Universal Licensing System
WPKR321
BENCHMARK MATERIALS INC
License details
| ULS identifier | 1750413 |
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| Call sign | WPKR321 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-06-12 |
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| Expiration | 2002-06-12 |
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| Cancellation | 2002-10-13 |
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| Frequency range | 464.6375 MHz |
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| Locations | 1 |
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| Representative location | DURHAM, NC |
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| Coordinates | 35.9112500, -78.8694444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:03 |
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Licensee
| Name | BENCHMARK MATERIALS INC |
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| Applicant type | C |
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| Location | RESEARCH TRIANGLE PK, NC |
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| Address | RESEARCH TRIANGLE PK, NC, 27709 |
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| Phone | 9193802749 |
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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 | MO | 464.63750000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.63750000 | | 20K0F2D |
| 1 | 1 | 464.63750000 | | 20K0F3E |
| 1 | 1 | 464.63750000 | | 20K0F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DURHAM, NC | 35.91125000, -78.86944444 | | | | |
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 |
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| 1 | 2300 GATEWAY CENTER BLVD, MORRISVILLE, NC | | 9193802749 |
License history
| Date | File or call sign | Action |
|---|
| 2002-10-13 | WPKR321 | LIEXP |
| 2002-04-29 | WPKR321 | LETAUS |
| 2002-03-18 | WPKR321 | LETRES |
| 2000-11-23 | WPKR321 | LICCNV |
| 1997-06-12 | WPKR321 | AUTHPR |
| 1997-06-12 | WPKR321 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1750413 | 2026-08-02 01:29:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKR321 | ULS 1750413 | 2026-08-02 01:29:03 |
| Status | E | ULS 1750413 | 2026-08-02 01:29:03 |
| Service | IG | ULS 1750413 | 2026-08-02 01:29:03 |
| Grant Date | 1997-06-12 | ULS 1750413 | 2026-08-02 01:29:03 |
| Expiration Date | 2002-06-12 | ULS 1750413 | 2026-08-02 01:29:03 |
| Cancellation Date | 2002-10-13 | ULS 1750413 | 2026-08-02 01:29:03 |