Universal Licensing System
WNZN388
CENTRAL INVESTIGATIONS & SECURITY INC
License details
| ULS identifier | 1696816 |
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| Call sign | WNZN388 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-08-11 |
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| Expiration | 2002-08-11 |
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| Cancellation | 2002-12-15 |
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| Frequency range | 464.35 - 469.35 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | BOULDER, ARAPAHOE, CO |
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| Coordinates | 40.0719167, -105.3544444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:28:30 |
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Licensee
| Name | CENTRAL INVESTIGATIONS & SECURITY INC |
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| Applicant type | C |
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| Location | DENVER, CO |
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| Address | 7100 N BROADWAY BLDG 6 STE J, DENVER, CO, 80221 |
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| Phone | 3033404403 |
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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 | FB4 | 464.35000000 | | | 90.000000 | 276.000000 | |
| 2 | 1 | MO | 469.35000000 | | | 4.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.35000000 | | 20K0F3E |
| 2 | 1 | 469.35000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | LEE HILL ELECTRONIC SITE, BOULDER, ARAPAHOE, CO | 40.07191667, -105.35444444 | 2432.000 m | TOWER | 14.000 m structure / 20.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 20.000 m | | | | 0.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 3035 47TH ST, BOULDER, CO | | 3034408855 |
License history
| Date | File or call sign | Action |
|---|
| 2002-12-15 | WNZN388 | LIEXP |
| 2002-05-20 | WNZN388 | LETRES |
| 2002-04-26 | WNZN388 | LETAUS |
| 2000-11-23 | WNZN388 | LICCNV |
| 1997-08-11 | WNZN388 | LIREN |
| 1997-08-11 | WNZN388 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1696816 | 2026-08-02 01:28:30 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNZN388 | ULS 1696816 | 2026-08-02 01:28:30 |
| Status | E | ULS 1696816 | 2026-08-02 01:28:30 |
| Service | IG | ULS 1696816 | 2026-08-02 01:28:30 |
| Grant Date | 1997-08-11 | ULS 1696816 | 2026-08-02 01:28:30 |
| Expiration Date | 2002-08-11 | ULS 1696816 | 2026-08-02 01:28:30 |
| Cancellation Date | 2002-12-15 | ULS 1696816 | 2026-08-02 01:28:30 |