Universal Licensing System
WQDF257
DURHAM SCHOOL SERVICES
License details
| ULS identifier | 2740058 |
|---|
| Call sign | WQDF257 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-08-07 |
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| Expiration | 2035-08-10 |
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| Frequency range | 160.02 MHz |
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| Locations | 2 |
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| Representative location | Havana, MASON, IL |
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| Coordinates | 40.2963889, -90.0547222 |
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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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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 160.02000000 | | | 25.000000 | 100.000000 | |
| 2 | 1 | MO | 160.02000000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 160.02000000 | | 11K2F3E |
| 2 | 1 | 160.02000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 501 S. McKinley, Havana, MASON, IL | 40.29638889, -90.05472222 | 144.000 m | BANT | 150.100 m structure / 156.200 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 12.100 m | | 5.0000 | | 8.500 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 501 S. McKinley, Havana, IL | MASON | 3095433036 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-07 | WQDF257 | LIREN |
| 2025-07-14 | WQDF257 | LITRAN |
| 2025-05-19 | WQDF257 | LETRES |
| 2015-08-08 | WQDF257 | LIREN |
| 2015-08-07 | WQDF257 | ESUAPR |
| 2015-05-18 | WQDF257 | LETRES |
| 2012-08-13 | WQDF257 | ESUAPR |
| 2012-08-13 | WQDF257 | EFUAPR |
| 2012-08-13 | WQDF257 | ESUFNR |
| 2012-08-13 | WQDF257 | EFUFNR |
| 2012-06-12 | WQDF257 | LIAUA |
| 2012-06-11 | WQDF257 | ESUAPR |
| 2012-05-24 | WQDF257 | ESUFNR |
| 2008-12-31 | WQDF257 | LIASS |
| 2008-12-05 | WQDF257 | LTSAPR |
| 2006-05-08 | WQDF257 | LETCNS |
| 2005-11-10 | WQDF257 | LITRAN |
| 2005-08-10 | WQDF257 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2740058 | 2026-08-02 01:20:26 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQDF257 | ULS 2740058 | 2026-08-02 01:20:26 |
| Status | A | ULS 2740058 | 2026-08-02 01:20:26 |
| Service | IG | ULS 2740058 | 2026-08-02 01:20:26 |
| Grant Date | 2025-08-07 | ULS 2740058 | 2026-08-02 01:20:26 |
| Expiration Date | 2035-08-10 | ULS 2740058 | 2026-08-02 01:20:26 |