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03-20-2017, 09:00 PM | #1 |
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Join Date: May 2016
Location: Green Bay, WI
Posts: 135
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Bad reception with new antenna.
Hello, the mast broke off of my antenna base awhile ago. So I go order a new OEM style one from Classic Industries. I get it all in and made sure to plug it all the way in in the back of the radio. Well the same radio station I could listen to fine most of the time on the old antenna now seems like it has worse reception. It is still listenable some of the time. I'm not sure if that is just how it is, or maybe I did something wrong? The only other issue I had with it is where the base goes over the hole in the metal the outside rubber seal on the antenna base was not quite large enough to go around the entire hole. So a little bit on both sides you can see where the rubber seal is wedged into the gap between the metal and the antenna base when the antenna is tightened down on the hole. Not a big deal right? Thoughts? http://i.imgur.com/jlLSkAC.jpg
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03-21-2017, 07:55 AM | #2 |
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Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
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Re: Bad reception with new antenna.
I'm pretty sure the base of the antenna has to have a good ground to the cowl where the antenna is secured under the cowl. it might not be making good contact..
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Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
03-21-2017, 08:49 AM | #3 |
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Join Date: Mar 2003
Location: Michigan
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Re: Bad reception with new antenna.
Had the same issue?
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1972 Chevy K20 4X4 8k Winch Locker Gears |
03-22-2017, 06:28 AM | #4 |
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Join Date: Jun 2014
Location: Bushwood, MD
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Re: Bad reception with new antenna.
Did you "trim" the antenna to the radio?
Randy |
03-22-2017, 10:10 AM | #5 |
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Join Date: Apr 2005
Location: Pensacola, FL
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Re: Bad reception with new antenna.
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
03-22-2017, 10:18 AM | #6 |
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Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,210
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Re: Bad reception with new antenna.
On older radios there was a "trimmer capacitor" to match antenna impedance. Mainly affected the AM band. Not sure what radio you have, but look at the sides and back for a hold with trim written next to it. If it is an old cassette radio they put it in the cassette slot. while listening to a weak station, use a small screwdriver and turn it back and forth for best reception. Talk about old school!
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Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC |
03-22-2017, 11:42 AM | #7 |
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Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Bad reception with new antenna.
If it's a problem with AM, check the trim as Terry says.
If it's a problem with FM, try changing the height of the antenna until you get a good signal. There's a height for most antennas that works "best" for FM, and in fact, if you had an FM radio from the factory on a Camaro (or maybe a truck) you should have a fixed mast antenna that doesn't telescope because of that. So if it's FM, try to replicate what the factory did by finding the "right" height and that might solve some of the reception issues.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
03-26-2017, 02:47 PM | #8 |
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Join Date: May 2016
Location: Green Bay, WI
Posts: 135
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Re: Bad reception with new antenna.
There is a aftermarket radio in the truck. I am talking about an FM station as well. The antenna I bought is a single piece mast. I'm starting to think it's just how it is.
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antenna, c20, radio, reception |
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