Universal Licensing System
WSIY397
Mammoth Mountain Ski Area, LLC
License details
| ULS identifier | 5159197 |
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| Call sign | WSIY397 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-07-02 |
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| Expiration | 2035-07-02 |
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| Frequency range | 451.3 - 456.5 MHz (5 frequencies) |
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| Locations | 3 |
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| Representative location | Mammoth Lakes, MONO, CA |
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| Coordinates | 37.6500000, -118.9869444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:03 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.30000000 | | | 50.000000 | 50.000000 | |
| 2 | 1 | MO | 451.30000000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 451.82500000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 452.97500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 456.30000000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 456.50000000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.30000000 | | 11K2F3E |
| 2 | 1 | 451.30000000 | | 11K2F3E |
| 3 | 1 | 451.82500000 | | 11K2F3E |
| 3 | 1 | 452.97500000 | | 11K2F3E |
| 2 | 1 | 456.30000000 | | 11K2F3E |
| 3 | 1 | 456.50000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 100 Canyon Blvd, Mammoth Lakes, MONO, CA | 37.65000000, -118.98694444 | 2469.000 m | B | 18.200 m structure / 18.200 m overall | |
| 2 | T | | | | | | |
| 3 | T | 100 Canyon Blvd, MONO, CA | 37.65000000, -118.98694444 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 18.200 m | | | | -92.200 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 100 Canyon Blvd, Mono, CA | | 7609342571 |
License history
| Date | File or call sign | Action |
|---|
| 2026-03-31 | WSIY397 | LETCNS |
| 2025-07-02 | WSIY397 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5159197 | 2026-08-02 01:14:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSIY397 | ULS 5159197 | 2026-08-02 01:14:03 |
| Status | A | ULS 5159197 | 2026-08-02 01:14:03 |
| Service | IG | ULS 5159197 | 2026-08-02 01:14:03 |
| Grant Date | 2025-07-02 | ULS 5159197 | 2026-08-02 01:14:03 |
| Expiration Date | 2035-07-02 | ULS 5159197 | 2026-08-02 01:14:03 |