Universal Licensing System
WRMJ687
Wisper ISP, LLC
License details
| ULS identifier | 4438311 |
|---|
| Call sign | WRMJ687 |
|---|
| Radio service | MG |
|---|
| Status | A |
|---|
| Grant date | 2021-04-20 |
|---|
| Expiration | 2031-04-20 |
|---|
| Frequency range | 11325 - 11405 MHz (2 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | TUNNEL HILL, JOHNSON, IL |
|---|
| Coordinates | 37.5200278, -88.8366111 |
|---|
| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-17 04:25:28 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
| 1 | 1 | FXO | 11405.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 2 | 11325.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
| 1 | 1 | 11405.00000000 | | 80M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 145 JACKSON ROAD, TUNNEL HILL, JOHNSON, IL | 37.52002778, -88.83661111 | 220.300 m | GTOWER | 74.600 m structure / 76.200 m overall | |
| 2 | R | | 37.53316667, -88.91883333 | 237.700 m | | | |
| 3 | R | | 37.56527778, -88.77641667 | 210.600 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RF Engineering & Energy R RFMA-1138UH09WS | | S | 37.6000 | 281.4000 | | |
| 1 | 2 | R | RF Engineering & Energy R RFMA-1138UH09WS | | | 37.6000 | 0.0000 | | |
| 1 | 3 | R | RF Engineering & Energy R RFMA-1138UH09WS | | | 37.6000 | 0.0000 | | |
| 2 | 1 | T | RF Engineering & Energy R RFMA-1138UH09WS | | S | 37.6000 | 46.6000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2024-01-30 | WRMJ687 | LITRAN |
| 2023-07-13 | WRMJ687 | LITRAN |
| 2021-04-20 | WRMJ687 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4438311 | 2026-08-17 04:25:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMJ687 | ULS 4438311 | 2026-08-17 04:25:28 |
| Status | A | ULS 4438311 | 2026-08-17 04:25:28 |
| Service | MG | ULS 4438311 | 2026-08-17 04:25:28 |
| Grant Date | 2021-04-20 | ULS 4438311 | 2026-08-17 04:25:28 |
| Expiration Date | 2031-04-20 | ULS 4438311 | 2026-08-17 04:25:28 |