| KHz | ID | LSB | USB | Sec. | Fmt. | Location | S/P | ITU | Region | GSQ | Power | Logs | Notes | Latest by Listener | Last Heard | KM | Miles | Deg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 518 | $04R | Isabella (San Juan) | PR | PTR | ca | FK68ll | 1 | BCST @ 0250, 0650, 1050, 1450, 1850, 2250 UTC. Callsign: NMR. Operational Range: 370km (200nm). [2024-01] Data validated & updated (YAND db v2.5). | 2021-10-22 | 2023-10-22 | 4941 | 3070 | 106 |