Universal Licensing System
WNXF409
NATIONAL H V A C SERVICE LTD DBA COMFORT SERVICE CO
License details
| ULS identifier | 1688192 |
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| Call sign | WNXF409 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1996-12-17 |
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| Expiration | 2001-09-03 |
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| Cancellation | 2002-02-03 |
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| Frequency range | 468.975 - 469.7 MHz (2 frequencies) |
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| Locations | 4 |
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| Representative location | MILLSBORO, SUSSEX, DE |
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| Coordinates | 38.5759444, -75.3379722 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:21 |
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Licensee
| Name | NATIONAL H V A C SERVICE LTD DBA COMFORT SERVICE CO |
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| Applicant type | C |
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| FRN | 0003177706 |
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| Location | SEAFORD, DE |
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| Address | N US RT 13, SEAFORD, DE, 19973 |
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| Phone | 3025299400 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB4 | 463.97500000 | | | 100.000000 | 288.000000 | |
| 4 | 1 | MO | 463.97500000 | | | 35.000000 | | |
| 3 | 1 | FB4 | 464.70000000 | | | 100.000000 | 468.000000 | |
| 1 | 1 | FX1 | 468.97500000 | | | 20.000000 | | |
| 4 | 1 | MO | 468.97500000 | | | 35.000000 | | |
| 1 | 1 | FX1 | 469.70000000 | | | 20.000000 | | |
| 4 | 1 | MO | 469.70000000 | | | 35.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 463.97500000 | | 20K0F3E |
| 4 | 1 | 463.97500000 | | 20K0F3E |
| 3 | 1 | 464.70000000 | | 20K0F3E |
| 1 | 1 | 468.97500000 | | 20K0F3E |
| 4 | 1 | 468.97500000 | | 20K0F3E |
| 1 | 1 | 469.70000000 | | 20K0F3E |
| 4 | 1 | 469.70000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DE | | | | | |
| 2 | T | RD 412 NEAR JCT RD 410 AND RT 24, MILLSBORO, SUSSEX, DE | 38.57594444, -75.33797222 | 9.000 m | | | N |
| 3 | T | 1 MI S OF ATLANTIC ST, BETHANY BEACH, SUSSEX, DE | 38.52927778, -75.08019444 | 5.000 m | | | N |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 122.000 m | | | | 0.000 | |
| 1 | 3 | T | | 107.000 m | | | | 0.000 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 545 RIFLE RANGE RD, BRIDGEVILLE, DE | | 3025299400 |
License history
| Date | File or call sign | Action |
|---|
| 2002-02-03 | WNXF409 | LIEXP |
| 2001-10-18 | WNXF409 | AUDCAN |
| 2001-06-11 | WNXF409 | LETRES |
| 2000-11-23 | WNXF409 | LICCNV |
| 1996-12-17 | WNXF409 | LIREN |
| 1996-12-17 | WNXF409 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1688192 | 2026-08-02 01:13:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNXF409 | ULS 1688192 | 2026-08-02 01:13:21 |
| Status | E | ULS 1688192 | 2026-08-02 01:13:21 |
| Service | IG | ULS 1688192 | 2026-08-02 01:13:21 |
| Grant Date | 1996-12-17 | ULS 1688192 | 2026-08-02 01:13:21 |
| Expiration Date | 2001-09-03 | ULS 1688192 | 2026-08-02 01:13:21 |
| Cancellation Date | 2002-02-03 | ULS 1688192 | 2026-08-02 01:13:21 |