MATT TODD ARCHIVE · AMATEUR RADIO
KB1ZTX
1 QSO in the amateur radio archive
Callsign: KB1ZTX
Name: WALTER D COSTA Contacts: 1
Contact locations
Operating sites: 1 · Worked-station positions: 1. Pins and paths use historical QSO coordinates or approximate grid centers.
| Date | UTC | Band | Frequency | Mode | Sent | Rcvd | Name | QTH | My Location | Distance | Their POTA |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 22, 2025 | 18:51:57 | 20m | 14.307000 | SSB | 51 | 59 | WALTER D COSTA | Laconia, NH, United States | Mukwonago, WI, United States | 846 mi | — |