Universal Licensing System
WRDB870
Computer Dynamics of NW Illinois LLC
License details
| ULS identifier | 4136865 |
|---|
| Call sign | WRDB870 |
|---|
| Radio service | MG |
|---|
| Status | A |
|---|
| Grant date | 2019-03-22 |
|---|
| Expiration | 2029-03-22 |
|---|
| Frequency range | 10755 - 11075 MHz (3 frequencies) |
|---|
| Locations | 2 |
|---|
| Coordinates | 42.5148333, -90.0779722 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:44:27 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 3 | FXO | 10755.00000000 | | | | | |
| 1 | 4 | FXO | 10755.00000000 | | | | | |
| 1 | 5 | FXO | 10995.00000000 | | | | | |
| 1 | 5 | FXO | 10995.00000000 | | | | | |
| 1 | 5 | FXO | 10995.00000000 | | | | | |
| 1 | 5 | FXO | 10995.00000000 | | | | | |
| 1 | 1 | FXO | 11075.00000000 | | | | | |
| 1 | 1 | FXO | 11075.00000000 | | | | | |
| 1 | 1 | FXO | 11075.00000000 | | | | | |
| 1 | 1 | FXO | 11075.00000000 | | | | | |
| 1 | 2 | FXO | 11075.00000000 | | | | | |
| 1 | 2 | FXO | 11075.00000000 | | | | | |
| 1 | 2 | FXO | 11075.00000000 | | | | | |
| 1 | 2 | FXO | 11075.00000000 | | | | | |
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 | 5 | 10995.00000000 | | 79M3D7D |
| 1 | 5 | 10995.00000000 | | 79M3D7D |
| 1 | 5 | 10995.00000000 | | 79M3D7D |
| 1 | 5 | 10995.00000000 | | 79M3D7D |
| 1 | 1 | 11075.00000000 | | 79M6D7D |
| 1 | 1 | 11075.00000000 | | 79M6D7D |
| 1 | 1 | 11075.00000000 | | 79M6D7D |
| 1 | 1 | 11075.00000000 | | 79M6D7D |
| 1 | 2 | 11075.00000000 | | 79M6D7D |
| 1 | 2 | 11075.00000000 | | 79M6D7D |
| 1 | 2 | 11075.00000000 | | 79M6D7D |
| 1 | 2 | 11075.00000000 | | 79M6D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 11018 County Rd. W, Gratiot, LAFAYETTE, WI | 42.51336111, -90.03566667 | 311.800 m | SILO | 39.000 m structure / 40.000 m overall | |
| 2 | R | | 42.51483333, -90.07797222 | 319.700 m | | | |
| 3 | R | | 42.48461111, -89.98688889 | 304.400 m | | | |
| 4 | R | | 42.55200000, -89.98425000 | 295.600 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 | 272.7000 | | |
| 1 | 2 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 1 | 3 | R | Ubiquiti Networks, Inc. AF-11G35 | | | 35.0000 | | | |
| 1 | 4 | R | UBIQUITI NETWORKS AF-11G35 | | | 35.0000 | | | |
| 2 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | H | 35.0000 | 272.7000 | | |
| 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 | 128.6000 | | |
| 4 | 1 | T | Ubiquiti Networks, Inc. AF-11G35 | | H | 35.0000 | 128.6000 | | |
| 5 | 1 | T | UBIQUITI NETWORKS AF-11G35 | | S | 35.0000 | 44.5000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2023-01-04 | WRDB870 | LETCNS |
| 2021-10-01 | WRDB870 | LIMOD |
| 2019-03-22 | WRDB870 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4136865 | 2026-08-02 02:44:27 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB870 | ULS 4136865 | 2026-08-02 02:44:27 |
| Status | A | ULS 4136865 | 2026-08-02 02:44:27 |
| Service | MG | ULS 4136865 | 2026-08-02 02:44:27 |
| Grant Date | 2019-03-22 | ULS 4136865 | 2026-08-02 02:44:27 |
| Expiration Date | 2029-03-22 | ULS 4136865 | 2026-08-02 02:44:27 |