Universal Licensing System
WNNT431
VIAFIELD
License details
| ULS identifier | 1666772 |
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| Call sign | WNNT431 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-02-12 |
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| Expiration | 2014-03-14 |
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| Cancellation | 2014-05-17 |
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| Frequency range | 461.8 - 466.8 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | NORTHWOOD, WORTH, IA |
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| Coordinates | 43.4443889, -93.2174167 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:41 |
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Licensee
| Name | VIAFIELD |
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| Applicant type | C |
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| FRN | 0010332575 |
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| Location | Marble Rock, IA |
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| Address | Marble Rock, IA, 50653 |
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| Phone | 6413153512 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB4 | 461.80000000 | | | 90.000000 | 108.000000 | |
| 3 | 1 | MO | 461.80000000 | | | 90.000000 | | |
| 1 | 1 | FX1 | 466.80000000 | | | 90.000000 | | |
| 3 | 1 | MO | 466.80000000 | | | 90.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 461.80000000 | | 20K0F3E |
| 2 | 1 | 461.80000000 | | 11K2F3E |
| 3 | 1 | 461.80000000 | | 20K0F3E |
| 3 | 1 | 461.80000000 | | 11K2F3E |
| 1 | 1 | 466.80000000 | | 20K0F3E |
| 1 | 1 | 466.80000000 | | 11K2F3E |
| 3 | 1 | 466.80000000 | | 20K0F3E |
| 3 | 1 | 466.80000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | IA | | | | | |
| 2 | T | 3RD AVE N, NORTHWOOD, WORTH, IA | 43.44438889, -93.21741667 | 382.000 m | | | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 53.000 m | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 207 14th st, Northwood, IA | WORTH | 6413242753 |
Special conditions
| Type | Condition code |
|---|
| P | 4020 |
| P | 5071 |
License history
| Date | File or call sign | Action |
|---|
| 2014-05-17 | WNNT431 | LIEXP |
| 2013-12-16 | WNNT431 | LETRES |
| 2012-09-25 | WNNT431 | LTSAPR |
| 2012-09-25 | WNNT431 | LIMOD |
| 2004-02-12 | WNNT431 | LIREN |
| 2003-12-22 | WNNT431 | LETRES |
| 2001-11-13 | WNNT431 | AUDOPR |
| 2000-11-23 | WNNT431 | LICCNV |
| 1999-01-13 | WNNT431 | AUTHPR |
| 1999-01-13 | WNNT431 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1666772 | 2026-08-02 01:16:41 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNNT431 | ULS 1666772 | 2026-08-02 01:16:41 |
| Status | E | ULS 1666772 | 2026-08-02 01:16:41 |
| Service | IG | ULS 1666772 | 2026-08-02 01:16:41 |
| Grant Date | 2004-02-12 | ULS 1666772 | 2026-08-02 01:16:41 |
| Expiration Date | 2014-03-14 | ULS 1666772 | 2026-08-02 01:16:41 |
| Cancellation Date | 2014-05-17 | ULS 1666772 | 2026-08-02 01:16:41 |