Universal Licensing System
WRKJ638
Baltimore County Public Schools
License details
| ULS identifier | 4373699 |
|---|
| Call sign | WRKJ638 |
|---|
| Radio service | YG |
|---|
| Status | A |
|---|
| Grant date | 2021-01-12 |
|---|
| Expiration | 2031-01-12 |
|---|
| Frequency range | 451.9125 - 467.075 MHz (8 frequencies) |
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| Locations | 2 |
|---|
| Representative location | Towson, BALTIMORE, MD |
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| Coordinates | 39.4026111, -76.6074722 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:00 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.91250000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB2 | 451.96250000 | | | 100.000000 | 100.000000 | |
| 3 | 1 | FB2 | 451.96250000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB2 | 452.97500000 | | | 100.000000 | 100.000000 | |
| 2 | 1 | MO | 456.91250000 | | | 40.000000 | 80.000000 | |
| 2 | 1 | MO | 456.96250000 | | | 40.000000 | 80.000000 | |
| 4 | 1 | MO | 456.96250000 | | | 40.000000 | 80.000000 | |
| 2 | 1 | MO | 457.97500000 | | | 40.000000 | 80.000000 | |
| 1 | 1 | FB2 | 461.15000000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB2 | 462.07500000 | | | 100.000000 | 100.000000 | |
| 2 | 1 | MO | 466.15000000 | | | 40.000000 | 80.000000 | |
| 2 | 1 | MO | 467.07500000 | | | 40.000000 | 80.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.91250000 | | 7K60FXD |
| 1 | 1 | 451.91250000 | | 7K60FXE |
| 1 | 1 | 451.96250000 | | 7K60FXD |
| 1 | 1 | 451.96250000 | | 7K60FXE |
| 3 | 1 | 451.96250000 | | 7K60FXE |
| 3 | 1 | 451.96250000 | | 7K60FXD |
| 1 | 1 | 452.97500000 | | 7K60FXE |
| 1 | 1 | 452.97500000 | | 7K60FXD |
| 2 | 1 | 456.91250000 | | 7K60FXE |
| 2 | 1 | 456.91250000 | | 7K60FXD |
| 2 | 1 | 456.96250000 | | 7K60FXE |
| 2 | 1 | 456.96250000 | | 7K60FXD |
| 4 | 1 | 456.96250000 | | 7K60FXD |
| 4 | 1 | 456.96250000 | | 7K60FXE |
| 2 | 1 | 457.97500000 | | 7K60FXD |
| 2 | 1 | 457.97500000 | | 7K60FXE |
| 1 | 1 | 461.15000000 | | 7K60FXD |
| 1 | 1 | 461.15000000 | | 7K60FXE |
| 1 | 1 | 462.07500000 | | 7K60FXD |
| 1 | 1 | 462.07500000 | | 7K60FXE |
| 2 | 1 | 466.15000000 | | 7K60FXE |
| 2 | 1 | 466.15000000 | | 7K60FXD |
| 2 | 1 | 467.07500000 | | 7K60FXE |
| 2 | 1 | 467.07500000 | | 7K60FXD |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | HILLTOP CIRCLE TOWER SITE, CATONSVILLE, BALTIMORE, MD | 39.26111111, -76.71316667 | 86.900 m | LTOWER | 112.800 m structure / 119.800 m overall | |
| 2 | T | | | | | | |
| 3 | T | 28 Alleghany Ave, Towson, BALTIMORE, MD | 39.40261111, -76.60747222 | 146.000 m | BANT | 101.000 m structure / 104.000 m overall | N |
| 4 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 91.400 m | | | | 19.200 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 104.000 m | | | | 144.200 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 600 Stemmers Run Rd, Essex, MD | BALTIMORE | 4438099888 |
License history
| Date | File or call sign | Action |
|---|
| 2021-11-30 | WRKJ638 | LETCNS |
| 2021-10-13 | WRKJ638 | LETCNS |
| 2021-03-01 | WRKJ638 | LIMOD |
| 2021-01-12 | WRKJ638 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4373699 | 2026-08-02 01:22:00 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKJ638 | ULS 4373699 | 2026-08-02 01:22:00 |
| Status | A | ULS 4373699 | 2026-08-02 01:22:00 |
| Service | YG | ULS 4373699 | 2026-08-02 01:22:00 |
| Grant Date | 2021-01-12 | ULS 4373699 | 2026-08-02 01:22:00 |
| Expiration Date | 2031-01-12 | ULS 4373699 | 2026-08-02 01:22:00 |