Universal Licensing System
WPRT488
BACKLINK IV, LLC
License details
| ULS identifier | 1940439 |
|---|
| Call sign | WPRT488 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2001-01-23 |
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| Expiration | 2011-01-23 |
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| Cancellation | 2002-06-26 |
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| Frequency range | 17760 - 18080 MHz (9 frequencies) |
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| Locations | 10 |
|---|
| Representative location | Pleasanton, ALAMEDA, CA |
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| Coordinates | 37.6900556, -121.9303333 |
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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 |
|---|
| 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 | 17760.00000000 | | | | | |
| 1 | 8 | FXO | 17800.00000000 | | | | | |
| 1 | 2 | FXO | 17840.00000000 | | | | | |
| 1 | 4 | FXO | 17880.00000000 | | | | | |
| 1 | 6 | FXO | 17920.00000000 | | | | | |
| 1 | 5 | FXO | 17960.00000000 | | | | | |
| 1 | 7 | FXO | 18000.00000000 | | | | | |
| 1 | 3 | FXO | 18040.00000000 | | | | | |
| 1 | 9 | FXO | 18080.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 17760.00000000 | | 40M0F7W |
| 1 | 8 | 17800.00000000 | | 40M0F7W |
| 1 | 2 | 17840.00000000 | | 40M0F7W |
| 1 | 4 | 17880.00000000 | | 40M0F7W |
| 1 | 6 | 17920.00000000 | | 40M0F7W |
| 1 | 5 | 17960.00000000 | | 40M0F7W |
| 1 | 7 | 18000.00000000 | | 40M0F7W |
| 1 | 3 | 18040.00000000 | | 40M0F7W |
| 1 | 9 | 18080.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 7901 Stoneridge Dr, Pleasanton, ALAMEDA, CA | 37.69005556, -121.93033333 | 114.000 m | BPOLE | 24.400 m structure / 25.600 m overall | |
| 2 | R | | 37.68405556, -121.90266667 | 100.000 m | | | |
| 3 | R | | 37.68319444, -121.90222222 | 100.000 m | | | |
| 4 | R | | 37.69180556, -121.93047222 | 110.000 m | | | |
| 5 | R | | 37.69158333, -121.93119444 | 110.900 m | | | |
| 6 | R | | 37.69230556, -121.93119444 | 110.900 m | | | |
| 7 | R | | 37.69866667, -121.92869444 | 107.000 m | | | |
| 8 | R | | 37.69769444, -121.92313889 | 100.900 m | | | |
| 9 | R | | 37.69775000, -121.92566667 | 103.000 m | | | |
| 10 | R | | 37.69766667, -121.92463889 | 103.900 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 | 39.0000 | 105.3000 | | |
| 1 | 2 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 3 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 4 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 5 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 6 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 7 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 8 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 9 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 10 | R | Radio Waves Inc. HP2-18 | | | 38.6000 | | | |
| 2 | 1 | T | Radio Waves Inc. HP2-18 | | H | 39.0000 | 107.1000 | | |
| 3 | 1 | T | Radio Waves Inc. HP2-18 | | H | 39.0000 | 356.4000 | | |
| 4 | 1 | T | Radio Waves Inc. HP2-18 | | H | 39.0000 | 335.9000 | | |
| 5 | 1 | T | Radio Waves Inc. HP2-18 | | V | 39.0000 | 343.1000 | | |
| 6 | 1 | T | Radio Waves Inc. HP2-18 | | H | 39.0000 | 8.6000 | | |
| 7 | 1 | T | Radio Waves Inc. HP2-18 | | V | 39.0000 | 36.8000 | | |
| 8 | 1 | T | Radio Waves Inc. HP2-18 | | V | 39.0000 | 25.7000 | | |
| 9 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 30.7000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-27 | WPRT488 | LICAN |
| 2002-06-25 | WPRT488 | LIASS |
| 2002-04-22 | WPRT488 | LETCNS |
| 2001-09-07 | WPRT488 | LIASS |
| 2001-09-06 | WPRT488 | LITRAN |
| 2001-01-23 | WPRT488 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1940439 | 2026-08-02 02:46:30 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPRT488 | ULS 1940439 | 2026-08-02 02:46:30 |
| Status | C | ULS 1940439 | 2026-08-02 02:46:30 |
| Service | CF | ULS 1940439 | 2026-08-02 02:46:30 |
| Grant Date | 2001-01-23 | ULS 1940439 | 2026-08-02 02:46:30 |
| Expiration Date | 2011-01-23 | ULS 1940439 | 2026-08-02 02:46:30 |
| Cancellation Date | 2002-06-26 | ULS 1940439 | 2026-08-02 02:46:30 |