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Registered
Join Date: Jun 2004
Location: Oregon
Posts: 158
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Help with AM antenna, please
I can't get a good signal from all the local Portland AM radio stations.
Two stations come in OK but with all that background buzzing noise. Others barely come in. Tell me about how to build a good antenna w/o major expense - no Ham antenna instructions, please. ![]() I hear that a simple loop would work, but I'd like to have the stations come in as clear as possible. Would a loop do that? Would the old TV dipole work as good as it can get w/o a major build? There's a TV antenna on the roof with its coax still attached...what about that? I don't want to spend $30 - $40 on a Radio Shack item that may or may not work. FM antenna, too. 'Need a good FM antenna. Thanks. Regards, |
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naturally aspirated
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Back in the '80's I kept hearing about the terk antennas. I ended up buying one, but didn't notice that much of a change from what I had, well I could get some stations I normally wouldn't hear but the quality was never that great. I bet the technology is way better now.
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Run smooth, run fast
Join Date: Aug 2008
Location: South Carolina
Posts: 13,447
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Improving AM Radio Reception:
C. Crane Company - Improving AM Radio Reception - Toll Free (800) 522-8863 Call them if you want some more ideas or to ask about hooking up to your TV roof antenna... great folks. 800-522-8863 More info on AM reception: http://www.ccrane.com/library/am-reception-tips.10.29.01.aspx Also, check the websites of any of the stations you're interested in... they may have streaming broadcasts.
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- John "We had a band powerful enough to turn goat piss into gasoline." Last edited by Heel n Toe; 03-16-2010 at 09:04 PM.. |
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por930ken
Join Date: Nov 2007
Location: Seattle WA. 98168
Posts: 225
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Could be the radio
What type of radio are you trying to get reception with? Is it all the radios in your house? Is there tall buildings, concrete structures? Do you live in a basement or are we talking about your car. If it's your car, most radios have a trim adjustment on the radio. Need more info.
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Registered
Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,515
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Perhaps something in your home is causing the buzz...flourescent light, etc.
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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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canna change law physics
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Paul is right on this one. It isn't the anntenna, it is some sort of RFI.
For plain old AM radio reception, a beverage is usually best. Oh wait, you didn't want "HAM" help.
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James The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994) Red-beard for President, 2020 |
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Registered
Join Date: Jun 2004
Location: Oregon
Posts: 158
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Thank you all for your responses.
No flourescent lights in the house...all other components in the room have been unplugged. I still get buzzing and general white noise - you know, all that background garbage that comes in with an AM signal. I have 2 of the CC Crane Twin Coil Ferrite® AM Antennas. They are of no help. They don't work on my 2 Bose systems, also. I called CC Crane and they have special instructions for the Bose systems. Following their advice, the Twin Coil set-up is useless. 'Nuff said on that. This current set-up is an older Sony Micro Component System, model HCD-NE3 - see photo. My guess is the tuning section is not inferior to most basic radios. I also have a Blaupunkt Derby Deluxe and a Grundig Satellit 700...I'd like to match as closely as possible the AM reception they render. I'll look at CC Cranes "Tips" pages. Thank you again. Regards, Becca PS Suburban neighborhood - no tall buildings from which one could leap. ![]() Last edited by HiBeam; 03-17-2010 at 04:44 AM.. Reason: More info... |
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Double Trouble
Join Date: Nov 2002
Location: North of Pittsburgh
Posts: 11,705
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here ya go....
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one of gods prototypes
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Just a thought, is the main power line into your house on the same wall as the radio is located? How about the electrical panel.....
I've been doing mobile audio for years and AM in cars has always been tricky since they use the chassis as the antenne, it was common to lose am while driving under power lines....... Can you move the tuner/antenne to a different part of the house or outside to test?
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Brought to you by Carl's Jr. |
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N-Gruppe doesn't exist
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most radios with the built in am antenne are directional too. can you rotate the device to get better reception?
