Universal Licensing System
KNIW497
IOWA, STATE OF, DOT
License details
| ULS identifier | 1287880 |
|---|
| Call sign | KNIW497 |
|---|
| Radio service | PW |
|---|
| Status | C |
|---|
| Grant date | 2015-08-11 |
|---|
| Expiration | 2025-07-25 |
|---|
| Cancellation | 2025-05-08 |
|---|
| Frequency range | 151.175 - 153.845 MHz (2 frequencies) |
|---|
| Locations | 4 |
|---|
| Representative location | HUXLEY, STORY, IA |
|---|
| Coordinates | 41.9191667, -93.5716111 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:11:29 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2C | 151.17500000 | | | 100.000000 | 210.000000 | |
| 4 | 1 | MO | 151.17500000 | | | 50.000000 | 100.000000 | |
| 2 | 1 | FX1 | 153.84500000 | | | 25.000000 | 40.000000 | |
| 3 | 1 | FX1 | 153.84500000 | | | 25.000000 | 40.000000 | |
| 4 | 1 | MO | 153.84500000 | | | 50.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 151.17500000 | | 11K3F3E |
| 1 | 1 | 151.17500000 | | 11K3F1D |
| 1 | 1 | 151.17500000 | | 11K3F1E |
| 4 | 1 | 151.17500000 | | 11K3F1E |
| 4 | 1 | 151.17500000 | | 11K3F1D |
| 4 | 1 | 151.17500000 | | 11K3F3E |
| 2 | 1 | 153.84500000 | | 11K3F3E |
| 2 | 1 | 153.84500000 | | 11K3F1E |
| 2 | 1 | 153.84500000 | | 11K3F1D |
| 3 | 1 | 153.84500000 | | 11K3F1E |
| 3 | 1 | 153.84500000 | | 11K3F3E |
| 3 | 1 | 153.84500000 | | 11K3F1D |
| 4 | 1 | 153.84500000 | | 11K3F1D |
| 4 | 1 | 153.84500000 | | 11K3F1E |
| 4 | 1 | 153.84500000 | | 11K3F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 14 KM S OF US 30 ON I35 AT SCALE, HUXLEY, STORY, IA | 41.91916667, -93.57161111 | 290.000 m | TOWER | 55.000 m structure / 61.000 m overall | N |
| 2 | T | 100 EUCLID AVE, DES MOINES, POLK, IA | 41.62833333, -93.61938889 | 256.000 m | TOWER | 13.000 m structure / 16.000 m overall | N |
| 3 | T | 800 LINCOLN WAY, AMES, STORY, IA | 42.01972222, -93.62216667 | 274.000 m | TOWER | 18.000 m structure / 21.000 m overall | N |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 61.000 m | | | | 57.000 | |
| 1 | 2 | T | | 16.000 m | | | | -14.000 | |
| 1 | 3 | T | | 21.000 m | | | | 9.000 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 800 LINCOLN WAY, AMES, IA | | 5152391025 |
Special conditions
| Type | Condition code |
|---|
| P | 4020 |
| P | 5071 |
License history
| Date | File or call sign | Action |
|---|
| 2025-05-09 | KNIW497 | LICAN |
| 2025-04-28 | KNIW497 | LETRES |
| 2015-08-28 | KNIW497 | LIMOD |
| 2015-08-11 | KNIW497 | LIREN |
| 2015-08-05 | KNIW497 | ESUAPR |
| 2015-06-28 | KNIW497 | ESUAPR |
| 2015-06-25 | KNIW497 | ESURNW |
| 2015-05-26 | KNIW497 | ESURNW |
| 2015-05-04 | KNIW497 | LETRES |
| 2015-04-26 | KNIW497 | ESURNW |
| 2005-04-27 | KNIW497 | LIREN |
| 2005-04-26 | KNIW497 | ESCAPR |
| 2002-01-15 | KNIW497 | AUDOPR |
| 2000-10-20 | KNIW497 | LICCNV |
| 2000-07-25 | KNIW497 | LIRMD |
| 2000-07-25 | KNIW497 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1287880 | 2026-08-02 01:11:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNIW497 | ULS 1287880 | 2026-08-02 01:11:29 |
| Status | C | ULS 1287880 | 2026-08-02 01:11:29 |
| Service | PW | ULS 1287880 | 2026-08-02 01:11:29 |
| Grant Date | 2015-08-11 | ULS 1287880 | 2026-08-02 01:11:29 |
| Expiration Date | 2025-07-25 | ULS 1287880 | 2026-08-02 01:11:29 |
| Cancellation Date | 2025-05-08 | ULS 1287880 | 2026-08-02 01:11:29 |