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
SWL Antenna Group => http://tinyurl.com/ogvcf
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The Shortwave Listener's Blessing :
SWL BLESSING => http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/9233
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