Universal Licensing System
WPQL604
BACKLINK I, LLC
License details
| ULS identifier | 1083622 |
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| Call sign | WPQL604 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 2000-05-18 |
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| Expiration | 2010-05-18 |
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| Cancellation | 2002-06-24 |
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| Frequency range | 21275 - 21675 MHz (5 frequencies) |
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| Locations | 4 |
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| Representative location | GAITHERSBURG, MONTGOMERY, MD |
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| Coordinates | 39.1499722, -77.2079722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:49 |
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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 | 2 | FXO | 21275.00000000 | | | | | |
| 1 | 3 | FXO | 21375.00000000 | | | | | |
| 1 | 5 | FXO | 21475.00000000 | | | | | |
| 1 | 4 | FXO | 21525.00000000 | | | | | |
| 1 | 1 | FXO | 21675.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 21275.00000000 | | 40M0F7W |
| 1 | 3 | 21375.00000000 | | 40M0F7W |
| 1 | 5 | 21475.00000000 | | 40M0F7W |
| 1 | 4 | 21525.00000000 | | 40M0F7W |
| 1 | 1 | 21675.00000000 | | 40M0F7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 481 N FREDERICK AVE, GAITHERSBURG, MONTGOMERY, MD | 39.14997222, -77.20797222 | 136.900 m | BPOLE | 23.500 m structure / 25.900 m overall | N |
| 2 | R | | 39.15038889, -77.20755556 | 136.900 m | | | |
| 3 | R | | 39.15072222, -77.20686111 | 137.200 m | | | |
| 4 | R | | 39.14347222, -77.21980556 | 122.500 m | | | |
| 5 | R | | 39.15713889, -77.20680556 | 121.900 m | | | |
| 6 | R | | 39.15461111, -77.21036111 | 130.800 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 | 37.2000 | 37.9000 | | |
| 1 | 2 | R | RADIO WAVES INC HPLP1.5-23 | | | 37.2000 | | | |
| 1 | 3 | R | RADIO WAVES INC HPLP1.5-23 | | | 37.2000 | | | |
| 1 | 4 | R | RADIO WAVES INC HPLP1.5-23 | | | 37.2000 | | | |
| 1 | 5 | R | RADIO WAVES INC HPLP1.5-23 | | | 37.2000 | | | |
| 1 | 6 | R | Radio Waves Inc. HPLP1.5-23 | | | 37.2000 | | | |
| 2 | 1 | T | RADIO WAVES INC HPLP1.5-23 | | V | 37.2000 | 49.1000 | | |
| 3 | 1 | T | RADIO WAVES INC HPLP1.5-23 | | V | 37.2000 | 234.8000 | | |
| 4 | 1 | T | RADIO WAVES INC HPLP1.5-23 | | V | 37.2000 | 7.2000 | | |
| 5 | 1 | T | Radio Waves Inc. HPLP1.5-23 | | V | 37.2000 | 338.2000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2002-06-25 | WPQL604 | LICAN |
| 2002-06-21 | WPQL604 | LIASS |
| 2002-06-10 | WPQL604 | LETCNS |
| 2001-09-07 | WPQL604 | LIASS |
| 2001-09-06 | WPQL604 | LITRAN |
| 2001-05-31 | WPQL604 | LIMOD |
| 2001-03-13 | WPQL604 | LIMOD |
| 2000-05-18 | WPQL604 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1083622 | 2026-08-02 02:47:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPQL604 | ULS 1083622 | 2026-08-02 02:47:49 |
| Status | C | ULS 1083622 | 2026-08-02 02:47:49 |
| Service | CF | ULS 1083622 | 2026-08-02 02:47:49 |
| Grant Date | 2000-05-18 | ULS 1083622 | 2026-08-02 02:47:49 |
| Expiration Date | 2010-05-18 | ULS 1083622 | 2026-08-02 02:47:49 |
| Cancellation Date | 2002-06-24 | ULS 1083622 | 2026-08-02 02:47:49 |