W4UM — FT8 station from United States
Amateur radio station W4UM operating from United States. 141 FT8 spots received at SO8OO WebSDR, active on 160m, 80m, 60m, 40m, 20m, over 7 days, best SNR +16 dB. Heard between 2026-04-20 and 2026-06-02.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
141
Total spots
0
CQ calls
7
Days active
-1 dB
Avg SNR
Bands
80m
20m
60m
40m
160m
First seen: 2026-04-20
Last seen: 2026-06-02 22:43 UTC
Last seen: 2026-06-02 22:43 UTC
Frequent QSO partners observed at SO8OO
Stations W4UM worked most often, as logged from our receiver:
Activity Heatmap
Location
QSO Logbook (as observed from SO8OO)
Format: our rx / partner reports
| Time | Band | W4UM | Partner | Partner SNR | Msgs | |
|---|---|---|---|---|---|---|
| 06-05 01:27 | 60m | - / - | KB2KBC | +2 / - | 2 | ✓ Confirmed |
| 06-05 01:25 | 60m | - / -9 | 3G0Z | +1 / - | 2 | ✓ Confirmed |
| 06-03 00:42 | 60m | -4 / -17 | OJ0Z | -3 / +2 | 5 | ✓ Complete |
| 06-02 01:53 | 60m | - / -15 | ON1JP | +2 / - | 2 | ✓ Confirmed |
| 06-02 01:52 | 60m | -10 / -4 | F4FPR | +3 / - | 3 | ✓ Verified |
| 06-02 01:50 | 60m | -14 / -18 | OJ0MN | +3 / - | 4 | ✓ Verified |
| 05-15 22:21 | 20m | -2 / - | UR5QW | - / -6 | 3 | Partial |
| 05-15 22:20 | 20m | - / -4 | US2YW | -3 / - | 2 | ✓ Confirmed |
| 05-15 22:18 | 20m | - / -11 | G5IAN | +3 / - | 3 | Partial |
| 05-15 22:16 | 20m | -10 / - | SV1HFE | - / - | 2 | Partial |
| 05-15 22:15 | 20m | - / -13 | DH5YBE | +4 / - | 2 | ✓ Confirmed |
| 05-15 22:15 | 20m | -16 / -16 | EA4HTI | +6 / -13 | 4 | Partial |
| 05-15 22:14 | 20m | +12 / -16 | UR5QW | 0 / -6 | 7 | Partial |
| 05-15 22:13 | 20m | - / -9 | 4Z1GY | 0 / - | 2 | ✓ Confirmed |
| 05-15 22:13 | 20m | -6 / - | SV1HFE | - / - | 2 | Partial |
| 05-15 22:12 | 20m | - / -18 | DL7ARV | -2 / - | 2 | ✓ Confirmed |
| 05-15 22:11 | 20m | - / -23 | VE7LGP | -3 / - | 3 | ✓ Confirmed |
| 05-15 22:09 | 20m | -13 / -11 | JY5IB | -3 / -10 | 2 | Partial |
| 04-27 00:25 | 60m | -8 / - | SP7ICE | - / - | 2 | Partial |
| 04-27 00:20 | 60m | -2 / -21 | DL6AST | -10 / -4 | 11 | ✓ Complete |
| 04-27 00:17 | 60m | +12 / -16 | Z66SP | -9 / +8 | 5 | ✓ Complete |
| 04-26 02:08 | 160m | +4 / - | LA7QIA | - / -17 | 3 | ✓ Confirmed |
| 04-25 00:54 | 20m | - / -5 | SV9TLU | -12 / - | 4 | Partial |
| 04-24 23:13 | 40m | -5 / -4 | EA5W | -12 / -5 | 4 | ✓ Complete |
| 04-24 23:12 | 40m | -14 / - | EA5DE | -12 / - | 4 | ✓ Verified |
| 04-24 23:11 | 40m | -23 / -1 | OM0RX | -10 / +1 | 3 | ✓ Complete |
| 04-24 23:11 | 40m | -5 / - | RA3PFS | - / -14 | 3 | Partial |
| 04-24 23:10 | 40m | -2 / - | DG2MFB | - / - | 2 | Partial |
| 04-24 23:10 | 40m | -17 / - | EC3A | -13 / - | 2 | ✓ Verified |
| 04-24 23:09 | 40m | - / -7 | DL7ARV | -11 / - | 2 | ✓ Confirmed |
