Universal Licensing System
WRO404
License details
| ULS identifier | 1833799 |
|---|---|
| Call sign | WRO404 |
| Radio service | IG |
| Status | E |
| Grant date | 2014-11-24 |
| Expiration | 2024-12-04 |
| Cancellation | 2025-02-08 |
| Frequency range | 461.575 - 469.65 MHz (12 frequencies) |
| Locations | 10 |
| Representative location | CLARENCE, CEDAR, IA |
| Coordinates | 41.8891944, -91.0551667 |
| Source archive | l_LMpriv.zip |
| Dataset refreshed | 2026-08-02 01:17:42 |
Licensee
| Name | Graybill Electronics, Inc. |
|---|---|
| Applicant type | C |
| FRN | 0002584092 |
| Location | HIAWATHA, IA |
| Address | 305 Miller Rd., HIAWATHA, IA, 52233 |
| Phone | 3193935456 |
| [email protected] |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 3 | 1 | FB6 | 461.57500000 | 85.000000 | 400.000000 | |||
| 10 | 1 | MO | 461.57500000 | 45.000000 | ||||
| 4 | 1 | FB6 | 461.65000000 | 75.000000 | 400.000000 | |||
| 11 | 1 | MO | 461.65000000 | 45.000000 | ||||
| 1 | 1 | FB6 | 461.85000000 | 30.000000 | 240.000000 | |||
| 8 | 1 | MO | 461.85000000 | 45.000000 | ||||
| 6 | 1 | FB6 | 461.87500000 | 75.000000 | 300.000000 | |||
| 13 | 1 | MO | 461.87500000 | 45.000000 | ||||
| 2 | 1 | FB6 | 463.87500000 | 85.000000 | 400.000000 | |||
| 9 | 1 | MO | 463.87500000 | 45.000000 | ||||
| 5 | 1 | FB6 | 464.65000000 | 30.000000 | 200.000000 | |||
| 12 | 1 | MO | 464.65000000 | 45.000000 | ||||
| 7 | 1 | FX1 | 466.57500000 | 45.000000 | ||||
| 10 | 1 | MO | 466.57500000 | 45.000000 | ||||
| 11 | 1 | MO | 466.65000000 | 45.000000 | ||||
| 7 | 1 | FX1 | 466.85000000 | 45.000000 | ||||
| 8 | 1 | MO | 466.85000000 | 45.000000 | ||||
| 13 | 1 | MO | 466.87500000 | 45.000000 | ||||
| 9 | 1 | MO | 468.87500000 | 45.000000 | ||||
| 12 | 1 | MO | 469.65000000 | 45.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 3 | 1 | 461.57500000 | 11K2F3E | |
| 10 | 1 | 461.57500000 | 11K2F3E | |
| 4 | 1 | 461.65000000 | 11K2F3E | |
| 11 | 1 | 461.65000000 | 11K2F3E | |
| 1 | 1 | 461.85000000 | 11K2F3E | |
| 8 | 1 | 461.85000000 | 11K2F3E | |
| 6 | 1 | 461.87500000 | 11K2F3E | |
| 13 | 1 | 461.87500000 | 11K2F3E | |
| 2 | 1 | 463.87500000 | 11K2F3E | |
| 9 | 1 | 463.87500000 | 11K2F3E | |
| 5 | 1 | 464.65000000 | 11K2F3E | |
| 12 | 1 | 464.65000000 | 11K2F3E | |
| 7 | 1 | 466.57500000 | 11K2F3E | |
| 10 | 1 | 466.57500000 | 11K2F3E | |
| 11 | 1 | 466.65000000 | 11K2F3E | |
| 7 | 1 | 466.85000000 | 11K2F3E | |
| 8 | 1 | 466.85000000 | 11K2F3E | |
| 13 | 1 | 466.87500000 | 11K2F3E | |
| 9 | 1 | 468.87500000 | 11K2F3E | |
| 12 | 1 | 469.65000000 | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | 1.5 MI N .75 MI E, GARRISON, BENTON, IA | 42.15027778, -92.14186111 | 290.000 m | TOWER | 37.000 m structure / 43.000 m overall | N |
