Universal Licensing System
WRDB684
Computer Dynamics of NW Illinois LLC
License details
| ULS identifier | 4136227 |
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| Call sign | WRDB684 |
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| Radio service | MG |
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| Status | A |
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| Grant date | 2019-03-20 |
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| Expiration | 2029-03-20 |
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| Frequency range | 10995 - 11325 MHz (2 frequencies) |
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| Locations | 1 |
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| Coordinates | 42.4756667, -90.2558333 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:44:28 |
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Licensee
| Name | Computer Dynamics of NW Illinois LLC |
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| Applicant type | L |
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| FRN | 0018108621 |
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| Location | FREEPORT, IL |
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| Address | 451 W. South St, FREEPORT, IL, 61032 |
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| Phone | 8152332641 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 1 | FXO | 11325.00000000 | | | | | |
| 1 | 1 | FXO | 11325.00000000 | | | | | |
| 1 | 1 | FXO | 11325.00000000 | | | | | |
| 1 | 1 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 3 | 10995.00000000 | | 79M3D7D |
| 1 | 3 | 10995.00000000 | | 79M3D7D |
| 1 | 3 | 10995.00000000 | | 79M3D7D |
| 1 | 3 | 10995.00000000 | | 79M3D7D |
| 1 | 1 | 11325.00000000 | | 79M6D7D |
| 1 | 1 | 11325.00000000 | | 79M6D7D |
| 1 | 1 | 11325.00000000 | | 79M6D7D |
| 1 | 1 | 11325.00000000 | | 79M6D7D |
| 1 | 2 | 11325.00000000 | | 79M6D7D |
| 1 | 2 | 11325.00000000 | | 79M6D7D |
| 1 | 2 | 11325.00000000 | | 79M6D7D |
| 1 | 2 | 11325.00000000 | | 79M6D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 8922 N Holland Rd, Scales Mound, JO DAVIESS, IL | 42.50100000, -90.20419444 | 325.000 m | SILO | 33.000 m structure / 34.000 m overall | |
| 2 | R | | 42.44611111, -90.15322222 | 285.500 m | | | |
| 3 | R | | 42.47566667, -90.25583333 | 303.900 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | V | 35.0000 | 145.6000 | | |
| 1 | 2 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 1 | 3 | R | UBIQUITI NETWORKS AF-11G35 | | | 35.0000 | | | |
| 2 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | H | 35.0000 | 145.6000 | | |
| 2 | 2 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 3 | 1 | T | UBIQUITI NETWORKS AF-11G35 | | S | 35.0000 | 236.5000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2020-09-23 | WRDB684 | LIMOD |
| 2020-06-23 | WRDB684 | LETCNS |
| 2019-03-20 | WRDB684 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4136227 | 2026-08-02 02:44:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB684 | ULS 4136227 | 2026-08-02 02:44:28 |
| Status | A | ULS 4136227 | 2026-08-02 02:44:28 |
| Service | MG | ULS 4136227 | 2026-08-02 02:44:28 |
| Grant Date | 2019-03-20 | ULS 4136227 | 2026-08-02 02:44:28 |
| Expiration Date | 2029-03-20 | ULS 4136227 | 2026-08-02 02:44:28 |