Universal Licensing System
WRKD938
Snowflake
License details
| ULS identifier | 4364922 |
|---|
| Call sign | WRKD938 |
|---|
| Radio service | IG |
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| Status | A |
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| Grant date | 2020-12-17 |
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| Expiration | 2030-12-17 |
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| Frequency range | 451.4125 - 457.1875 MHz (6 frequencies) |
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| Locations | 4 |
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| Representative location | Menlo Park, SAN MATEO, CA |
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| Coordinates | 37.4829167, -122.1778611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:01 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.41250000 | | | 20.000000 | 20.000000 | |
| 2 | 1 | MO | 451.41250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 451.53750000 | | | 20.000000 | 20.000000 | |
| 2 | 1 | MO | 451.53750000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | FB2 | 452.18750000 | | | 20.000000 | 20.000000 | |
| 4 | 1 | MO | 452.18750000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 456.41250000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 456.53750000 | | | 4.000000 | 4.000000 | |
| 4 | 1 | MO | 457.18750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.41250000 | | 7K60FXD |
| 1 | 1 | 451.41250000 | | 7K60FXE |
| 2 | 1 | 451.41250000 | | 7K60FXD |
| 2 | 1 | 451.41250000 | | 7K60FXE |
| 1 | 1 | 451.53750000 | | 7K60FXD |
| 1 | 1 | 451.53750000 | | 7K60FXE |
| 2 | 1 | 451.53750000 | | 7K60FXD |
| 2 | 1 | 451.53750000 | | 7K60FXE |
| 3 | 1 | 452.18750000 | | 7K60FXD |
| 3 | 1 | 452.18750000 | | 7K60FXE |
| 4 | 1 | 452.18750000 | | 7K60FXD |
| 4 | 1 | 452.18750000 | | 7K60FXE |
| 2 | 1 | 456.41250000 | | 7K60FXE |
| 2 | 1 | 456.41250000 | | 7K60FXD |
| 2 | 1 | 456.53750000 | | 7K60FXD |
| 2 | 1 | 456.53750000 | | 7K60FXE |
| 4 | 1 | 457.18750000 | | 7K60FXD |
| 4 | 1 | 457.18750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 120 Independence Drive, Menlo Park, SAN MATEO, CA | 37.48291667, -122.17786111 | 3.000 m | B | 16.800 m structure / 16.800 m overall | N |
| 2 | T | | | | | | |
| 3 | T | 4120 Dublin Blvd, Dublin, ALAMEDA, CA | 37.70363889, -121.87361111 | 108.000 m | B | 13.700 m structure / 13.700 m overall | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 16.800 m | | | | -46.600 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 13.700 m | | | | -85.600 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 450 Concar Drive, San Mateo, CA | SAN MATEO | 6504502793 |
License history
| Date | File or call sign | Action |
|---|
| 2025-04-01 | WRKD938 | LIMOD |
| 2020-12-17 | WRKD938 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4364922 | 2026-08-02 01:22:01 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKD938 | ULS 4364922 | 2026-08-02 01:22:01 |
| Status | A | ULS 4364922 | 2026-08-02 01:22:01 |
| Service | IG | ULS 4364922 | 2026-08-02 01:22:01 |
| Grant Date | 2020-12-17 | ULS 4364922 | 2026-08-02 01:22:01 |
| Expiration Date | 2030-12-17 | ULS 4364922 | 2026-08-02 01:22:01 |