Universal Licensing System
WPRT640
BACKLINK IV, LLC
License details
| ULS identifier | 1940714 |
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| Call sign | WPRT640 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2001-01-24 |
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| Expiration | 2011-01-24 |
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| Cancellation | 2002-06-26 |
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| Frequency range | 17920 MHz |
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| Locations | 2 |
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| Representative location | Quincy, NORFOLK, MA |
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| Coordinates | 42.2340000, -71.0144167 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:30 |
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Licensee
| Name | BACKLINK IV, LLC |
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| Applicant type | L |
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| Location | Herndon, VA |
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| Address | 460 Herndon Parkway, Suite 100, Herndon, VA, 20170 |
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| Phone | 7033264650 |
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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 | FXO | 17920.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 17920.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 100 Congress St., Quincy, NORFOLK, MA | 42.23400000, -71.01441667 | 14.600 m | BPOLE | 15.200 m structure / 18.300 m overall | |
| 2 | R | | 42.24694444, -71.04833333 | 58.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 297.2000 | | |
| 1 | 2 | R | Radio Waves Inc. HP2-18 | | | 38.6000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-27 | WPRT640 | LICAN |
| 2002-06-25 | WPRT640 | LIASS |
| 2002-04-22 | WPRT640 | LETCNS |
| 2001-09-07 | WPRT640 | LIASS |
| 2001-09-06 | WPRT640 | LITRAN |
| 2001-01-24 | WPRT640 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1940714 | 2026-08-02 02:46:30 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPRT640 | ULS 1940714 | 2026-08-02 02:46:30 |
| Status | C | ULS 1940714 | 2026-08-02 02:46:30 |
| Service | CF | ULS 1940714 | 2026-08-02 02:46:30 |
| Grant Date | 2001-01-24 | ULS 1940714 | 2026-08-02 02:46:30 |
| Expiration Date | 2011-01-24 | ULS 1940714 | 2026-08-02 02:46:30 |
| Cancellation Date | 2002-06-26 | ULS 1940714 | 2026-08-02 02:46:30 |