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Unistroke is a touchscreen text entry method requiring only one stroke per letter. Here is the alphabet reference:
Red is the stroke, the black dot is the stroke's start point, the gray lines are just there to help learning.
Backspace is a bottom-right to top-left diagonal stroke. Digits are entered with buttons (for now).
The display flashes green when a stroke is recognized otherwise red, and yellow when a character is erased.
If enabled (green), transmitting will be done with the screen's backlight off. The TX LED will also be blinking once per second to indicate activity. Force the backlight on again by pressing any button.
This mode is placed at the top of the main menu list to make it quickly operable in case of emergency (power on, select, select). The purpose of this mode is to fake a blocking error to prevent a suspecting person to inspect and guess what the other modes do. The Portapack will continue playing dead even after a power cycle, the only way to exit the mode is to enter the "secret" key combination entered in Setup -> Play dead and pressing select. It is also possible to exit the mode by reprogramming the device. The key combination has a max length of 10 directional key presses. When Amnesia is enabled, entering the play dead mode will erase the battery-backed RAM (last tune-in frequency, settings...). When Default start is enabled, play dead is always activated on power up (acts as a login).
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Basic Radio Data System transmitter in a silent FM multiplex. For now, only the Program Service Name can be set.
Basic Langage de Commande Routier frame generator and transmitter. Used for alphanumeric signs.
To do. AM or FM tone generator.
To do. FM tone detector with sweep scan.
To do. Displays a graphical spectrum representation across a large frequency span.
To do.