Universal Licensing System
WRDA628
DURHAM SCHOOL SERVICES
License details
| ULS identifier | 4133373 |
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| Call sign | WRDA628 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-03-13 |
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| Expiration | 2029-03-13 |
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| Frequency range | 152.405 - 157.665 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | WALLINGFORD, NEW HAVEN, CT |
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| Coordinates | 41.4892778, -72.7681667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:20:26 |
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Licensee
| Name | DURHAM SCHOOL SERVICES |
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| Applicant type | C |
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| FRN | 0021789714 |
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| Location | WARRENVILLE, IL |
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| Address | 4300 WEAVER PARKWAY, WARRENVILLE, IL, 60555 |
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| Phone | 6308215400 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB2 | 152.40500000 | | | 40.000000 | 160.000000 | |
| 2 | 1 | MO | 152.40500000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 157.66500000 | | | 45.000000 | 45.000000 | |
| 3 | 1 | FX1 | 157.66500000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 152.40500000 | | 11K2F3E |
| 2 | 1 | 152.40500000 | | 11K2F3E |
| 2 | 1 | 157.66500000 | | 11K2F3E |
| 3 | 1 | 157.66500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 990 NORTHROP ROAD, WALLINGFORD, NEW HAVEN, CT | 41.48927778, -72.76816667 | 118.300 m | LTOWER | 11.000 m structure / 17.000 m overall | |
| 2 | T | NEW HAVEN, CT | | | | | |
| 3 | T | NEW HAVEN, CT | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 17.000 m | | | | 52.400 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 990 NORTHROP ROAD, WALLINGFORD, CT | NEW HAVEN | 2032694171 |
License history
| Date | File or call sign | Action |
|---|
| 2025-07-14 | WRDA628 | LITRAN |
| 2020-05-04 | WRDA628 | FRATRE |
| 2020-04-22 | WRDA628 | PNLISR |
| 2020-04-22 | WRDA628 | LETTRS |
| 2019-12-17 | WRDA628 | LETCNS |
| 2019-03-13 | WRDA628 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4133373 | 2026-08-02 01:20:26 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRDA628 | ULS 4133373 | 2026-08-02 01:20:26 |
| Status | A | ULS 4133373 | 2026-08-02 01:20:26 |
| Service | IG | ULS 4133373 | 2026-08-02 01:20:26 |
| Grant Date | 2019-03-13 | ULS 4133373 | 2026-08-02 01:20:26 |
| Expiration Date | 2029-03-13 | ULS 4133373 | 2026-08-02 01:20:26 |