Universal Licensing System
KDB450
Littleton, Town of Fire Dept.
License details
| ULS identifier | 1285507 |
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| Call sign | KDB450 |
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| Radio service | PW |
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| Status | E |
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| Grant date | 2013-05-08 |
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| Expiration | 2023-07-22 |
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| Cancellation | 2023-09-23 |
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| Frequency range | 153.74 - 153.815 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | LITTLETON, MIDDLESEX, MA |
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| Coordinates | 42.5339722, -71.4731111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:10:52 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | MO | 153.74000000 | | | 50.000000 | 50.000000 | |
| 1 | 1 | FB | 153.81500000 | | | 125.000000 | 100.000000 | |
| 2 | 1 | FB | 153.81500000 | | | 100.000000 | 100.000000 | |
| 3 | 1 | MO | 153.81500000 | | | 100.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 153.74000000 | | 11K0F3E |
| 1 | 1 | 153.81500000 | | 11K3F3E |
| 2 | 1 | 153.81500000 | | 11K3F3E |
| 3 | 1 | 153.81500000 | | 11K3F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CEDAR ROAD WATER TANK, LITTLETON, MIDDLESEX, MA | 42.53397222, -71.47311111 | 122.000 m | TANK | 29.000 m structure / 35.000 m overall | N |
| 2 | T | FIRE STATION 20 FOSTER STREET, LITTLETON, MIDDLESEX, MA | 42.53813889, -71.48366667 | 120.000 m | POLE | 9.000 m structure / 15.000 m overall | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 35.000 m | | | | 81.000 | |
| 1 | 2 | T | | 15.000 m | | | | 57.400 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 20 FOSTER STREET, LITTLETON, MA | MIDDLESEX | 9789522302 |
License history
| Date | File or call sign | Action |
|---|
| 2023-09-23 | KDB450 | LIEXP |
| 2023-07-12 | KDB450 | ESURNW |
| 2023-06-22 | KDB450 | ESURNW |
| 2023-05-23 | KDB450 | ESURNW |
| 2023-05-01 | KDB450 | LETRES |
| 2023-04-23 | KDB450 | ESURNW |
| 2019-11-18 | KDB450 | LIAUA |
| 2019-10-11 | KDB450 | LIMOD |
| 2013-12-19 | KDB450 | LIMOD |
| 2013-05-08 | KDB450 | LIREN |
| 2013-05-08 | KDB450 | LTSAPR |
| 2013-04-29 | KDB450 | LETRES |
| 2003-10-14 | KDB450 | LETCNS |
| 2003-06-03 | KDB450 | LIREN |
| 2003-04-28 | KDB450 | LETRES |
| 2003-01-16 | KDB450 | LIMOD |
| 2002-10-24 | KDB450 | LITIN |
| 2001-10-05 | KDB450 | AUDOPR |
| 2000-10-20 | KDB450 | LICCNV |
| 1998-07-22 | KDB450 | LIMOD |
| 1998-07-22 | KDB450 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1285507 | 2026-08-02 01:10:52 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KDB450 | ULS 1285507 | 2026-08-02 01:10:52 |
| Status | E | ULS 1285507 | 2026-08-02 01:10:52 |
| Service | PW | ULS 1285507 | 2026-08-02 01:10:52 |
| Grant Date | 2013-05-08 | ULS 1285507 | 2026-08-02 01:10:52 |
| Expiration Date | 2023-07-22 | ULS 1285507 | 2026-08-02 01:10:52 |
| Cancellation Date | 2023-09-23 | ULS 1285507 | 2026-08-02 01:10:52 |