Universal Licensing System
WPRI857
Unkles, David
License details
| ULS identifier | 1831301 |
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| Call sign | WPRI857 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-08-19 |
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| Expiration | 2035-10-05 |
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| Frequency range | 484.4625 - 487.4625 MHz (2 frequencies) |
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| Locations | 4 |
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| Representative location | WALTHAM(SECONDARY), MIDDLESEX, MA |
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| Coordinates | 42.3889722, -71.2531111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-23 05:47:26 |
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Licensee
| Name | Unkles, David |
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| Applicant type | I |
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| FRN | 0003468568 |
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| Location | DERRY, NH |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 484.46250000 | | | 75.000000 | 150.000000 | |
| 2 | 1 | FB6 | 484.46250000 | | | 75.000000 | 150.000000 | |
| 3 | 1 | FB6 | 484.46250000 | | | 75.000000 | 150.000000 | |
| 4 | 1 | MO | 487.46250000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 484.46250000 | | 20K0F3E |
| 2 | 1 | 484.46250000 | | 20K0F3E |
| 3 | 1 | 484.46250000 | | 20K0F3E |
| 4 | 1 | 487.46250000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | PROSPECT HILL, WALTHAM(SECONDARY), MIDDLESEX, MA | 42.38897222, -71.25311111 | 122.000 m | TOWER | 102.000 m structure / 102.000 m overall | N |
| 2 | T | OFF RT 6, BOURNE, BARNSTABLE, MA | 41.75705556, -70.57919444 | 57.000 m | TOWER | 36.000 m structure / 36.000 m overall | N |
| 3 | T | 600 OF ROUTE 107, KENSINGTON(SECOND), ROCKINGHAM, NH | 42.90897222, -70.95311111 | 70.000 m | TOWER | 60.000 m structure / 60.000 m overall | N |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 102.000 m | | | | 180.000 | |
| 1 | 2 | T | | 36.000 m | | | | 77.000 | |
| 1 | 3 | T | | 60.000 m | | | | 101.000 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 9 REBEL ROAD, HUDSON, NH | HILLSBOROUGH | 6038893500 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-19 | WPRI857 | LIREN |
| 2025-07-14 | WPRI857 | LETRES |
| 2015-07-21 | WPRI857 | LIREN |
| 2015-07-13 | WPRI857 | LETRES |
| 2009-09-15 | WPRI857 | LIASS |
| 2009-09-10 | WPRI857 | LTSAPR |
| 2005-10-03 | WPRI857 | LTSAPR |
| 2005-10-01 | WPRI857 | LIREN |
| 2005-07-11 | WPRI857 | LETRES |
| 2001-11-05 | WPRI857 | AUDOPR |
| 2000-11-23 | WPRI857 | LICCNV |
| 2000-10-05 | WPRI857 | LIISS |
| 2000-10-05 | WPRI857 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1831301 | 2026-08-23 05:47:26 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPRI857 | ULS 1831301 | 2026-08-23 05:47:26 |
| Status | A | ULS 1831301 | 2026-08-23 05:47:26 |
| Service | IG | ULS 1831301 | 2026-08-23 05:47:26 |
| Grant Date | 2025-08-19 | ULS 1831301 | 2026-08-23 05:47:26 |
| Expiration Date | 2035-10-05 | ULS 1831301 | 2026-08-23 05:47:26 |