Universal Licensing System
KNNW709
COMTRONICS CORPORATION
License details
| ULS identifier | 1928512 |
|---|
| Call sign | KNNW709 |
|---|
| Radio service | YU |
|---|
| Status | T |
|---|
| Grant date | 2001-06-19 |
|---|
| Expiration | 2011-06-20 |
|---|
| Cancellation | 2011-02-22 |
|---|
| Frequency range | 896.2 - 937.175 MHz (6 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | NEEDHAM, NORFOLK, MA |
|---|
| Coordinates | 42.3034444, -71.2183889 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:14:01 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FX1 | 896.20000000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 896.20000000 | | | 30.000000 | | |
| 2 | 1 | FX1 | 897.66250000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 897.66250000 | | | 30.000000 | | |
| 2 | 1 | FX1 | 898.17500000 | | | 30.000000 | 30.000000 | |
| 3 | 1 | MO | 898.17500000 | | | 30.000000 | | |
| 1 | 1 | FB4C | 935.20000000 | | | 110.000000 | 220.000000 | |
| 1 | 1 | FB4C | 936.66250000 | | | 110.000000 | 220.000000 | |
| 1 | 1 | FB4C | 937.17500000 | | | 110.000000 | 220.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 896.20000000 | | 13K6F3E |
| 3 | 1 | 896.20000000 | | 13K6F3E |
| 2 | 1 | 897.66250000 | | 13K6F3E |
| 3 | 1 | 897.66250000 | | 13K6F3E |
| 2 | 1 | 898.17500000 | | 13K6F3E |
| 3 | 1 | 898.17500000 | | 13K6F3E |
| 1 | 1 | 935.20000000 | | 13K6F3E |
| 1 | 1 | 936.66250000 | | 13K6F3E |
| 1 | 1 | 937.17500000 | | 13K6F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 140 141 CABOT RD, NEEDHAM, NORFOLK, MA | 42.30344444, -71.21838889 | 45.000 m | TOWER | 366.000 m structure / 366.000 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 | | 275.000 m | | | | 277.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 19 VERNON ST, NORWOOD, MA | | 6177620901 |
License history
| Date | File or call sign | Action |
|---|
| 2011-02-22 | KNNW709 | LITERM |
| 2006-10-02 | KNNW709 | LIPASS |
| 2005-03-31 | KNNW709 | LIASS |
| 2005-03-22 | KNNW709 | LTSAPR |
| 2001-06-19 | KNNW709 | LIREN |
| 2001-03-26 | KNNW709 | LETRES |
| 2000-11-24 | KNNW709 | LICCNV |
| 1998-03-19 | KNNW709 | LIMOD |
| 1998-03-19 | KNNW709 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1928512 | 2026-08-02 01:14:01 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNW709 | ULS 1928512 | 2026-08-02 01:14:01 |
| Status | T | ULS 1928512 | 2026-08-02 01:14:01 |
| Service | YU | ULS 1928512 | 2026-08-02 01:14:01 |
| Grant Date | 2001-06-19 | ULS 1928512 | 2026-08-02 01:14:01 |
| Expiration Date | 2011-06-20 | ULS 1928512 | 2026-08-02 01:14:01 |
| Cancellation Date | 2011-02-22 | ULS 1928512 | 2026-08-02 01:14:01 |