Universal Licensing System
WRNU770
BALTIMORE COUNTY PUBLIC SCHOOLS
License details
| ULS identifier | 4491403 |
|---|---|
| Call sign | WRNU770 |
| Radio service | IG |
| Status | A |
| Grant date | 2021-08-25 |
| Expiration | 2031-08-25 |
| Frequency range | 451.3875 - 467.425 MHz (9 frequencies) |
| Locations | 3 |
| Representative location | Owings Mills, BALTIMORE, MD |
| Coordinates | 39.4233889, -76.7950556 |
| Source archive | l_LMpriv.zip |
| Dataset refreshed | 2026-08-02 01:19:42 |
Licensee
| Name | BALTIMORE COUNTY PUBLIC SCHOOLS |
|---|---|
| Applicant type | G |
| FRN | 0020227526 |
| Location | ESSEX, MD |
| Address | 600 STEMMERS RUN ROAD, ESSEX, MD, 21222 |
| Phone | 4438099888 |
| [email protected] |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 16 | 1 | MO | 451.38750000 | 4.000000 | 4.000000 | |||
| 16 | 1 | MO | 451.66250000 | 4.000000 | 4.000000 | |||
| 13 | 1 | MO | 451.68750000 | 4.000000 | 4.000000 | |||
| 11 | 1 | MO | 452.03750000 | 4.000000 | 4.000000 | |||
| 12 | 1 | MO | 452.16250000 | 4.000000 | 4.000000 | |||
| 13 | 1 | MO | 452.31250000 | 4.000000 | 4.000000 | |||
| 13 | 1 | MO | 452.41250000 | 4.000000 | 4.000000 | |||
| 11 | 1 | MO | 452.63750000 | 4.000000 | 4.000000 | |||
| 16 | 1 | MO | 452.68750000 | 4.000000 | 4.000000 | |||
| 12 | 1 | MO | 452.78750000 | 4.000000 | 4.000000 | |||
| 12 | 1 | MO | 452.83750000 | 4.000000 | 4.000000 | |||
| 16 | 1 | MO | 456.38750000 | 4.000000 | 4.000000 | |||
| 11 | 1 | MO | 456.61250000 | 4.000000 | 4.000000 | |||
| 16 | 1 | MO | 456.66250000 | 4.000000 | 4.000000 | |||
| 13 | 1 | MO | 456.68750000 | 4.000000 | 4.000000 | |||
| 11 | 1 | MO | 457.03750000 | 4.000000 | 4.000000 | |||
| 12 | 1 | MO | 457.16250000 | 4.000000 | 4.000000 | |||
| 13 | 1 | MO | 457.31250000 | 4.000000 | 4.000000 | |||
| 11 | 1 | MO | 457.63750000 | 4.000000 | 4.000000 | |||
| 12 | 1 | MO | 457.83750000 | 4.000000 | 4.000000 | |||
| 14 | 1 | FB2 | 462.42500000 | 50.000000 | 35.000000 | |||
| 15 | 1 | MO | 462.42500000 | 4.000000 | 4.000000 | |||
| 1 | 1 | FB2 | 463.57500000 | 25.000000 | 25.000000 | |||
| 2 | 1 | MO | 463.57500000 | 4.000000 | 4.000000 | |||
| 5 | 1 | FB2 | 463.83750000 | 50.000000 | 35.000000 | |||
| 6 | 1 | MO | 463.83750000 | 4.000000 | 4.000000 | |||
| 7 | 1 | FB2 | 464.06250000 | 50.000000 | 35.000000 | |||
| 8 | 1 | MO | 464.06250000 | 4.000000 | 4.000000 | |||
| 9 | 1 | FB2 | 464.31250000 | 50.000000 | 35.000000 | |||
