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DaveC wrote:
My brother is a serious SWL'er with a recent model of Drake SW receiver. He listens exclusively to 30MHz. He has asked me (the family electronics geek) what his options are for an antenna on his balcony. (The management doesn't allow anything on the roof of the building.) The balcony is a roofed 6 ft x 8 ft affair. Is it possible to put a loop antenna, coiled inside the balcony roof, each coil being supported, possibly, by a custom plexiglas support in each corner? I'm open to other possibilties, but with the limited space, I quickly run out of ideas. I know about the center-fed masts, such as http://www.radio-ware.com/products/asb3.htm but I'd like to help him with an inexpensive DIY solution, if possible. Any suggestions would be greatly appreciated. Thanks, -- Dave C Some interesting designs on this page: http://www.g4fon.co.uk/ Although the design is for the ham bands, it would work for swl also (same part of the spectrum). I haven't built one of the loop antennas (yet), but plan to, as I am in a similar situation, and will need an antenna for my 20m rig when I finish it (under construction - about 30% done). Another idea I have heard about, is using slinkys: http://www.qsl.net/kd4cga/slinky.htm The loop sounds like a better design, but if I can find a metal slinky (all I've found are plastic in the toy stores), I might try that one also. 73, Tom Ayers KG6MVB -- Money is no object to me... I have no money, therefore it is not an object. |
#2
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Tom,
Search ebay in the toys & hobbies category. There are dozens of them, many in good condition for a couple of dollars. Sal -- Sal D'Ambra Blue Ridge Summit, PA "Tom Ayers" wrote in message ... DaveC wrote: My brother is a serious SWL'er with a recent model of Drake SW receiver. He listens exclusively to 30MHz. He has asked me (the family electronics geek) what his options are for an antenna on his balcony. (The management doesn't allow anything on the roof of the building.) The balcony is a roofed 6 ft x 8 ft affair. Is it possible to put a loop antenna, coiled inside the balcony roof, each coil being supported, possibly, by a custom plexiglas support in each corner? I'm open to other possibilties, but with the limited space, I quickly run out of ideas. I know about the center-fed masts, such as http://www.radio-ware.com/products/asb3.htm but I'd like to help him with an inexpensive DIY solution, if possible. Any suggestions would be greatly appreciated. Thanks, -- Dave C Some interesting designs on this page: http://www.g4fon.co.uk/ Although the design is for the ham bands, it would work for swl also (same part of the spectrum). I haven't built one of the loop antennas (yet), but plan to, as I am in a similar situation, and will need an antenna for my 20m rig when I finish it (under construction - about 30% done). Another idea I have heard about, is using slinkys: http://www.qsl.net/kd4cga/slinky.htm The loop sounds like a better design, but if I can find a metal slinky (all I've found are plastic in the toy stores), I might try that one also. 73, Tom Ayers KG6MVB -- Money is no object to me... I have no money, therefore it is not an object. |
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