Universal Licensing System
WPMJ535
MARYLAND TRANSPORTATION AUTHORITY
License details
| ULS identifier | 1147424 |
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| Call sign | WPMJ535 |
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| Radio service | LN |
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| Status | A |
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| Grant date | 2024-06-06 |
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| Expiration | 2034-08-25 |
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| Frequency range | 911.5 - 916.5 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | BALTIMORE, BALTIMORE, MD |
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| Coordinates | 39.2265833, -76.5156667 |
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| Source archive | l_LMcomm.zip |
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| Dataset refreshed | 2026-08-02 00:43:33 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | LR | 911.50000000 | | | 2.000000 | 30.000000 | |
| 1 | 2 | LR | 914.00000000 | | | 2.000000 | 30.000000 | |
| 1 | 1 | LR | 915.75000000 | | | 2.000000 | 30.000000 | |
| 1 | 2 | LR | 915.75000000 | | | 2.000000 | 30.000000 | |
| 1 | 3 | LR | 915.75000000 | | | 2.000000 | 30.000000 | |
| 1 | 3 | LR | 916.50000000 | | | 2.000000 | 30.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 911.50000000 | | 679KK1D |
| 1 | 1 | 911.50000000 | | 475KK1D |
| 1 | 2 | 914.00000000 | | 679KK1D |
| 1 | 2 | 914.00000000 | | 475KK1D |
| 1 | 1 | 915.75000000 | | 1M66K1D |
| 1 | 2 | 915.75000000 | | 1M66K1D |
| 1 | 3 | 915.75000000 | | 1M66K1D |
| 1 | 3 | 916.50000000 | | 475KK1D |
| 1 | 3 | 916.50000000 | | 679KK1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 300 AUTHORITY DR, BALTIMORE, BALTIMORE, MD | 39.22658333, -76.51566667 | 0.500 m | PIPE | 5.600 m structure / 5.600 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 5.600 m | H | 14.0000 | 29.0000 | 5.600 | |
| 2 | 1 | T | | 5.600 m | H | 14.0000 | 29.0000 | 5.600 | |
| 3 | 1 | T | | 5.600 m | H | 14.0000 | 29.0000 | 5.600 | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 300 Authority Drive, Baltimore, MD | BALTIMORE | 4105377851 |
| 3 | 138 driftwood ct, joppa, md, 21085-4516, USA, Joppa, MD | HARFORD | 4439898590 |
License history
| Date | File or call sign | Action |
|---|
| 2025-05-20 | WPMJ535 | LIAUA |
| 2024-06-06 | WPMJ535 | LIREN |
| 2024-05-27 | WPMJ535 | ESURNW |
| 2023-06-30 | WPMJ535 | LIMOD |
| 2020-11-17 | WPMJ535 | LETCNS |
| 2020-02-13 | WPMJ535 | LIMOD |
| 2014-08-29 | WPMJ535 | LIREN |
| 2014-08-19 | WPMJ535 | ESCAPR |
| 2014-06-02 | WPMJ535 | LETRES |
| 2004-07-09 | WPMJ535 | LIREN |
| 2004-05-31 | WPMJ535 | LETRES |
| 2000-09-15 | WPMJ535 | LICCNV |
| 1999-08-25 | WPMJ535 | LIMOD |
| 1999-08-25 | WPMJ535 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1147424 | 2026-08-02 00:43:33 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMJ535 | ULS 1147424 | 2026-08-02 00:43:33 |
| Status | A | ULS 1147424 | 2026-08-02 00:43:33 |
| Service | LN | ULS 1147424 | 2026-08-02 00:43:33 |
| Grant Date | 2024-06-06 | ULS 1147424 | 2026-08-02 00:43:33 |
| Expiration Date | 2034-08-25 | ULS 1147424 | 2026-08-02 00:43:33 |