| 10 | 1 | MO | 464.31250000 | 4.000000 | 4.000000 | |||
| 3 | 1 | FB2 | 464.58750000 | 25.000000 | 25.000000 | |||
| 4 | 1 | MO | 464.58750000 | 4.000000 | 4.000000 | |||
| 15 | 1 | MO | 467.42500000 | 4.000000 | 4.000000 | |||
| 2 | 1 | MO | 468.57500000 | 4.000000 | 4.000000 | |||
| 6 | 1 | MO | 468.83750000 | 4.000000 | 4.000000 | |||
| 8 | 1 | MO | 469.06250000 | 4.000000 | 4.000000 | |||
| 10 | 1 | MO | 469.31250000 | 4.000000 | 4.000000 | |||
| 4 | 1 | MO | 469.58750000 | 4.000000 | 4.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 16 | 1 | 451.38750000 | 7K60FXD | |
| 16 | 1 | 451.38750000 | 11K2F3E | |
| 16 | 1 | 451.38750000 | 7K60FXE | |
| 16 | 1 | 451.66250000 | 11K2F3E | |
| 16 | 1 | 451.66250000 | 7K60FXD | |
| 16 | 1 | 451.66250000 | 7K60FXE | |
| 13 | 1 | 451.68750000 | 7K60FXD | |
| 13 | 1 | 451.68750000 | 7K60FXE | |
| 13 | 1 | 451.68750000 | 11K2F3E | |
| 11 | 1 | 452.03750000 | 11K2F3E | |
| 11 | 1 | 452.03750000 | 7K60FXD | |
| 11 | 1 | 452.03750000 | 7K60FXE | |
| 12 | 1 | 452.16250000 | 7K60FXE | |
| 12 | 1 | 452.16250000 | 7K60FXD | |
| 12 | 1 | 452.16250000 | 11K2F3E | |
| 13 | 1 | 452.31250000 | 7K60FXE | |
| 13 | 1 | 452.31250000 | 7K60FXD | |
| 13 | 1 | 452.31250000 | 11K2F3E | |
| 13 | 1 | 452.41250000 | 11K2F3E | |
| 13 | 1 | 452.41250000 | 7K60FXD | |
| 13 | 1 | 452.41250000 | 7K60FXE | |
| 11 | 1 | 452.63750000 | 11K2F3E | |
| 11 | 1 | 452.63750000 | 7K60FXD | |
| 11 | 1 | 452.63750000 | 7K60FXE | |
| 16 | 1 | 452.68750000 | 7K60FXE | |
| 16 | 1 | 452.68750000 | 11K2F3E | |
| 16 | 1 | 452.68750000 | 7K60FXD | |
| 12 | 1 | 452.78750000 | 7K60FXE | |
| 12 | 1 | 452.78750000 | 11K2F3E | |
| 12 | 1 | 452.78750000 | 7K60FXD | |
| 12 | 1 | 452.83750000 | 7K60FXE | |
| 12 | 1 | 452.83750000 | 7K60FXD | |
| 12 | 1 | 452.83750000 | 11K2F3E | |
| 16 | 1 | 456.38750000 | 11K2F3E | |
| 16 | 1 | 456.38750000 | 7K60FXE | |
| 16 | 1 | 456.38750000 | 7K60FXD | |
| 11 | 1 | 456.61250000 | 11K2F3E | |
| 11 | 1 | 456.61250000 | 7K60FXE | |
| 11 | 1 | 456.61250000 | 7K60FXD | |
| 16 | 1 | 456.66250000 | 7K60FXE | |
| 16 | 1 | 456.66250000 | 11K2F3E | |
| 16 | 1 | 456.66250000 | 7K60FXD | |
| 13 | 1 | 456.68750000 | 7K60FXE | |
| 13 | 1 | 456.68750000 | 11K2F3E | |
| 13 | 1 | 456.68750000 | 7K60FXD | |
| 11 | 1 | 457.03750000 | 7K60FXD | |
| 11 | 1 | 457.03750000 | 7K60FXE | |
| 11 | 1 | 457.03750000 | 11K2F3E | |
| 12 | 1 | 457.16250000 | 7K60FXE | |