| 04-24 23:08 | 40m | -1 / -17 | IW9FRA | -10 / +1 | 5 | ✓ Complete |
| 04-24 23:07 | 40m | +13 / -3 | SV8TCP | -13 / - | 4 | ✓ Complete |
| 04-24 23:06 | 40m | - / -12 | EA4HTI | -10 / - | 2 | ✓ Confirmed |
| 04-24 23:03 | 40m | - / +3 | MD0CCE | -9 / - | 4 | ✓ Confirmed |
| 04-21 00:43 | 80m | +6 / - | PI4DX | - / +9 | 4 | Partial |
| 04-21 00:41 | 80m | -14 / - | F5NNN | - / - | 4 | ✓ Confirmed |
| 04-21 00:41 | 80m | -4 / - | R7BN | - / - | 15 | Partial |
| 04-21 00:40 | 80m | -8 / - | DL9KM | - / - | 5 | Partial |
| 04-21 00:40 | 80m | +10 / -10 | UA4FKT | -10 / -6 | 9 | ✓ Complete |
| 04-21 00:37 | 80m | +3 / - | R6OD | - / -13 | 13 | ✓ Confirmed |
| 04-21 00:37 | 80m | -2 / - | R6ZBQ | - / -15 | 8 | ✓ Confirmed |
| 04-21 00:37 | 80m | +3 / - | UR4QWW | - / - | 6 | ✓ Confirmed |
| 04-21 00:36 | 80m | -23 / -13 | MM0KPV | -5 / - | 5 | ✓ Verified |
| 04-21 00:36 | 80m | +10 / -4 | RC6OU | -4 / -11 | 9 | ✓ Complete |
| 04-21 00:36 | 80m | +8 / - | UA4FKT | - / - | 2 | Partial |
| 04-21 00:35 | 80m | -4 / - | SP9TBT | - / - | 2 | Partial |
| 04-21 00:32 | 80m | +8 / -15 | SQ9LOJ | -6 / - | 12 | ✓ Complete |
| 04-21 00:06 | 60m | - / -14 | 3X3A | -10 / - | 4 | ✓ Confirmed |
Station Log
60m
UTC dB Freq Message 015200 -10 719 W4UM F4FPR IN88 015215 +3 719 F4FPR W4UM -04 (x2) 015315 +4 719 ON1JP W4UM R-15 (x2) 015445 +0 854 W4EBB W4UM +02 004215 -1 854 OJ0Z W4UM EL97 004230 -4 1115 W4UM OJ0Z +02 004245 -5 853 OJ0Z W4UM R-17 004300 -3 1114 W4UM OJ0Z RR73 004315 -2 854 OJ0Z W4UM 73 012545 +1 695 3G0Z W4UM R-09 (x2) 012745 +3 695 KB2KBC W4UM +00 (x2)
20m
UTC dB Freq Message 221630 +10 2586 W4UM UR5QW -09 221645 +6 787 EA4HTI W4UM -16 221700 +10 2585 W4UM UR5QW -09 221700 -12 2865 W4UM SV1HFE KM18 221745 -1 786 UR5QW W4UM R-16 (x2) 221845 +4 760 G5IAN W4UM R-11 (x3) 222045 -3 760 US2YW W4UM -04 (x2) 222130 -1 2590 W4UM UR5QW -06 (x3) 222245 +0 760 DL3MIB W4UM RR73
160m
UTC dB Freq Message 020830 +3 1361 W4UM LA7QIA -17 (x3)
40m
UTC dB Freq Message 231100 -5 1530 W4UM DG2MFB JN49 231130 -7 2124 W4UM RA3PFS KO84 231145 -10 1529 OM0RX W4UM -01 231200 -23 1529 W4UM OM0RX R+01 231215 -10 1529 OM0RX W4UM RR73 231230 -14 1528 W4UM EA5DE IM99 (x2) 231315 -11 1529 EA5W W4UM -04 231330 -5 2123 W4UM RA3PFS R-14 (x2) 231400 -5 598 W4UM EA5W R-05 231415 -12 1529 EA5DE W4UM RR73 231430 -14 1528 W4UM EA5DE 73 231430 -5 598 W4UM EA5W R-05 231445 -12 1528 EA5W W4UM RR73
80m
UTC dB Freq Message 004400 +9 2261 W4UM UA4FKT LO23 004400 +2 980 W4UM PI4DX JO21 (x2) 004430 -4 1361 W4UM R7BN LN05 004515 -12 2262 UA4FKT W4UM -10 004530 +5 2261 W4UM UA4FKT R-06 004530 -6 1361 W4UM R7BN LN05 004545 -8 2262 UA4FKT W4UM RR73 004600 -7 1362 W4UM R7BN LN05 004600 +9 2261 W4UM UA4FKT 73 004630 -5 1361 W4UM R7BN LN05 (x5)