Universal Licensing System
KNIF787
BOSTON SAND AND GRAVEL COMPANY
License details
| ULS identifier | 1775383 |
|---|
| Call sign | KNIF787 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2021-09-10 |
|---|
| Expiration | 2031-10-03 |
|---|
| Frequency range | 451.925 - 456.925 MHz (2 frequencies) |
|---|
| Locations | 7 |
|---|
| Representative location | TEWSKBURY, MIDDLESEX, MA |
|---|
| Coordinates | 42.6198056, -71.2695000 |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:14 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB7 | 451.92500000 | | | 100.000000 | 355.000000 | |
| 2 | 1 | FB7 | 451.92500000 | | | 100.000000 | 251.000000 | |
| 3 | 1 | FB7 | 451.92500000 | | | 100.000000 | 348.000000 | |
| 5 | 1 | MO | 451.92500000 | | | 100.000000 | 100.000000 | |
| 6 | 1 | MO | 451.92500000 | | | 100.000000 | 100.000000 | |
| 7 | 1 | MO | 451.92500000 | | | 100.000000 | 100.000000 | |
| 4 | 1 | FX1 | 456.92500000 | | | 30.000000 | 30.000000 | |
| 4 | 1 | FX1 | 456.92500000 | | | 100.000000 | 100.000000 | |
| 5 | 1 | MO | 456.92500000 | | | 100.000000 | 100.000000 | |
| 6 | 1 | MO | 456.92500000 | | | 100.000000 | 100.000000 | |
| 7 | 1 | MO | 456.92500000 | | | 100.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.92500000 | | 11K2F2D |
| 1 | 1 | 451.92500000 | | 11K2F3E |
| 2 | 1 | 451.92500000 | | 11K2F2D |
| 2 | 1 | 451.92500000 | | 11K2F3E |
| 3 | 1 | 451.92500000 | | 11K2F2D |
| 3 | 1 | 451.92500000 | | 11K2F3E |
| 5 | 1 | 451.92500000 | | 11K2F3E |
| 5 | 1 | 451.92500000 | | 11K2F2D |
| 6 | 1 | 451.92500000 | | 11K2F2D |
| 6 | 1 | 451.92500000 | | 11K2F3E |
| 7 | 1 | 451.92500000 | | 11K2F3E |
| 7 | 1 | 451.92500000 | | 11K2F2D |
| 4 | 1 | 456.92500000 | | 11K2F3E |
| 4 | 1 | 456.92500000 | | 11K2F2D |
| 4 | 1 | 456.92500000 | | 11K2F3E |
| 4 | 1 | 456.92500000 | | 11K2F2D |
| 5 | 1 | 456.92500000 | | 11K2F3E |
| 5 | 1 | 456.92500000 | | 11K2F2D |
| 6 | 1 | 456.92500000 | | 11K2F3E |
| 6 | 1 | 456.92500000 | | 11K2F2D |
| 7 | 1 | 456.92500000 | | 11K2F3E |
| 7 | 1 | 456.92500000 | | 11K2F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 100 ASTELL ST, TEWSKBURY, MIDDLESEX, MA | 42.61980556, -71.26950000 | 46.000 m | TANK | 26.000 m structure / 29.000 m overall | N |
| 2 | T | PAC MONADNOCK, PETERBOROUGH, HILLSBOROUGH, NH | 42.86091667, -71.87786111 | 681.000 m | TOWER | 36.000 m structure / 36.000 m overall | N |
| 3 | T | 225 FRANKLIN ST, BOSTON, SUFFOLK, MA | 42.35594444, -71.04338889 | 8.000 m | B | 146.000 m structure / 152.000 m overall | N |
| 4 | T | MA | | | | | |
| 5 | T | HILLSBOROUGH, NH | 42.86091667, -71.87786111 | | | | |
| 6 | T | SUFFOLK, MA | 42.35594444, -71.04338889 | | | | |
| 7 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 29.000 m | | | | 32.000 | |
| 1 | 2 | T | | 35.000 m | | | | 408.000 | |
| 1 | 3 | T | | 152.000 m | | | | 147.000 | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
| 1 | 7 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 169 PORTLAND STREET, BOSTON, MA | | 6172279000 |
License history
| Date | File or call sign | Action |
|---|
| 2021-09-10 | KNIF787 | LIREN |
| 2011-10-04 | KNIF787 | LIREN |
| 2011-09-09 | KNIF787 | LTSAPR |
| 2011-07-11 | KNIF787 | LETRES |
| 2001-10-23 | KNIF787 | AUDOPR |
| 2001-09-22 | KNIF787 | LIREN |
| 2001-09-21 | KNIF787 | LITIN |
| 2001-07-09 | KNIF787 | LETRES |
| 2000-11-23 | KNIF787 | LICCNV |
| 2000-02-29 | KNIF787 | LIMOD |
| 2000-02-29 | KNIF787 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1775383 | 2026-08-02 01:14:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNIF787 | ULS 1775383 | 2026-08-02 01:14:14 |
| Status | A | ULS 1775383 | 2026-08-02 01:14:14 |
| Service | IG | ULS 1775383 | 2026-08-02 01:14:14 |
| Grant Date | 2021-09-10 | ULS 1775383 | 2026-08-02 01:14:14 |
| Expiration Date | 2031-10-03 | ULS 1775383 | 2026-08-02 01:14:14 |