Universal Licensing System
WRUJ420
National Protective Systems Inc.
License details
| ULS identifier | 4658433 |
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| Call sign | WRUJ420 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2022-09-01 |
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| Expiration | 2032-09-01 |
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| Frequency range | 451.5 - 469.575 MHz (4 frequencies) |
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| Locations | 4 |
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| Representative location | Madison, NEW HAVEN, CT |
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| Coordinates | 41.2919722, -72.6191944 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:19:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.50000000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | FB2 | 451.50000000 | | | 10.000000 | 10.000000 | |
| 3 | 1 | MO | 456.50000000 | | | 10.000000 | 10.000000 | |
| 4 | 1 | MO | 456.50000000 | | | 10.000000 | 10.000000 | |
| 1 | 1 | FB2 | 464.57500000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | FB2 | 464.57500000 | | | 10.000000 | 10.000000 | |
| 3 | 1 | MO | 469.57500000 | | | 10.000000 | 10.000000 | |
| 4 | 1 | MO | 469.57500000 | | | 10.000000 | 10.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.50000000 | | 11K0F1D |
| 2 | 1 | 451.50000000 | | 11K0F1D |
| 3 | 1 | 456.50000000 | | 11K0F1D |
| 4 | 1 | 456.50000000 | | 11K0F1D |
| 1 | 1 | 464.57500000 | | 11K0F1D |
| 2 | 1 | 464.57500000 | | 11K0F1D |
| 3 | 1 | 469.57500000 | | 11K0F1D |
| 4 | 1 | 469.57500000 | | 11K0F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 286 Greenhill Rd, Madison, NEW HAVEN, CT | 41.29197222, -72.61919444 | 8.000 m | B | 14.900 m structure / 14.900 m overall | |
| 2 | T | 8 Campus Drive, Madison, NEW HAVEN, CT | 41.29652778, -72.57244444 | 6.000 m | LTOWER | 42.800 m structure / 48.800 m overall | |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 14.900 m | | | | -11.900 | |
| 1 | 2 | T | | 33.500 m | | | | 1.800 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1 Meridian Rd., Eatontown, NJ | MONMOUTH | 9789984756 |
License history
| Date | File or call sign | Action |
|---|
| 2022-09-01 | WRUJ420 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4658433 | 2026-08-02 01:19:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRUJ420 | ULS 4658433 | 2026-08-02 01:19:20 |
| Status | A | ULS 4658433 | 2026-08-02 01:19:20 |
| Service | IG | ULS 4658433 | 2026-08-02 01:19:20 |
| Grant Date | 2022-09-01 | ULS 4658433 | 2026-08-02 01:19:20 |
| Expiration Date | 2032-09-01 | ULS 4658433 | 2026-08-02 01:19:20 |