Universal Licensing System
KDU231
ROLLA, CITY OF
License details
| ULS identifier | 1285607 |
|---|
| Call sign | KDU231 |
|---|
| Radio service | PW |
|---|
| Status | A |
|---|
| Grant date | 2023-09-09 |
|---|
| Expiration | 2033-10-08 |
|---|
| Frequency range | 153.83 - 460.575 MHz (7 frequencies) |
|---|
| Locations | 1 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:10:24 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 4 | 1 | MO | 153.83000000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB | 154.28000000 | | | 100.000000 | 224.000000 | |
| 1 | 2 | FB | 154.28000000 | | | 100.000000 | 232.000000 | |
| 2 | 1 | FB | 154.28000000 | | | 100.000000 | 265.000000 | |
| 3 | 1 | FB | 154.28000000 | | | 100.000000 | 155.000000 | |
| 4 | 1 | MO | 154.28000000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB | 154.32500000 | | | 100.000000 | 224.000000 | |
| 1 | 2 | FB | 154.32500000 | | | 100.000000 | 232.000000 | |
| 2 | 1 | FB | 154.32500000 | | | 100.000000 | 265.000000 | |
| 3 | 1 | FB | 154.32500000 | | | 100.000000 | 155.000000 | |
| 4 | 1 | MO | 154.32500000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB | 154.41500000 | | | 100.000000 | 224.000000 | |
| 1 | 2 | FB | 154.41500000 | | | 100.000000 | 232.000000 | |
| 2 | 1 | FB | 154.41500000 | | | 100.000000 | 265.000000 | |
| 3 | 1 | FB | 154.41500000 | | | 100.000000 | 155.000000 | |
| 4 | 1 | MO | 154.41500000 | | | 100.000000 | 100.000000 | |
| 1 | 1 | FB2 | 155.22000000 | | | 45.000000 | 75.000000 | |
| 1 | 3 | FB | 155.22000000 | | | 100.000000 | 150.000000 | |
| 4 | 1 | MO | 155.22000000 | | | 45.000000 | 45.000000 | |
| 4 | 1 | MO | 159.03000000 | | | 45.000000 | 45.000000 | |
| 4 | 1 | MO | 460.57500000 | | | 2.000000 | 2.000000 | |
| 4 | 1 | MO3 | 460.57500000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 4 | 1 | 153.83000000 | | 11K2F3E |
| 1 | 1 | 154.28000000 | | 11K2F3E |
| 1 | 2 | 154.28000000 | | 11K2F3E |
| 2 | 1 | 154.28000000 | | 11K2F3E |
| 3 | 1 | 154.28000000 | | 11K2F3E |
| 4 | 1 | 154.28000000 | | 11K2F3E |
| 1 | 1 | 154.32500000 | | 11K2F3E |
| 1 | 2 | 154.32500000 | | 11K2F3E |
| 2 | 1 | 154.32500000 | | 11K2F3E |
| 3 | 1 | 154.32500000 | | 11K2F3E |
| 4 | 1 | 154.32500000 | | 11K2F3E |
| 1 | 1 | 154.41500000 | | 11K2F3E |
| 1 | 2 | 154.41500000 | | 11K2F3E |
| 2 | 1 | 154.41500000 | | 11K2F3E |
| 3 | 1 | 154.41500000 | | 11K2F3E |
| 4 | 1 | 154.41500000 | | 11K2F3E |
| 1 | 1 | 155.22000000 | | 11K2F3E |
| 1 | 3 | 155.22000000 | | 11K2F3E |
| 4 | 1 | 155.22000000 | | 11K2F3E |
| 4 | 1 | 159.03000000 | | 11K2F3E |
| 4 | 1 | 460.57500000 | | 11K2F3E |
| 4 | 1 | 460.57500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1007 N ELM ST, ROLLA, PHELPS, MO | 37.95169444, -91.77211111 | 343.000 m | TOWER | 60.000 m structure / 61.000 m overall | N |
| 2 | T | 400 W 4TH ST, ROLLA, PHELPS, MO | 37.94725000, -91.77405556 | 336.000 m | TOWER | 12.000 m structure / 13.000 m overall | N |
| 3 | T | 1490 E 10TH ST, ROLLA, PHELPS, MO | 37.95116667, -91.74600000 | 317.000 m | BANT | 12.000 m structure / 13.000 m overall | N |
| 4 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 43.000 m | | | | 85.100 | |
| 1 | 2 | T | | 13.000 m | | | | 51.000 | |
| 1 | 3 | T | | 13.000 m | | | | 27.000 | |
| 1 | 4 | T | | | | | | | |
| 2 | 1 | T | | 59.000 m | | | | 106.000 | |
| 3 | 1 | | | 53.300 m | | | | 95.500 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 200 N MAIN STREET, ROLLA, MO | PHELPS | 5733641213 |
License history
| Date | File or call sign | Action |
|---|
| 2023-09-09 | KDU231 | LIREN |
| 2023-08-09 | KDU231 | ESURNW |
| 2023-07-17 | KDU231 | LETRES |
| 2023-07-10 | KDU231 | ESURNW |
| 2021-04-29 | KDU231 | LIAUA |
| 2016-10-17 | KDU231 | LIMOD |
| 2013-07-26 | KDU231 | LIREN |
| 2013-07-25 | KDU231 | ESCAPR |
| 2013-07-15 | KDU231 | LETRES |
| 2007-07-24 | KDU231 | LETCNS |
| 2006-10-26 | KDU231 | LIMOD |
| 2005-03-28 | KDU231 | LETCNS |
| 2004-11-02 | KDU231 | LIMOD |
| 2004-06-29 | KDU231 | LIMOD |
| 2003-09-11 | KDU231 | LIREN |
| 2003-07-14 | KDU231 | LETRES |
| 2002-06-17 | KDU231 | AUDOPR |
| 2000-10-20 | KDU231 | LICCNV |
| 1998-10-08 | KDU231 | LIRMD |
| 1998-10-08 | KDU231 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1285607 | 2026-08-02 01:10:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KDU231 | ULS 1285607 | 2026-08-02 01:10:24 |
| Status | A | ULS 1285607 | 2026-08-02 01:10:24 |
| Service | PW | ULS 1285607 | 2026-08-02 01:10:24 |
| Grant Date | 2023-09-09 | ULS 1285607 | 2026-08-02 01:10:24 |
| Expiration Date | 2033-10-08 | ULS 1285607 | 2026-08-02 01:10:24 |