WO4SFA — FT8 station from United States
Amateur radio station WO4SFA operating from United States (grid square JO70). 137 FT8 spots received at SO8OO WebSDR, active on 80m, 40m, 20m, 10m, over 8 days, best SNR +21 dB. Heard between 2026-04-21 and 2026-05-13.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
137
Total spots
0
CQ calls
8
Days active
-2 dB
Avg SNR
Bands
80m
20m
40m
10m
First seen: 2026-04-21
Last seen: 2026-05-13 21:32 UTC
Last seen: 2026-05-13 21:32 UTC
Frequent QSO partners observed at SO8OO
Stations WO4SFA worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | WO4SFA | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 05-13 23:31 | 20m | +1 / - | AO7RKB | - / -10 | 2 | ✓ Confirmed |
| 05-13 23:23 | 20m | - / - | K4XN | -10 / - | 2 | Partial |
| 05-13 23:13 | 20m | +2 / - | A61CK | - / -15 | 3 | ✓ Confirmed |
| 05-13 22:29 | 40m | +2 / - | F4JVF | - / -16 | 2 | Partial |
| 05-12 19:38 | 10m | -14 / - | PP2GM | - / -19 | 2 | ✓ Confirmed |
| 05-12 19:38 | 10m | -6 / - | PU2UTY | - / -18 | 2 | Partial |
| 05-09 20:14 | 20m | -13 / - | PD1DTH | - / -18 | 2 | Partial |
| 05-09 02:33 | 40m | -22 / - | WB3FAA | -19 / +8 | 2 | Partial |
| 05-09 02:30 | 40m | -12 / - | IW9FRA | - / - | 9 | Partial |
| 05-09 02:03 | 40m | +14 / - | F4NNP | - / +2 | 2 | ✓ Confirmed |
| 05-09 02:00 | 80m | -2 / - | SM5DIC | - / - | 2 | Partial |
| 05-09 01:58 | 80m | +20 / - | OK4FX | - / - | 3 | Partial |
| 05-09 01:51 | 80m | - / -18 | KI5DZY | -22 / - | 2 | Partial |
| 05-09 01:49 | 80m | +12 / - | 9A5E | - / - | 5 | Partial |
| 05-09 01:47 | 80m | -10 / - | MM0KPV | - / -11 | 3 | Partial |
| 05-09 01:46 | 80m | -12 / - | EA7GXD | - / - | 3 | Partial |
| 05-09 01:45 | 80m | +7 / - | 9A5E | - / - | 3 | Partial |
| 05-09 01:44 | 80m | -12 / - | EA7LIC | - / - | 3 | Partial |
| 05-09 01:44 | 80m | +14 / - | SP9YGD | - / - | 3 | Partial |
| 05-09 01:42 | 80m | +2 / -8 | EA1CQ | -12 / -14 | 6 | ✓ Complete |
| 05-09 01:38 | 80m | -4 / - | EA7GXD | - / - | 2 | Partial |
| 05-09 01:37 | 80m | - / -17 | SP9YGD | -20 / - | 2 | Partial |
| 05-09 01:35 | 80m | -14 / - | F5SJF | - / - | 5 | Partial |
| 05-09 01:35 | 80m | +4 / - | SP6NIV | - / - | 8 | Partial |
| 05-09 01:34 | 80m | +12 / -15 | OK1XV | -17 / -8 | 3 | Partial |
| 05-09 01:34 | 80m | +16 / -9 | HA7TM | -18 / -12 | 6 | ✓ Complete |
| 05-09 01:33 | 80m | +8 / - | 9A5E | - / - | 4 | Partial |
| 05-09 01:32 | 80m | -2 / - | IK4LZH | - / -20 | 2 | ✓ Confirmed |
