5B4VL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 5B4VL, decoded by SO8OO in southeastern Poland. 263 related FT8 messages, 113 CQ messages, observed on 160m, 80m, 60m, 40m, 20m, 10m, across 11 UTC dates. Heard between 2026-05-29 and 2026-08-19.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
Frequent QSO partners observed at SO8OO
Stations 5B4VL worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by 5B4VL
Approximate centre of KM64, decoded 2026-08-19 03:14 UTC. A transmitted locator is not proof of the operator's permanent location.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | 5B4VL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-19 03:12 | 60m | +4 / - | W4CNA | - / -16 | 2 | Partial capture |
| 08-19 03:09 | 60m | - / - | DL1UDO | -18 / - | 2 | Partial capture |
| 08-19 03:06 | 60m | +7 / - | AI5WW | - / -17 | 3 | ✓ Closing fragment |
| 08-19 03:05 | 60m | +6 / - | KS3O | - / -10 | 2 | ✓ Closing fragment |
| 08-19 03:01 | 60m | +4 / - | XE1KK | - / -11 | 3 | Partial capture |
| 08-19 02:58 | 60m | +2 / - | VA3GRC | - / -1 | 2 | Partial capture |
| 08-19 02:53 | 60m | +3 / - | K4SOO | - / -2 | 7 | ✓ Closing fragment |
| 08-19 02:50 | 60m | +2 / - | WA0YPC | - / -4 | 2 | ✓ Closing fragment |
| 08-19 02:48 | 60m | -2 / - | N3XX | - / -3 | 2 | ✓ Closing fragment |
| 08-19 02:46 | 60m | -4 / - | W1NG | - / +5 | 2 | ✓ Closing fragment |
| 08-13 03:37 | 60m | -2 / - | W3FAY | - / -21 | 2 | ✓ Closing fragment |
| 08-13 03:33 | 60m | 0 / - | AK4T | - / -23 | 2 | Partial capture |
| 08-13 03:18 | 60m | -2 / - | KO4ZHO | - / -20 | 2 | ✓ Closing fragment |
| 08-13 03:17 | 60m | 0 / - | N2CR | - / -12 | 2 | ✓ Closing fragment |
| 08-13 03:14 | 60m | -2 / - | K4RCW | - / -10 | 2 | ✓ Closing fragment |
| 08-13 03:12 | 60m | 0 / - | KD2BRV | - / -10 | 3 | ✓ Closing fragment |
| 08-13 03:07 | 60m | -3 / - | AG3Z | - / -2 | 2 | ✓ Closing fragment |
| 08-13 03:05 | 60m | - / - | PB8DX | -3 / - | 17 | Partial capture |
| 08-13 03:05 | 60m | -2 / - | W1NG | - / -19 | 2 | ✓ Closing fragment |
| 08-13 03:04 | 60m | -2 / - | LZ1GC | -3 / - | 3 | Partial capture |
| 08-13 02:35 | 60m | +4 / -16 | AA6KJ | -4 / +4 | 4 | ✓ Full exchange observed |
| 08-13 02:19 | 60m | - / - | F4FPR | -11 / - | 5 | Partial capture |
| 08-13 02:16 | 60m | +3 / - | W4EGS | - / -10 | 6 | ✓ Closing fragment |
| 08-11 18:40 | 10m | - / - | IK4LZH | -7 / - | 3 | Partial capture |
| 08-11 03:59 | 20m | -9 / - | ZL1PB | - / -4 | 2 | ✓ Closing fragment |
| 08-11 03:56 | 20m | -10 / - | AG3Z | - / -25 | 2 | Partial capture |
| 08-11 03:55 | 20m | -13 / - | W9JOY | - / +8 | 2 | ✓ Closing fragment |
| 08-11 03:54 | 20m | -8 / - | K4AKA | - / +5 | 2 | ✓ Closing fragment |
| 08-11 03:52 | 20m | -8 / - | N8TUP | - / -5 | 2 | ✓ Closing fragment |
| 08-11 03:48 | 20m | -9 / - | WA9JOQ | - / -15 | 3 | Partial capture |
| 08-11 03:47 | 20m | -12 / - | K5SMH | - / -25 | 2 | Partial capture |
| 08-11 03:39 | 20m | - / - | DL1R | -2 / - | 2 | Partial capture |
| 08-11 03:38 | 20m | -17 / - | W7KEY | - / -14 | 2 | Partial capture |
| 08-10 03:14 | 60m | -3 / +2 | DG1VT | 0 / - | 3 | ✓ Closing observed |
| 08-10 03:12 | 60m | -4 / +1 | DJ2KP | +6 / +10 | 5 | ✓ Full exchange observed |
