Universal Licensing System
KNAF249
MIDDLESEX SHERIFF'S OFFICE
License details
| ULS identifier | 1252703 |
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| Call sign | KNAF249 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2020-11-23 |
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| Expiration | 2031-01-29 |
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| Frequency range | 45.94 MHz |
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| Locations | 2 |
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| Representative location | BILLERICA, MIDDLESEX, MA |
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| Coordinates | 42.5553611, -71.3025556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:12:18 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 45.94000000 | | | 100.000000 | 100.000000 | |
| 2 | 1 | FB | 45.94000000 | | | 100.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 45.94000000 | | 20K0F3E |
| 2 | 1 | 45.94000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MIDDLESEX, MA | | | | | |
| 2 | T | TREBLE COVE RD HOUSE OF CORRECTION, BILLERICA, MIDDLESEX, MA | 42.55536111, -71.30255556 | 76.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 30.000 m | | | | | |
Control points
| Number | Address | County | Phone |
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| 2 | 269 Treble Cove Raod, Billerica, MA | MIDDLESEX | 9789323378 |
License history
| Date | File or call sign | Action |
|---|
| 2020-11-23 | KNAF249 | LIREN |
| 2020-11-02 | KNAF249 | LETRES |
| 2010-12-07 | KNAF249 | LIREN |
| 2010-12-06 | KNAF249 | ESUAPR |
| 2010-11-30 | KNAF249 | ESURNW |
| 2010-11-08 | KNAF249 | LETRES |
| 2010-10-31 | KNAF249 | ESURNW |
| 2006-10-19 | KNAF249 | LIAUA |
| 2006-10-18 | KNAF249 | ESCAPR |
| 2002-03-21 | KNAF249 | AUDOPR |
| 2001-02-10 | KNAF249 | LIREN |
| 2000-11-13 | KNAF249 | LETRES |
| 2000-10-20 | KNAF249 | LICCNV |
| 1995-12-15 | KNAF249 | AUTHPR |
| 1995-12-15 | KNAF249 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1252703 | 2026-08-02 01:12:18 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNAF249 | ULS 1252703 | 2026-08-02 01:12:18 |
| Status | A | ULS 1252703 | 2026-08-02 01:12:18 |
| Service | PW | ULS 1252703 | 2026-08-02 01:12:18 |
| Grant Date | 2020-11-23 | ULS 1252703 | 2026-08-02 01:12:18 |
| Expiration Date | 2031-01-29 | ULS 1252703 | 2026-08-02 01:12:18 |