Universal Licensing System
KNKM637
CRUMP, JOHN L. DBA: ACE COMMUNICATIONS
License details
| ULS identifier | 3717 |
|---|---|
| Call sign | KNKM637 |
| Radio service | CD |
| Status | C |
| Grant date | 1999-05-03 |
| Expiration | 2009-04-01 |
| Cancellation | 2005-01-06 |
| Frequency range | 454.4 MHz |
| Locations | 11 |
| Representative location | ARBUTUS, BALTIMORE CITY, MD |
| Coordinates | 39.2559167, -76.6743889 |
| Source archive | l_paging.zip |
| Dataset refreshed | 2026-08-02 02:52:27 |
Licensee
| Name | CRUMP, JOHN L. DBA: ACE COMMUNICATIONS |
|---|---|
| Applicant type | C |
| FRN | 0003764537 |
| Location | OAKTON, VA |
| Address | OAKTON, VA, 221240000 |
| Phone | 2022960600 |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | FBBS | 454.40000000 | 500.000000 | ||||
| 2 | 1 | FBBS | 454.40000000 | 352.000000 | ||||
| 3 | 1 | FBBS | 454.40000000 | 500.000000 | ||||
| 4 | 1 | FBBS | 454.40000000 | 500.000000 | ||||
| 5 | 1 | FBBS | 454.40000000 | 403.000000 | ||||
| 6 | 1 | FBBS | 454.40000000 | 500.000000 | ||||
| 7 | 1 | FBBS | 454.40000000 | 19.000000 | ||||
| 8 | 1 | FBBS | 454.40000000 | 275.000000 | ||||
| 9 | 1 | FBBS | 454.40000000 | 500.000000 | ||||
| 10 | 1 | FBBS | 454.40000000 | 117.000000 | ||||
| 11 | 1 | FBBS | 454.40000000 | 500.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 1 | 1 | 454.40000000 | 15K0F2D | |
| 1 | 1 | 454.40000000 | 16K0F1D | |
| 1 | 1 | 454.40000000 | 16K0F3E | |
| 2 | 1 | 454.40000000 | 15K0F2D | |
| 2 | 1 | 454.40000000 | 16K0F1D | |
| 2 | 1 | 454.40000000 | 16K0F3E | |
| 3 | 1 | 454.40000000 | 16K0F3E | |
| 3 | 1 | 454.40000000 | 15K0F2D | |
| 3 | 1 | 454.40000000 | 16K0F1D | |
| 4 | 1 | 454.40000000 | 16K0F3E | |
| 4 | 1 | 454.40000000 | 15K0F2D | |
| 4 | 1 | 454.40000000 | 16K0F1D | |
| 5 | 1 | 454.40000000 | 16K0F3E | |
| 5 | 1 | 454.40000000 | 16K0F1D | |
| 5 | 1 | 454.40000000 | 15K0F2D | |
| 6 | 1 | 454.40000000 | 16K0F3E | |
| 6 | 1 | 454.40000000 | 16K0F1D | |
| 6 | 1 | 454.40000000 | 15K0F2D | |
| 7 | 1 | 454.40000000 | 16K0F1D | |
| 7 | 1 | 454.40000000 | 15K0F2D | |
| 7 | 1 | 454.40000000 | 16K0F3E | |
| 8 | 1 | 454.40000000 | 15K0F2D | |
| 8 | 1 | 454.40000000 | 16K0F1D | |
| 8 | 1 | 454.40000000 | 16K0F3E | |
| 9 | 1 | 454.40000000 | 15K0F2D | |
| 9 | 1 | 454.40000000 | 16K0F3E | |
| 9 | 1 | 454.40000000 | 16K0F1D | |
| 10 | 1 | 454.40000000 | 15K0F2D | |
| 10 | 1 | 454.40000000 | 16K0F1D | |
| 10 | 1 | 454.40000000 | 16K0F3E | |
| 11 | 1 | 454.40000000 | 15K0F2D | |
| 11 | 1 | 454.40000000 | 16K0F1D | |
| 11 | 1 | 454.40000000 | 16K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | 3600 GEORGETOWN ROAD, ARBUTUS, BALTIMORE CITY, MD | 39.25591667, -76.67438889 | 67.100 m | 155.800 m overall | N | |
| 2 | T | INTERSECT OF VA RT 601 & RT 650; 3 MILES SW OF, BLUEMONT, CLARKE, VA | 39.08119444, -77.87358333 | 536.400 m | 36.600 m overall | N | |
| 3 | T | 11800 SUNRISE VALLEY DRIVE, RESTON, FAIRFAX CITY, VA | 38.94980556, -77.35469444 | 140.200 m | 60.700 m overall | N | |
