Universal Licensing System
WRCK990
SUBSTITUTE TEACHER SERVICE
License details
| ULS identifier | 4095724 |
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| Call sign | WRCK990 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2018-10-29 |
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| Expiration | 2028-10-29 |
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| Frequency range | 451.3125 - 452.9875 MHz (3 frequencies) |
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| Locations | 1 |
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| Representative location | ASTON, DELAWARE, PA |
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| Coordinates | 39.8571667, -75.4196111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:24 |
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Licensee
| Name | SUBSTITUTE TEACHER SERVICE |
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| Applicant type | C |
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| FRN | 0027881457 |
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| Location | ASTON, PA |
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| Address | 2901 DUTTON MILL RD, ASTON, PA, 19014 |
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| Phone | 6105666466 |
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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 | MO | 451.31250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.78750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.98750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.31250000 | | 7K60FXE |
| 1 | 1 | 452.78750000 | | 7K60FXE |
| 1 | 1 | 452.98750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ASTON, DELAWARE, PA | 39.85716667, -75.41961111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 2901 DUTTON MILL RD, ASTON, PA | DELAWARE | 6105666466 |
License history
| Date | File or call sign | Action |
|---|
| 2019-07-30 | WRCK990 | LETCNS |
| 2018-10-29 | WRCK990 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4095724 | 2026-08-02 01:22:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRCK990 | ULS 4095724 | 2026-08-02 01:22:24 |
| Status | A | ULS 4095724 | 2026-08-02 01:22:24 |
| Service | IG | ULS 4095724 | 2026-08-02 01:22:24 |
| Grant Date | 2018-10-29 | ULS 4095724 | 2026-08-02 01:22:24 |
| Expiration Date | 2028-10-29 | ULS 4095724 | 2026-08-02 01:22:24 |