Universal Licensing System
WRDU600
Communications Direct Inc
License details
| ULS identifier | 4182251 |
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| Call sign | WRDU600 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2019-07-23 |
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| Expiration | 2019-08-08 |
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| Cancellation | 2019-10-12 |
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| Frequency range | 452.3125 - 457.9875 MHz (8 frequencies) |
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| Locations | 2 |
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| Representative location | Fontana, SAN BERNARDINO, CA |
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| Coordinates | 34.0862222, -117.4947500 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:51 |
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Licensee
| Name | Communications Direct Inc |
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| Applicant type | C |
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| FRN | 0006721617 |
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| Location | Batavia, IL |
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| Address | 735 Hunter Drive, Unit F, Batavia, IL, 60510 |
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| Phone | 6304065400 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 452.31250000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | MO | 452.31250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 452.41250000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | MO | 452.41250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 452.76250000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | MO | 452.76250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 452.98750000 | | | 10.000000 | 10.000000 | |
| 2 | 1 | MO | 452.98750000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 457.31250000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 457.41250000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 457.76250000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 457.98750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.31250000 | | 7K60F3E |
| 2 | 1 | 452.31250000 | | 7K60F3E |
| 1 | 1 | 452.41250000 | | 7K60F3E |
| 2 | 1 | 452.41250000 | | 7K60F3E |
| 1 | 1 | 452.76250000 | | 7K60FXE |
| 2 | 1 | 452.76250000 | | 7K60F3E |
| 1 | 1 | 452.98750000 | | 7K60F3E |
| 2 | 1 | 452.98750000 | | 7K60F3E |
| 2 | 1 | 457.31250000 | | 7K60F3E |
| 2 | 1 | 457.41250000 | | 7K60F3E |
| 2 | 1 | 457.76250000 | | 7K60F3E |
| 2 | 1 | 457.98750000 | | 7K60F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9300 Cherry Ave, Fontana, SAN BERNARDINO, CA | 34.08622222, -117.49475000 | 342.000 m | B | 11.000 m structure / 11.000 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | -76.700 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 735 Hunter Drive, Unit F, Batavia, IL | KANE | 6304065400 |
Special conditions
| Type | Condition code |
|---|
| P | 5004 |
| T | 1003 |
License history
| Date | File or call sign | Action |
|---|
| 2019-10-12 | WRDU600 | LIEXP |
| 2019-07-23 | WRDU600 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4182251 | 2026-08-02 01:16:51 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU600 | ULS 4182251 | 2026-08-02 01:16:51 |
| Status | E | ULS 4182251 | 2026-08-02 01:16:51 |
| Service | IG | ULS 4182251 | 2026-08-02 01:16:51 |
| Grant Date | 2019-07-23 | ULS 4182251 | 2026-08-02 01:16:51 |
| Expiration Date | 2019-08-08 | ULS 4182251 | 2026-08-02 01:16:51 |
| Cancellation Date | 2019-10-12 | ULS 4182251 | 2026-08-02 01:16:51 |