Provides details on digital notifications filed for broadcast stations with HD Radio.
Updated 6-3-2025 to support asymmetric digital audio broadcasting.
| column | type | description |
| lms_application_id | varchar(32) | Primary index used for all applications. Corresponds with the FCC’s application identifier used in LMS and therefore can be used to cross reference with FCC raw data. Unless otherwise indicated, all relational tables in eLMS are linked by lms_application_id. |
| action_date | date | Date of the notification. |
| tech_rep_first | varchar(80) | First name of the technical representative. (NOTE: Legacy CDBS records will show the full name in this field.) |
| tech_rep_last | varchar(80) | Last name of the technical representative. |
| tech_rep_phone | varchar(10) | Telephone number of technical representative. |
| analog_erp | varchar(8) | Analog effective radiated power. |
| digital_erp | varchar(8) | Digital effective radiated power. |
| combined_tpo | varchar(8) | Combined transmitter power output. |
| analog_tpo | varchar(8) | Transmitter power output of analog transmitter. |
| digital_tpo | varchar(8) | Transmitter power output of digital transmitter. |
| analog_erp_ind | varchar(1) | Applicant certifies that the analog effective radiated power will remain the same as authorized after the commencement of digital operations. |
| ibiquity_ind | varchar(1) | Applicant certifies that the digital operation complies with the iBiquity (Xperi) specifications. |
| exposure | varchar(1) | Applicant certifies that the digital operation continues to meet all radio frequency radiation exposure guidelines. |
| usb_erp | varchar(8) | Digital upper sideband effective radiated power (kW). |
| usb_dbc | varchar(8) | Digital sideband power relative to analog upper sideband (dBc). |
| lsb_erp | varchar(8) | Digital lower sideband effective radiated power (kW). |
| lsb_dbc | varchar(8) | Digital sideband power relative to analog lower sideband (dBc). |
| asym_cert_ind | varchar(1) | Certification that digital sideband power confirms with the maximum permissible FM digital ERP set forth in table 1 of §73.404(f). |
| disc_digital | varchar(1) | Station discontinued digital broadcasts. |
| disc_asym | varchar(1) | Station discontinued asymmetric operation. |
| disc_date | date | Date that digital/asymmetric operation stopped. |
| increase_14dbc | varchar(1) | Increase in digital ERP above 14 dBc. |
| decrease_14dbc | varchar | Decrease in digital ERP below 14 dBc |
| decr_date | date | Date that decreased digital ERP commenced |
| record_added | timestamp | Timestamp of when record was added to eLMS. |
