Universal Licensing System
WRKX537
California Internet, LLC dba GeoLinks
License details
| ULS identifier | 4394780 |
|---|
| Call sign | WRKX537 |
|---|
| Radio service | MG |
|---|
| Status | A |
|---|
| Grant date | 2021-03-24 |
|---|
| Expiration | 2031-04-05 |
|---|
| Frequency range | 17915 - 23225 MHz (4 frequencies) |
|---|
| Locations | 5 |
|---|
| Representative location | Costa Mesa, ORANGE, CA |
|---|
| Coordinates | 33.6435000, -117.9272222 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:43:45 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 4 | FXO | 17915.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 3 | FXO | 19575.00000000 | | | | | |
| 1 | 2 | FXO | 23025.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 15 | FXO | 23125.00000000 | | | | | |
| 1 | 8 | FXO | 23225.00000000 | | | | | |
| 1 | 1 | FXO | 23275.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 4 | 17915.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 3 | 19575.00000000 | | 50M0D7W |
| 1 | 2 | 23025.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0G7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 15 | 23125.00000000 | | 50M0D7W |
| 1 | 8 | 23225.00000000 | | 50M0D7W |
| 1 | 8 | 23225.00000000 | | 50M0D7W |
| 1 | 8 | 23225.00000000 | | 50M0D7W |
| 1 | 8 | 23225.00000000 | | 50M0G7W |
| 1 | 8 | 23225.00000000 | | 50M0D7W |
| 1 | 1 | 23275.00000000 | | 50M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 678 West 19th Street, Costa Mesa, ORANGE, CA | 33.64350000, -117.92722222 | 29.900 m | B | 72.000 m structure / 72.000 m overall | |
| 2 | R | | 33.68913889, -117.99272222 | 15.200 m | | | |
| 3 | R | | 33.60547222, -117.81050000 | 346.300 m | | | |
| 4 | R | | 33.72141667, -117.91158333 | 16.800 m | | | |
| 5 | R | | 33.63694444, -117.94200000 | 31.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | ANDREW VHLP2-23B | | H | 40.5000 | 309.8000 | | |
| 1 | 2 | R | ANDREW VHLP2-23B | | | 40.5000 | | | |
| 1 | 3 | R | ANDREW VHLP2-23B | | | 40.5000 | | | |
| 1 | 4 | R | COMMSCOPE VHLP2-23B | | | 40.5000 | | | |
| 1 | 5 | R | COMMSCOPE VHLP2-23C | | | 40.7000 | | | |
| 2 | 1 | T | ANDREW VHLP2-23B | | H | 40.5000 | 111.2000 | | |
| 2 | 2 | R | COMMSCOPE VHLP3-18 | | | 43.5000 | | | |
| 2 | 3 | R | COMMSCOPE VHLP4-18B | | | 44.7000 | | | |
| 3 | 1 | T | COMMSCOPE VHLP4-18B | | V | 44.7000 | 111.2000 | | |
| 4 | 1 | T | COMMSCOPE VHLP3-18 | | V | 43.5000 | 309.8000 | | |
| 8 | 1 | T | COMMSCOPE VHLP1-23A | | H | 35.3000 | 9.5000 | | |
| 15 | 1 | T | COMMSCOPE VHLP1-23C | | V | 35.6000 | 242.1000 | | |
Special conditions
| Type | Condition code |
|---|
| P | 4020 |
| P | 5106 |
License history
| Date | File or call sign | Action |
|---|
| 2026-01-26 | WRKX537 | LIASS |
| 2025-09-05 | WRKX537 | LIAUA |
| 2025-08-02 | WRKX537 | LIAUA |
| 2021-03-24 | WRKX537 | LIREN |
| 2021-03-01 | WRKX537 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4394780 | 2026-08-02 02:43:45 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKX537 | ULS 4394780 | 2026-08-02 02:43:45 |
| Status | A | ULS 4394780 | 2026-08-02 02:43:45 |
| Service | MG | ULS 4394780 | 2026-08-02 02:43:45 |
| Grant Date | 2021-03-24 | ULS 4394780 | 2026-08-02 02:43:45 |
| Expiration Date | 2031-04-05 | ULS 4394780 | 2026-08-02 02:43:45 |