Universal Licensing System
WPNZ938
Quick Messenger Service
License details
| ULS identifier | 1809964 |
|---|
| Call sign | WPNZ938 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-07-28 |
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| Expiration | 2014-08-17 |
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| Cancellation | 2014-10-18 |
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| Frequency range | 452.825 - 457.825 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | WASHINGTON, DC |
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| Coordinates | 38.9190000, -77.0444167 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:54 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 452.82500000 | | | 65.000000 | 260.000000 | |
| 3 | 1 | MO | 452.82500000 | | | 5.000000 | | |
| 2 | 1 | FX1 | 457.82500000 | | | 40.000000 | 80.000000 | |
| 3 | 1 | MO | 457.82500000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.82500000 | | 20K0F3E |
| 3 | 1 | 452.82500000 | | 20K0F3E |
| 2 | 1 | 457.82500000 | | 20K0F3E |
| 3 | 1 | 457.82500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1884 COLUMBIA RD NW, WASHINGTON, DC | 38.91900000, -77.04441667 | 51.000 m | B | 34.000 m structure / 37.000 m overall | N |
| 2 | T | DC | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 37.000 m | | | | 32.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 4829 Fairmont Avenue - Suite 200, Bethesda, MD | MONTGOMERY | 2402232233 |
License history
| Date | File or call sign | Action |
|---|
| 2014-10-18 | WPNZ938 | LIEXP |
| 2014-05-26 | WPNZ938 | LETRES |
| 2008-08-12 | WPNZ938 | LIAUA |
| 2008-08-11 | WPNZ938 | ESCAPR |
| 2004-07-29 | WPNZ938 | LTSFRN |
| 2004-07-28 | WPNZ938 | ESCAPR |
| 2004-05-24 | WPNZ938 | LETRES |
| 2001-10-22 | WPNZ938 | AUDOPR |
| 2000-11-23 | WPNZ938 | LICCNV |
| 1999-08-17 | WPNZ938 | LIISS |
| 1999-08-17 | WPNZ938 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1809964 | 2026-08-02 01:16:54 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPNZ938 | ULS 1809964 | 2026-08-02 01:16:54 |
| Status | E | ULS 1809964 | 2026-08-02 01:16:54 |
| Service | IG | ULS 1809964 | 2026-08-02 01:16:54 |
| Grant Date | 2004-07-28 | ULS 1809964 | 2026-08-02 01:16:54 |
| Expiration Date | 2014-08-17 | ULS 1809964 | 2026-08-02 01:16:54 |
| Cancellation Date | 2014-10-18 | ULS 1809964 | 2026-08-02 01:16:54 |