Settings -> sound in : input device. the device you have connected the
microphone.
Settings -> sound out : output device. the device sending the
drm signal to the trx.
Settings -> tx port : the Com Port you use to set
thr trx in transmit mode.
label : enter your callsign
if:
lower bandwidth edge in 2.1 and
2.3 khz modes (default 400 hz),
middle of bandwidth in 4.2 and 4.6 khz modes
(default 2500/2700 hz).
input: microphone input level meter (slow,
delay).
audio enable: you will transmit audio
data enable: you
will transmit pictures. use the ADD button to insert picture
files.