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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
Hello:
Have been putting a fair amount of time into trying to understand antenna radiation patterns. Guess I finally have to admit that I'm 3d challenged, and frankly have difficulty in visualizing them. So, let me just ask: Am thinking of purchasing a PAR EFL- SWL receive only antenna for my attic. Can probably be considered as an end fed dipole Will probably run it as an inverted L, with the vertical section being about 10 feet, and going from the attic to the floor below where the radio is. As the total length is 45', this would leave 35 feet going horizontally. (placing outside would not be practical) Interested in as omni as possible, as do listening most anywhere from 0.5 to 30 MHz. Have two questions, please: a. anyone ever use this antenna ? Think it would be "substantially" better than what I have now which is a simle random length wire going around the 4 sides of my attic. Would sure appreciate any thoughts and opinions on this PAR unit. b. How "omni" is it ? e.g., If I have the wire axis running N-S, is most of the sensitivity then in the E-W direction (perpendicular to the wire) ? If so, will I pick up "anything" in the N-S direction ? Thanks, B |
#2
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
On Sun, 18 Dec 2005 12:58:01 -0500, "Robert11"
wrote: Hello: Have been putting a fair amount of time into trying to understand antenna radiation patterns. Guess I finally have to admit that I'm 3d challenged, and frankly have difficulty in visualizing them. So, let me just ask: Am thinking of purchasing a PAR EFL- SWL receive only antenna for my attic. Can probably be considered as an end fed dipole Will probably run it as an inverted L, with the vertical section being about 10 feet, and going from the attic to the floor below where the radio is. As the total length is 45', this would leave 35 feet going horizontally. (placing outside would not be practical) Interested in as omni as possible, as do listening most anywhere from 0.5 to 30 MHz. Have two questions, please: a. anyone ever use this antenna ? Think it would be "substantially" better than what I have now which is a simle random length wire going around the 4 |
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
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#4
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
In article ,
"Robert11" wrote: Hello: Have been putting a fair amount of time into trying to understand antenna radiation patterns. Guess I finally have to admit that I'm 3d challenged, and frankly have difficulty in visualizing them. So, let me just ask: Am thinking of purchasing a PAR EFL- SWL receive only antenna for my attic. Can probably be considered as an end fed dipole Will probably run it as an inverted L, with the vertical section being about 10 feet, and going from the attic to the floor below where the radio is. As the total length is 45', this would leave 35 feet going horizontally. (placing outside would not be practical) Interested in as omni as possible, as do listening most anywhere from 0.5 to 30 MHz. Have two questions, please: a. anyone ever use this antenna ? Think it would be "substantially" better than what I have now which is a simle random length wire going around the 4 sides of my attic. Would sure appreciate any thoughts and opinions on this PAR unit. b. How "omni" is it ? e.g., If I have the wire axis running N-S, is most of the sensitivity then in the E-W direction (perpendicular to the wire) ? If so, will I pick up "anything" in the N-S direction ? The antenna will pick up stations in all directions. Usually the issue here is the height above ground which will determine the horizon visibility of the antenna. The higher up the antenna the more horizon it will see and have a lower angle of reception. Generally the higher up the antenna is the stronger the signal will be that it picks up. Being in your attic it's probably on the order of 20 feet off the ground so it will have a tendency to distort any pattern it may have higher off the ground. Being in the attic will further distort the innate pattern the antenna may have and spread out any lobes in the pattern. -- Telamon Ventura, California |
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
On Sun, 18 Dec 2005 12:58:01 -0500, "Robert11"
wrote: Hello: Have been putting a fair amount of time into trying to understand antenna radiation patterns. Guess I finally have to admit that I'm 3d challenged, and frankly have difficulty in visualizing them. So, let me just ask: Am thinking of purchasing a PAR EFL- SWL receive only antenna for my attic. Can probably be considered as an end fed dipole Will probably run it as an inverted L, with the vertical section being about 10 feet, and going from the attic to the floor below where the radio is. As the total length is 45', this would leave 35 feet going horizontally. (placing outside would not be practical) Interested in as omni as possible, as do listening most anywhere from 0.5 to 30 MHz\0\0\0 Have two questions, please: a. anyone ever use this antenna ? Think it would be "substantially" better than what I have now which is a simle random length wire going around the 4 |
#6
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
DaviD - 'you' are most eloquent . . .
when you say the least ) DaviD - and these blank posts almost make 'you' sound like .. . . an intellectual genus ;-} just for the fun of it ! :0/ ~ RHF |
#7
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
DaviD - 'you' are most eloquent . . .
when you say the least ) DaviD - and these blank posts almost make 'you' sound like .. . . an intellectual genus ;-} just for the fun of it ! :0/ ~ RHF |
#8
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
On 18 Dec 2005 14:31:19 -0800, "RHF"
wrote: DaviD - 'you' are most eloquent . . . when you say the least ) DaviD - and these blank posts almost make 'you' sound like . . . an intellectual genus ;-} just for the fun of it ! :0/ ~ RHF . . . . My ISP is hiccuping. |
#9
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
David - " My ISP " - 'ISP' sounds more like a Lisp ) ~ RHF
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PAR EFL-SWL Antenna, and Inverted-L Antenna Questions
On 18 Dec 2005 23:28:10 -0800, "RHF"
wrote: Yes David " Sometimes a banana is just a banana... " but then again . . . ~ RHF . . . . Down boy. You've been spending too much time in the Bay Area... |
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