Retevis Ailunce HD2 - Weather Channel Receiving; DTMF Function

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3)Connect the programming cable to the computer, and then choose the correct device com
po, Click Connect, then Update. it will
display the upgrading progress bar.
4)After 1 min, it will nish the upgrade operation. It will display “Upgrade Successfully”.
12.Weather channel receiving operation (only use in American)
There are ten weather channels for monitoring the National Oceanographic and Atmospheric
Administration (NOAA) weather broadcasts.
Set a side key sho or long press to NOAA function. The HD2 will display NOAA channel at the
sub band.
The HD2 will monitor the current NOAA signal. The NOAA channel frequency as below sheet；
13. DTMF function
While pressing and holding the PTT, press each corresponding key to send the DTMF code:
Number 【0-9】 = DTMF dial number 0-9.
【Menu】 key=A
【Up】 key=B
【Down】key=C
【Exit】 key=D
【*】key=E
【#Lock】key=F