Universal Licensing System
WQBU893
KELTRON CORPORATION
License details
| ULS identifier | 2680023 |
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| Call sign | WQBU893 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-12-20 |
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| Expiration | 2014-12-20 |
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| Cancellation | 2015-02-21 |
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| Frequency range | 464.2625 - 464.6875 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | WALTHAM, MIDDLESEX, MA |
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| Coordinates | 42.3770278, -71.2325556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:29 |
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Licensee
| Name | KELTRON CORPORATION |
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| Applicant type | C |
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| Location | WALTHAM, MA |
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| Address | 101A First Avenue, WALTHAM, MA, 02451 |
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| Phone | 7818948710 |
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| Email | [email protected] |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 464.26250000 | | | 10.000000 | 10.000000 | |
| 1 | 1 | MO | 464.68750000 | | | 10.000000 | 10.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.26250000 | | 11K3F2D |
| 1 | 1 | 464.68750000 | | 11K3F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | WALTHAM, MIDDLESEX, MA | 42.37702778, -71.23255556 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 225 CRESCENT ST, WALTHAM, MA | MIDDLESEX | 7818948710 |
License history
| Date | File or call sign | Action |
|---|
| 2015-02-21 | WQBU893 | LIEXP |
| 2014-09-29 | WQBU893 | LETRES |
| 2014-09-08 | WQBU893 | ESUAPR |
| 2014-08-19 | WQBU893 | ESUAPR |
| 2014-08-13 | WQBU893 | ESUAPR |
| 2014-08-12 | WQBU893 | ESUAPR |
| 2014-08-11 | WQBU893 | ESUAPR |
| 2011-11-30 | WQBU893 | LIAUA |
| 2011-11-29 | WQBU893 | ESUAPR |
| 2005-09-19 | WQBU893 | LETCNS |
| 2004-12-20 | WQBU893 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2680023 | 2026-08-02 01:14:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQBU893 | ULS 2680023 | 2026-08-02 01:14:29 |
| Status | E | ULS 2680023 | 2026-08-02 01:14:29 |
| Service | IG | ULS 2680023 | 2026-08-02 01:14:29 |
| Grant Date | 2004-12-20 | ULS 2680023 | 2026-08-02 01:14:29 |
| Expiration Date | 2014-12-20 | ULS 2680023 | 2026-08-02 01:14:29 |
| Cancellation Date | 2015-02-21 | ULS 2680023 | 2026-08-02 01:14:29 |