| 12 | 1 | 457.16250000 | 11K2F3E | |
| 12 | 1 | 457.16250000 | 7K60FXD | |
| 13 | 1 | 457.31250000 | 11K2F3E | |
| 13 | 1 | 457.31250000 | 7K60FXD | |
| 13 | 1 | 457.31250000 | 7K60FXE | |
| 11 | 1 | 457.63750000 | 7K60FXE | |
| 11 | 1 | 457.63750000 | 11K2F3E | |
| 11 | 1 | 457.63750000 | 7K60FXD | |
| 12 | 1 | 457.83750000 | 7K60FXD | |
| 12 | 1 | 457.83750000 | 7K60FXE | |
| 12 | 1 | 457.83750000 | 11K2F3E | |
| 14 | 1 | 462.42500000 | 7K60FXD | |
| 14 | 1 | 462.42500000 | 7K60FXE | |
| 14 | 1 | 462.42500000 | 11K2F3E | |
| 15 | 1 | 462.42500000 | 11K2F3E | |
| 15 | 1 | 462.42500000 | 7K60FXE | |
| 15 | 1 | 462.42500000 | 7K60FXD | |
| 1 | 1 | 463.57500000 | 7K60FXE | |
| 1 | 1 | 463.57500000 | 11K2F3E | |
| 2 | 1 | 463.57500000 | 11K2F3E | |
| 2 | 1 | 463.57500000 | 7K60FXE | |
| 5 | 1 | 463.83750000 | 11K2F3E | |
| 5 | 1 | 463.83750000 | 7K60FXE | |
| 5 | 1 | 463.83750000 | 7K60FXD | |
| 6 | 1 | 463.83750000 | 7K60FXD | |
| 6 | 1 | 463.83750000 | 11K2F3E | |
| 6 | 1 | 463.83750000 | 7K60FXE | |
| 7 | 1 | 464.06250000 | 11K2F3E | |
| 7 | 1 | 464.06250000 | 7K60FXE | |
| 7 | 1 | 464.06250000 | 7K60FXD | |
| 8 | 1 | 464.06250000 | 7K60FXE | |
| 8 | 1 | 464.06250000 | 11K2F3E | |
| 8 | 1 | 464.06250000 | 7K60FXD | |
| 9 | 1 | 464.31250000 | 7K60FXE | |
| 9 | 1 | 464.31250000 | 7K60FXD | |
| 9 | 1 | 464.31250000 | 11K2F3E | |
| 10 | 1 | 464.31250000 | 7K60FXE | |
| 10 | 1 | 464.31250000 | 7K60FXD | |
| 10 | 1 | 464.31250000 | 11K2F3E | |
| 3 | 1 | 464.58750000 | 11K2F3E | |
| 3 | 1 | 464.58750000 | 7K60FXE | |
| 4 | 1 | 464.58750000 | 11K2F3E | |
| 4 | 1 | 464.58750000 | 7K60FXE | |
| 15 | 1 | 467.42500000 | 7K60FXE | |
| 15 | 1 | 467.42500000 | 11K2F3E | |
| 15 | 1 | 467.42500000 | 7K60FXD | |
| 2 | 1 | 468.57500000 | 11K2F3E | |
| 2 | 1 | 468.57500000 | 7K60FXE | |
| 6 | 1 | 468.83750000 | 7K60FXD | |
| 6 | 1 | 468.83750000 | 11K2F3E | |
| 6 | 1 | 468.83750000 | 7K60FXE | |
| 8 | 1 | 469.06250000 | 7K60FXE | |
| 8 | 1 | 469.06250000 | 11K2F3E | |
| 8 | 1 | 469.06250000 | 7K60FXD | |
| 10 | 1 | 469.31250000 | 7K60FXD | |
| 10 | 1 | 469.31250000 | 11K2F3E | |
| 10 | 1 | 469.31250000 | 7K60FXE | |
| 4 | 1 | 469.58750000 | 7K60FXE | |
| 4 | 1 | 469.58750000 | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | 800 Middle River Road, Middle River, BALTIMORE, MD | 39.34552778, -76.45080556 | 17.000 m | BANT | 6.100 m structure / 7.600 m overall | |
| 2 | T | ||||||
