Universal Licensing System
WPMN677
SAPPER CONSTRUCTION CO
License details
| ULS identifier | 1873255 |
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| Call sign | WPMN677 |
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| Radio service | IG |
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| Status | T |
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| Grant date | 1998-10-09 |
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| Expiration | 2003-10-09 |
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| Cancellation | 2003-11-18 |
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| Frequency range | 452.075 - 457.075 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | SAN DIEGO, SAN DIEGO, CA |
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| Coordinates | 32.5950556, -116.8450278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:27:28 |
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Licensee
| Name | SAPPER CONSTRUCTION CO |
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| Applicant type | C |
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| Location | SPRING VALLEY, CA |
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| Address | SPRING VALLEY, CA, 91979 |
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| Phone | 6194657222 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB2 | 452.07500000 | | | 110.000000 | 450.000000 | |
| 2 | 1 | FX1 | 457.07500000 | | | 50.000000 | | |
| 3 | 1 | MO | 457.07500000 | | | 50.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.07500000 | | 20K0F3E |
| 2 | 1 | 457.07500000 | | 20K0F3E |
| 3 | 1 | 457.07500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MOUNT OTAY, SAN DIEGO, SAN DIEGO, CA | 32.59505556, -116.84502778 | 1086.000 m | TOWER | 30.000 m structure / 30.000 m overall | N |
| 2 | T | CA | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 9.000 m | | | | 765.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 9148 BIRCH ST, SPRING VALLEY, CA | | 6192803650 |
License history
| Date | File or call sign | Action |
|---|
| 2003-11-18 | WPMN677 | LITERM |
| 2003-07-14 | WPMN677 | LETRES |
| 2002-06-03 | WPMN677 | AUDCAN |
| 2000-11-24 | WPMN677 | LICCNV |
| 1998-10-09 | WPMN677 | AUTHPR |
| 1998-10-09 | WPMN677 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1873255 | 2026-08-02 01:27:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMN677 | ULS 1873255 | 2026-08-02 01:27:28 |
| Status | T | ULS 1873255 | 2026-08-02 01:27:28 |
| Service | IG | ULS 1873255 | 2026-08-02 01:27:28 |
| Grant Date | 1998-10-09 | ULS 1873255 | 2026-08-02 01:27:28 |
| Expiration Date | 2003-10-09 | ULS 1873255 | 2026-08-02 01:27:28 |
| Cancellation Date | 2003-11-18 | ULS 1873255 | 2026-08-02 01:27:28 |