Universal Licensing System
WRMC690
Mobile Relay Associates, LLC
License details
| ULS identifier | 4425509 |
|---|
| Call sign | WRMC690 |
|---|
| Radio service | YG |
|---|
| Status | A |
|---|
| Grant date | 2021-03-22 |
|---|
| Expiration | 2031-03-22 |
|---|
| Frequency range | 472.05 - 475.675 MHz (8 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | Chicago, COOK, IL |
|---|
| Coordinates | 41.8789167, -87.6361667 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-16 06:48:38 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB8 | 472.05000000 | | | 100.000000 | 250.000000 | |
| 1 | 1 | FB8 | 472.07500000 | | | 100.000000 | 250.000000 | |
| 1 | 1 | FB8 | 472.17500000 | | | 100.000000 | 250.000000 | |
| 1 | 1 | FB8 | 472.67500000 | | | 100.000000 | 250.000000 | |
| 2 | 1 | MO8 | 475.05000000 | | | 75.000000 | 200.000000 | |
| 3 | 1 | FX1T | 475.05000000 | | | 50.000000 | 200.000000 | |
| 2 | 1 | MO8 | 475.07500000 | | | 75.000000 | 200.000000 | |
| 3 | 1 | FX1T | 475.07500000 | | | 50.000000 | 200.000000 | |
| 2 | 1 | MO8 | 475.17500000 | | | 75.000000 | 200.000000 | |
| 3 | 1 | FX1T | 475.17500000 | | | 50.000000 | 200.000000 | |
| 2 | 1 | MO8 | 475.67500000 | | | 75.000000 | 200.000000 | |
| 3 | 1 | FX1T | 475.67500000 | | | 50.000000 | 200.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 472.05000000 | | 4K00F7W |
| 1 | 1 | 472.05000000 | | 4K00F2D |
| 1 | 1 | 472.07500000 | | 4K00F7W |
| 1 | 1 | 472.07500000 | | 4K00F2D |
| 1 | 1 | 472.17500000 | | 4K00F2D |
| 1 | 1 | 472.17500000 | | 4K00F7W |
| 1 | 1 | 472.67500000 | | 4K00F7W |
| 1 | 1 | 472.67500000 | | 4K00F2D |
| 2 | 1 | 475.05000000 | | 4K00F7W |
| 2 | 1 | 475.05000000 | | 4K00F2D |
| 3 | 1 | 475.05000000 | | 4K00F2D |
| 3 | 1 | 475.05000000 | | 4K00F7W |
| 2 | 1 | 475.07500000 | | 4K00F7W |
| 2 | 1 | 475.07500000 | | 4K00F2D |
| 3 | 1 | 475.07500000 | | 4K00F7W |
| 3 | 1 | 475.07500000 | | 4K00F2D |
| 2 | 1 | 475.17500000 | | 4K00F2D |
| 2 | 1 | 475.17500000 | | 4K00F7W |
| 3 | 1 | 475.17500000 | | 4K00F7W |
| 3 | 1 | 475.17500000 | | 4K00F2D |
| 2 | 1 | 475.67500000 | | 4K00F2D |
| 2 | 1 | 475.67500000 | | 4K00F7W |
| 3 | 1 | 475.67500000 | | 4K00F7W |
| 3 | 1 | 475.67500000 | | 4K00F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | | 233 S Wacker Dr, Chicago, COOK, IL | 41.87891667, -87.63616667 | 181.400 m | Btwr | 437.500 m structure / 527.300 m overall | |
| 2 | | | | | | | |
| 3 | | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 366.000 m | | | | 366.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 15330 Vermont Ave, Paramount, CA | LOS ANGELES | 3236365202 |
Special conditions
| Type | Condition code |
|---|
| P | 1035 |
| P | 4020 |
| P | 5118 |
License history
| Date | File or call sign | Action |
|---|
| 2022-04-28 | WRMC690 | LIASS |
| 2021-12-21 | WRMC690 | LETCNS |
| 2021-03-30 | WRMC690 | LIAUA |
| 2021-03-22 | WRMC690 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4425509 | 2026-08-16 06:48:38 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMC690 | ULS 4425509 | 2026-08-16 06:48:38 |
| Status | A | ULS 4425509 | 2026-08-16 06:48:38 |
| Service | YG | ULS 4425509 | 2026-08-16 06:48:38 |
| Grant Date | 2021-03-22 | ULS 4425509 | 2026-08-16 06:48:38 |
| Expiration Date | 2031-03-22 | ULS 4425509 | 2026-08-16 06:48:38 |