Universal Licensing System
WPZK641
SAN FRANCISCO CONVENTION FACILITIES
License details
| ULS identifier | 2580973 |
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| Call sign | WPZK641 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-01-30 |
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| Expiration | 2014-01-30 |
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| Cancellation | 2014-04-05 |
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| Frequency range | 461.7 - 468.35 MHz (6 frequencies) |
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| Locations | 4 |
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| Representative location | SAN FRANCISCO, SAN FRANCISCO, CA |
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| Coordinates | 37.7868611, -122.3983056 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:25:27 |
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Licensee
| Name | SAN FRANCISCO CONVENTION FACILITIES |
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| Applicant type | C |
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| FRN | 0009714957 |
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| Location | SAN FRANCISCO, CA |
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| Address | 747 HOWARD ST, SAN FRANCISCO, CA, 941033118 |
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| Phone | 4159744000 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FB | 461.70000000 | | | 50.000000 | 350.000000 | |
| 3 | 1 | MO | 461.70000000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | FB2 | 461.97500000 | | | 50.000000 | 350.000000 | |
| 1 | 1 | FB | 461.97500000 | | | 50.000000 | 350.000000 | |
| 2 | 1 | FB | 461.97500000 | | | 50.000000 | 350.000000 | |
| 3 | 1 | MO | 461.97500000 | | | 5.000000 | 5.000000 | |
| 4 | 1 | MO | 461.97500000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | FB2 | 463.35000000 | | | 40.000000 | 65.000000 | |
| 3 | 1 | MO | 463.35000000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 466.70000000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 466.97500000 | | | 5.000000 | 5.000000 | |
| 4 | 1 | MO | 466.97500000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 468.35000000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 461.70000000 | | 20K0F3E |
| 3 | 1 | 461.70000000 | | 20K0F3E |
| 1 | 1 | 461.97500000 | | 20K0F3E |
| 1 | 1 | 461.97500000 | | 20K0F3E |
| 2 | 1 | 461.97500000 | | 20K0F3E |
| 3 | 1 | 461.97500000 | | 20K0F3E |
| 4 | 1 | 461.97500000 | | 20K0F3E |
| 1 | 1 | 463.35000000 | | 20K0F3E |
| 3 | 1 | 463.35000000 | | 20K0F3E |
| 3 | 1 | 466.70000000 | | 20K0F3E |
| 3 | 1 | 466.97500000 | | 20K0F3E |
| 4 | 1 | 466.97500000 | | 20K0F3E |
| 3 | 1 | 468.35000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 747 HOWARD ST, SAN FRANCISCO, SAN FRANCISCO, CA | 37.78686111, -122.39830556 | 9.000 m | B | 17.000 m structure / 17.000 m overall | |
| 2 | T | 99 GROVE STREET, SAN FRANCISCO, SAN FRANCISCO, CA | 37.77769444, -122.41775000 | 9.000 m | B | 17.000 m structure / 17.000 m overall | |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | -2.000 | |
| 1 | 2 | T | | 17.000 m | | | | -6.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 2 | 1 | T | | 17.000 m | | | | 4.000 | |
Control points
| Number | Address | County | Phone |
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| 1 | 747 HOWARD STREET, SAN FRANCISCO, CA | SAN FRANCISCO | 4159744000 |
License history
| Date | File or call sign | Action |
|---|
| 2014-04-05 | WPZK641 | LIEXP |
| 2013-11-04 | WPZK641 | LETRES |
| 2004-01-30 | WPZK641 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2580973 | 2026-08-02 01:25:27 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPZK641 | ULS 2580973 | 2026-08-02 01:25:27 |
| Status | E | ULS 2580973 | 2026-08-02 01:25:27 |
| Service | IG | ULS 2580973 | 2026-08-02 01:25:27 |
| Grant Date | 2004-01-30 | ULS 2580973 | 2026-08-02 01:25:27 |
| Expiration Date | 2014-01-30 | ULS 2580973 | 2026-08-02 01:25:27 |
| Cancellation Date | 2014-04-05 | ULS 2580973 | 2026-08-02 01:25:27 |