Universal Licensing System
WSIS580
Helmsco, Inc.
License details
| ULS identifier | 5151258 |
|---|
| Call sign | WSIS580 |
|---|
| Radio service | MG |
|---|
| Status | A |
|---|
| Grant date | 2025-06-16 |
|---|
| Expiration | 2035-06-16 |
|---|
| Frequency range | 10835 - 11565 MHz (4 frequencies) |
|---|
| Locations | 2 |
|---|
| Coordinates | 31.7160278, -97.0187500 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:47:21 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FXO | 10835.00000000 | | | | | |
| 1 | 1 | FXO | 11075.00000000 | | | | | |
| 1 | 2 | FXO | 11325.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 2 | 10835.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 1 | 11075.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 2 | 11325.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
| 1 | 1 | 11565.00000000 | | 77M0D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | No Exact Address, Waco, MCLENNAN, TX | 31.63030556, -97.02263889 | 141.000 m | B | 19.800 m structure / 19.800 m overall | |
| 2 | R | | 31.71602778, -97.01875000 | 150.000 m | | | |
| 3 | R | | 31.54700000, -96.95719444 | 155.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Jirous JRMC-900-10/11 | | S | 37.5000 | 2.2000 | | |
| 1 | 2 | R | Jirous JRMC-900-10/11 | | | 37.5000 | | | |
| 1 | 3 | R | Jirous JRMC-900-10/11 | | | 37.5000 | | | |
| 2 | 1 | T | Jirous JRMC-900-10/11 | | S | 37.5000 | 146.2000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2025-06-16 | WSIS580 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5151258 | 2026-08-02 02:47:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSIS580 | ULS 5151258 | 2026-08-02 02:47:21 |
| Status | A | ULS 5151258 | 2026-08-02 02:47:21 |
| Service | MG | ULS 5151258 | 2026-08-02 02:47:21 |
| Grant Date | 2025-06-16 | ULS 5151258 | 2026-08-02 02:47:21 |
| Expiration Date | 2035-06-16 | ULS 5151258 | 2026-08-02 02:47:21 |