| 4 | T | 9727 Mount Pisgah Road, SILVER SPRING, MONTGOMERY, MD | 39.01702778, -76.97330556 | 100.600 m | 59.100 m overall | N | |
| 5 | T | POPLAR HILL - BEANTOWN RD, WALDORF, CHARLES, MD | 38.61872222, -76.84466667 | 55.200 m | 234.100 m overall | N | |
| 6 | T | 639 HORNER ROAD, WOODBRIDGE, PRINCE WILLIAM, VA | 38.65650000, -77.28719444 | 73.200 m | 97.500 m overall | N | |
| 7 | T | 101 EVANS STREET, ROCKVILLE, MONTGOMERY, MD | 39.08202778, -77.15830556 | 73.200 m | N | ||
| 8 | T | 236 ADMIRALS DRIVE, ANNAPOLIS, ANNE ARUNDEL, MD | 38.98344444, -76.52216667 | 18.900 m | 119.500 m overall | N | |
| 9 | T | 401 WASHINGTON AVENUE, TOWSON, BALTIMORE CITY, MD | 39.39980556, -76.65494444 | 137.500 m | 51.200 m overall | N | |
| 10 | T | ON THE EAST SIDE OF GAMBRILL PARK ROAD, FREDERICK, FREDERICK, MD | 39.49397222, -77.49830556 | 527.300 m | 45.700 m overall | N | |
| 11 | T | 4 MILES NORTHWEST OF, WARRENTON, FAUQUIER, VA | 38.90872222, -77.83497222 | 302.100 m | 60.700 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | CELWAVE PD-496-4 | 128.000 m | V | 360.0000 | |||
| 1 | 2 | T | DECIBEL DB-408-L | 36.600 m | V | 270.0000 | |||
| 1 | 3 | T | DECIBEL DB-408 | 60.700 m | V | 360.0000 | |||
| 1 | 4 | T | DECIBEL DB-408 | 59.100 m | V | 360.0000 | |||
| 1 | 5 | T | SINCLAIR RADIO COMPANY SRL-335.2 | 221.900 m | V | ||||
| 1 | 6 | T | CELWAVE PD-455 | 91.400 m | V | ||||
| 1 | 7 | T | DECI DB-404 | 9.100 m | V | 3.8000 | 360.0000 | ||
| 1 | 8 | T | CELWAVE PD-455 | 118.900 m | V | 360.0000 | |||
| 1 | 9 | T | CELWAVE PD-455 | 51.200 m | V | 360.0000 | |||
| 1 | 10 | T | DECIBEL DB-411 | 45.700 m | V | 0.0000 | |||
| 1 | 11 | T | DECIBEL DB-411 | 54.600 m | V |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | East Side of Gambrill Park RD., Frederick, MD | 7037582552 | |
| 2 | 639 HORNER ROAD, WOODBRIDGE, VA | 7097582558 | |
| 3 | 3600 Georgetown Road, Arbutus, MD | 7037582552 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2005-01-12 | KNKM637 | PNACT |
| 2005-01-07 | KNKM637 | LETCAS |
| 2005-01-06 | KNKM637 | AUDCAN |
| 2004-12-07 | KNKM637 | LETAFU |
| 2004-11-25 | KNKM637 | LICAN |
| 2004-09-28 | KNKM637 | LETAUS |
| 1999-05-05 | KNKM637 | AUTHPR |
| 1999-05-03 | KNKM637 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 3717 | 2026-08-02 02:52:17 | Source Primary |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | KNKM637 | ULS 3717 | 2026-08-02 02:52:27 |
| Status | C | ULS 3717 | 2026-08-02 02:52:27 |
| Service | CD | ULS 3717 | 2026-08-02 02:52:27 |
| Grant Date | 1999-05-03 | ULS 3717 | 2026-08-02 02:52:27 |
| Expiration Date | 2009-04-01 | ULS 3717 | 2026-08-02 02:52:27 |
| Cancellation Date | 2005-01-06 | ULS 3717 | 2026-08-02 02:52:27 |
Related FCC records
| System or type | Record | Relationship |
|---|---|---|
| COMPANY | John L. Crump | Filed By |
| FILING | 492 | Filed By |
| FILING | 4942 | Filed By |