Universal Licensing System
WSJJ251
Amazon.Com Services LLC
License details
| ULS identifier | 5174797 |
|---|
| Call sign | WSJJ251 |
|---|
| Radio service | YG |
|---|
| Status | A |
|---|
| Grant date | 2025-07-31 |
|---|
| Expiration | 2035-07-31 |
|---|
| Frequency range | 451.3625 - 468.4875 MHz (11 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | Boston, SUFFOLK, MA |
|---|
| Coordinates | 42.3500000, -71.0447222 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:33 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | MO | 451.36250000 | | | 40.000000 | 4.000000 | |
| 3 | 1 | MO | 452.83750000 | | | 40.000000 | 4.000000 | |
| 3 | 1 | MO | 452.98750000 | | | 40.000000 | 4.000000 | |
| 3 | 1 | MO | 457.83750000 | | | 40.000000 | 4.000000 | |
| 3 | 1 | MO | 457.98750000 | | | 40.000000 | 4.000000 | |
| 1 | 1 | FB2 | 463.41250000 | | | 50.000000 | 40.000000 | |
| 2 | 1 | MO | 463.41250000 | | | 40.000000 | 4.000000 | |
| 1 | 1 | FB2 | 463.46250000 | | | 50.000000 | 40.000000 | |
| 2 | 1 | MO | 463.46250000 | | | 40.000000 | 4.000000 | |
| 1 | 1 | FB2 | 463.48750000 | | | 50.000000 | 40.000000 | |
| 2 | 1 | MO | 463.48750000 | | | 40.000000 | 4.000000 | |
| 2 | 1 | MO | 468.41250000 | | | 40.000000 | 4.000000 | |
| 2 | 1 | MO | 468.46250000 | | | 40.000000 | 4.000000 | |
| 2 | 1 | MO | 468.48750000 | | | 40.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 451.36250000 | | 7K60FXE |
| 3 | 1 | 452.83750000 | | 7K60FXE |
| 3 | 1 | 452.98750000 | | 7K60FXE |
| 3 | 1 | 457.83750000 | | 7K60FXE |
| 3 | 1 | 457.98750000 | | 7K60FXE |
| 1 | 1 | 463.41250000 | | 7K60FXE |
| 2 | 1 | 463.41250000 | | 7K60FXE |
| 1 | 1 | 463.46250000 | | 7K60FXE |
| 2 | 1 | 463.46250000 | | 7K60FXE |
| 1 | 1 | 463.48750000 | | 7K60FXE |
| 2 | 1 | 463.48750000 | | 7K60FXE |
| 2 | 1 | 468.41250000 | | 7K60FXE |
| 2 | 1 | 468.46250000 | | 7K60FXE |
| 2 | 1 | 468.48750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 55 Pier 4 BLVD, Boston, SUFFOLK, MA | 42.35000000, -71.04472222 | 2.000 m | B | 84.400 m structure / 84.400 m overall | |
| 2 | T | | | | | | |
| 3 | T | Boston, SUFFOLK, MA | 42.35000000, -71.04472222 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 84.400 m | | | | 70.900 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 55 Pier 4 BLVD, Boston, MA | SUFFOLK | 7039263217 |
License history
| Date | File or call sign | Action |
|---|
| 2026-05-05 | WSJJ251 | LETCNS |
| 2025-07-31 | WSJJ251 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5174797 | 2026-08-02 01:23:33 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSJJ251 | ULS 5174797 | 2026-08-02 01:23:33 |
| Status | A | ULS 5174797 | 2026-08-02 01:23:33 |
| Service | YG | ULS 5174797 | 2026-08-02 01:23:33 |
| Grant Date | 2025-07-31 | ULS 5174797 | 2026-08-02 01:23:33 |
| Expiration Date | 2035-07-31 | ULS 5174797 | 2026-08-02 01:23:33 |