Universal Licensing System
KNKC281
AMS Spectrum Holdings, LLC
License details
| ULS identifier | 1584 |
|---|
| Call sign | KNKC281 |
|---|
| Radio service | CD |
|---|
| Status | A |
|---|
| Grant date | 2019-04-02 |
|---|
| Expiration | 2029-04-01 |
|---|
| Frequency range | 158.1 - 459.625 MHz (3 frequencies) |
|---|
| Locations | 4 |
|---|
| Representative location | WATERLOO, BLACK HAWK, IA |
|---|
| Coordinates | 42.4458056, -92.3748889 |
|---|
| Source archive | l_paging.zip |
|---|
| Dataset refreshed | 2026-08-02 02:52:25 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FBBS | 158.10000000 | | | 347.600000 | 500.000000 | |
| 3 | 1 | FBBS | 158.10000000 | | | 146.900000 | 500.000000 | |
| 4 | 1 | FBBS | 158.10000000 | | | 172.200000 | 500.000000 | |
| 1 | 1 | FBBS | 454.62500000 | | | 207.100000 | 500.000000 | |
| 5 | 1 | FXCT | 459.62500000 | | | 25.800000 | 150.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 158.10000000 | | 15K0F2D |
| 1 | 2 | 158.10000000 | | 16K0F1D |
| 1 | 2 | 158.10000000 | | 16K0F3E |
| 3 | 1 | 158.10000000 | | 16K0F1D |
| 3 | 1 | 158.10000000 | | 16K0F3E |
| 3 | 1 | 158.10000000 | | 15K0F2D |
| 4 | 1 | 158.10000000 | | 16K0F1D |
| 4 | 1 | 158.10000000 | | 16K0F3E |
| 4 | 1 | 158.10000000 | | 15K0F2D |
| 1 | 1 | 454.62500000 | | 15K0F2D |
| 1 | 1 | 454.62500000 | | 16K0F3E |
| 1 | 1 | 454.62500000 | | 16K0F1D |
| 5 | 1 | 459.62500000 | | 15K0F2D |
| 5 | 1 | 459.62500000 | | 16K0F1D |
| 5 | 1 | 459.62500000 | | 16K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4813 ANSBOROUGH AVENUE, WATERLOO, BLACK HAWK, IA | 42.44580556, -92.37488889 | 293.200 m | TOWER | 132.500 m structure / 132.500 m overall | N |
| 3 | T | 1825 LOGAN AVENUE, WATERLOO, BLACK HAWK, IA | 42.52719444, -92.33933333 | 272.800 m | BANT | 18.300 m structure / 21.300 m overall | N |
| 4 | T | 2203 EAST BREMER AVENUE, WAVERLY, BREMER, IA | 42.71691667, -92.43822222 | 290.000 m | TOWER | 46.000 m structure / 52.000 m overall | N |
| 5 | T | 3421 WEST 9TH STREET, WATERLOO, BLACK HAWK, IA | 42.46108333, -92.34572222 | 283.500 m | B | 27.400 m structure / 33.500 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | DECI DB-225 | 96.000 m | V | 6.6000 | 30.0000 | | |
| 1 | 3 | T | DECI DB-222E | 21.300 m | V | 6.0000 | 0.0000 | | |
| 1 | 4 | T | DECIBEL DB224 | 52.000 m | V | 5.0000 | 360.0000 | | |
| 1 | 5 | T | | 33.500 m | V | 9.3000 | 0.0000 | | |
| 2 | 1 | T | DECIBEL DB225 | 107.300 m | V | 5.0000 | 0.0000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 750 ANSBOROUGH, WATERLOO, IA | | 3192355556 |
License history
| Date | File or call sign | Action |
|---|
| 2026-07-16 | KNKC281 | LIAUA |
| 2022-03-29 | KNKC281 | LIAUA |
| 2021-06-30 | KNKC281 | LIASS |
| 2020-10-08 | KNKC281 | LIAUA |
| 2019-04-02 | KNKC281 | LIREN |
| 2009-05-05 | KNKC281 | LIREN |
| 2009-01-05 | KNKC281 | LETRES |
| 2004-10-04 | KNKC281 | AUDOPR |
| 2004-09-28 | KNKC281 | LETAUS |
| 2003-09-19 | KNKC281 | LIAUA |
| 2000-04-21 | KNKC281 | COR |
| 2000-04-06 | KNKC281 | COR |
| 2000-01-27 | KNKC281 | COR |
| 1999-11-05 | KNKC281 | LITRAN |
| 1999-07-09 | KNKC281 | COR |
| 1999-04-19 | KNKC281 | COR |
| 1999-04-19 | KNKC281 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1584 | 2026-08-02 02:52:17 | Source Primary |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNKC281 | ULS 1584 | 2026-08-02 02:52:25 |
| Status | A | ULS 1584 | 2026-08-02 02:52:25 |
| Service | CD | ULS 1584 | 2026-08-02 02:52:25 |
| Grant Date | 2019-04-02 | ULS 1584 | 2026-08-02 02:52:25 |
| Expiration Date | 2029-04-01 | ULS 1584 | 2026-08-02 02:52:25 |