Universal Licensing System
KNAK629
IBM Research and Development Inc.
License details
| ULS identifier | 1613782 |
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| Call sign | KNAK629 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2021-02-09 |
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| Expiration | 2031-02-07 |
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| Frequency range | 35.06 MHz |
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| Locations | 1 |
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| Representative location | RESEARCH TRIANGLE PK, DURHAM, NC |
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| Coordinates | 35.9126389, -78.8569444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:46 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 35.06000000 | | | 1.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 35.06000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | IBM BLDG 061, RESEARCH TRIANGLE PK, DURHAM, NC | 35.91263889, -78.85694444 | 111.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 5.000 m | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | IBM BLDG 002 RESEARCH TRIANGLE, PARK, NC | | 9146977427 |
License history
| Date | File or call sign | Action |
|---|
| 2021-02-09 | KNAK629 | LIREN |
| 2020-11-16 | KNAK629 | LETRES |
| 2020-04-29 | KNAK629 | LIAUA |
| 2011-03-24 | KNAK629 | AUTHPR |
| 2010-11-13 | KNAK629 | LIREN |
| 2008-08-16 | KNAK629 | LIAUA |
| 2008-08-15 | KNAK629 | ESUAPR |
| 2007-03-07 | KNAK629 | LIAUA |
| 2007-03-06 | KNAK629 | ESUAPR |
| 2002-03-07 | KNAK629 | LIAUA |
| 2002-01-28 | KNAK629 | AUDOPR |
| 2000-12-16 | KNAK629 | LIREN |
| 2000-11-28 | KNAK629 | LETRES |
| 2000-11-22 | KNAK629 | LICCNV |
| 2000-07-07 | KNAK629 | AUTHPR |
| 1996-02-14 | KNAK629 | LIAUA |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1613782 | 2026-08-02 01:13:46 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNAK629 | ULS 1613782 | 2026-08-02 01:13:46 |
| Status | A | ULS 1613782 | 2026-08-02 01:13:46 |
| Service | IG | ULS 1613782 | 2026-08-02 01:13:46 |
| Grant Date | 2021-02-09 | ULS 1613782 | 2026-08-02 01:13:46 |
| Expiration Date | 2031-02-07 | ULS 1613782 | 2026-08-02 01:13:46 |