Universal Licensing System
WPBX821
IBM Research and Development Inc.
License details
| ULS identifier | 1781984 |
|---|
| Call sign | WPBX821 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2023-07-08 |
|---|
| Expiration | 2033-07-07 |
|---|
| Frequency range | 457.6 - 461.2375 MHz (2 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | DURHAM, NC |
|---|
| Coordinates | 35.9106944, -78.8558333 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:13:46 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 457.60000000 | | | 1.000000 | 1.000000 | |
| 1 | 1 | MO | 461.23750000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 457.60000000 | | 11K2F1D |
| 1 | 1 | 461.23750000 | | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DURHAM, NC | 35.91069444, -78.85583333 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | CORNWALLIS & I40 BLDG 306 RESEARCH TRIANGLE, RESEARCH TRIANGLPARK, NC | DURHAM | 9195436604 |
License history
| Date | File or call sign | Action |
|---|
| 2023-07-08 | WPBX821 | LIREN |
| 2023-04-10 | WPBX821 | LETRES |
| 2020-04-29 | WPBX821 | LIAUA |
| 2014-07-08 | WPBX821 | LIMOD |
| 2014-07-07 | WPBX821 | ESUAPR |
| 2013-05-03 | WPBX821 | LIREN |
| 2013-04-24 | WPBX821 | LIMOD |
| 2013-04-08 | WPBX821 | LETRES |
| 2008-08-16 | WPBX821 | LIAUA |
| 2008-08-15 | WPBX821 | ESUAPR |
| 2007-03-07 | WPBX821 | LIAUA |
| 2007-03-06 | WPBX821 | ESUAPR |
| 2003-04-10 | WPBX821 | LIREN |
| 2002-03-07 | WPBX821 | LIAUA |
| 2002-01-28 | WPBX821 | AUDOPR |
| 2000-11-23 | WPBX821 | LICCNV |
| 2000-07-07 | WPBX821 | AUTHPR |
| 1998-07-07 | WPBX821 | LIAUA |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1781984 | 2026-08-02 01:13:46 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPBX821 | ULS 1781984 | 2026-08-02 01:13:46 |
| Status | A | ULS 1781984 | 2026-08-02 01:13:46 |
| Service | IG | ULS 1781984 | 2026-08-02 01:13:46 |
| Grant Date | 2023-07-08 | ULS 1781984 | 2026-08-02 01:13:46 |
| Expiration Date | 2033-07-07 | ULS 1781984 | 2026-08-02 01:13:46 |