Universal Licensing System
WRKN639
Grand Mound Cooperative Telephone
License details
| ULS identifier | 4379315 |
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| Call sign | WRKN639 |
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| Radio service | MG |
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| Status | A |
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| Grant date | 2021-01-25 |
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| Expiration | 2031-01-25 |
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| Frequency range | 11565 MHz |
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| Locations | 2 |
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| Representative location | DeWitt, CLINTON, IA |
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| Coordinates | 41.8171111, -90.3640833 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:48:14 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 11565.00000000 | | 80M0D7W |
| 1 | 1 | 11565.00000000 | | 80M0D7W |
| 1 | 1 | 11565.00000000 | | 80M0D7W |
| 1 | 1 | 11565.00000000 | | 80M0D7W |
| 1 | 1 | 11565.00000000 | | 80M0D7W |
| 1 | 1 | 11565.00000000 | | 80M0D7W |
| 1 | 1 | 11565.00000000 | | 80M0G7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3750 Highway 30, DeWitt, CLINTON, IA | 41.81711111, -90.36408333 | 203.000 m | SILO | 110.000 m structure / 110.000 m overall | |
| 2 | R | | 41.82527778, -90.53888889 | 222.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RADIO WAVES INC. HP3-11 | | V | 38.5000 | 273.6000 | | |
| 1 | 2 | R | RADIO WAVES INC. HP3-11 | | | 38.5000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2021-01-25 | WRKN639 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4379315 | 2026-08-02 02:48:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKN639 | ULS 4379315 | 2026-08-02 02:48:14 |
| Status | A | ULS 4379315 | 2026-08-02 02:48:14 |
| Service | MG | ULS 4379315 | 2026-08-02 02:48:14 |
| Grant Date | 2021-01-25 | ULS 4379315 | 2026-08-02 02:48:14 |
| Expiration Date | 2031-01-25 | ULS 4379315 | 2026-08-02 02:48:14 |