Universal Licensing System
WPWM477
Comcast of Maryland, Inc.
License details
| ULS identifier | 2469858 |
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| Call sign | WPWM477 |
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| Radio service | GU |
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| Status | C |
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| Grant date | 2002-12-19 |
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| Expiration | 2012-12-19 |
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| Cancellation | 2010-12-01 |
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| Frequency range | 899.7125 - 939.225 MHz (4 frequencies) |
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| Locations | 3 |
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| Representative location | BALTIMORE, BALTIMORE CITY, MD |
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| Coordinates | 39.3361111, -76.6494444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:12:51 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO | 899.71250000 | | | 100.000000 | 100.000000 | |
| 3 | 1 | FX1 | 899.71250000 | | | 30.000000 | 60.000000 | |
| 2 | 1 | MO | 900.22500000 | | | 100.000000 | 100.000000 | |
| 3 | 1 | FX1 | 900.22500000 | | | 30.000000 | 60.000000 | |
| 1 | 1 | FB2 | 938.71250000 | | | 150.000000 | 350.000000 | |
| 2 | 1 | MO | 938.71250000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB2 | 939.22500000 | | | 150.000000 | 350.000000 | |
| 2 | 1 | MO | 939.22500000 | | | 100.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 899.71250000 | | 13K6F3E |
| 3 | 1 | 899.71250000 | | 13K6F3E |
| 2 | 1 | 900.22500000 | | 13K6F3E |
| 3 | 1 | 900.22500000 | | 13K6F3E |
| 1 | 1 | 938.71250000 | | 13K6F3E |
| 2 | 1 | 938.71250000 | | 13K6F3E |
| 1 | 1 | 939.22500000 | | 13K6F3E |
| 2 | 1 | 939.22500000 | | 13K6F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3900 HOOPERAVE, BALTIMORE, BALTIMORE CITY, MD | 39.33611111, -76.64944444 | 82.000 m | TOWER | 389.200 m structure / 390.100 m overall | |
| 2 | T | | 39.33611111, -76.64944444 | 0.000 m | | | |
| 3 | T | 8301 CORPORATE DRIVE, BALTIMORE, BALTIMORE CITY, MD | | 0.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 383.000 m | V | 6.0000 | 360.0000 | 381.000 | |
| 1 | 2 | | | | | | | | |
| 1 | 3 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 8301 CORPORATE DRIVE, BALTIMORE, MD | BALTIMORE | 4109314600 |
License history
| Date | File or call sign | Action |
|---|
| 2010-12-02 | WPWM477 | LICAN |
| 2007-12-27 | WPWM477 | LIAUA |
| 2007-12-26 | WPWM477 | ESUAPR |
| 2006-12-07 | WPWM477 | LIAUA |
| 2006-12-06 | WPWM477 | ESUAPR |
| 2006-05-13 | WPWM477 | LIAUA |
| 2006-05-12 | WPWM477 | ESCAPR |
| 2004-04-27 | WPWM477 | LIAUA |
| 2004-04-27 | WPWM477 | LTSAPR |
| 2004-04-26 | WPWM477 | ESUAPR |
| 2004-04-26 | WPWM477 | EFUAPR |
| 2004-02-21 | WPWM477 | LIAUA |
| 2003-09-15 | WPWM477 | LETCNS |
| 2002-12-19 | WPWM477 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2469858 | 2026-08-02 01:12:51 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPWM477 | ULS 2469858 | 2026-08-02 01:12:51 |
| Status | C | ULS 2469858 | 2026-08-02 01:12:51 |
| Service | GU | ULS 2469858 | 2026-08-02 01:12:51 |
| Grant Date | 2002-12-19 | ULS 2469858 | 2026-08-02 01:12:51 |
| Expiration Date | 2012-12-19 | ULS 2469858 | 2026-08-02 01:12:51 |
| Cancellation Date | 2010-12-01 | ULS 2469858 | 2026-08-02 01:12:51 |