Universal Licensing System
WPNU904
Comsec Associates, Inc.
License details
| ULS identifier | 1807159 |
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| Call sign | WPNU904 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1999-06-29 |
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| Expiration | 2004-06-29 |
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| Cancellation | 2004-08-29 |
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| Frequency range | 451.475 - 456.475 MHz (2 frequencies) |
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| Locations | 4 |
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| Representative location | GLENDALE, LOS ANGELES, CA |
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| Coordinates | 34.1875000, -118.2556389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:22 |
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Licensee
| Name | Comsec Associates, Inc. |
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| Applicant type | C |
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| FRN | 0001531664 |
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| Location | La Canada, CA |
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| Address | La Canada, CA, 910120708 |
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| Phone | 8185020000 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 451.47500000 | | | 65.000000 | 64.000000 | |
| 3 | 1 | MO | 451.47500000 | | | 110.000000 | | |
| 4 | 1 | FB6T | 451.47500000 | | | 110.000000 | | |
| 2 | 1 | FX1 | 456.47500000 | | | 110.000000 | | |
| 3 | 1 | MO | 456.47500000 | | | 110.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.47500000 | | 20K0F9W |
| 3 | 1 | 451.47500000 | | 20K0F9W |
| 4 | 1 | 451.47500000 | | 20K0F9W |
| 2 | 1 | 456.47500000 | | 20K0F9W |
| 3 | 1 | 456.47500000 | | 20K0F9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MT THOM RADIO SITE, GLENDALE, LOS ANGELES, CA | 34.18750000, -118.25563889 | 749.000 m | TOWER | 9.000 m structure / 12.000 m overall | N |
| 2 | T | CA | | | | | |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 12.000 m | | | | 348.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 270 N CANON DR, BEVERLY HILLS, CA | | 8185020000 |
License history
| Date | File or call sign | Action |
|---|
| 2004-08-29 | WPNU904 | LIEXP |
| 2004-04-05 | WPNU904 | LETRES |
| 2002-03-12 | WPNU904 | LIAUA |
| 2001-09-19 | WPNU904 | AUDOPR |
| 2000-11-23 | WPNU904 | LICCNV |
| 1999-06-29 | WPNU904 | LIISS |
| 1999-06-29 | WPNU904 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1807159 | 2026-08-02 01:16:22 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPNU904 | ULS 1807159 | 2026-08-02 01:16:22 |
| Status | E | ULS 1807159 | 2026-08-02 01:16:22 |
| Service | IG | ULS 1807159 | 2026-08-02 01:16:22 |
| Grant Date | 1999-06-29 | ULS 1807159 | 2026-08-02 01:16:22 |
| Expiration Date | 2004-06-29 | ULS 1807159 | 2026-08-02 01:16:22 |
| Cancellation Date | 2004-08-29 | ULS 1807159 | 2026-08-02 01:16:22 |