| 05-09 01:31 | 80m | +16 / - | OK4FX | - / - | 2 | Partial |
| 05-09 01:30 | 80m | -7 / - | F5SJF | - / - | 3 | Partial |
| 05-09 01:30 | 80m | - / - | CE6UFF | -14 / - | 3 | Partial |
| 05-09 01:29 | 80m | -8 / - | MM0KPV | - / -12 | 2 | Partial |
| 05-09 01:28 | 80m | +4 / -13 | EA5AQB | -17 / -14 | 4 | ✓ Complete |
| 04-28 19:39 | 20m | -5 / - | F4NDG | - / - | 3 | Partial |
| 04-28 19:14 | 20m | +13 / - | F6BIA | - / -4 | 3 | ✓ Confirmed |
| 04-28 01:21 | 80m | +8 / - | OZ1HDF | - / -10 | 2 | ✓ Confirmed |
| 04-28 01:21 | 80m | -9 / - | HB9HVG | - / - | 6 | Partial |
| 04-28 01:08 | 40m | +7 / - | F4CQS | - / -11 | 2 | Partial |
| 04-28 01:02 | 40m | +7 / - | IW0RLC | - / - | 4 | Partial |
| 04-28 01:00 | 40m | -10 / - | IZ8PPI | - / -22 | 3 | Partial |
| 04-28 00:52 | 40m | -8 / - | A61OK | - / -16 | 5 | Partial |
| 04-27 23:53 | 20m | - / - | OH1CIN | -14 / - | 2 | Partial |
| 04-27 23:51 | 20m | - / -12 | PD0IFI | -8 / - | 4 | ✓ Confirmed |
| 04-27 23:48 | 20m | - / - | <...> | +3 / - | 3 | Partial |
| 04-27 23:37 | 20m | -2 / - | A71UN | - / -9 | 4 | ✓ Confirmed |
| 04-21 22:22 | 20m | -12 / - | A61CK | - / -14 | 2 | ✓ Confirmed |
| 04-21 22:03 | 40m | -12 / - | EA5RY | - / -17 | 2 | ✓ Confirmed |
Station Log
20m
UTC dB Freq Message 203545 -9 1029 WO4SFA DF5EI -15 204915 -11 421 F6FDY WO4SFA FM05 174945 -19 733 WO4SFA VE9NM RRR 201400 -14 880 WO4SFA PD1DTH -18 (x2) 231345 +1 940 WO4SFA A61CK -15 (x3) 231700 -16 691 K4XN WO4SFA FM05 (x3) 232600 -13 997 PD0MDX WO4SFA FM05 233100 +0 475 WO4SFA AO7RKB -10 (x2) 233200 -7 2993 WO4SFA OK4FX JO70
40m
UTC dB Freq Message 023030 -14 1533 WO4SFA IW9FRA JM68 023045 -11 408 KM4SXE WO4SFA R+04 023100 -15 1533 WO4SFA IW9FRA JM68 (x6) 023345 -19 785 WB3FAA WO4SFA FM05 023400 -6 1533 WO4SFA IW9FRA JM68 (x2) 023530 -22 1287 WO4SFA WB3FAA +08 023700 -10 408 KC5AOI WO4SFA R-08 222900 +2 1173 WO4SFA F4JVF -16 (x2)
10m
UTC dB Freq Message 193830 -7 802 WO4SFA PU2UTY -18 193845 -14 938 WO4SFA PP2GM -19 193900 -5 802 WO4SFA PU2UTY -18 193915 -15 937 WO4SFA PP2GM RR73
80m
UTC dB Freq Message 014845 -10 1316 WO4SFA MM0KPV -11 014915 +13 2134 WO4SFA 9A5E JN75 (x3) 015045 -8 1325 WO4SFA F5RRS JN36 015115 +15 2134 WO4SFA 9A5E JN75 015130 -21 831 KI5DZY WO4SFA -18 015145 +11 2134 WO4SFA 9A5E JN75 015230 -23 832 KI5DZY WO4SFA -18 015415 -24 832 WE8M WO4SFA FM05 015830 +18 2754 WO4SFA OK4FX JO70 (x3) 020030 -1 1628 WO4SFA SM5DIC JO89 (x2)