Universal Licensing System
WPKM785
VOICE DATA SYSTEMS
License details
| ULS identifier | 1748810 |
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| Call sign | WPKM785 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-04-29 |
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| Expiration | 2002-04-29 |
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| Cancellation | 2002-09-01 |
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| Frequency range | 464.5 - 469.55 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | US |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:03 |
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Licensee
| Name | VOICE DATA SYSTEMS |
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| Applicant type | C |
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| Location | GRAND RAPIDS, MI |
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| Address | 210 FRONT ST SW, GRAND RAPIDS, MI, 49504 |
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| Phone | 6162350408 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MOI | 464.50000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MOI | 464.55000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MOI | 469.50000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MOI | 469.55000000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.50000000 | | 20K0F3E |
| 1 | 1 | 464.55000000 | | 20K0F3E |
| 1 | 1 | 469.50000000 | | 20K0F3E |
| 1 | 1 | 469.55000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | US | | | | | |
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 | 210 FRONT ST SW, GRAND RAPIDS, MI | | 6162350408 |
License history
| Date | File or call sign | Action |
|---|
| 2002-09-01 | WPKM785 | LIEXP |
| 2002-02-04 | WPKM785 | LETRES |
| 2000-11-23 | WPKM785 | LICCNV |
| 1997-04-29 | WPKM785 | LIISS |
| 1997-04-29 | WPKM785 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1748810 | 2026-08-02 01:29:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKM785 | ULS 1748810 | 2026-08-02 01:29:03 |
| Status | E | ULS 1748810 | 2026-08-02 01:29:03 |
| Service | IG | ULS 1748810 | 2026-08-02 01:29:03 |
| Grant Date | 1997-04-29 | ULS 1748810 | 2026-08-02 01:29:03 |
| Expiration Date | 2002-04-29 | ULS 1748810 | 2026-08-02 01:29:03 |
| Cancellation Date | 2002-09-01 | ULS 1748810 | 2026-08-02 01:29:03 |