Universal Licensing System
KNAI681
INLAND EMPIRE UTILITIES AGENCY
License details
| ULS identifier | 1774314 |
|---|
| Call sign | KNAI681 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2025-05-08 |
|---|
| Expiration | 2035-05-25 |
|---|
| Frequency range | 451.425 - 456.425 MHz (2 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | RANCHO CUCAMONGA, SAN BERNARDINO, CA |
|---|
| Coordinates | 34.1602778, -117.5803333 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:16:23 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.42500000 | | | 75.000000 | 95.000000 | |
| 3 | 1 | MO | 451.42500000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | FX1 | 456.42500000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | MO | 456.42500000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.42500000 | | 11K2F3E |
| 3 | 1 | 451.42500000 | | 11K2F3E |
| 2 | 1 | 456.42500000 | | 11K2F3E |
| 3 | 1 | 456.42500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 5700 MAYBERRY, RANCHO CUCAMONGA, SAN BERNARDINO, CA | 34.16027778, -117.58033333 | 628.000 m | B | 3.000 m structure / 5.000 m overall | N |
| 2 | T | CA | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 5.000 m | | | | -238.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 6075 Kimball, Chino, CA | SAN BERNARDINO | 9099474131 |
License history
| Date | File or call sign | Action |
|---|
| 2025-05-08 | KNAI681 | LIREN |
| 2025-04-25 | KNAI681 | ESURNW |
| 2025-03-26 | KNAI681 | ESURNW |
| 2025-03-03 | KNAI681 | LETRES |
| 2025-02-24 | KNAI681 | ESURNW |
| 2015-04-21 | KNAI681 | LIREN |
| 2015-03-02 | KNAI681 | LETRES |
| 2013-04-25 | KNAI681 | LIMOD |
| 2005-05-19 | KNAI681 | LIREN |
| 2005-05-18 | KNAI681 | ESCAPR |
| 2005-03-21 | KNAI681 | LETRES |
| 2001-09-28 | KNAI681 | AUDOPR |
| 2000-11-23 | KNAI681 | LICCNV |
| 2000-05-25 | KNAI681 | AUTHPR |
| 2000-05-25 | KNAI681 | LIMOD |
| 2000-01-05 | KNAI681 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1774314 | 2026-08-02 01:16:23 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNAI681 | ULS 1774314 | 2026-08-02 01:16:23 |
| Status | A | ULS 1774314 | 2026-08-02 01:16:23 |
| Service | IG | ULS 1774314 | 2026-08-02 01:16:23 |
| Grant Date | 2025-05-08 | ULS 1774314 | 2026-08-02 01:16:23 |
| Expiration Date | 2035-05-25 | ULS 1774314 | 2026-08-02 01:16:23 |