| Description: The unit_id attribute provides a character or character string which serves as an abbreviation for, or symbol representing, a unit of measure. |
| Namespace Id: pds | Steward: pds | Class Name: Units_of_Frequency | Type: UTF8_Short_String_Collapsed |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: ID | Conceptual Domain: Short_String |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | GHz | GHz is an abbreviation for gigahertz, which is a unit of frequency (1 GHz = 10**9 hertz = one billion hertz). |
| | Hz | Hz is an abbreviation for hertz, which is a unit of frequency (in terms of SI base units, 1 hertz = 1 event (or cycle) per second). |
| | MHz | MHz is an abbreviation for megahertz, which is a unit of frequency (1 MHz = 10**6 hertz = one million hertz). |
| | THz | THz is an abbreviation for terahertz, which is a unit of frequency (1 THz = 10**12 hertz = one trillion hertz). |
| | kHz | kHz is an abbreviation for kilohertz, which is a unit of frequency (1 kHz = 10**3 hertz = one thousand hertz). |
| | mHz | mHz is an abbreviation for millihertz, which is a unit of frequency (1000 mHz = one thousand millihertz = 1 Hz). |