Universal Licensing System
WPPW940
HILLTOP AVIATION SERVICES INC
License details
| ULS identifier | 1821329 |
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| Call sign | WPPW940 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2005-02-09 |
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| Expiration | 2015-02-22 |
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| Cancellation | 2015-04-25 |
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| Frequency range | 451.725 - 457.1125 MHz (6 frequencies) |
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| Locations | 2 |
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| Representative location | OAKLAND, ALAMEDA, CA |
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| Coordinates | 37.7135278, -122.2141389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:25:50 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.72500000 | | | 110.000000 | 110.000000 | |
| 2 | 1 | MO | 451.72500000 | | | 4.000000 | | |
| 2 | 1 | MO | 452.08750000 | | | 2.000000 | | |
| 2 | 1 | MO | 452.11250000 | | | 2.000000 | | |
| 2 | 1 | MO | 456.72500000 | | | 4.000000 | | |
| 2 | 1 | MO | 457.08750000 | | | 2.000000 | | |
| 2 | 1 | MO | 457.11250000 | | | 2.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.72500000 | | 20K0F3E |
| 2 | 1 | 451.72500000 | | 20K0F3E |
| 2 | 1 | 452.08750000 | | 11K2F3E |
| 2 | 1 | 452.11250000 | | 11K2F3E |
| 2 | 1 | 456.72500000 | | 20K0F3E |
| 2 | 1 | 457.08750000 | | 11K2F3E |
| 2 | 1 | 457.11250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | OAKLAND ARPRT TERM 1, OAKLAND, ALAMEDA, CA | 37.71352778, -122.21413889 | 2.000 m | B | 9.000 m structure / 12.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 2.000 m | | | | -47.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 2 | 8517 Earhart Road Suite 180, Oakland, CA | ALAMEDA | 5105776710 |
License history
| Date | File or call sign | Action |
|---|
| 2015-04-25 | WPPW940 | LIEXP |
| 2014-12-01 | WPPW940 | LETRES |
| 2005-02-15 | WPPW940 | ESUAPR |
| 2005-02-09 | WPPW940 | LIREN |
| 2005-01-14 | WPPW940 | ESCAPR |
| 2004-12-13 | WPPW940 | ESCAPR |
| 2004-11-29 | WPPW940 | LETRES |
| 2004-10-21 | WPPW940 | LTSFRN |
| 2001-10-18 | WPPW940 | AUDOPR |
| 2000-11-23 | WPPW940 | LICCNV |
| 2000-02-22 | WPPW940 | AUTHPR |
| 2000-02-22 | WPPW940 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1821329 | 2026-08-02 01:25:50 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPPW940 | ULS 1821329 | 2026-08-02 01:25:50 |
| Status | E | ULS 1821329 | 2026-08-02 01:25:50 |
| Service | IG | ULS 1821329 | 2026-08-02 01:25:50 |
| Grant Date | 2005-02-09 | ULS 1821329 | 2026-08-02 01:25:50 |
| Expiration Date | 2015-02-22 | ULS 1821329 | 2026-08-02 01:25:50 |
| Cancellation Date | 2015-04-25 | ULS 1821329 | 2026-08-02 01:25:50 |