| 3 | T | 9200 Old Harford Road, Parkville, BALTIMORE, MD | 39.38313889, -76.54372222 | 105.000 m | BANT | 6.100 m structure / 7.600 m overall | |
| 4 | T | ||||||
| 5 | T | 421 Bloomsbury Ave, Baltimore, BALTIMORE, MD | 39.25947222, -76.73113889 | 135.000 m | BANT | 13.700 m structure / 18.300 m overall | N |
| 6 | T | N | |||||
| 7 | T | 3800 Hollins Ferry Rd, Baltimore, BALTIMORE, MD | 39.28752778, -76.63594444 | 24.000 m | BANT | 7.600 m structure / 12.200 m overall | N |
| 8 | T | N | |||||
| 9 | T | 1849 Gwynn Oak Ave, Baltimore, BALTIMORE, MD | 39.31597222, -76.72819444 | 102.000 m | BANT | 9.100 m structure / 13.700 m overall | N |
| 10 | T | N | |||||
| 11 | T | Baltimore, BALTIMORE, MD | 39.25947222, -76.73113889 | N | |||
| 12 | T | Baltimore, BALTIMORE, MD | 39.28752778, -76.63594444 | N | |||
| 13 | T | Baltimore, BALTIMORE, MD | 39.31597222, -76.72819444 | N | |||
| 14 | T | 124 S. Tollgate Road, Owings Mills, BALTIMORE, MD | 39.42338889, -76.79505556 | 188.000 m | POLE | 21.300 m structure / 24.400 m overall | N |
| 15 | T | N | |||||
| 16 | T | Owings Mills, BALTIMORE, MD | 39.42338889, -76.79505556 | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | 7.600 m | -9.600 | |||||
| 1 | 2 | T | |||||||
| 1 | 3 | T | 7.600 m | 41.000 | |||||
| 1 | 4 | T | |||||||
| 1 | 5 | T | 18.300 m | 72.200 | |||||
| 1 | 6 | T | |||||||
| 1 | 7 | T | 12.200 m | -26.600 | |||||
| 1 | 8 | T | |||||||
| 1 | 9 | T | 13.700 m | 12.200 | |||||
| 1 | 10 | T | |||||||
| 1 | 11 | T | |||||||
| 1 | 12 | T | |||||||
| 1 | 13 | T | |||||||
| 1 | 14 | T | 24.400 m | 59.000 | |||||
| 1 | 15 | T | |||||||
| 1 | 16 | T |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | 800 Middle River Road, Middle River, MD | BALTIMORE | 4438099888 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2023-12-08 | WRNU770 | LIMOD |
| 2023-09-18 | WRNU770 | LIMOD |
| 2022-10-24 | WRNU770 | FRATRE |
| 2022-09-28 | WRNU770 | LETTRS |
| 2022-09-28 | WRNU770 | PNLISR |
| 2021-08-25 | WRNU770 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 4491403 | 2026-08-02 01:19:42 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | WRNU770 | ULS 4491403 | 2026-08-02 01:19:42 |
| Status | A | ULS 4491403 | 2026-08-02 01:19:42 |
| Service | IG | ULS 4491403 | 2026-08-02 01:19:42 |
| Grant Date | 2021-08-25 | ULS 4491403 | 2026-08-02 01:19:42 |
| Expiration Date | 2031-08-25 | ULS 4491403 | 2026-08-02 01:19:42 |