Universal Licensing System
WRMM409
Essex Telcom, Inc.
License details
| ULS identifier | 4443275 |
|---|
| Call sign | WRMM409 |
|---|
| Radio service | CF |
|---|
| Status | A |
|---|
| Grant date | 2021-05-03 |
|---|
| Expiration | 2031-05-03 |
|---|
| Frequency range | 17835 - 17980 MHz (2 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | Champaign, CHAMPAIGN, IL |
|---|
| Coordinates | 40.0693333, -88.3710833 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:47:35 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 1 | FXO | 17835.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
| 1 | 2 | FXO | 17980.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 17835.00000000 | | 10M0G7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 1 | 17835.00000000 | | 10M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0G7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
| 1 | 2 | 17980.00000000 | | 80M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 495 County Rd 1300 N, Champaign, CHAMPAIGN, IL | 40.06933333, -88.37108333 | 214.900 m | B | 9.100 m structure / 16.800 m overall | |
| 2 | R | | 40.10800000, -88.42602778 | 211.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RADIO WAVES, INC HP2-18 | | V | 38.6000 | 312.5000 | | |
| 1 | 2 | R | RADIO WAVES, INC HP2-18 | | | 38.6000 | | | |
| 2 | 1 | T | RADIO WAVES, INC HP2-18 | | V | 38.6000 | 312.5000 | | |
| 2 | 2 | R | RADIO WAVES, INC HP2-18 | | | 38.6000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2026-06-30 | WRMM409 | LIMOD |
| 2023-02-01 | WRMM409 | LITRAN |
| 2021-05-03 | WRMM409 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4443275 | 2026-08-02 02:47:35 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMM409 | ULS 4443275 | 2026-08-02 02:47:35 |
| Status | A | ULS 4443275 | 2026-08-02 02:47:35 |
| Service | CF | ULS 4443275 | 2026-08-02 02:47:35 |
| Grant Date | 2021-05-03 | ULS 4443275 | 2026-08-02 02:47:35 |
| Expiration Date | 2031-05-03 | ULS 4443275 | 2026-08-02 02:47:35 |