[BMchVbmQDug] Understanding CTCSS and DCS

This video explains the basic technical principles behind CTCSS (continuous tone coded squelch system) and DCS (digitally coded squelch) as well as how they are used in analog radio systems.

Index
00:15 About squelch
1:45 User squelch and talk groups
2:10 Squelch and repeaters
3:35 CTCSS (continuous tone coded squelch system)
4:21 CTCSS tones
4:57 DCS (digitally coded squelch)
5:42 DCS codeword example
6:03 Standard DCS codes
6:48 Polarity inversion
7:20 Turn off code
8:10 Summary