Swiss Army Knife FM antenna

Many thanks to SWLing Post contributor, Balázs Kovács, who shares the following video of a Swiss Army knife and tweezers being used as FM antennas:

Click here to view on YouTube.

Thanks for sharing this, Balázs. The video actually makes a good point: it takes so little to make an effective FM antenna to receive local stations. I’ve been with repair technicians when working on radios They’ll often use their precision screwdriver as an antenna to test the receiver before reassembly.

I also carry a couple cheap instrumentation patch cord with alligator clips on both ends to act as a short antenna or antenna extension when needed. Honestly, It’s amazing how often I reach for them!

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3 thoughts on “Swiss Army Knife FM antenna

  1. Phil

    For biotelemetry (UHF) I used paper clips all the time for bench work….In a pinch any wire will do, so long as its the right length. Alligator clip leads work just as well.

  2. Phil

    Could this be used as a reference for the most stupid article published in the blog or do you think it could get overcome from some other one in the near future?

  3. Mangosman

    Most phones except Apple products contain FM tuners. Apple wants you to use and pay for iTunes!
    The manufacturers use the shield wire in the headphone cable as the antenna connection. Using headphones produces much better sound quality and stereo as well.

    It is common for smart phones to have no antenna socket at all even for the phone signals. Manufacturers make car carriers which contain an antenna inside the carrier which is as close as possible to the phone’s internal antenna. Then an external antenna can be mounted on the vehicle which is not affected by the shielding effect of the car’s metal body. These carriers will also charge the phone battery as well, some link into the vehicle’s infotainment system for better internet music sound and hands free phone use.


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