Universal Licensing System
WNWZ687
Johns Hopkins University Applied Physics Laboratory LLC
License details
| ULS identifier | 1687145 |
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| Call sign | WNWZ687 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-10-26 |
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| Expiration | 2014-11-02 |
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| Cancellation | 2015-01-03 |
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| Frequency range | 461.65 - 466.65 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | SCAGGSVILLE, HOWARD, MD |
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| Coordinates | 39.1626111, -76.8994167 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:18 |
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Licensee
| Name | Johns Hopkins University Applied Physics Laboratory LLC |
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| Applicant type | C |
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| FRN | 0005564471 |
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| Location | Laurel, MD |
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| Address | 11100 Johns Hopkins Rd., Laurel, MD, 20723 |
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| Phone | 2402287233 |
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| Email | [email protected] |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB2 | 461.65000000 | | | 25.000000 | 20.000000 | |
| 2 | 1 | MO | 461.65000000 | | | 4.000000 | | |
| 2 | 1 | MO | 466.65000000 | | | 4.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.65000000 | | 20K0F3E |
| 2 | 1 | 461.65000000 | | 20K0F3E |
| 2 | 1 | 466.65000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 11100 JOHNS HOPKINS RD, SCAGGSVILLE, HOWARD, MD | 39.16261111, -76.89941667 | 129.000 m | B | 153.000 m structure / 153.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 158.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 11100 JOHNS HOPKINS RD, SCAGGSVILLE, MD | HOWARD | 2402287233 |
License history
| Date | File or call sign | Action |
|---|
| 2015-01-03 | WNWZ687 | LIEXP |
| 2014-08-11 | WNWZ687 | LETRES |
| 2009-06-02 | WNWZ687 | LIAUA |
| 2009-06-01 | WNWZ687 | ESCAPR |
| 2004-10-25 | WNWZ687 | ESCAPR |
| 2004-08-09 | WNWZ687 | LETRES |
| 2001-10-12 | WNWZ687 | AUDOPR |
| 2000-11-23 | WNWZ687 | LICCNV |
| 1999-10-29 | WNWZ687 | LIREN |
| 1999-10-29 | WNWZ687 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1687145 | 2026-08-02 01:14:18 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNWZ687 | ULS 1687145 | 2026-08-02 01:14:18 |
| Status | E | ULS 1687145 | 2026-08-02 01:14:18 |
| Service | IG | ULS 1687145 | 2026-08-02 01:14:18 |
| Grant Date | 2004-10-26 | ULS 1687145 | 2026-08-02 01:14:18 |
| Expiration Date | 2014-11-02 | ULS 1687145 | 2026-08-02 01:14:18 |
| Cancellation Date | 2015-01-03 | ULS 1687145 | 2026-08-02 01:14:18 |