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Roy & Dixie
Joined: 29 Jan 2013
Posts: 151
City/Region: Silver Springs
State or Province: FL
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: C Way
Photos: C-Way
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 Posted: Sun Feb 03, 2013 8:57 am Post subject: AM/FM antena |
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| Yesterday as I was installing my newer VHF radio from my poontoon boat into my C-Dory I was surprised by wiring that seems to have been done by a previous owner. On top of the overhead shelf was mounted the old VHF that I was replacing, a commercial vehicle-to-office transmitter which I removed (the VHF antena was being shared using a selector switch which I also removed), and an automobile AM/FM radio with CD player which I am keeping. The 2 antena leads from the AM/FM radio are connected to the port side fwd window frame and the center fwd window frame. All the other window frames are connected in series with short jumper wires. I had thought this had been done by C-Dory due to the frames all being aluminum and to protect them from stray current flow. The short jumpers all look neat and porfessional. But now I realize this must have been done by the previous owner. It ceates a loop antena which runs all the way around the cabin. It definitely works well. Is this a usual way to wire in an AM/FM radio? |
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thataway
Joined: 02 Nov 2003
Posts: 21356
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Sun Feb 03, 2013 10:08 am Post subject: |
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I have seen this done. It is not a CDory standard. Screen, a loop, a short piece of wire etc will work for a FM antenna. Better for AM is a long wire or ferrite wound loop.
Most of the radios just use a straight piece of wire.
_________________
Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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Roy & Dixie
Joined: 29 Jan 2013
Posts: 151
City/Region: Silver Springs
State or Province: FL
C-Dory Year: 1999
C-Dory Model: 22 Cruiser
Vessel Name: C Way
Photos: C-Way
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| Posted: Sun Feb 03, 2013 1:14 pm Post subject: |
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| Bob, thankyou for your answer. |
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hardee
Joined: 30 Oct 2006
Posts: 12637
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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| Posted: Sun Feb 03, 2013 1:24 pm Post subject: |
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On SleepyC, when it came to us, there was one VHF and an AM/FM/CD stereo that also has Weather radio channels on it. Both of those units were combined through a spliter to the single 8ft Commrod antenna. Both functioned very well with good range and clarity. Since then I have made some changes, (added an additional VHF/AIS receiver through a separate 4 ft steel whip) and still have good reception and range with each.
Seems that adding the windows would be overkill.
Harvey
SleepyC
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Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep. |
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Will-C
Joined: 21 Aug 2007
Posts: 2476
City/Region: Temple
State or Province: PA
C-Dory Year: 2008
C-Dory Model: 23 Venture
Vessel Name: Will-C
Photos: Will-C
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| Posted: Sun Feb 03, 2013 9:07 pm Post subject: AM/FM antena |
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We just used a separate Shakespere 4' am fm antenna on a stainless steel mount that folds mounted on our radar arch works fine.
D.D.
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Chevrolet The Heart Beat Of America |
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