Universal Licensing System
WHH834
JOHN HOPKINS UNIVERSITY
License details
| ULS identifier | 981797 |
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| Call sign | WHH834 |
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| Radio service | MG |
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| Status | E |
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| Grant date | 2002-12-16 |
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| Expiration | 2012-10-27 |
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| Cancellation | 2012-12-29 |
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| Frequency range | 12430 - 12650 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | BALTIMORE, MD |
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| Coordinates | 39.3281389, -76.6193889 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:42:43 |
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Licensee
| Name | JOHN HOPKINS UNIVERSITY |
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| Applicant type | C |
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| FRN | 0002161057 |
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| Location | BALTIMORE, MD |
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| Address | 210 Maryland Hall, 3400 N. Charles Street, BALTIMORE, MD, 21218 |
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| Phone | 4105168708 |
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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 | 2 | FXO | 12430.00000000 | | | | | |
| 1 | 1 | FXO | 12650.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 12430.00000000 | | 18M7F9W |
| 1 | 1 | 12650.00000000 | | 18M7F9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ROWLAND HALL 34TH AND CHARLES STS, BALTIMORE, MD | 39.32813889, -76.61938889 | 70.100 m | | 96.600 m structure / 96.600 m overall | |
| 2 | R | | 39.29952778, -76.59216667 | 27.100 m | | | |
| 3 | R | | 39.28758333, -76.61522222 | 4.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | 41.4000 | 143.5000 | | |
| 1 | 2 | R | | | | 41.4000 | | | |
| 1 | 3 | R | | | | 41.4000 | | | |
| 2 | 1 | T | | | V | 41.4000 | 175.4000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2012-12-29 | WHH834 | LIEXP |
| 2012-08-06 | WHH834 | LETRES |
| 2002-12-16 | WHH834 | LIREN |
| 2002-08-05 | WHH834 | LETRES |
| 2002-01-17 | WHH834 | LIAUA |
| 1999-08-13 | WHH834 | LICCNV |
| 1997-08-08 | WHH834 | LIREN |
| 1992-10-27 | WHH834 | LIMOD |
| 1987-08-31 | WHH834 | LIMOD |
| 1983-04-29 | WHH834 | LIMOD |
| 1983-04-14 | WHH834 | LIMOD |
| 1982-08-25 | WHH834 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 981797 | 2026-08-02 02:42:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WHH834 | ULS 981797 | 2026-08-02 02:42:43 |
| Status | E | ULS 981797 | 2026-08-02 02:42:43 |
| Service | MG | ULS 981797 | 2026-08-02 02:42:43 |
| Grant Date | 2002-12-16 | ULS 981797 | 2026-08-02 02:42:43 |
| Expiration Date | 2012-10-27 | ULS 981797 | 2026-08-02 02:42:43 |
| Cancellation Date | 2012-12-29 | ULS 981797 | 2026-08-02 02:42:43 |