Universal Licensing System
WPLD407
RADIO SYSTEMS INC
License details
| ULS identifier | 1753926 |
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| Call sign | WPLD407 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-03-18 |
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| Expiration | 2002-03-18 |
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| Cancellation | 2002-05-19 |
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| Frequency range | 464.6 - 469.8 MHz (4 frequencies) |
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| Locations | 3 |
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| Representative location | EVERETT, MIDDLESEX, MA |
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| Coordinates | 42.4161944, -71.0578333 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:04 |
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Licensee
| Name | RADIO SYSTEMS INC |
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| Applicant type | C |
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| Location | LYNN, MA |
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| Address | 426 BOSTON ST, LYNN, MA, 01905 |
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| Phone | 6175932321 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 464.60000000 | | | 75.000000 | 75.000000 | |
| 1 | 1 | FB6 | 464.80000000 | | | 75.000000 | 75.000000 | |
| 3 | 1 | MO | 469.60000000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | FX1 | 469.80000000 | | | 15.000000 | 15.000000 | |
| 3 | 1 | MO | 469.80000000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.60000000 | | 20K0F3E |
| 1 | 1 | 464.80000000 | | 20K0F3E |
| 3 | 1 | 469.60000000 | | 20K0F3E |
| 2 | 1 | 469.80000000 | | 20K0F3E |
| 3 | 1 | 469.80000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | WHIDDEN MEMORIAL HOSPITAL, EVERETT, MIDDLESEX, MA | 42.41619444, -71.05783333 | 45.000 m | B | 20.000 m structure / 20.000 m overall | N |
| 2 | T | MA | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 24.000 m | | | | 48.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 426 BOSTON ST, EVERETT, MA | | 6175932320 |
License history
| Date | File or call sign | Action |
|---|
| 2002-05-19 | WPLD407 | LIEXP |
| 2001-12-26 | WPLD407 | LETRES |
| 2001-10-17 | WPLD407 | LETAUS |
| 2000-11-23 | WPLD407 | LICCNV |
| 1997-03-18 | WPLD407 | LIISS |
| 1997-03-18 | WPLD407 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1753926 | 2026-08-02 01:29:04 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPLD407 | ULS 1753926 | 2026-08-02 01:29:04 |
| Status | E | ULS 1753926 | 2026-08-02 01:29:04 |
| Service | IG | ULS 1753926 | 2026-08-02 01:29:04 |
| Grant Date | 1997-03-18 | ULS 1753926 | 2026-08-02 01:29:04 |
| Expiration Date | 2002-03-18 | ULS 1753926 | 2026-08-02 01:29:04 |
| Cancellation Date | 2002-05-19 | ULS 1753926 | 2026-08-02 01:29:04 |