Universal Licensing System
KNHH433
POTOMAC DISPOSAL INC
License details
| ULS identifier | 1775219 |
|---|
| Call sign | KNHH433 |
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| Radio service | IK |
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| Status | E |
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| Grant date | 2003-10-07 |
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| Expiration | 2013-09-15 |
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| Cancellation | 2013-11-09 |
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| Frequency range | 452.025 - 466.1 MHz (4 frequencies) |
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| Locations | 6 |
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| Representative location | SILVER SPRING, MONTGOMERY, MD |
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| Coordinates | 39.1442778, -76.9871944 |
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| Source archive | l_LMcomm.zip |
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| Dataset refreshed | 2026-08-02 00:43:55 |
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Licensee
| Name | POTOMAC DISPOSAL INC |
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| Applicant type | C |
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| FRN | 0009485277 |
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| Location | ROCKVILLE, MD |
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| Address | 14815 DOVER DR, ROCKVILLE, MD, 20850 |
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| Phone | 3012949700 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 452.02500000 | | | 70.000000 | 466.000000 | |
| 2 | 1 | FB | 452.02500000 | | | 35.000000 | 30.000000 | |
| 3 | 1 | FB | 452.02500000 | | | 35.000000 | 30.000000 | |
| 5 | 1 | MO6 | 452.02500000 | | | 100.000000 | | |
| 6 | 1 | FBT | 452.02500000 | | | 35.000000 | | |
| 4 | 1 | FX1 | 457.02500000 | | | 35.000000 | | |
| 5 | 1 | MO6 | 457.02500000 | | | 5.000000 | | |
| 6 | 1 | FX1T | 457.02500000 | | | 35.000000 | | |
| 1 | 1 | FB6 | 461.10000000 | | | 70.000000 | 466.000000 | |
| 2 | 1 | FB | 461.10000000 | | | 35.000000 | 30.000000 | |
| 3 | 1 | FB | 461.10000000 | | | 35.000000 | 30.000000 | |
| 5 | 1 | MO6 | 461.10000000 | | | 100.000000 | | |
| 6 | 1 | FBT | 461.10000000 | | | 35.000000 | | |
| 4 | 1 | FX1 | 466.10000000 | | | 35.000000 | | |
| 5 | 1 | MO6 | 466.10000000 | | | 5.000000 | | |
| 6 | 1 | FX1T | 466.10000000 | | | 35.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.02500000 | | 20K0F3E |
| 2 | 1 | 452.02500000 | | 20K0F3E |
| 3 | 1 | 452.02500000 | | 20K0F3E |
| 5 | 1 | 452.02500000 | | 20K0F3E |
| 6 | 1 | 452.02500000 | | 20K0F3E |
| 4 | 1 | 457.02500000 | | 20K0F3E |
| 5 | 1 | 457.02500000 | | 20K0F3E |
| 6 | 1 | 457.02500000 | | 20K0F3E |
| 1 | 1 | 461.10000000 | | 20K0F3E |
| 2 | 1 | 461.10000000 | | 20K0F3E |
| 3 | 1 | 461.10000000 | | 20K0F3E |
| 5 | 1 | 461.10000000 | | 20K0F3E |
| 6 | 1 | 461.10000000 | | 20K0F3E |
| 4 | 1 | 466.10000000 | | 20K0F3E |
| 5 | 1 | 466.10000000 | | 20K0F3E |
| 6 | 1 | 466.10000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 17335 DENORA RD, SILVER SPRING, MONTGOMERY, MD | 39.14427778, -76.98719444 | 161.000 m | TOWER | 58.000 m structure / 61.000 m overall | N |
| 2 | T | 14815 DOVER RD, ROCKVILLE, MONTGOMERY, MD | 39.09650000, -77.14663889 | 119.000 m | B | 3.000 m structure / 6.000 m overall | N |
| 3 | T | 1701 REDLAND RD, ROCKVILLE, MONTGOMERY, MD | 39.13233333, -77.14663889 | 83.000 m | B | 6.000 m structure / 9.000 m overall | N |
| 4 | T | MD | | | | | |
| 5 | T | | | | | | |
| 6 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 58.000 m | | | | 98.000 | |
| 1 | 2 | T | | 6.000 m | | | | 13.000 | |
| 1 | 3 | T | | 9.000 m | | | | -36.000 | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 14815 DOVER RD, ROCKVILLE, MD | | 3012949700 |
License history
| Date | File or call sign | Action |
|---|
| 2013-11-09 | KNHH433 | LIEXP |
| 2013-06-24 | KNHH433 | LETRES |
| 2003-10-07 | KNHH433 | LIREN |
| 2003-06-23 | KNHH433 | LETRES |
| 2001-03-27 | KNHH433 | COR |
| 2000-11-23 | KNHH433 | LICCNV |
| 1998-09-29 | KNHH433 | AUTHPR |
| 1998-09-15 | KNHH433 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1775219 | 2026-08-02 00:43:55 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNHH433 | ULS 1775219 | 2026-08-02 00:43:55 |
| Status | E | ULS 1775219 | 2026-08-02 00:43:55 |
| Service | IK | ULS 1775219 | 2026-08-02 00:43:55 |
| Grant Date | 2003-10-07 | ULS 1775219 | 2026-08-02 00:43:55 |
| Expiration Date | 2013-09-15 | ULS 1775219 | 2026-08-02 00:43:55 |
| Cancellation Date | 2013-11-09 | ULS 1775219 | 2026-08-02 00:43:55 |