release v.20.5

Tip

For the latest releases check out patreon.com/kamilsss655 or https://ko-fi.com/kamilsss655

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Features:

• ✨✨ new messenger modulations available in menu MsgMod ✨✨
  • FSK 450 - for bad conditions
  • FSK 700 - for medium conditions
  • AFSK 1.2K - for good conditions
• new messenger menu options:
  • MsgEnc - determines whether outgoing messages will be encrypted
  • MsgRx - determines whether fsk modem will listen for new messages
  • MsgAck - determines whether the radio will automatically respond to messages with ACK

Fixes:

• FSK audio mute will be disabled when listening to CTCSS enabled channels (if it causes more random mutes, it will be disabled completely, it can now also be disabled with ENABLE_MESSENGER_FSK_MUTE Makefile flag)
• slightly lowered FSK TX deviation for 25k bandwidth