Dynon Avionics DX15 - Manual (Page 23)

DX15 User Guide 3‐5
Emergency Frequency (121.500 MHz)
Push and hold the orange Emergency button. The digits
1 2 1 . 5 0 0
appear sequentially on the display as if they are being quickly typed.
When the last digit has appeared, 121.500 is tuned, and your DX15 is now
ready to receive and transmit on 121.500 MHz.
Note: If the Emergency button is released before all digits of 121.500 are
displayed, 121.500 will not be tuned.
Entering a Frequency Directly
If the radio is in another mode, such as Scan, Memory Recall mode or
Most Recently Used Frequency Recall mode, exit these modes first by
pushing the CLR button on the keypad in order to enter a frequency.
Then, simply type out the full frequency on the keypad.
EXAMPLE
To enter the frequency 128.775, you would enter:
1 2 8 7 7
The display will then read:
128.775
The decimal point (".") is automatically entered for you. The last digit is
automatically rounded to the nearest 0.025 MHz (25 KHz) since there is
only one possible valid air band frequency once the first five digits are
typed.
This frequency is now tuned and you can receive and transmit to other
radios that are also tuned to the same frequency.