Universal Licensing System
KNCV479
MADDEN DOOR & SONS INC `
License details
| ULS identifier | 1618205 |
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| Call sign | KNCV479 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1996-01-17 |
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| Expiration | 2001-01-22 |
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| Cancellation | 2001-03-25 |
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| Frequency range | 461.3 - 466.3 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | WALNUT CREEK, CONTRA COSTA, CA |
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| Coordinates | 37.8815833, -121.9191389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:27:45 |
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Licensee
| Name | MADDEN DOOR & SONS INC ` |
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| Applicant type | C |
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| Location | MARTINEZ, CA |
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| Address | 4300 ARTHUR RD, MARTINEZ, CA, 94553 |
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| Phone | 4159354580 |
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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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| 2 | 1 | FB4 | 461.30000000 | | | 50.000000 | 59.000000 | |
| 1 | 1 | FX1 | 466.30000000 | | | 16.000000 | | |
| 3 | 1 | MO | 466.30000000 | | | 30.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 461.30000000 | | 20K0F3E |
| 1 | 1 | 466.30000000 | | 20K0F3E |
| 3 | 1 | 466.30000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CA | | | | | |
| 2 | T | MOUNT DIABLO, WALNUT CREEK, CONTRA COSTA, CA | 37.88158333, -121.91913889 | 1091.000 m | | | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 51.000 m | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 4300 ARTHUR RD, MARTINEZ, CA | | 4159354580 |
License history
| Date | File or call sign | Action |
|---|
| 2001-03-25 | KNCV479 | LIEXP |
| 2000-11-23 | KNCV479 | LICCNV |
| 2000-10-24 | KNCV479 | LETRES |
| 1996-01-17 | KNCV479 | AUTHPR |
| 1996-01-17 | KNCV479 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1618205 | 2026-08-02 01:27:45 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNCV479 | ULS 1618205 | 2026-08-02 01:27:45 |
| Status | E | ULS 1618205 | 2026-08-02 01:27:45 |
| Service | IG | ULS 1618205 | 2026-08-02 01:27:45 |
| Grant Date | 1996-01-17 | ULS 1618205 | 2026-08-02 01:27:45 |
| Expiration Date | 2001-01-22 | ULS 1618205 | 2026-08-02 01:27:45 |
| Cancellation Date | 2001-03-25 | ULS 1618205 | 2026-08-02 01:27:45 |