Universal Licensing System
WPQX951
BACKLINK IV, LLC
License details
| ULS identifier | 1306721 |
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| Call sign | WPQX951 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2000-11-17 |
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| Expiration | 2010-11-17 |
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| Cancellation | 2002-06-26 |
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| Frequency range | 21425 MHz |
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| Locations | 2 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8797500, -87.6359722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-09 15:43:17 |
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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 | 21425.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 21425.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 318 W ADAM ST., CHICAGO, COOK, IL | 41.87975000, -87.63597222 | 181.400 m | BPOLE | 69.500 m structure / 73.200 m overall | |
| 2 | R | | 41.88280556, -87.63308333 | 181.400 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RADIO WAVES INC. HPLP1.5-23 | | V | 37.8000 | 35.2000 | | |
| 1 | 2 | R | RADIO WAVES INC. HPLP1.5-23 | | | 37.8000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-27 | WPQX951 | LICAN |
| 2002-06-25 | WPQX951 | LIASS |
| 2001-09-07 | WPQX951 | LIASS |
| 2001-09-06 | WPQX951 | LITRAN |
| 2000-11-17 | WPQX951 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1306721 | 2026-08-09 15:43:17 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPQX951 | ULS 1306721 | 2026-08-09 15:43:17 |
| Status | C | ULS 1306721 | 2026-08-09 15:43:17 |
| Service | CF | ULS 1306721 | 2026-08-09 15:43:17 |
| Grant Date | 2000-11-17 | ULS 1306721 | 2026-08-09 15:43:17 |
| Expiration Date | 2010-11-17 | ULS 1306721 | 2026-08-09 15:43:17 |
| Cancellation Date | 2002-06-26 | ULS 1306721 | 2026-08-09 15:43:17 |