Universal Licensing System
WPPC851
HILLTOP AVIATION SERVICES INC
License details
| ULS identifier | 1816409 |
|---|
| Call sign | WPPC851 |
|---|
| Radio service | IG |
|---|
| Status | E |
|---|
| Grant date | 2004-10-28 |
|---|
| Expiration | 2014-10-26 |
|---|
| Cancellation | 2014-12-27 |
|---|
| Frequency range | 451.725 - 457.1125 MHz (6 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | OAKLAND, ALAMEDA, CA |
|---|
| Coordinates | 37.7135278, -122.2141389 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:25:49 |
|---|
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 | |
| 3 | 1 | MO | 451.72500000 | | | 4.000000 | | |
| 2 | 1 | MO | 452.08750000 | | | 2.000000 | | |
| 2 | 1 | MO | 452.11250000 | | | 2.000000 | | |
| 3 | 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 |
| 3 | 1 | 451.72500000 | | 20K0F3E |
| 2 | 1 | 452.08750000 | | 11K2F3E |
| 2 | 1 | 452.11250000 | | 11K2F3E |
| 3 | 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 AIRPORT, TERM 1, OAKLAND, ALAMEDA, CA | 37.71352778, -122.21413889 | 2.000 m | B | 9.000 m structure / 12.000 m overall | N |
| 2 | T | ALAMEDA, CA | 37.71352778, -122.21413889 | | | | |
| 3 | 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 | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 8751 Earhart RD suite 180, Oakland, CA | ALAMEDA | 5105776710 |
License history
| Date | File or call sign | Action |
|---|
| 2014-12-27 | WPPC851 | LIEXP |
| 2014-08-04 | WPPC851 | LETRES |
| 2004-10-28 | WPPC851 | LIREN |
| 2004-10-21 | WPPC851 | LTSFRN |
| 2004-10-20 | WPPC851 | ESCAPR |
| 2004-08-02 | WPPC851 | LETRES |
| 2001-10-18 | WPPC851 | AUDOPR |
| 2000-11-23 | WPPC851 | LICCNV |
| 1999-10-26 | WPPC851 | LIISS |
| 1999-10-26 | WPPC851 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1816409 | 2026-08-02 01:25:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPPC851 | ULS 1816409 | 2026-08-02 01:25:49 |
| Status | E | ULS 1816409 | 2026-08-02 01:25:49 |
| Service | IG | ULS 1816409 | 2026-08-02 01:25:49 |
| Grant Date | 2004-10-28 | ULS 1816409 | 2026-08-02 01:25:49 |
| Expiration Date | 2014-10-26 | ULS 1816409 | 2026-08-02 01:25:49 |
| Cancellation Date | 2014-12-27 | ULS 1816409 | 2026-08-02 01:25:49 |