Universal Licensing System
WPMY251
CHICAGO TWO WAY INC
License details
| ULS identifier | 1803076 |
|---|
| Call sign | WPMY251 |
|---|
| Radio service | IG |
|---|
| Status | A |
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| Grant date | 2024-02-08 |
|---|
| Expiration | 2034-03-24 |
|---|
| Frequency range | 451.375 - 457.825 MHz (6 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | CHICAGO, COOK, IL |
|---|
| Coordinates | 41.8789167, -87.6361667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:46 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 451.37500000 | | | 100.000000 | 57.000000 | |
| 3 | 1 | MO | 451.37500000 | | | 50.000000 | | |
| 1 | 1 | FB6 | 451.95000000 | | | 100.000000 | 57.000000 | |
| 3 | 1 | MO | 451.95000000 | | | 50.000000 | | |
| 1 | 1 | FB6 | 452.82500000 | | | 100.000000 | 57.000000 | |
| 3 | 1 | MO | 452.82500000 | | | 50.000000 | | |
| 2 | 1 | FX1 | 456.37500000 | | | 25.000000 | | |
| 3 | 1 | MO | 456.37500000 | | | 50.000000 | | |
| 2 | 1 | FX1 | 456.95000000 | | | 25.000000 | | |
| 3 | 1 | MO | 456.95000000 | | | 50.000000 | | |
| 2 | 1 | FX1 | 457.82500000 | | | 25.000000 | | |
| 3 | 1 | MO | 457.82500000 | | | 50.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.37500000 | | 11K2F3E |
| 3 | 1 | 451.37500000 | | 11K2F3E |
| 1 | 1 | 451.95000000 | | 11K2F3E |
| 3 | 1 | 451.95000000 | | 11K2F3E |
| 1 | 1 | 452.82500000 | | 11K2F3E |
| 3 | 1 | 452.82500000 | | 11K2F3E |
| 2 | 1 | 456.37500000 | | 11K2F3E |
| 3 | 1 | 456.37500000 | | 11K2F3E |
| 2 | 1 | 456.95000000 | | 11K2F3E |
| 3 | 1 | 456.95000000 | | 11K2F3E |
| 2 | 1 | 457.82500000 | | 11K2F3E |
| 3 | 1 | 457.82500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SEARS TOWER 233 S WACKER DR, CHICAGO, COOK, IL | 41.87891667, -87.63616667 | 181.000 m | TOWER | 436.000 m structure / 436.000 m overall | N |
| 2 | T | IL | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 367.000 m | | | | 368.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 3147 S ARCHER AVE, CHICAGO, IL | | 7735791055 |
| 2 | 233 S Wacker Dr, Chicago, IL | COOK | 7086569785 |
License history
| Date | File or call sign | Action |
|---|
| 2024-02-08 | WPMY251 | LIREN |
| 2019-07-09 | WPMY251 | LIMOD |
| 2014-02-27 | WPMY251 | LIREN |
| 2013-12-30 | WPMY251 | LETRES |
| 2003-12-29 | WPMY251 | LETRES |
| 2001-10-05 | WPMY251 | AUDOPR |
| 2000-11-23 | WPMY251 | LICCNV |
| 1999-03-24 | WPMY251 | AUTHPR |
| 1999-03-24 | WPMY251 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1803076 | 2026-08-02 01:16:46 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMY251 | ULS 1803076 | 2026-08-02 01:16:46 |
| Status | A | ULS 1803076 | 2026-08-02 01:16:46 |
| Service | IG | ULS 1803076 | 2026-08-02 01:16:46 |
| Grant Date | 2024-02-08 | ULS 1803076 | 2026-08-02 01:16:46 |
| Expiration Date | 2034-03-24 | ULS 1803076 | 2026-08-02 01:16:46 |