Universal Licensing System
WRDY303
NATIONAL GRID USA SERVICE COMPANY INC
License details
| ULS identifier | 4190518 |
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| Call sign | WRDY303 |
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| Radio service | MG |
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| Status | A |
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| Grant date | 2019-08-19 |
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| Expiration | 2029-08-19 |
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| Frequency range | 928.15625 - 952.15625 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | AYER, MIDDLESEX, MA |
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| Coordinates | 42.5695278, -71.5308889 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:50 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 3 | FXO | 928.15625000 | | | | | |
| 1 | 1 | FXO | 952.15625000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 3 | 928.15625000 | | 12K0G1D |
| 1 | 3 | 928.15625000 | | 12K0D1D |
| 1 | 1 | 952.15625000 | | 12K0F1D |
| 1 | 1 | 952.15625000 | | 12K0G1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SANDY POND RD., AYER, MIDDLESEX, MA | 42.56952778, -71.53088889 | 82.000 m | GTOWER | 60.900 m structure / 60.900 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | CommScope DB589Y | | V | 11.1000 | 360.0000 | | |
| 2 | 1 | R | CommScope ASPJ810 | | | 12.1000 | | | |
| 3 | 1 | T | CommScope ASPJ810 | | V | 12.1000 | 999.0000 | | |
| 4 | 1 | R | CommScope DB589Y | | | 11.1000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2020-11-24 | WRDY303 | LETCNS |
| 2019-08-19 | WRDY303 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4190518 | 2026-08-02 02:47:50 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRDY303 | ULS 4190518 | 2026-08-02 02:47:50 |
| Status | A | ULS 4190518 | 2026-08-02 02:47:50 |
| Service | MG | ULS 4190518 | 2026-08-02 02:47:50 |
| Grant Date | 2019-08-19 | ULS 4190518 | 2026-08-02 02:47:50 |
| Expiration Date | 2029-08-19 | ULS 4190518 | 2026-08-02 02:47:50 |