Universal Licensing System
KLR550
AMERICAN OPTICAL CORPORATION
License details
| ULS identifier | 1901356 |
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| Call sign | KLR550 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1996-07-11 |
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| Expiration | 2001-09-03 |
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| Cancellation | 2002-02-03 |
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| Frequency range | 153.35 MHz |
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| Locations | 2 |
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| Representative location | SOUTHBRIDGE, WORCESTER, MA |
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| Coordinates | 42.0723056, -72.0217500 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:11:13 |
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Licensee
| Name | AMERICAN OPTICAL CORPORATION |
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| Applicant type | C |
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| FRN | 0003618899 |
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| Location | SOUTHBRIDGE, MA |
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| Address | 14 MECHANIC ST, SOUTHBRIDGE, MA, 01550 |
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| Phone | 6177659711 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB | 153.35000000 | | | 90.000000 | 180.000000 | |
| 2 | 1 | MO | 153.35000000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 153.35000000 | | 20K0F3E |
| 2 | 1 | 153.35000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 14 MECHANIC ST, SOUTHBRIDGE, WORCESTER, MA | 42.07230556, -72.02175000 | 131.000 m | | | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 17.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 14 MECHANIC ST, SOUTHBRIDGE, MA | | 6177659711 |
License history
| Date | File or call sign | Action |
|---|
| 2002-02-03 | KLR550 | LIEXP |
| 2001-11-05 | KLR550 | AUDOPR |
| 2001-06-11 | KLR550 | LETRES |
| 2000-11-24 | KLR550 | LICCNV |
| 1996-07-11 | KLR550 | LIREN |
| 1996-07-11 | KLR550 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1901356 | 2026-08-02 01:11:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KLR550 | ULS 1901356 | 2026-08-02 01:11:13 |
| Status | E | ULS 1901356 | 2026-08-02 01:11:13 |
| Service | IG | ULS 1901356 | 2026-08-02 01:11:13 |
| Grant Date | 1996-07-11 | ULS 1901356 | 2026-08-02 01:11:13 |
| Expiration Date | 2001-09-03 | ULS 1901356 | 2026-08-02 01:11:13 |
| Cancellation Date | 2002-02-03 | ULS 1901356 | 2026-08-02 01:11:13 |