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Join Date: Nov 2002
Location: NWNJ
Posts: 6,202
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FM antennae
Never mind guys...I didn't search well enough initially and have now found what I need
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big blue tricycle stare down the darkness and watch it fade Last edited by Flatbutt1; 08-09-2009 at 06:55 AM.. |
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08-09-2009, 06:50 AM
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one of gods prototypes
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Neverminding....
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08-09-2009, 06:57 AM
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I coulda helped.
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08-09-2009, 03:20 PM
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Location: southwest Ct
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What did you end up getting, I am looking also.
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"The smaller the fine print, the larger the risk." 1988 911 coupe 2008 VW R32 2004 530I |
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08-10-2009, 03:13 AM
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canna change law physics
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llantas
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08-10-2009, 04:08 AM
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I see you
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Quote:
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Si non potes inimicum tuum vincere, habeas eum amicum and ride a big blue trike. "'Bipartisan' usually means that a larger-than-usual deception is being carried out." |
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08-10-2009, 09:05 AM
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(the shotguns)
Join Date: Feb 2006
Location: Maryland
Posts: 21,613
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hmmm....please tell more about this....
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08-10-2009, 09:22 AM
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I see you
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I read that 57 inches is one half of the FM wavelength. Placing it at a right angle to the transmission source apparently maximizes exposure to the wave. And insulated copper ...well its great at conducting most anything I guess. Thats all I know.
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Si non potes inimicum tuum vincere, habeas eum amicum and ride a big blue trike. "'Bipartisan' usually means that a larger-than-usual deception is being carried out." |
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08-10-2009, 10:49 AM
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Banned
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I've long used copper wire for FM antennae, but i never heard the 57" part before. I'll have to give that a try.
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08-10-2009, 01:24 PM
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flatbutt, what FM frequency are you trying to pull in? 57.3" is common for trying to get typical FM stations from 88-108 MHz. If you are trying for a dipole, you should have two equal lengths of wire. I built one for the Bose radio in my mom's kitchen. I actually used coat hangers. The dipole is omni directional, but works best as you described. I also built a 900 MHz ground plane antenna that is directional, but boosts the gain tremendously.
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08-10-2009, 02:05 PM
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Hey dave can ya send me some sort of diagram/blueprint?
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08-10-2009, 03:58 PM
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Location: Linn County, Oregon
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As far as Porche radios go...forget it. Like a friend once told me: "I've never had a Porsche with a good radio". This drives the restoration folks nutzo with the early 911...so many factory radios were simply tossed...
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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08-10-2009, 04:04 PM
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Quote:
http://en.wikipedia.org/wiki/Dipole_antenna
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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08-10-2009, 04:17 PM
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Ah, ok. Where i live the T shaped contraptions don't work well at all.
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08-10-2009, 04:20 PM
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Location: Linn County, Oregon
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Quote:
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"Now, to put a water-cooled engine in the rear and to have a radiator in the front, that's not very intelligent." -Ferry Porsche (PANO, Oct. '73) (I, Paul D. have loved this quote since 1973. It will remain as long as I post here.) |
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08-10-2009, 04:25 PM
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Registered
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Quote:
  You can also go the Yagi route as well. http://en.wikipedia.org/wiki/Yagi_antenna
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Make sure to check out my balls in the Pelican Parts Catalog! 917 inspired shift knobs. '84 Targa - Arena Red - AX #104 '07 Toyota Camry Hybrid - Yes, I'm that guy... '01 Toyota Corolla - Urban Camouflage - SOLD |
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08-10-2009, 06:33 PM
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Thanks dave!
Those plates are joined by wood blocks right? |
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08-10-2009, 06:34 PM
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Yes. Anything that is non-conductive works. The plates and the wood blocks are cut to specific dimensions though. The lower the frequency, the bigger the plates. Oh, CA glue (super glue) does not bond very well. Use epoxy.
Here's the link I used to create my copper masterpiece...  http://www.rc-cam.com/gp_patch.htm
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Make sure to check out my balls in the Pelican Parts Catalog! 917 inspired shift knobs. '84 Targa - Arena Red - AX #104 '07 Toyota Camry Hybrid - Yes, I'm that guy... '01 Toyota Corolla - Urban Camouflage - SOLD |
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08-10-2009, 06:47 PM
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Banned
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You continue to be the man dude.
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08-10-2009, 06:59 PM
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Run smooth, run fast
Join Date: Aug 2008
Location: South Carolina
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Dunno why I noticed this; there are two distinctly different "Flatbutts" in this thread.
Flatbutt1 Registered User ..and... flatbutt I see you What's up with that, dude?
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08-10-2009, 09:55 PM
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1985 Porsche 911 carrera targa 3.2
1984 Porsche Targa 3.2L
1970/1982 Porsche 914-6/911SC 2.7 RS
