Universal Licensing System
WPJX428
ROCKFORD AMBULANCE INC
License details
| ULS identifier | 1240597 |
|---|
| Call sign | WPJX428 |
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| Radio service | PW |
|---|
| Status | E |
|---|
| Grant date | 2011-11-29 |
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| Expiration | 2021-12-03 |
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| Cancellation | 2022-02-05 |
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| Frequency range | 453.95 - 465.55 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | SPARTA, KENT, MI |
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| Coordinates | 43.1616944, -85.7116944 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:24:09 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 453.95000000 | | | 100.000000 | 275.000000 | |
| 2 | 1 | FB2 | 453.95000000 | | | 100.000000 | 275.000000 | |
| 4 | 1 | MO | 453.95000000 | | | 50.000000 | 50.000000 | |
| 3 | 1 | FX1 | 458.95000000 | | | 40.000000 | 150.000000 | |
| 4 | 1 | MO | 458.95000000 | | | 50.000000 | 50.000000 | |
| 4 | 1 | MO | 460.55000000 | | | 50.000000 | 50.000000 | |
| 5 | 1 | FB2 | 460.55000000 | | | 100.000000 | 120.000000 | |
| 4 | 1 | MO | 465.55000000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 453.95000000 | | 20K0F3E |
| 2 | 1 | 453.95000000 | | 20K0F3E |
| 4 | 1 | 453.95000000 | | 20K0F3E |
| 3 | 1 | 458.95000000 | | 20K0F3E |
| 4 | 1 | 458.95000000 | | 20K0F3E |
| 4 | 1 | 460.55000000 | | 20K0F3E |
| 5 | 1 | 460.55000000 | | 20K0F3E |
| 4 | 1 | 465.55000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9400 COURTLAND RD NE, ROCKFORD, KENT, MI | 43.12975000, -85.58058333 | 256.000 m | TANK | 37.000 m structure / 43.000 m overall | N |
| 2 | T | 10867 FOREMAN RD, LOWELL, KENT, MI | 42.94391667, -85.39891667 | 256.000 m | TANK | 41.000 m structure / 47.000 m overall | N |
| 3 | T | 301 E MAIN ST, LOWELL, KENT, MI | 42.93641667, -85.33363889 | 198.000 m | TOWER | 18.000 m structure / 21.000 m overall | N |
| 4 | T | | | | | | |
| 5 | T | 156 E DIVISION STREET, SPARTA, KENT, MI | 43.16169444, -85.71169444 | 228.000 m | TANK | 34.000 m structure / 40.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 43.000 m | | | | 47.000 | |
| 1 | 2 | T | | 47.000 m | | | | 64.000 | |
| 1 | 3 | T | | 18.000 m | | | | -27.000 | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | | | 40.000 m | | | | 21.800 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 7 S MONROE, ROCKFORD, MI | KENT | 6168660724 |
License history
| Date | File or call sign | Action |
|---|
| 2022-02-05 | WPJX428 | LIEXP |
| 2021-09-06 | WPJX428 | LETRES |
| 2011-11-29 | WPJX428 | LIREN |
| 2011-11-23 | WPJX428 | ESURNW |
| 2011-11-03 | WPJX428 | ESURNW |
| 2011-10-04 | WPJX428 | ESURNW |
| 2011-09-12 | WPJX428 | LETRES |
| 2011-09-04 | WPJX428 | ESURNW |
| 2005-02-25 | WPJX428 | LIAUA |
| 2005-02-24 | WPJX428 | ESCAPR |
| 2003-08-01 | WPJX428 | LETCNS |
| 2002-10-03 | WPJX428 | LIMOD |
| 2002-05-06 | WPJX428 | AUDOPR |
| 2001-12-07 | WPJX428 | LIREN |
| 2001-09-10 | WPJX428 | LETRES |
| 2000-10-20 | WPJX428 | LICCNV |
| 1996-12-03 | WPJX428 | AUTHPR |
| 1996-12-03 | WPJX428 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1240597 | 2026-08-02 01:24:09 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPJX428 | ULS 1240597 | 2026-08-02 01:24:09 |
| Status | E | ULS 1240597 | 2026-08-02 01:24:09 |
| Service | PW | ULS 1240597 | 2026-08-02 01:24:09 |
| Grant Date | 2011-11-29 | ULS 1240597 | 2026-08-02 01:24:09 |
| Expiration Date | 2021-12-03 | ULS 1240597 | 2026-08-02 01:24:09 |
| Cancellation Date | 2022-02-05 | ULS 1240597 | 2026-08-02 01:24:09 |