Universal Licensing System
WRMM821
AMAZON.COM - SCK4
License details
| ULS identifier | 4444175 |
|---|
| Call sign | WRMM821 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2021-05-04 |
|---|
| Expiration | 2031-05-04 |
|---|
| Frequency range | 464.3125 - 469.6375 MHz (7 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | STOCKTON, SAN JOAQUIN, CA |
|---|
| Coordinates | 37.9089167, -121.1840278 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:22:24 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.83750000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 451.91250000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 456.83750000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 456.91250000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 461.05000000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 461.15000000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 462.06250000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 463.40000000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 463.40000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.12500000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.12500000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.15000000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.15000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.16250000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.16250000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.27500000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.27500000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.31250000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.31250000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.32500000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.32500000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | FB2 | 464.63750000 | | | 40.000000 | 30.000000 | |
| 3 | 1 | MO | 464.63750000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 466.05000000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 466.15000000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | MO | 467.06250000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 468.40000000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.12500000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.15000000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.16250000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.27500000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.31250000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.32500000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.63750000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.83750000 | | 7K60FXE |
| 1 | 1 | 451.91250000 | | 7K60FXE |
| 1 | 1 | 456.83750000 | | 7K60FXE |
| 1 | 1 | 456.91250000 | | 7K60FXE |
| 1 | 1 | 461.05000000 | | 7K60FXE |
| 1 | 1 | 461.15000000 | | 7K60FXE |
| 1 | 1 | 462.06250000 | | 7K60FXE |
| 2 | 1 | 463.40000000 | | 7K60FXE |
| 3 | 1 | 463.40000000 | | 7K60FXE |
| 2 | 1 | 464.12500000 | | 7K60FXE |
| 3 | 1 | 464.12500000 | | 7K60FXE |
| 2 | 1 | 464.15000000 | | 7K60FXE |
| 3 | 1 | 464.15000000 | | 7K60FXE |
| 2 | 1 | 464.16250000 | | 7K60FXE |
| 3 | 1 | 464.16250000 | | 7K60FXE |
| 2 | 1 | 464.27500000 | | 7K60FXE |
| 3 | 1 | 464.27500000 | | 7K60FXE |
| 2 | 1 | 464.31250000 | | 7K60FXE |
| 3 | 1 | 464.31250000 | | 7K60FXE |
| 2 | 1 | 464.32500000 | | 7K60FXE |
| 3 | 1 | 464.32500000 | | 7K60FXE |
| 2 | 1 | 464.63750000 | | 7K60FXE |
| 3 | 1 | 464.63750000 | | 7K60FXE |
| 1 | 1 | 466.05000000 | | 7K60FXE |
| 1 | 1 | 466.15000000 | | 7K60FXE |
| 1 | 1 | 467.06250000 | | 7K60FXE |
| 3 | 1 | 468.40000000 | | 7K60FXE |
| 3 | 1 | 469.12500000 | | 7K60FXE |
| 3 | 1 | 469.15000000 | | 7K60FXE |
| 3 | 1 | 469.16250000 | | 7K60FXE |
| 3 | 1 | 469.27500000 | | 7K60FXE |
| 3 | 1 | 469.31250000 | | 7K60FXE |
| 3 | 1 | 469.32500000 | | 7K60FXE |
| 3 | 1 | 469.63750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | STOCKTON, SAN JOAQUIN, CA | 37.90888889, -121.18872222 | | | | |
| 2 | T | 6001 S. AUSTIN RD, STOCKTON, SAN JOAQUIN, CA | 37.90891667, -121.18402778 | 13.000 m | BANT | 21.300 m structure / 22.800 m overall | N |
| 3 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 22.800 m | | | | 21.600 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 6001 S. AUSTIN RD, STOCKTON, CA | SAN JOAQUIN | 2062661000 |
License history
| Date | File or call sign | Action |
|---|
| 2022-02-01 | WRMM821 | LETCNS |
| 2021-06-28 | WRMM821 | LIMOD |
| 2021-05-04 | WRMM821 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4444175 | 2026-08-02 01:22:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMM821 | ULS 4444175 | 2026-08-02 01:22:24 |
| Status | A | ULS 4444175 | 2026-08-02 01:22:24 |
| Service | IG | ULS 4444175 | 2026-08-02 01:22:24 |
| Grant Date | 2021-05-04 | ULS 4444175 | 2026-08-02 01:22:24 |
| Expiration Date | 2031-05-04 | ULS 4444175 | 2026-08-02 01:22:24 |