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Ted '70 911T 3.0L "SKIPPY" R-Gruppe #477 '73 914 2.0L SOLD bye bye "lil SMOKEY" ![]() "Silence is Golden, but duct tape is SILVER.” other flat fours:'77 VWBus 2.0L & 2002 ImprezaTS 2.5L |
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gargles with Dom Perignon
Join Date: Feb 2008
Location: Pale Blue Dot
Posts: 479
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Perhaps your dwelling has aluminum siding or something similar in which case you are in a virtual Faraday cage. You might just need a signal from an outside source. For AM a length of wire (few feet) should work fine. If not you have problems other than signal strength.
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"If triangles' had a God, he would have 3 sides." |
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Registered
Join Date: Apr 2001
Location: Linn County, Oregon
Posts: 48,515
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If power is supplied with overhead lines, could be a power line leak. We're on PP&L down here, Portland is PGE...I noticed severe RF after a good rain...(water seeps through cracks) so I walked my area with a cheap transistor radio. Then called PP&L. Turns out they have a guy who does just that, detects leaks. My transistor walking was spot on...able to point to the exact connection. A crew came out, fixed the problem.
If you get static on FM? Dunno what to tell you. It's generally RF immune.
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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.) Last edited by pwd72s; 03-17-2010 at 05:44 PM.. |
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Registered
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I use a Terk - Amplified AM/FM Indoor Antenna from Best Buy. $35 and made a difference.
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1987 Carrera Coupe |
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Registered
Join Date: Jun 2000
Location: bottom left corner of the world
Posts: 22,729
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Being a kiwi I'm pretty rough. I just ran some thin gauge wire from the highest point on the roof to the radio and connected the antenna wire to it. Works well.
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Run smooth, run fast
Join Date: Aug 2008
Location: South Carolina
Posts: 13,447
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What did the folks at CCrane say about the results you could expect from hooking up to your roof antenna?
Background noise fluctuates on AM from day to day or night to night... a good bit of it is caused by sunspot activity... gamma rays, charged particles (ions), etc. Not much you can do about that (that I know of). That's why I suggested checking the stations' websites to see if they offer streaming audio... that wouldn't be affected AFAIK.
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- John "We had a band powerful enough to turn goat piss into gasoline." |
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Registered
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If you have wire lying around, then a loop is worth a try, but you can't just wrap the wire around any old object.... A 4 foot loop would need 8 turns and a 2 foot loop would need 18 turns. The bigger the loop, the bigger the gain.
P.S. I make antennas mostly for the Ghz range, but have made a simply FM antenna as well, for a Bose radio. If you do want to try a loop and want help, send me a PM and I'll do what I can to make it easier for you.
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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 Last edited by slodave; 03-17-2010 at 09:13 PM.. |
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Registered
Join Date: Apr 2006
Location: CA
Posts: 362
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that little sony set has no internal antenna for either am or fm. i'd say to try the antenna on your roof and/or get info on how to fab simple antennas.
those two radios you have (Blaupunkt Derby Deluxe and a Grundig Satellit 700) are super fine instruments - both rare these days and collectible. i can see why you don't want to settle for just any old reception with that sony. ![]() cc crane sold a big roll of wire (235.1') years ago; you'd set it behind the radio and enjoy better reception. you might call them and see if they still sell that. good luck. Forrest
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Forrest B. 2000 'S' |
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Registered
Join Date: Jun 2004
Location: Oregon
Posts: 158
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Thank you all for your help.
Yes, I've tried the coat hanger, etc. I'll just keep looking/trying. Thanks again. Great forum! Becca |
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RETIRED
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Does the AM band still broadcast in English?
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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Run smooth, run fast
Join Date: Aug 2008
Location: South Carolina
Posts: 13,447
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I'm still interested in what CCrane said when you asked them about hooking up to your old roof-mounted TV antenna.
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- John "We had a band powerful enough to turn goat piss into gasoline." |
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