Universal Licensing System
WPRU488
Crystal SMR Inc
License details
| ULS identifier | 1942274 |
|---|
| Call sign | WPRU488 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2021-02-02 |
|---|
| Expiration | 2031-02-01 |
|---|
| Frequency range | 466.55 - 468.625 MHz (2 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | MIDDLETOWN, LAKE, CA |
|---|
| Coordinates | 38.8082500, -122.7375000 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 461.55000000 | | | 60.000000 | 9.000000 | |
| 1 | 1 | FB6 | 461.75000000 | | | 60.000000 | 9.000000 | |
| 1 | 1 | FB6 | 461.85000000 | | | 60.000000 | 9.000000 | |
| 1 | 1 | FB6 | 463.62500000 | | | 60.000000 | 9.000000 | |
| 2 | 1 | MO | 466.55000000 | | | 25.000000 | 60.000000 | |
| 2 | 1 | MO | 466.75000000 | | | 25.000000 | 60.000000 | |
| 2 | 1 | MO | 466.85000000 | | | 25.000000 | 60.000000 | |
| 2 | 1 | MO | 468.62500000 | | | 25.000000 | 60.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.55000000 | | 11K2F3E |
| 1 | 1 | 461.75000000 | | 11K2F3E |
| 1 | 1 | 461.85000000 | | 11K2F3E |
| 1 | 1 | 463.62500000 | | 11K2F3E |
| 2 | 1 | 466.55000000 | | 11K2F3E |
| 2 | 1 | 466.75000000 | | 11K2F3E |
| 2 | 1 | 466.85000000 | | 11K2F3E |
| 2 | 1 | 468.62500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | COBB MOUNTAIN, MIDDLETOWN, LAKE, CA | 38.80825000, -122.73750000 | 1436.000 m | TOWER | 24.000 m structure / 24.000 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 24.000 m | | | | 914.000 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 140 Johnson Drive, Windsor, CA | SONOMA | 7075458300 |
License history
| Date | File or call sign | Action |
|---|
| 2025-01-30 | WPRU488 | COR |
| 2025-01-30 | WPRU488 | LIASS |
| 2021-02-02 | WPRU488 | LIREN |
| 2020-11-09 | WPRU488 | LETRES |
| 2011-03-24 | WPRU488 | AUTHPR |
| 2011-02-02 | WPRU488 | LTSAPR |
| 2011-02-01 | WPRU488 | LIREN |
| 2010-11-08 | WPRU488 | LETRES |
| 2001-10-11 | WPRU488 | AUDOPR |
| 2001-02-01 | WPRU488 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1942274 | 2026-08-02 01:14:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPRU488 | ULS 1942274 | 2026-08-02 01:14:20 |
| Status | A | ULS 1942274 | 2026-08-02 01:14:20 |
| Service | IG | ULS 1942274 | 2026-08-02 01:14:20 |
| Grant Date | 2021-02-02 | ULS 1942274 | 2026-08-02 01:14:20 |
| Expiration Date | 2031-02-01 | ULS 1942274 | 2026-08-02 01:14:20 |