https://youtu.be/l3hwGKC9x5o?list=PLj11-01E2RydZoXrZTDMEkpxwww31NNIA<br>
<br><br>
<iframe width="800" height="450" src="https://www.youtube.com/embed/l3hwGKC9x5o?list=PLj11-01E2RydZoXrZTDMEkpxwww31NNIA" title="1. RNH-40 modem. Настройка модуля U2 модема. F1=1200, F2=1400 Гц" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>