Universal Licensing System
KNFX450
Londonderry School District
License details
| ULS identifier | 1213250 |
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| Call sign | KNFX450 |
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| Radio service | PW |
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| Status | E |
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| Grant date | 2002-10-08 |
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| Expiration | 2012-12-29 |
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| Cancellation | 2013-03-02 |
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| Frequency range | 453.5 MHz |
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| Locations | 2 |
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| Representative location | LONDONBERRY, ROCKINGHAM, NH |
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| Coordinates | 42.8511944, -71.3547778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:15:51 |
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Licensee
| Name | Londonderry School District |
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| Applicant type | G |
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| FRN | 0006613236 |
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| Location | LONDONDERRY, NH |
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| Address | 268 MAMMOTH RD, LONDONDERRY, NH, 03053 |
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| Phone | 6034326941 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 453.50000000 | | | 50.000000 | 50.000000 | |
| 2 | 1 | MO | 453.50000000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 453.50000000 | | 20K0F3E |
| 2 | 1 | 453.50000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 295 MAMMOTH RD, LONDONBERRY, ROCKINGHAM, NH | 42.85119444, -71.35477778 | 110.000 m | | | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 295 MAMMOTH RD, LONDONBERRY, NH | | 6034326941 |
License history
| Date | File or call sign | Action |
|---|
| 2013-03-02 | KNFX450 | LIEXP |
| 2012-10-08 | KNFX450 | LETRES |
| 2002-10-08 | KNFX450 | LIREN |
| 2002-10-07 | KNFX450 | LETRES |
| 2002-03-14 | KNFX450 | LIAUA |
| 2001-10-09 | KNFX450 | AUDOPR |
| 2000-10-20 | KNFX450 | LICCNV |
| 1997-11-19 | KNFX450 | AUTHPR |
| 1997-11-19 | KNFX450 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1213250 | 2026-08-02 01:15:51 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNFX450 | ULS 1213250 | 2026-08-02 01:15:51 |
| Status | E | ULS 1213250 | 2026-08-02 01:15:51 |
| Service | PW | ULS 1213250 | 2026-08-02 01:15:51 |
| Grant Date | 2002-10-08 | ULS 1213250 | 2026-08-02 01:15:51 |
| Expiration Date | 2012-12-29 | ULS 1213250 | 2026-08-02 01:15:51 |
| Cancellation Date | 2013-03-02 | ULS 1213250 | 2026-08-02 01:15:51 |