| 2 | T | 124 MORLEY RD, MARTELLE, JONES, IA | 42.01777778, -91.30072222 | 284.000 m | SILO | 56.000 m structure / 61.000 m overall | N |
| 3 | T | FARMERS COOP ELEVATOR BLDG, CONROY, IOWA, IA | 41.73000000, -91.99711111 | 267.000 m | SILO | 61.000 m structure / 67.000 m overall | N |
| 4 | T | MAIN ST & HWY 30, CLARENCE, CEDAR, IA | 41.88919444, -91.05516667 | 259.000 m | SILO | 61.000 m structure / 67.000 m overall | N |
| 5 | T | HWY 30 AT W SITY LIMITS, STANWOOD, CEDAR, IA | 41.88808333, -91.14822222 | 256.000 m | SILO | 40.000 m structure / 46.000 m overall | N |
| 6 | T | 1 3/4 MI NW JCT 218 & CR E12, VINTON, BENTON, IA | 42.19527778, -92.06963889 | 290.000 m | TOWER | 31.000 m structure / 34.000 m overall | N |
| 7 | T | IA | |||||
| 8 | T | ||||||
| 9 | T | ||||||
| 10 | T | ||||||
| 11 | T | ||||||
| 12 | T | ||||||
| 13 | T |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | 43.000 m | 0.000 | |||||
| 1 | 2 | T | 61.000 m | 0.000 | |||||
| 1 | 3 | T | 67.000 m | 0.000 | |||||
| 1 | 4 | T | 67.000 m | 66.000 | |||||
| 1 | 5 | T | 46.000 m | 0.000 | |||||
| 1 | 6 | T | 34.000 m | 40.000 | |||||
| 1 | 7 | T | |||||||
| 1 | 8 | T | |||||||
| 1 | 9 | T | |||||||
| 1 | 10 | T | |||||||
| 1 | 11 | T | |||||||
| 1 | 12 | T | |||||||
| 1 | 13 | T |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | 98 EMMONS ST, HIAWATHA, IA | LINN | 3193935456 |
Special conditions
| Type | Condition code |
|---|---|
| P | 5071 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2025-02-08 | WRO404 | LIEXP |
| 2024-09-09 | WRO404 | LETRES |
| 2014-11-24 | WRO404 | LIREN |
| 2014-11-19 | WRO404 | LIMOD |
| 2014-09-08 | WRO404 | LETRES |
| 2011-02-08 | WRO404 | LIMOD |
| 2011-01-03 | WRO404 | ESUAPR |
| 2007-05-04 | WRO404 | LIAUA |
| 2007-05-04 | WRO404 | LTSAPR |
| 2007-05-03 | WRO404 | ESCAPR |
| 2007-05-03 | WRO404 | EFCAPR |
| 2004-10-12 | WRO404 | LTSAPR |
| 2004-10-11 | WRO404 | EFCAPR |
| 2004-10-11 | WRO404 | ESCAPR |
| 2004-09-08 | WRO404 | LETRES |
| 2001-10-16 | WRO404 | AUDOPR |
| 2000-11-23 | WRO404 | LICCNV |
| 1999-11-04 | WRO404 | LIREN |
| 1999-11-04 | WRO404 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 1833799 | 2026-08-02 01:17:42 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | WRO404 | ULS 1833799 | 2026-08-02 01:17:42 |
| Status | E | ULS 1833799 | 2026-08-02 01:17:42 |
| Service | IG | ULS 1833799 | 2026-08-02 01:17:42 |
| Grant Date | 2014-11-24 | ULS 1833799 | 2026-08-02 01:17:42 |
| Expiration Date | 2024-12-04 | ULS 1833799 | 2026-08-02 01:17:42 |
| Cancellation Date | 2025-02-08 | ULS 1833799 | 2026-08-02 01:17:42 |