{"categories":[],"description":"This article is re-edited from the former post. The pop sound is coming out when the squelch is on/off. AGC voltage and squelch volume tuning voltage are compared by LM358 and the circuit is muting RX sound signal at LM386 input nevertheless LM386 is active. Then a signal is faded but Pop noize is g\u2026","width":"100%","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/n/nobcha23/20210612/20210612212929.jpg","version":"1.0","title":"How to improve squelch feeling for Chinese air band receiver kit \u4e2d\u56fd\u88fd\u30a8\u30a2\u30d0\u30f3\u30c9\u30ec\u30b7\u30fc\u30d0\u30fc\u30ad\u30c3\u30c8\u306e\u30b9\u30b1\u30eb\u30c1\u30d5\u30a3\u30fc\u30ea\u30f3\u30b0\u6539\u5584","published":"2021-06-12 21:44:10","type":"rich","provider_url":"https://hatena.blog","author_name":"nobcha23","author_url":"https://blog.hatena.ne.jp/nobcha23/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnobcha23.hatenadiary.com%2Fentry%2F2021%2F06%2F12%2F214410\" title=\"How to improve squelch feeling for Chinese air band receiver kit \u4e2d\u56fd\u88fd\u30a8\u30a2\u30d0\u30f3\u30c9\u30ec\u30b7\u30fc\u30d0\u30fc\u30ad\u30c3\u30c8\u306e\u30b9\u30b1\u30eb\u30c1\u30d5\u30a3\u30fc\u30ea\u30f3\u30b0\u6539\u5584 - nobcha23\u306e\u30a8\u30a2\u30d0\u30f3\u30c9\u53d7\u4fe1\u6a5f\u81ea\u4f5c\u30d6\u30ed\u30b0 DIY airband receiver BLOG\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","url":"https://nobcha23.hatenadiary.com/entry/2021/06/12/214410","blog_url":"https://nobcha23.hatenadiary.com/","blog_title":"nobcha23\u306e\u30a8\u30a2\u30d0\u30f3\u30c9\u53d7\u4fe1\u6a5f\u81ea\u4f5c\u30d6\u30ed\u30b0 DIY airband receiver BLOG"}