| 08-10 03:10 | 60m | -6 / - | KW4DI | - / -13 | 2 | ✓ Closing fragment |
| 08-10 03:09 | 60m | -2 / - | K5UR | - / -10 | 2 | ✓ Closing fragment |
| 08-10 03:08 | 60m | - / - | 4L7T | -7 / - | 2 | Partial capture |
| 08-10 03:06 | 60m | -1 / - | KZ4ZZ | - / -5 | 3 | ✓ Closing fragment |
| 08-10 03:02 | 60m | 0 / -2 | DL3AMW | -15 / +10 | 5 | ✓ Full exchange observed |
| 08-10 02:59 | 60m | +3 / - | W2KA | - / -18 | 3 | ✓ Closing fragment |
| 08-10 02:58 | 60m | -1 / -5 | OH1CMV | 0 / -5 | 5 | ✓ Full exchange observed |
| 08-10 02:57 | 60m | +2 / -2 | PE1MHY | -11 / +2 | 4 | ✓ Full exchange observed |
| 08-10 02:55 | 60m | +3 / - | IS0BOZ | -14 / - | 4 | ✓ Closing observed |
| 08-10 02:53 | 60m | +1 / - | N9UA | - / -19 | 4 | ✓ Closing fragment |
| 08-10 02:52 | 60m | +2 / - | AA8TT | - / -16 | 2 | ✓ Closing fragment |
| 08-10 02:51 | 60m | -3 / - | NG5U | - / -1 | 2 | ✓ Closing fragment |
| 08-10 02:48 | 60m | +3 / -4 | W4EBB | -19 / +1 | 5 | ✓ Full exchange observed |
| 08-10 02:46 | 60m | +4 / - | K9ATX | - / -16 | 3 | ✓ Closing fragment |
| 08-10 02:45 | 60m | +2 / - | AF4HS | - / -13 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 030715 +6 747 AI5WW 5B4VL -17 (x2) 030815 +6 747 CQ DX 5B4VL KM64 (x2) 030900 -17 1518 5B4VL DL1UDO JO31 030915 +4 747 CQ DX 5B4VL KM64 030930 -18 1518 5B4VL DL1UDO JO31 030945 +5 747 CQ DX 5B4VL KM64 031015 +0 747 WA2HIP 5B4VL -10 031115 +0 747 CQ DX 5B4VL KM64 (x2) 031215 +3 747 W4CNA 5B4VL -16 (x2) 031415 +6 747 CQ DX 5B4VL KM64 (x2)
UTC dB Audio Message 133315 +5 1104 CQ DX 5B4VL KM64 (x2) 133415 +5 1104 YD0AZZ 5B4VL +25 (x2) 133545 +2 1103 CQ DX 5B4VL KM64 133615 +9 1104 YC2ULK 5B4VL +11 (x2) 133715 +5 1104 CQ DX 5B4VL KM64 (x3) 133930 +5 1104 BD5CAM 5B4VL -08 134100 +6 1104 CQ DX 5B4VL KM64 184015 -9 490 5B4VL IK4LZH JN54 (x3)
UTC dB Audio Message 035115 -9 1091 AG5PC 5B4VL +00 035215 -9 1091 N8TUP 5B4VL -05 (x2) 035345 -8 1090 CQ DX 5B4VL KM64 035415 -10 1090 K4AKA 5B4VL +05 (x2) 035545 -14 1090 W9JOY 5B4VL +08 (x2) 035645 -11 1091 AG3Z 5B4VL -25 (x2) 035845 -12 1090 CQ DX 5B4VL KM64 035915 -9 1090 ZL1PB 5B4VL R-04 (x2) 040045 -8 1090 KK6UGA 5B4VL R-07 040145 -9 1090 N9KE 5B4VL 73
UTC dB Audio Message 031430 -3 1052 5B4VL US1VM KN68 (x2) 031600 -11 2480 5B4VL RD6ZQ +01 031600 -3 1052 5B4VL US1VM KN68 031630 -9 1252 5B4VL UA4FKT LO23 031630 -6 1052 5B4VL US1VM KN68 031700 -13 1252 5B4VL UA4FKT LO23 031815 -20 1252 CQ 5B4VL KM64 a1 032130 -8 1252 5B4VL UA4FKT LO23 (x2) 032200 -19 1510 5B4VL EB1LA IN73 032230 -13 1252 5B4VL UA4FKT LO23 032230 -20 1510 5B4VL EB1LA IN73
UTC dB Audio Message 015545 -4 1965 5B4VL 9A5E JN75 (x3) 020315 -8 1010 CQ 5B4VL KM64 (x6)
UTC dB Audio Message 020430 -15 2145 5B4VL PY5XT GG54 020445 +3 1017 CQ 5B4VL KM64 020530 -14 2145 5B4VL PY5XT GG54 020530 +3 1284 5B4VL SQ6ELK -06 020530 +12 2796 5B4VL DL1BBO JO43 020545 +7 1017 CQ 5B4VL KM64 020600 -18 1017 5B4VL PY5XT GG54 020600 +4 1284 5B4VL SQ6ELK -06 020600 +1 689 5B4VL YL3AVN KO17 020600 +7 2796 5B4VL DL1BBO JO43 020630 -18 1016 5B4VL PY5XT GG54 020630 +1 2796 5B4VL DL1BBO JO43 020700 -19 1017 5B4VL PY5XT GG54 020700 -3 689 5B4VL YL3AVN KO17 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.