Universal Licensing System
WQRR550
MARTIN MARIETTA AGGREGATES
License details
| ULS identifier | 3494627 |
|---|
| Call sign | WQRR550 |
|---|
| Radio service | IG |
|---|
| Status | A |
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| Grant date | 2023-04-18 |
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| Expiration | 2033-07-15 |
|---|
| Frequency range | 451.05 - 456.5375 MHz (7 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | ALDEN, HARDIN, IA |
|---|
| Coordinates | 42.5138333, -93.3644722 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-09 03:02:45 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB2 | 451.05000000 | | | 45.000000 | 60.000000 | |
| 1 | 1 | MO | 451.36250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.53750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.58750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.11250000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 456.05000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.53750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.05000000 | | 7K60F3E |
| 2 | 1 | 451.05000000 | | 11K0F3E |
| 1 | 1 | 451.36250000 | | 11K2F3E |
| 1 | 1 | 451.36250000 | | 7K60FXE |
| 1 | 1 | 451.53750000 | | 11K2F3E |
| 1 | 1 | 451.53750000 | | 7K60FXE |
| 1 | 1 | 451.58750000 | | 7K60FXE |
| 1 | 1 | 451.58750000 | | 11K2F3E |
| 1 | 1 | 452.11250000 | | 11K2F3E |
| 1 | 1 | 452.11250000 | | 7K60FXE |
| 3 | 1 | 456.05000000 | | 7K60F3E |
| 3 | 1 | 456.05000000 | | 11K0F3E |
| 1 | 1 | 456.53750000 | | 11K2F3E |
| 1 | 1 | 456.53750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | IOWA FALLS, HARDIN, IA | 42.51444444, -93.35750000 | | | | |
| 2 | T | 13144 G AVE, ALDEN, HARDIN, IA | 42.51383333, -93.36447222 | 354.800 m | BANT | 9.100 m structure / 12.100 m overall | N |
| 3 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 12.100 m | | | | 354.800 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 17243 CNTY HWY D20, IOWA FALLS, IA | HARDIN | 5158593355 |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-25 | WQRR550 | LIMOD |
| 2023-04-18 | WQRR550 | LIREN |
| 2021-04-27 | WQRR550 | LETCNS |
| 2020-07-27 | WQRR550 | LIMOD |
| 2013-07-15 | WQRR550 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3494627 | 2026-08-09 03:02:45 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQRR550 | ULS 3494627 | 2026-08-09 03:02:45 |
| Status | A | ULS 3494627 | 2026-08-09 03:02:45 |
| Service | IG | ULS 3494627 | 2026-08-09 03:02:45 |
| Grant Date | 2023-04-18 | ULS 3494627 | 2026-08-09 03:02:45 |
| Expiration Date | 2033-07-15 | ULS 3494627 | 2026-08-09 03:02:45 |