Universal Licensing System
WQWH412
635 MASSACHUSETTS AVENUE LLC
License details
| ULS identifier | 3729689 |
|---|
| Call sign | WQWH412 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2025-08-23 |
|---|
| Expiration | 2035-08-24 |
|---|
| Frequency range | 451.4125 - 469.3 MHz (9 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | Washington, DC |
|---|
| Coordinates | 38.9020000, -77.0202500 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:21:01 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | MO | 451.41250000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 451.48750000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 451.53750000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 456.48750000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 456.53750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 462.37500000 | | | 50.000000 | 25.000000 | |
| 2 | 1 | MO | 462.37500000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 464.30000000 | | | 50.000000 | 25.000000 | |
| 2 | 1 | MO | 464.30000000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 467.37500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 469.30000000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 451.41250000 | | 7K60FXE |
| 3 | 1 | 451.48750000 | | 7K60FXE |
| 3 | 1 | 451.53750000 | | 7K60FXE |
| 3 | 1 | 456.48750000 | | 7K60FXE |
| 3 | 1 | 456.53750000 | | 7K60FXE |
| 1 | 1 | 462.37500000 | | 7K60FXE |
| 2 | 1 | 462.37500000 | | 7K60FXE |
| 1 | 1 | 464.30000000 | | 7K60FXE |
| 2 | 1 | 464.30000000 | | 7K60FXE |
| 2 | 1 | 467.37500000 | | 7K60FXE |
| 2 | 1 | 469.30000000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 601 Massachusetts Ave NW, Washington, DC | 38.90200000, -77.02025000 | 18.400 m | B | 50.300 m structure / 50.300 m overall | |
| 2 | T | | | | | | |
| 3 | T | Washington, DC | 38.90200000, -77.02025000 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 27.400 m | | | | -9.900 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 601 Massachusetts Ave NW, Washington, DC | | 2025850800 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-23 | WQWH412 | LIREN |
| 2025-06-02 | WQWH412 | LETRES |
| 2024-06-18 | WQWH412 | LETCNS |
| 2023-09-19 | WQWH412 | LIMOD |
| 2015-08-24 | WQWH412 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3729689 | 2026-08-02 01:21:01 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQWH412 | ULS 3729689 | 2026-08-02 01:21:01 |
| Status | A | ULS 3729689 | 2026-08-02 01:21:01 |
| Service | IG | ULS 3729689 | 2026-08-02 01:21:01 |
| Grant Date | 2025-08-23 | ULS 3729689 | 2026-08-02 01:21:01 |
| Expiration Date | 2035-08-24 | ULS 3729689 | 2026-08-02 01:21:01 |