Universal Licensing System
WPMJ751
Crystal SMR Inc
License details
| ULS identifier | 1795710 |
|---|
| Call sign | WPMJ751 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2023-08-25 |
|---|
| Expiration | 2033-08-14 |
|---|
| Frequency range | 451.775 - 456.775 MHz (2 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | NOVATO, MARIN, CA |
|---|
| Coordinates | 38.0590833, -122.6038611 |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 451.77500000 | | | 90.000000 | 40.000000 | |
| 2 | 1 | FX1 | 456.77500000 | | | 25.000000 | 60.000000 | |
| 3 | 1 | MO | 456.77500000 | | | 25.000000 | 60.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.77500000 | | 11K0F3E |
| 2 | 1 | 456.77500000 | | 11K0F3E |
| 3 | 1 | 456.77500000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | BIG ROCK RIDGE, NOVATO, MARIN, CA | 38.05908333, -122.60386111 | 575.000 m | POLE | 25.000 m structure / 25.000 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 | | 18.000 m | | | | 443.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 140 JOHNSON STREET, WINDSOR, CA | SONOMA | 7078377000 |
License history
| Date | File or call sign | Action |
|---|
| 2025-01-30 | WPMJ751 | LIASS |
| 2023-08-25 | WPMJ751 | LIREN |
| 2023-08-22 | WPMJ751 | LIMOD |
| 2013-12-19 | WPMJ751 | LIREN |
| 2013-09-04 | WPMJ751 | LTSAPR |
| 2013-05-20 | WPMJ751 | LETRES |
| 2013-01-01 | WPMJ751 | LIMOD |
| 2012-12-31 | WPMJ751 | LTSAPR |
| 2003-08-13 | WPMJ751 | LIREN |
| 2003-05-19 | WPMJ751 | LETRES |
| 2001-10-11 | WPMJ751 | AUDOPR |
| 2000-11-23 | WPMJ751 | LICCNV |
| 1998-08-14 | WPMJ751 | LIISS |
| 1998-08-14 | WPMJ751 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1795710 | 2026-08-02 01:14:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMJ751 | ULS 1795710 | 2026-08-02 01:14:20 |
| Status | A | ULS 1795710 | 2026-08-02 01:14:20 |
| Service | IG | ULS 1795710 | 2026-08-02 01:14:20 |
| Grant Date | 2023-08-25 | ULS 1795710 | 2026-08-02 01:14:20 |
| Expiration Date | 2033-08-14 | ULS 1795710 | 2026-08-02 01:14:20 |