cert_exam:tech_radio_op_1:a:freq:start
折り返し雑音についてわかりやすい記事 https://toragi.cqpub.co.jp/Portals/0/backnumber/2008/01/p224-225.pdf
雑音について
cert_exam/tech_radio_op_1/a/freq/start.txt · Last modified: by fu
折り返し雑音についてわかりやすい記事 https://toragi.cqpub.co.jp/Portals/0/backnumber/2008/01/p224-225.pdf
雑音について