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ultrasonic receiver

  1. W5KV
    Thread

    Using the MFJ-5008 to listen for Wildlife!

    Testing out the MFJ-5008 Ultrasonic Receiver w/ Parabolic Reflector at Bracken Bat Cave in Central Texas! Bonus visit to Natural Bridge Caverns...
    Thread by: W5KV, Jun 18, 2018, 20 replies, in forum: Amateur Radio News
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