Universal Licensing System
WPOL457
BACKLINK I, LLC
License details
| ULS identifier | 1068250 |
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| Call sign | WPOL457 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1999-12-03 |
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| Expiration | 2009-12-03 |
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| Cancellation | 2002-06-24 |
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| Frequency range | 17840 - 22625 MHz (4 frequencies) |
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| Locations | 3 |
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| Representative location | Hinsdale, DUPAGE, IL |
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| Coordinates | 41.8221667, -87.9195000 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:55 |
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Licensee
| Name | BACKLINK I, 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 | 4 | FXO | 17840.00000000 | | | | | |
| 1 | 3 | FXO | 18000.00000000 | | | | | |
| 1 | 1 | FXO | 18040.00000000 | | | | | |
| 1 | 2 | FXO | 22625.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 4 | 17840.00000000 | | 40M0F7W |
| 1 | 3 | 18000.00000000 | | 40M0F7W |
| 1 | 1 | 18040.00000000 | | 40M0F7W |
| 1 | 2 | 22625.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 21 Spinning Wheel Rd., Hinsdale, DUPAGE, IL | 41.82216667, -87.91950000 | 201.200 m | BPOLE | 51.500 m structure / 54.600 m overall | N |
| 2 | R | | 41.81555556, -87.92527778 | 201.200 m | | | |
| 3 | R | | 41.82072222, -87.91911111 | 201.200 m | | | |
| 4 | R | | 41.81747222, -87.92702778 | 198.100 m | | | |
| 5 | R | | 41.82094444, -87.92063889 | 198.100 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 | 39.0000 | 213.2000 | | |
| 1 | 2 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 1 | 3 | R | Radio Waves Inc. HPLP1.5-23 | | | 37.8000 | | | |
| 1 | 4 | R | RADIO WAVES INC HP2-18 | | | 39.0000 | | | |
| 1 | 5 | R | Radio Waves Inc. HP2-18 | | | 39.0000 | | | |
| 2 | 1 | T | Radio Waves Inc. HPLP1.5-23 | | V | 37.8000 | 168.6000 | | |
| 3 | 1 | T | RADIO WAVES INC HP2-18 | | V | 39.0000 | 230.2000 | | |
| 4 | 1 | T | Radio Waves Inc. HP2-18 | | V | 39.0000 | 214.9000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-25 | WPOL457 | LICAN |
| 2002-06-21 | WPOL457 | LIASS |
| 2001-09-07 | WPOL457 | LIASS |
| 2001-09-06 | WPOL457 | LITRAN |
| 2000-12-11 | WPOL457 | LIMOD |
| 2000-09-14 | WPOL457 | LIMOD |
| 2000-05-19 | WPOL457 | LITRAN |
| 1999-12-03 | WPOL457 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1068250 | 2026-08-02 02:47:55 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPOL457 | ULS 1068250 | 2026-08-02 02:47:55 |
| Status | C | ULS 1068250 | 2026-08-02 02:47:55 |
| Service | CF | ULS 1068250 | 2026-08-02 02:47:55 |
| Grant Date | 1999-12-03 | ULS 1068250 | 2026-08-02 02:47:55 |
| Expiration Date | 2009-12-03 | ULS 1068250 | 2026-08-02 02:47:55 |
| Cancellation Date | 2002-06-24 | ULS 1068250 | 2026-08-02 02:47:55 |