Universal Licensing System
WRFJ371
CRYSTAL DISTRIBUTION SERVICES
License details
| ULS identifier | 4261680 |
|---|
| Call sign | WRFJ371 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2020-03-14 |
|---|
| Expiration | 2030-03-14 |
|---|
| Frequency range | 452.8375 - 452.9875 MHz (2 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | WATERLOO, BLACK HAWK, IA |
|---|
| Coordinates | 42.4919722, -92.3251111 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:17:04 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 452.83750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.98750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.83750000 | | 11K2F3E |
| 1 | 1 | 452.98750000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1442 SYCAMORE ST, WATERLOO, BLACK HAWK, IA | 42.49197222, -92.32511111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1442 SYCAMORE ST, WATERLOO, IA | BLACK HAWK | 3192346606 |
License history
| Date | File or call sign | Action |
|---|
| 2021-04-26 | WRFJ371 | FRATRE |
| 2021-04-21 | WRFJ371 | LETTRS |
| 2021-04-21 | WRFJ371 | PNLISR |
| 2020-12-15 | WRFJ371 | LETCNS |
| 2020-03-14 | WRFJ371 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4261680 | 2026-08-02 01:17:04 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRFJ371 | ULS 4261680 | 2026-08-02 01:17:04 |
| Status | A | ULS 4261680 | 2026-08-02 01:17:04 |
| Service | IG | ULS 4261680 | 2026-08-02 01:17:04 |
| Grant Date | 2020-03-14 | ULS 4261680 | 2026-08-02 01:17:04 |
| Expiration Date | 2030-03-14 | ULS 4261680 | 2026-08-02 01:17:04 |