The time code always advances even when the power is turned off. It can be handled as time. It can be slaved to the time code input through the TC IN connector.
The time code is recorded as sequential values regenerated as the time code for a clip recorded on a P2 card.

Setting Time Data

The unit supports time codes, user bits, date, and time (real time) data, which are recorded as data for the sub-code area, VIDEO AUX area, and clip metadata files. It also includes a CTL counter and camera ID.

Description of time data

Time code

The TCG switch can be used to switch between Rec run and Free run.

Free run:

Rec run:

Note

When using VFR, native recording is limited to Rec run. Free run operation is not possible.

CTL counter

The CTL counter will measure total recording time after resetting in the recording operation. At playback, CTL is counted from the start of the first clip that can be played back. This can be used to find the current playback position.

Camera ID

The camera ID can be set with 10 characters 3 lines, which can be superimposed on the color bar video. It can be also superimposed along with date and time data.

User bits

The unit separately includes 2 types of user bits: one (UB) is recorded in the sub-code area and the other (VITC UB) in the VIDEO AUX area.

Each user bits can be recorded as any of the following: a user defined value, time, date, same value as the time code, frame rate information for camera shooting, externally input value (through the TC IN or DVCPRO connector), and value regenerated as the user bits recorded in a clip on a P2 card. The unit includes only one user defined value. If user defined values are selected for both the UB and VITC UB, then the same value is used.

Types of UB can be selected in UB MODE and types of VITC UB can be selected in VITC UB MODE, respectively. However, in the following cases, at least one of UB and VITC UB is always frame rate information in order to support editors (PC software of the like) which make use of information about the frame rate employed at shooting.

In 720P mode, both the UB and VITC UB are always frame rate information.

For recording 24P/24PA in 1080i mode, VITC UB is fixed to frame rate information.

In Native mode, VITC UB is fixed to frame rate information.

Date and time (real time)

The built-in clock maintains the date and time. When the GPS unit AJ-GPS910G is installed, the built-in clock is corrected with accurate date and time information from the GPS.

The built-in clock is used not only to keep track of the Free run time code when the power is switched off and to provide time and date data for the user bits, but also as a time reference when generating files during clip recording and to determine the arrangement and playback order of thumbnails.

It is also used to generate clip metadata and UMIDs (Unique Material Identifiers) in the VIDEO AUX area.

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Adjustments and Settings for Recording: Setting Time Data