Universal Licensing System
WRJU370
License details
| ULS identifier | 4348199 |
|---|---|
| Call sign | WRJU370 |
| Radio service | IG |
| Status | A |
| Grant date | 2020-10-28 |
| Expiration | 2030-10-28 |
| Frequency range | 451.45 - 464.15 MHz (6 frequencies) |
| Locations | 6 |
| Representative location | Vicksburg, KALAMAZOO, MI |
| Coordinates | 42.1215278, -85.3514167 |
| Source archive | l_LMpriv.zip |
| Dataset refreshed | 2026-08-02 01:18:58 |
Licensee
| Name | Greenmark Equipment |
|---|---|
| Applicant type | C |
| FRN | 0019124742 |
| Location | Three Rivers, MI |
| Address | 16700 Heimbach Rd, Three Rivers, MI, 49093 |
| Phone | 2692731200 |
| [email protected] |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 6 | 1 | FB6 | 451.45000000 | 25.000000 | 100.000000 | |||
| 1 | 1 | FB6 | 452.45000000 | 25.000000 | 100.000000 | |||
| 5 | 1 | FB6 | 452.72500000 | 25.000000 | 100.000000 | |||
| 3 | 1 | FB6 | 453.00000000 | 25.000000 | 100.000000 | |||
| 4 | 1 | FB6 | 461.81250000 | 25.000000 | 100.000000 | |||
| 2 | 1 | FB6 | 464.15000000 | 25.000000 | 100.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 6 | 1 | 451.45000000 | 11K2F1D | |
| 1 | 1 | 452.45000000 | 11K2F1D | |
| 5 | 1 | 452.72500000 | 11K2F1D | |
| 3 | 1 | 453.00000000 | 11K2F1D | |
| 4 | 1 | 461.81250000 | 11K2F1D | |
| 2 | 1 | 464.15000000 | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | 13673 S 42nd St, Vicksburg, KALAMAZOO, MI | 42.12152778, -85.35141667 | 288.000 m | SILO | 29.000 m structure / 33.400 m overall | |
| 2 | T | 8800 Darby Rd, Clarksville, IONIA, MI | 42.86255556, -85.22369444 | 253.000 m | SILO | 29.000 m structure / 33.400 m overall | |
| 3 | T | 10234 Shavehead Lake Rd, Constantine, CASS, MI | 41.84477778, -85.76627778 | 267.000 m | SILO | 23.000 m structure / 27.500 m overall | |
| 4 | T | 2525 84th Ave, Zeeland, OTTAWA, MI | 42.81347222, -85.98655556 | 206.100 m | SILO | 38.000 m structure / 42.700 m overall | |
| 5 | T | 4347 Fitzner Rd, Greenville, MONTCALM, MI | 43.23055556, -85.23161111 | 272.000 m | SILO | 29.000 m structure / 33.500 m overall | |
| 6 | T | 1652 11 Mile Rd, Remus, MECOSTA, MI | 43.58261111, -85.11100000 | 310.600 m | SILO | 35.000 m structure / 39.600 m overall |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | 33.400 m | 46.800 | |||||
| 1 | 2 | T | 33.400 m | 41.000 | |||||
| 1 | 3 | T | 27.500 m | 39.300 | |||||
| 1 | 4 | T | 42.700 m | 46.000 | |||||
| 1 | 5 | T | 33.500 m | 45.000 | |||||
| 1 | 6 | T | 39.600 m | 54.700 |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | 16700 Heimbach Rd, Three Rivers, MI | ST. JOSEPH | 2692731200 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2021-12-21 | WRJU370 | FRATRE |
| 2021-12-01 | WRJU370 | PNLISR |
| 2021-12-01 | WRJU370 | LETTRS |
| 2020-10-28 | WRJU370 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 4348199 | 2026-08-02 01:18:58 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | WRJU370 | ULS 4348199 | 2026-08-02 01:18:58 |
| Status | A | ULS 4348199 | 2026-08-02 01:18:58 |
| Service | IG | ULS 4348199 | 2026-08-02 01:18:58 |
| Grant Date | 2020-10-28 | ULS 4348199 | 2026-08-02 01:18:58 |
| Expiration Date | 2030-10-28 | ULS 4348199 | 2026-08-02 01:18:58 |