Universal Licensing System
WPMM808
INVESTIGATIVE VISUAL SERVICES INC
License details
| ULS identifier | 1797318 |
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| Call sign | WPMM808 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1998-09-23 |
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| Expiration | 2003-09-23 |
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| Cancellation | 2003-11-23 |
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| Frequency range | 452.3 - 462.5 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | DUPAGE, IL |
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| Coordinates | 41.7694722, -88.1117222 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:45 |
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Licensee
| Name | INVESTIGATIVE VISUAL SERVICES INC |
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| Applicant type | C |
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| Location | NAPERVILLE, IL |
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| Address | 1212 NAPER BLVD., SUITE 119, NAPERVILLE, IL, 60540 |
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| Phone | 6303934169 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | MO | 452.30000000 | | | 5.000000 | | |
| 1 | 1 | MO | 462.50000000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.30000000 | | 20K0F3E |
| 1 | 1 | 462.50000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DUPAGE, IL | 41.76947222, -88.11172222 | | | | |
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 |
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| 1 | 1212 NAPER BLVD., SUITE 119, NAPERVILLE, IL | | 6303934169 |
License history
| Date | File or call sign | Action |
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| 2003-11-23 | WPMM808 | LIEXP |
| 2003-06-30 | WPMM808 | LETRES |
| 2002-12-13 | WPMM808 | AUDOPR |
| 2000-11-23 | WPMM808 | LICCNV |
| 1998-09-23 | WPMM808 | AUTHPR |
| 1998-09-23 | WPMM808 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1797318 | 2026-08-02 01:26:45 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPMM808 | ULS 1797318 | 2026-08-02 01:26:45 |
| Status | E | ULS 1797318 | 2026-08-02 01:26:45 |
| Service | IG | ULS 1797318 | 2026-08-02 01:26:45 |
| Grant Date | 1998-09-23 | ULS 1797318 | 2026-08-02 01:26:45 |
| Expiration Date | 2003-09-23 | ULS 1797318 | 2026-08-02 01:26:45 |
| Cancellation Date | 2003-11-23 | ULS 1797318 | 2026-08-02 01:26:45 |