Universal Licensing System
WPRT639
BACKLINK IV, LLC
License details
| ULS identifier | 1940713 |
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| Call sign | WPRT639 |
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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 | 17800 - 18120 MHz (4 frequencies) |
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| Locations | 1 |
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| Coordinates | 33.4118889, -111.8692222 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:22 |
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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 |
|---|
| 1 | 1 | FXO | 17800.00000000 | | | | | |
| 1 | 4 | FXO | 18000.00000000 | | | | | |
| 1 | 3 | FXO | 18080.00000000 | | | | | |
| 1 | 2 | FXO | 18120.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 17800.00000000 | | 40M0F7W |
| 1 | 4 | 18000.00000000 | | 40M0F7W |
| 1 | 3 | 18080.00000000 | | 40M0F7W |
| 1 | 2 | 18120.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 777 W Southern Ave, Mesa, MARICOPA, AZ | 33.39263889, -111.85633333 | 370.000 m | BPOLE | 71.300 m structure / 75.900 m overall | N |
| 2 | R | | 33.35888889, -111.78841667 | 376.100 m | | | |
| 3 | R | | 33.41436111, -111.87127778 | 370.900 m | | | |
| 4 | R | | 33.39241667, -111.84772222 | 368.800 m | | | |
| 5 | R | | 33.41188889, -111.86922222 | 369.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 120.6000 | | |
| 1 | 2 | R | Radio Waves Inc. HP2-18 | | | 38.6000 | | | |
| 1 | 3 | R | Radio Waves Inc. HP2-18 | | | 38.6000 | | | |
| 1 | 4 | R | Radio Waves Inc. HP2-18 | | | 38.6000 | | | |
| 1 | 5 | R | Radio Waves Inc. HP2-18 | | | 38.6000 | | | |
| 2 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 330.0000 | | |
| 3 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 91.8000 | | |
| 4 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 330.7000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-27 | WPRT639 | LICAN |
| 2002-06-25 | WPRT639 | LIASS |
| 2002-04-22 | WPRT639 | LETCNS |
| 2001-09-07 | WPRT639 | LIASS |
| 2001-09-06 | WPRT639 | LITRAN |
| 2001-06-06 | WPRT639 | LIMOD |
| 2001-04-04 | WPRT639 | LIMOD |
| 2001-01-24 | WPRT639 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1940713 | 2026-08-02 02:46:22 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPRT639 | ULS 1940713 | 2026-08-02 02:46:22 |
| Status | C | ULS 1940713 | 2026-08-02 02:46:22 |
| Service | CF | ULS 1940713 | 2026-08-02 02:46:22 |
| Grant Date | 2001-01-24 | ULS 1940713 | 2026-08-02 02:46:22 |
| Expiration Date | 2011-01-24 | ULS 1940713 | 2026-08-02 02:46:22 |
| Cancellation Date | 2002-06-26 | ULS 1940713 | 2026-08-02 02:46:22 |