Universal Licensing System
WNSP492
DAY & ZIMMERMANN SERVICES
License details
| ULS identifier | 1674137 |
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| Call sign | WNSP492 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2000-05-08 |
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| Expiration | 2005-06-25 |
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| Cancellation | 2005-08-27 |
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| Frequency range | 461.05 - 466.05 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | RESTON, FAIRFAX, VA |
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| Coordinates | 38.9465000, -77.3605278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:28:18 |
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Licensee
| Name | DAY & ZIMMERMANN SERVICES |
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| Applicant type | C |
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| Location | RESTON, VA |
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| Address | 12201 SUNRISE VALLEY DR, RESTON, VA, 22090 |
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| Phone | 7036202487 |
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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 | 461.05000000 | | | 40.000000 | 50.000000 | |
| 2 | 1 | MO | 461.05000000 | | | 5.000000 | | |
| 2 | 1 | MO | 466.05000000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.05000000 | | 20K0F3E |
| 2 | 1 | 461.05000000 | | 20K0F3E |
| 2 | 1 | 466.05000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 12201 SUNRISE VALLEY DR, RESTON, FAIRFAX, VA | 38.94650000, -77.36052778 | 134.000 m | | 8.000 m structure / 8.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 12.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 12201 SUNRISE VALLEY DR, RESTON, VA | | 7036202487 |
License history
| Date | File or call sign | Action |
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| 2005-08-27 | WNSP492 | LIEXP |
| 2005-04-04 | WNSP492 | LETRES |
| 2002-01-16 | WNSP492 | AUDOPR |
| 2000-11-23 | WNSP492 | LICCNV |
| 2000-05-08 | WNSP492 | AUTHPR |
| 2000-05-08 | WNSP492 | LIREN |
| 2000-03-27 | WNSP492 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1674137 | 2026-08-02 01:28:18 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNSP492 | ULS 1674137 | 2026-08-02 01:28:18 |
| Status | E | ULS 1674137 | 2026-08-02 01:28:18 |
| Service | IG | ULS 1674137 | 2026-08-02 01:28:18 |
| Grant Date | 2000-05-08 | ULS 1674137 | 2026-08-02 01:28:18 |
| Expiration Date | 2005-06-25 | ULS 1674137 | 2026-08-02 01:28:18 |
| Cancellation Date | 2005-08-27 | ULS 1674137 | 2026-08-02 01:28:18 |