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Michael Lazear (Mlazear)
New member
Username: Mlazear

Post Number: 1
Registered: 12-2007
Posted on Saturday, December 22, 2007 - 4:51 pm:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

Simon,

I recently purchased the AM transmitter kit, and then got another one on my own after the first one did not work. I built the second one, to no avail, and I have followed all of your directions word for word - with the exception of adding on an antenna (I am using both a walkman and the 'quick and simple' radio to receive a signal from my iPod). I have checked the solder points and the orientation of the transformer. When I connect the battery into the transmitter, it jams the 1,000 kHz range on both receivers. Could you tell me what is wrong? I have soldered the transformer correctly, omitting the middle prong (As shown in the directions), and I have concluded that either the transformer or the audio-in jack you included are not compatible with the iPod. I can't think of any other mono-out device I have. Is there any other way to test this without a morse-code like signal? Also, if I connect a stereo-in jack to the transformer, will it work? Thanks,

Michael L
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I. Dimov (Overrider)
Senior Member
Username: Overrider

Post Number: 142
Registered: 12-2005
Posted on Tuesday, February 19, 2008 - 9:28 am:   Edit PostDelete PostView Post/Check IPPrint Post   Move Post (Moderator/Admin Only)Ban Poster IP (Moderator/Admin only)

I'm pretty sure it's the fact that the iPod has a 32 output impedance, if I am not mistaken. Also I don't think there would be a problem pluging the mono jack in stereo output, it will just all come out in one channel. I made my transmitter using a stereo-in jack, because I couldn't find a mono oneq I just wired it in such a way, it functioned like a mono jack. I might post pictures if I can manage to dig it out. In my expirience the antenna greatly improves the signal.

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