Universal Licensing System
KNNF699
IBM Research and Development Inc.
License details
| ULS identifier | 1588551 |
|---|
| Call sign | KNNF699 |
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| Radio service | GU |
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| Status | C |
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| Grant date | 2021-01-21 |
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| Expiration | 2031-01-22 |
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| Cancellation | 2021-11-30 |
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| Frequency range | 899.6625 - 938.675 MHz (4 frequencies) |
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| Locations | 5 |
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| Representative location | BETHESDA, MONTGOMERY, MD |
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| Coordinates | 39.0287222, -77.1396944 |
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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 |
|---|
| 3 | 1 | FX1 | 899.66250000 | | | 14.000000 | 45.000000 | |
| 5 | 1 | MO | 899.66250000 | | | 10.000000 | 10.000000 | |
| 3 | 1 | FX1 | 899.67500000 | | | 14.000000 | 45.000000 | |
| 4 | 1 | MO | 899.67500000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | FB2 | 938.66250000 | | | 75.000000 | 500.000000 | |
| 1 | 1 | FB2 | 938.67500000 | | | 75.000000 | 500.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 899.66250000 | | 13K6F3E |
| 5 | 1 | 899.66250000 | | 13K6F3E |
| 3 | 1 | 899.67500000 | | 13K6F3E |
| 4 | 1 | 899.67500000 | | 13K6F3E |
| 2 | 1 | 938.66250000 | | 13K6F3E |
| 1 | 1 | 938.67500000 | | 13K6F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 6705 FERNWOOD RD, BETHESDA, MONTGOMERY, MD | 39.02872222, -77.13969444 | 98.000 m | B | 29.000 m structure / 34.000 m overall | N |
| 2 | T | 800 N FREDERICK AVE, GAITHERSBURG, MONTGOMERY, MD | 39.15427778, -77.21858333 | 122.000 m | B | 14.000 m structure / 16.000 m overall | N |
| 3 | T | MD | | | | | |
| 4 | T | | | | | | |
| 5 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 34.000 m | | | | 40.000 | |
| 1 | 2 | T | | 16.000 m | | | | 3.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 6710 ROCKLEDGE DR, BETHESDA, MD | | 3018031300 |
License history
| Date | File or call sign | Action |
|---|
| 2021-12-01 | KNNF699 | LICAN |
| 2021-01-21 | KNNF699 | LIREN |
| 2020-10-26 | KNNF699 | LETRES |
| 2011-03-24 | KNNF699 | AUTHPR |
| 2010-11-13 | KNNF699 | LIREN |
| 2010-11-01 | KNNF699 | LETRES |
| 2008-08-16 | KNNF699 | LIAUA |
| 2008-08-15 | KNNF699 | ESUAPR |
| 2007-03-07 | KNNF699 | LIAUA |
| 2007-03-06 | KNNF699 | ESUAPR |
| 2002-03-07 | KNNF699 | LIAUA |
| 2000-12-16 | KNNF699 | LIREN |
| 2000-11-22 | KNNF699 | LICCNV |
| 2000-10-24 | KNNF699 | LETRES |
| 2000-07-07 | KNNF699 | AUTHPR |
| 1997-09-03 | KNNF699 | LIAUA |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1588551 | 2026-08-02 01:13:46 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNF699 | ULS 1588551 | 2026-08-02 01:13:46 |
| Status | C | ULS 1588551 | 2026-08-02 01:13:46 |
| Service | GU | ULS 1588551 | 2026-08-02 01:13:46 |
| Grant Date | 2021-01-21 | ULS 1588551 | 2026-08-02 01:13:46 |
| Expiration Date | 2031-01-22 | ULS 1588551 | 2026-08-02 01:13:46 |
| Cancellation Date | 2021-11-30 | ULS 1588551 | 2026-08-02 01:13:46 |