Universal Licensing System
WRDB686
Computer Dynamics of NW Illinois LLC
License details
| ULS identifier | 4136229 |
|---|
| Call sign | WRDB686 |
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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 | 10755 - 11565 MHz (2 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | Gratiot, LAFAYETTE, WI |
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| Coordinates | 42.5148333, -90.0779722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:44:36 |
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Licensee
| Name | Computer Dynamics of NW Illinois LLC |
|---|
| 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 | 10755.00000000 | | | | | |
| 1 | 3 | FXO | 10755.00000000 | | | | | |
| 1 | 3 | FXO | 10755.00000000 | | | | | |
| 1 | 3 | FXO | 10755.00000000 | | | | | |
| 1 | 4 | FXO | 10755.00000000 | | | | | |
| 1 | 4 | FXO | 10755.00000000 | | | | | |
| 1 | 4 | FXO | 10755.00000000 | | | | | |
| 1 | 4 | FXO | 10755.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 2 | FXO | 11565.00000000 | | | | | |
| 1 | 2 | FXO | 11565.00000000 | | | | | |
| 1 | 2 | FXO | 11565.00000000 | | | | | |
| 1 | 2 | FXO | 11565.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 3 | 10755.00000000 | | 79M6D7D |
| 1 | 3 | 10755.00000000 | | 79M6D7D |
| 1 | 3 | 10755.00000000 | | 79M6D7D |
| 1 | 3 | 10755.00000000 | | 79M6D7D |
| 1 | 4 | 10755.00000000 | | 79M6D7D |
| 1 | 4 | 10755.00000000 | | 79M6D7D |
| 1 | 4 | 10755.00000000 | | 79M6D7D |
| 1 | 4 | 10755.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 2 | 11565.00000000 | | 79M6D7D |
| 1 | 2 | 11565.00000000 | | 79M6D7D |
| 1 | 2 | 11565.00000000 | | 79M6D7D |
| 1 | 2 | 11565.00000000 | | 79M6D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2882 County Rd W, Gratiot, LAFAYETTE, WI | 42.51483333, -90.07797222 | 319.700 m | SILO | 39.000 m structure / 40.000 m overall | |
| 2 | R | | 42.51336111, -90.03566667 | 311.900 m | | | |
| 3 | R | | 42.49497222, -90.13925000 | 335.900 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 | 92.7000 | | |
| 1 | 2 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 1 | 3 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 2 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | H | 35.0000 | 92.7000 | | |
| 2 | 2 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 2 | 3 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 3 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | V | 35.0000 | 246.3000 | | |
| 4 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | H | 35.0000 | 246.3000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2019-03-20 | WRDB686 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4136229 | 2026-08-02 02:44:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB686 | ULS 4136229 | 2026-08-02 02:44:36 |
| Status | A | ULS 4136229 | 2026-08-02 02:44:36 |
| Service | MG | ULS 4136229 | 2026-08-02 02:44:36 |
| Grant Date | 2019-03-20 | ULS 4136229 | 2026-08-02 02:44:36 |
| Expiration Date | 2029-03-20 | ULS 4136229 | 2026-08-02 02:44:36 |