Universal Licensing System
KNNJ638
DUDLEY CHARLTON REG SCHOOL DISTRICT
License details
| ULS identifier | 1631794 |
|---|
| Call sign | KNNJ638 |
|---|
| Radio service | IG |
|---|
| Status | E |
|---|
| Grant date | 2010-12-17 |
|---|
| Expiration | 2021-02-09 |
|---|
| Cancellation | 2021-04-17 |
|---|
| Frequency range | 451.3 - 464.675 MHz (4 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | DUDLEY, WORCESTER, MA |
|---|
| Coordinates | 42.0533889, -71.9177778 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:14:21 |
|---|
Licensee
| Name | DUDLEY CHARLTON REG SCHOOL DISTRICT |
|---|
| Applicant type | G |
|---|
| FRN | 0004900296 |
|---|
| Location | DUDLEY, MA |
|---|
| Address | 68 DUDLEY OXFORD RD, DUDLEY, MA, 01571 |
|---|
| Phone | 5089436700 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.30000000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | FB2 | 451.30000000 | | | 40.000000 | 80.000000 | |
| 1 | 1 | MO | 456.30000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 464.52500000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 464.67500000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.30000000 | | 7K60FXE |
| 2 | 1 | 451.30000000 | | 7K60FXE |
| 1 | 1 | 456.30000000 | | 7K60FXE |
| 1 | 1 | 464.52500000 | | 7K60FXE |
| 1 | 1 | 464.52500000 | | 11K2F3E |
| 1 | 1 | 464.67500000 | | 11K2F3E |
| 1 | 1 | 464.67500000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | N |
| 2 | T | 68 DUDLEY OXFORD RD, DUDLEY, WORCESTER, MA | 42.05338889, -71.91777778 | 199.000 m | BANT | 11.000 m structure / 11.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 11.000 m | H | 3.0000 | | 34.100 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 68 DUDLEY OXFORD RD, DUDLEY, MA | WORCESTER | 5089436700 |
License history
| Date | File or call sign | Action |
|---|
| 2021-04-17 | KNNJ638 | LIEXP |
| 2020-11-16 | KNNJ638 | LETRES |
| 2017-08-10 | KNNJ638 | LIMOD |
| 2017-06-27 | KNNJ638 | LIMOD |
| 2011-03-24 | KNNJ638 | AUTHPR |
| 2010-12-17 | KNNJ638 | LIREN |
| 2010-12-17 | KNNJ638 | LTSAPR |
| 2010-11-15 | KNNJ638 | LETRES |
| 2001-09-17 | KNNJ638 | AUDOPR |
| 2001-02-10 | KNNJ638 | LIREN |
| 2000-11-28 | KNNJ638 | LETRES |
| 2000-11-23 | KNNJ638 | LICCNV |
| 1996-02-09 | KNNJ638 | AUTHPR |
| 1996-02-09 | KNNJ638 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1631794 | 2026-08-02 01:14:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNJ638 | ULS 1631794 | 2026-08-02 01:14:21 |
| Status | E | ULS 1631794 | 2026-08-02 01:14:21 |
| Service | IG | ULS 1631794 | 2026-08-02 01:14:21 |
| Grant Date | 2010-12-17 | ULS 1631794 | 2026-08-02 01:14:21 |
| Expiration Date | 2021-02-09 | ULS 1631794 | 2026-08-02 01:14:21 |
| Cancellation Date | 2021-04-17 | ULS 1631794 | 2026-08-02 01:14:21 |