z.B USB-INTERFACE FFN V2.0
für Gateways

USB Interface

TX Abschnitt /etc/svxlink/svxlink.conf

[Tx1]
TYPE = Local
TX_ID = A
AUDIO_DEV = alsa:plughw:1
AUDIO_CHANNEL = 0
AUDIO_DEV_KEEP_OPEN = 1
LIMITER_THRESH = -6
TX_DELAY = 800
PREEMPHASIS = 0
MASTER_GAIN = 0.0
DTMF_TONE_LENGTH = 100
DTMF_TONE_SPACING = 50
DTMF_DIGIT_PWR = -15
PTT_TYPE = SerialPin
PTT_PORT = /dev/ttyUSB0
PTT_PIN = RTS