The GR-1 is a stand alone time code generator/reader. It can be used for logging with the internal memory and printer output, and for finding offsets and drift with its internal error display. When the GR-1 is turned on it will go into the generate mode at the preset frame rate. The time code sets to the internal time of day and the user bits are set to the current date. To set the time code, user bits, and frame rate: Press the “SET” key, time code will stop. A large cursor will appear over the “G”. Use the up, down, left, and right keys to set the proper mode and time code value. To set user bits scroll past the end of the display. The user screen will appear. Set the user bits as desired. The rate field will show “00”. This means free UB or “MD” (indicating date mode). Once the rate and mode are set press the "SET" button. The cursor will disappear and the time code will start. Re-jam after setting the code so you are in sync. The internal clock is only used at the initial power on. DISPLAY: The display is a 16 digit LCD module that shows time code/user bits, mode and rate. The following list is a description of the different mode functions.