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AM but no FM on Timex T311 clock radio - Single Wire antenna
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October 20th 12, 04:56 PM posted to rec.radio.amateur.antenna
Jeff Liebermann[_2_]
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First recorded activity by RadioBanter: Jun 2007
Posts: 1,336
AM but no FM on Timex T311 clock radio - Single Wire antenna
On Sat, 20 Oct 2012 00:07:17 -0700 (PDT),
wrote:
Not sure if this is the right group, but here goes.
Wrong group. sci.electronics.repair might be more appropriate.
I have a Timex T311 clock radio.
http://www.timexaudio.com/pdf/T311IB57574_35.pdf
Seems like it used to get FM, but now all I get is a single
statiky station across all FM frequencies. Uses a single
wire antenna about 20" inches long.
According to the FAQ, that's the FM antenna:
http://www.timexaudio.com/faqs.asp?Productid=10108
Pulled it apart and the wire is connected to a board. The
placement of the wire is hard to see, with a blob of hot glue
on the connection.
Is the antenna broken, or something else? Curiosity more than anything.
Break off the yellow goo. Find a 20" piece of wire, and connect it to
where the the antenna attaches. If it works the same, it's not a
broken wire antenna. I can't tell from here what is broken. My
guess(tm) is that it's something else. Since you can hear one
station, the FM receiver is functioning and just lacking in
sensitivity. That would mean a problem with the 20" antenna or the
receiver front end (RF amplifier section). Since it's probably an all
digital receiver, it's probably something blown in the AM/FM receiver
chip.
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Jeff Liebermann
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Santa Cruz CA 95060
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Skype: JeffLiebermann AE6KS 831-336-2558
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