Universal Licensing System
WNWU638
DuPont Electronics Microcircuits Industries, Ltd.
License details
| ULS identifier | 1686232 |
|---|
| Call sign | WNWU638 |
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| Radio service | IG |
|---|
| Status | A |
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| Grant date | 2021-06-17 |
|---|
| Expiration | 2031-07-26 |
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| Frequency range | 451.45 - 467.375 MHz (5 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | MANATI, PR |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:06 |
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Licensee
| Name | DuPont Electronics Microcircuits Industries, Ltd. |
|---|
| Applicant type | C |
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| FRN | 0005411764 |
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| Location | Washington, DC |
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| Address | 1001 G Street NW, Suite 500 West, Washington, DC, 20001 |
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| Phone | 2024344100 |
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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 |
|---|
| 2 | 1 | FB | 451.45000000 | | | 25.000000 | 50.000000 | |
| 3 | 1 | MO | 451.45000000 | | | 4.000000 | 4.000000 | |
| 2 | 2 | FB2 | 451.67500000 | | | 45.000000 | 90.000000 | |
| 2 | 3 | FB2 | 451.67500000 | | | 45.000000 | 90.000000 | |
| 3 | 1 | MO | 451.67500000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 451.67500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | FB2 | 452.67500000 | | | 25.000000 | 50.000000 | |
| 3 | 1 | MO | 456.67500000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 456.67500000 | | | 4.000000 | 4.000000 | |
| 4 | 1 | FX1 | 456.67500000 | | | 25.000000 | 50.000000 | |
| 5 | 1 | FX1 | 456.67500000 | | | 25.000000 | 50.000000 | |
| 3 | 1 | MO | 457.67500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | FB2 | 462.37500000 | | | 25.000000 | 50.000000 | |
| 3 | 1 | MO | 467.37500000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MOI | 469.50000000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.45000000 | | 7K60FXE |
| 2 | 1 | 451.45000000 | | 11K2F3E |
| 3 | 1 | 451.45000000 | | 11K2F3E |
| 3 | 1 | 451.45000000 | | 7K60FXE |
| 2 | 2 | 451.67500000 | | 7K60FXE |
| 2 | 2 | 451.67500000 | | 11K2F3E |
| 2 | 3 | 451.67500000 | | 7K60FXE |
| 2 | 3 | 451.67500000 | | 11K2F3E |
| 3 | 1 | 451.67500000 | | 7K60FXE |
| 3 | 1 | 451.67500000 | | 11K2F3E |
| 3 | 1 | 451.67500000 | | 11K2F3E |
| 3 | 1 | 451.67500000 | | 7K60FXE |
| 2 | 1 | 452.67500000 | | 11K2F3E |
| 2 | 1 | 452.67500000 | | 7K60FXE |
| 3 | 1 | 456.67500000 | | 7K60FXE |
| 3 | 1 | 456.67500000 | | 11K2F3E |
| 3 | 1 | 456.67500000 | | 11K2F3E |
| 3 | 1 | 456.67500000 | | 7K60FXE |
| 4 | 1 | 456.67500000 | | 7K60FXE |
| 4 | 1 | 456.67500000 | | 11K2F3E |
| 5 | 1 | 456.67500000 | | 7K60FXE |
| 5 | 1 | 456.67500000 | | 11K2F3E |
| 3 | 1 | 457.67500000 | | 11K2F3E |
| 3 | 1 | 457.67500000 | | 7K60FXE |
| 2 | 1 | 462.37500000 | | 11K2F3E |
| 2 | 1 | 462.37500000 | | 7K60FXE |
| 3 | 1 | 467.37500000 | | 11K2F3E |
| 3 | 1 | 467.37500000 | | 7K60FXE |
| 1 | 1 | 469.50000000 | | 11K2F3E |
| 1 | 1 | 469.50000000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | PR | | | | | N |
| 2 | T | Hwy 686 KM 2.3, MANATI, MANATI, PR | 18.45161111, -66.47338889 | 20.000 m | BPIPE | 8.000 m structure / 10.000 m overall | N |
| 3 | T | | | | | | N |
| 4 | T | MANATI, PR | | | | | N |
| 5 | T | MANATI, PR | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 10.000 m | | | | -7.100 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 2 | 2 | T | | 10.000 m | | | | -7.100 | |
| 3 | 2 | T | | 10.000 m | | | | -7.100 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | HWY 686 KM 2.2 CALL BOX DEMI, MANATI, PR | MANATI | 7878841405 |
License history
| Date | File or call sign | Action |
|---|
| 2022-11-01 | WNWU638 | LITRAN |
| 2022-10-21 | WNWU638 | LIAUA |
| 2021-06-17 | WNWU638 | LIREN |
| 2021-05-13 | WNWU638 | LIMOD |
| 2021-05-03 | WNWU638 | LETRES |
| 2020-08-04 | WNWU638 | LETCNS |
| 2019-11-05 | WNWU638 | LIMOD |
| 2014-01-14 | WNWU638 | LIMOD |
| 2013-09-21 | WNWU638 | ESCAPR |
| 2011-07-12 | WNWU638 | LIREN |
| 2011-07-09 | WNWU638 | ESCAPR |
| 2011-05-02 | WNWU638 | LETRES |
| 2001-08-21 | WNWU638 | LIAUA |
| 2001-07-26 | WNWU638 | LIREN |
| 2001-04-23 | WNWU638 | LETRES |
| 2000-11-23 | WNWU638 | LICCNV |
| 1996-07-18 | WNWU638 | AUTHPR |
| 1996-07-18 | WNWU638 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1686232 | 2026-08-02 01:14:06 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNWU638 | ULS 1686232 | 2026-08-02 01:14:06 |
| Status | A | ULS 1686232 | 2026-08-02 01:14:06 |
| Service | IG | ULS 1686232 | 2026-08-02 01:14:06 |
| Grant Date | 2021-06-17 | ULS 1686232 | 2026-08-02 01:14:06 |
| Expiration Date | 2031-07-26 | ULS 1686232 | 2026-08-02 01:14:06 |