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#1
April 4th 07, 12:55 AM
posted to rec.radio.amateur.antenna
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Non technical antenna question
take it back to wallmart its a bummer nmb
I have a cheap boom box radio that I recently bought at Walmart and it plays great music, and cd's, and cassettes. Unfortunately it will not play my favorite FM oldies station (97.5 MHz) either in my workshop, or my house (it plays several other stations fine). My other boom box will play the station (and its 20 years old), and they are both of relatively equal value (the older one is a brand name - Panasonic). If anything, I would think the new one should have 20 year newer technology in it, and it should play at least as good - dunno. They both have a telescopic whip antenna (I hope that is the right terminology), and the new one will not play the station I want by either rotating the antenna, or moving the radio to different positions. I have tried everything. The only way it will play the station I want, is to put my hand on the antenna (or even around the antenna - ie I don't even have to touch it - interesting - I guess my body makes a real good antenna - I have always wondered about this phenomena). I tried touching it with other metallic devices (eg, wire, coat hanger etc), and it has no effect. The only way it will play the station is by getting near the antenna with my hand. I see no way of mounting an FM antenna to the receiver (ie the antenna is factory mounted to the back of the radio. I have a couple of questions if you will allow me : - Is there anything I can do to the existing telescopic whip antenna (such as wrap it in aluminum foil or something else weird like that) that will enable the radio to pick up the station I want. And also, please explain why it plays the station I want when I put my hand on or around the antenna. - I thought AM and FM antennas were different technologies (so to speak - eg amplitude modulation versus frequency modulation). How come portable AM/FM radios only have a single telescopic whip antenna (please excuse me if that is the wrong terminology). Is the whip for FM, and the AM is inside the radio, or it uses the cord (just a guess). Any comments would be greatly appreciated. Thanks...Pete |
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