Universal Licensing System
KMB591
CONTRA COSTA, COUNTY OF
License details
| ULS identifier | 1181171 |
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| Call sign | KMB591 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2025-02-04 |
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| Expiration | 2035-05-02 |
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| Frequency range | 46.06 - 46.42 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | EL SOBRANTE, CONTRA COSTA, CA |
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| Coordinates | 37.9724167, -122.2866389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:08:36 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 46.06000000 | | | 150.000000 | | |
| 1 | 1 | FB | 46.10000000 | | | 150.000000 | | |
| 1 | 1 | FB | 46.38000000 | | | 150.000000 | | |
| 1 | 1 | FB | 46.42000000 | | | 150.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 46.06000000 | | 20K0F3E |
| 1 | 1 | 46.10000000 | | 20K0F3E |
| 1 | 1 | 46.38000000 | | 20K0F3E |
| 1 | 1 | 46.42000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4640 APPIANWAY, EL SOBRANTE, CONTRA COSTA, CA | 37.97241667, -122.28663889 | 37.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 21.000 m | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 30 DOUGLAS DRIVE, MARTINEZ, CA | CONTRA COSTA | 9256465900 |
License history
| Date | File or call sign | Action |
|---|
| 2025-02-04 | KMB591 | LIREN |
| 2025-02-03 | KMB591 | LETRES |
| 2020-07-18 | KMB591 | LIAUA |
| 2020-05-05 | KMB591 | LIAUA |
| 2015-02-03 | KMB591 | LIREN |
| 2015-02-01 | KMB591 | ESURNW |
| 2012-06-14 | KMB591 | LIAUA |
| 2012-06-14 | KMB591 | ESUAPR |
| 2010-06-22 | KMB591 | LIAUA |
| 2010-06-22 | KMB591 | LTSAPR |
| 2010-06-21 | KMB591 | EFCAPR |
| 2010-06-21 | KMB591 | ESCAPR |
| 2005-02-03 | KMB591 | LIREN |
| 2005-02-02 | KMB591 | ESCAPR |
| 2004-09-29 | KMB591 | LIAUA |
| 2004-09-28 | KMB591 | ESUAPR |
| 2002-02-19 | KMB591 | AUDOPR |
| 2000-12-20 | KMB591 | LIAUA |
| 2000-10-19 | KMB591 | LICCNV |
| 2000-03-07 | KMB591 | AUTHPR |
| 2000-03-07 | KMB591 | LIREN |
| 2000-01-28 | KMB591 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1181171 | 2026-08-02 01:08:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KMB591 | ULS 1181171 | 2026-08-02 01:08:36 |
| Status | A | ULS 1181171 | 2026-08-02 01:08:36 |
| Service | PW | ULS 1181171 | 2026-08-02 01:08:36 |
| Grant Date | 2025-02-04 | ULS 1181171 | 2026-08-02 01:08:36 |
| Expiration Date | 2035-05-02 | ULS 1181171 | 2026-08-02 01:08:36 |