Universal Licensing System
WPNN923
ALTAMONT INFRASTRUCTURE COMPANY LLC
License details
| ULS identifier | 1047051 |
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| Call sign | WPNN923 |
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| Radio service | MG |
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| Status | E |
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| Grant date | 1998-06-26 |
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| Expiration | 2008-06-26 |
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| Cancellation | 2008-08-30 |
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| Frequency range | 23425 - 23575 MHz (2 frequencies) |
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| Locations | 1 |
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| Coordinates | 37.7682500, -121.6966111 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:49 |
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Licensee
| Name | ALTAMONT INFRASTRUCTURE COMPANY LLC |
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| Applicant type | P |
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| Location | LIVERMORE, CA |
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| Address | 6592 PRESTON AVE, LIVERMORE, CA, 94550 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 23425.00000000 | | | | | |
| 1 | 2 | FXO | 23575.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 23425.00000000 | | 14M4F7D |
| 1 | 2 | 23575.00000000 | | 14M4F7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 7950 BRYANT HOT SPRING RD, BRYANT, ALAMEDA, CA | 37.79713889, -121.68161111 | 164.600 m | | 6.100 m structure / 5.800 m overall | |
| 2 | R | | 37.76825000, -121.69661111 | 365.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | 40.6000 | 202.4000 | | |
| 1 | 2 | R | | | | 40.6000 | | | |
| 2 | 1 | T | | | V | 40.6000 | 202.4000 | | |
| 2 | 2 | R | | | | 40.6000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2008-08-30 | WPNN923 | LIEXP |
| 2008-03-31 | WPNN923 | LETRES |
| 1999-08-14 | WPNN923 | LICCNV |
| 1998-06-26 | WPNN923 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1047051 | 2026-08-02 02:47:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPNN923 | ULS 1047051 | 2026-08-02 02:47:49 |
| Status | E | ULS 1047051 | 2026-08-02 02:47:49 |
| Service | MG | ULS 1047051 | 2026-08-02 02:47:49 |
| Grant Date | 1998-06-26 | ULS 1047051 | 2026-08-02 02:47:49 |
| Expiration Date | 2008-06-26 | ULS 1047051 | 2026-08-02 02:47:49 |
| Cancellation Date | 2008-08-30 | ULS 1047051 | 2026-08-02 02:47:49 |