Universal Licensing System
WRDM997
Bayer Research and Development Services LLC
License details
| ULS identifier | 4168767 |
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| Call sign | WRDM997 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-06-10 |
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| Expiration | 2029-06-10 |
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| Frequency range | 452.5625 - 468.3125 MHz (7 frequencies) |
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| Locations | 3 |
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| Representative location | TUCSON, PIMA, AZ |
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| Coordinates | 32.3760000, -111.2366944 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:57 |
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Licensee
| Name | Bayer Research and Development Services LLC |
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| Applicant type | L |
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| FRN | 0029762630 |
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| Location | St. Louis, MO |
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| Address | 800 North Lindbergh Boulevard, Mail Code E2N, St. Louis, MO, 63167 |
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| Phone | 3146829346 |
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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 |
|---|
| 1 | 1 | MO | 452.56250000 | | | 4.000000 | 5.000000 | |
| 1 | 1 | MO | 452.61250000 | | | 4.000000 | 5.000000 | |
| 1 | 1 | MO | 457.56250000 | | | 4.000000 | 5.000000 | |
| 1 | 1 | MO | 457.58750000 | | | 4.000000 | 5.000000 | |
| 1 | 1 | MO | 457.61250000 | | | 4.000000 | 5.000000 | |
| 2 | 1 | FB2 | 463.31250000 | | | 50.000000 | 65.000000 | |
| 3 | 1 | MO | 463.31250000 | | | 4.000000 | 5.000000 | |
| 3 | 1 | MO | 468.31250000 | | | 4.000000 | 5.000000 | |
| 4 | 1 | FX1 | 468.31250000 | | | 50.000000 | 65.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.56250000 | | 7K60FXD |
| 1 | 1 | 452.56250000 | | 11K2F3E |
| 1 | 1 | 452.61250000 | | 7K60FXD |
| 1 | 1 | 452.61250000 | | 11K2F3E |
| 1 | 1 | 457.56250000 | | 11K2F3E |
| 1 | 1 | 457.56250000 | | 7K60FXD |
| 1 | 1 | 457.58750000 | | 7K60FXD |
| 1 | 1 | 457.58750000 | | 11K2F3E |
| 1 | 1 | 457.61250000 | | 11K2F3E |
| 1 | 1 | 457.61250000 | | 7K60FXD |
| 2 | 1 | 463.31250000 | | 7K60FXE |
| 2 | 1 | 463.31250000 | | 11K2F3E |
| 3 | 1 | 463.31250000 | | 7K60FXE |
| 3 | 1 | 463.31250000 | | 11K2F3E |
| 3 | 1 | 468.31250000 | | 11K2F3E |
| 3 | 1 | 468.31250000 | | 7K60FXE |
| 4 | 1 | 468.31250000 | | 11K2F3E |
| 4 | 1 | 468.31250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | PIMA, AZ | | | | | |
| 2 | T | 9475 N SANDERS RD, TUCSON, PIMA, AZ | 32.37600000, -111.23669444 | 618.000 m | B | 12.200 m structure / 15.200 m overall | N |
| 3 | T | PIMA, AZ | | | | | N |
| 4 | T | AZ | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 15.200 m | | | | -22.700 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 800 LINDBERGH BLVD MAIL CODE E2NE, SAINT LOUIS, MO | ST. LOUIS | 3146943883 |
License history
| Date | File or call sign | Action |
|---|
| 2024-02-16 | WRDM997 | LIAUA |
| 2021-01-01 | WRDM997 | LITRAN |
| 2020-11-17 | WRDM997 | LETCNS |
| 2020-08-01 | WRDM997 | LIASS |
| 2020-03-10 | WRDM997 | LETCNS |
| 2020-02-18 | WRDM997 | LIMOD |
| 2020-02-05 | WRDM997 | LIAUA |
| 2019-06-10 | WRDM997 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4168767 | 2026-08-02 01:23:57 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDM997 | ULS 4168767 | 2026-08-02 01:23:57 |
| Status | A | ULS 4168767 | 2026-08-02 01:23:57 |
| Service | IG | ULS 4168767 | 2026-08-02 01:23:57 |
| Grant Date | 2019-06-10 | ULS 4168767 | 2026-08-02 01:23:57 |
| Expiration Date | 2029-06-10 | ULS 4168767 | 2026-08-02 01:23:57 |