Universal Licensing System
WPQX474
BACKLINK IV, LLC
License details
| ULS identifier | 1305245 |
|---|
| Call sign | WPQX474 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2000-11-06 |
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| Expiration | 2010-11-06 |
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| Cancellation | 2002-06-26 |
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| Frequency range | 17800 - 21775 MHz (7 frequencies) |
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| Locations | 2 |
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| Coordinates | 34.0630000, -118.3758333 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-09 15:43:34 |
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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 | 6 | FXO | 17800.00000000 | | | | | |
| 1 | 5 | FXO | 17880.00000000 | | | | | |
| 1 | 4 | FXO | 17960.00000000 | | | | | |
| 1 | 1 | FXO | 18000.00000000 | | | | | |
| 1 | 2 | FXO | 18080.00000000 | | | | | |
| 1 | 3 | FXO | 18120.00000000 | | | | | |
| 1 | 7 | FXO | 21775.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 6 | 17800.00000000 | | 40M0F7W |
| 1 | 5 | 17880.00000000 | | 40M0F7W |
| 1 | 4 | 17960.00000000 | | 40M0F7W |
| 1 | 1 | 18000.00000000 | | 40M0F7W |
| 1 | 2 | 18080.00000000 | | 40M0F7W |
| 1 | 3 | 18120.00000000 | | 40M0F7W |
| 1 | 7 | 21775.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9701 WILSHIRE BLVD, BEVERVLY HILLS, LOS ANGELES, CA | 34.06733333, -118.40661111 | 77.700 m | BPOLE | 54.900 m structure / 55.800 m overall | N |
| 2 | R | | 34.07425000, -118.39450000 | 66.800 m | | | |
| 3 | R | | 34.06633333, -118.40863889 | 79.900 m | | | |
| 4 | R | | 34.06052778, -118.39875000 | 61.000 m | | | |
| 5 | R | | 34.05558333, -118.39525000 | 57.000 m | | | |
| 6 | R | | 34.07286111, -118.36161111 | 53.900 m | | | |
| 7 | R | | 34.06300000, -118.37583333 | 39.900 m | | | |
| 8 | R | | 34.06186111, -118.41430556 | 81.100 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 | 55.5000 | | |
| 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 | | | 38.6000 | | | |
| 1 | 8 | R | Radio Waves Inc. HPLP1.5-23 | | | 37.2000 | | | |
| 2 | 1 | T | RADIO WAVES INC HP2-18 | | H | 39.0000 | 239.4000 | | |
| 3 | 1 | T | RADIO WAVES INC HP2-18 | | H | 39.0000 | 136.1000 | | |
| 4 | 1 | T | RADIO WAVES INC HP2-18 | | V | 39.0000 | 141.2000 | | |
| 5 | 1 | T | Radio Waves Inc. HP2-18 | | V | 39.0000 | 81.6000 | | |
| 6 | 1 | T | Radio Waves Inc. HP2-18 | | V | 38.6000 | 99.6000 | | |
| 7 | 1 | T | Radio Waves Inc. HPLP1.5-23 | | V | 37.2000 | 229.5000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-27 | WPQX474 | LICAN |
| 2002-06-25 | WPQX474 | LETCNS |
| 2002-06-25 | WPQX474 | LIASS |
| 2001-09-07 | WPQX474 | LIASS |
| 2001-09-06 | WPQX474 | LITRAN |
| 2001-03-23 | WPQX474 | LIMOD |
| 2000-11-06 | WPQX474 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1305245 | 2026-08-09 15:43:34 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPQX474 | ULS 1305245 | 2026-08-09 15:43:34 |
| Status | C | ULS 1305245 | 2026-08-09 15:43:34 |
| Service | CF | ULS 1305245 | 2026-08-09 15:43:34 |
| Grant Date | 2000-11-06 | ULS 1305245 | 2026-08-09 15:43:34 |
| Expiration Date | 2010-11-06 | ULS 1305245 | 2026-08-09 15:43:34 |
| Cancellation Date | 2002-06-26 | ULS 1305245 | 2026-08-09 15:43:34 |