Universal Licensing System
WPMX552
GREENHORNE & OMARA INC
License details
| ULS identifier | 1802726 |
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| Call sign | WPMX552 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1999-03-12 |
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| Expiration | 2004-03-12 |
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| Cancellation | 2004-05-16 |
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| Frequency range | 464.5 - 464.55 MHz (2 frequencies) |
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| Locations | 1 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:49 |
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Licensee
| Name | GREENHORNE & OMARA INC |
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| Applicant type | C |
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| Location | ROCKVILLE, MD |
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| Address | 15020 SHADY GROVE RD STE 400, ROCKVILLE, MD, 20850 |
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| Phone | 3017383890 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FBI | 464.50000000 | | | 35.000000 | | |
| 1 | 1 | FBI | 464.55000000 | | | 35.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.50000000 | | 20K0F1D |
| 1 | 1 | 464.55000000 | | 20K0F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 15020 SHADY GROVE RD STE 400, ROCKVILLE, MD | | 3017383890 |
License history
| Date | File or call sign | Action |
|---|
| 2004-05-16 | WPMX552 | LIEXP |
| 2003-12-15 | WPMX552 | LETRES |
| 2000-11-23 | WPMX552 | LICCNV |
| 1999-03-12 | WPMX552 | LIISS |
| 1999-03-12 | WPMX552 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1802726 | 2026-08-02 01:26:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMX552 | ULS 1802726 | 2026-08-02 01:26:49 |
| Status | E | ULS 1802726 | 2026-08-02 01:26:49 |
| Service | IG | ULS 1802726 | 2026-08-02 01:26:49 |
| Grant Date | 1999-03-12 | ULS 1802726 | 2026-08-02 01:26:49 |
| Expiration Date | 2004-03-12 | ULS 1802726 | 2026-08-02 01:26:49 |
| Cancellation Date | 2004-05-16 | ULS 1802726 | 2026-08-02 01:26:49 |