Universal Licensing System
KNNQ641
COMTRONICS CORPORATION
License details
| ULS identifier | 1928488 |
|---|
| Call sign | KNNQ641 |
|---|
| Radio service | YU |
|---|
| Status | T |
|---|
| Grant date | 2011-02-17 |
|---|
| Expiration | 2021-05-08 |
|---|
| Cancellation | 2011-02-22 |
|---|
| Frequency range | 897.75 - 900.75 MHz (4 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | FRAMINGHAM, MIDDLESEX, MA |
|---|
| Coordinates | 42.3456389, -71.4506111 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:14:01 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FX1 | 897.75000000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 897.75000000 | | | 30.000000 | 30.000000 | |
| 2 | 1 | FX1 | 898.68750000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 898.68750000 | | | 30.000000 | 30.000000 | |
| 2 | 1 | FX1 | 900.18750000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 900.18750000 | | | 30.000000 | 30.000000 | |
| 2 | 1 | FX1 | 900.75000000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 900.75000000 | | | 30.000000 | 30.000000 | |
| 1 | 1 | FB4C | 936.75000000 | | | 75.000000 | 174.000000 | |
| 1 | 1 | FB4C | 937.68750000 | | | 75.000000 | 174.000000 | |
| 1 | 1 | FB4C | 939.18750000 | | | 75.000000 | 174.000000 | |
| 1 | 1 | FB4C | 939.75000000 | | | 75.000000 | 174.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 897.75000000 | | 13K6F3E |
| 3 | 1 | 897.75000000 | | 13K6F3E |
| 2 | 1 | 898.68750000 | | 13K6F3E |
| 3 | 1 | 898.68750000 | | 13K6F3E |
| 2 | 1 | 900.18750000 | | 13K6F3E |
| 3 | 1 | 900.18750000 | | 13K6F3E |
| 2 | 1 | 900.75000000 | | 13K6F3E |
| 3 | 1 | 900.75000000 | | 13K6F3E |
| 1 | 1 | 936.75000000 | | 13K6F3E |
| 1 | 1 | 937.68750000 | | 13K6F3E |
| 1 | 1 | 939.18750000 | | 13K6F3E |
| 1 | 1 | 939.75000000 | | 13K6F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | BRIMSTONE LN, FRAMINGHAM, MIDDLESEX, MA | 42.34563889, -71.45061111 | 178.000 m | TOWER | 73.000 m structure / 73.000 m overall | N |
| 2 | T | MA | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 64.000 m | | | | 170.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 35 HUNTINGTON AVE, BOSTON, MA | | 6173289425 |
License history
| Date | File or call sign | Action |
|---|
| 2011-02-22 | KNNQ641 | LITERM |
| 2011-02-17 | KNNQ641 | LIREN |
| 2011-02-14 | KNNQ641 | LETRES |
| 2005-03-08 | KNNQ641 | LIASS |
| 2005-02-24 | KNNQ641 | LTSFRN |
| 2005-02-24 | KNNQ641 | ESCAPR |
| 2005-01-20 | KNNQ641 | LTSFRN |
| 2001-05-10 | KNNQ641 | LIREN |
| 2001-02-14 | KNNQ641 | LETRES |
| 2000-11-24 | KNNQ641 | LICCNV |
| 1998-02-27 | KNNQ641 | AUTHPR |
| 1998-02-27 | KNNQ641 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1928488 | 2026-08-02 01:14:01 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNQ641 | ULS 1928488 | 2026-08-02 01:14:01 |
| Status | T | ULS 1928488 | 2026-08-02 01:14:01 |
| Service | YU | ULS 1928488 | 2026-08-02 01:14:01 |
| Grant Date | 2011-02-17 | ULS 1928488 | 2026-08-02 01:14:01 |
| Expiration Date | 2021-05-08 | ULS 1928488 | 2026-08-02 01:14:01 |
| Cancellation Date | 2011-02-22 | ULS 1928488 | 2026-08-02 01:14:01 |