PA4B — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PA4B, decoded by SO8OO in southeastern Poland. 346 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-14.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 346 FT8 messages attributed to PA4B as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (37%), followed by 60 m (36%) and 40 m (14%). Most decodes (84%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-09-14 22:00 UTC
Observed FT8 message patterns
- Attributed sample
- 346 messages
- Active dates
- 27 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -19 to 0 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 67, moderate (-15 to -9 dB) 117, strong (≥ -8 dB) 162.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with PA4B in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to PA4B
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JO22 · 175 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,201 km (approx.)
- Last such locator decoded
- 2026-09-14 22:00 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
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 | PA4B S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 21:52 | 40m | -5 / - | JY5IB | -21 / -12 | 4 | ✓ Closing observed |
| 09-14 21:47 | 40m | - / -9 | II0IHMG | +3 / - | 2 | Partial capture |
| 09-14 21:47 | 40m | -4 / - | SM/DB9LG | - / -9 | 3 | Partial capture |
| 09-14 21:44 | 40m | -9 / - | SV8/F6BLP | - / -8 | 2 | Partial capture |
| 09-14 21:41 | 40m | - / -17 | IU1VQG | +4 / - | 4 | ✓ Closing fragment |
| 09-14 21:40 | 40m | -5 / - | SV8/F6BLP | - / -7 | 3 | Partial capture |
| 09-13 22:20 | 60m | 0 / -24 | DL1UDO | 0 / -19 | 6 | ✓ Full exchange observed |
| 09-13 22:18 | 60m | -5 / -22 | F5HNQ | -11 / -13 | 4 | ✓ Full exchange observed |
| 09-13 22:13 | 60m | -6 / - | VO1HP | - / -19 | 2 | ✓ Closing fragment |
| 09-13 22:08 | 60m | +1 / - | VO1HP | - / - | 2 | Partial capture |
| 09-13 22:01 | 60m | -3 / - | SP5MIG | - / -26 | 11 | ✓ Closing fragment |
| 09-13 21:58 | 60m | -9 / - | MM5DWW | - / -13 | 3 | ✓ Closing fragment |
| 09-13 21:55 | 60m | -2 / -16 | VE1YX | -18 / -6 | 5 | ✓ Full exchange observed |
| 09-13 21:54 | 60m | -3 / -3 | EH1SDC | -13 / -2 | 4 | ✓ Full exchange observed |
| 09-13 21:35 | 160m | - / -23 | SP9ENV | -4 / - | 4 | ✓ Closing fragment |
| 09-13 21:33 | 160m | - / -8 | DL7MDX | -10 / - | 3 | ✓ Closing fragment |
| 09-13 21:30 | 160m | - / -14 | OK1DXR | +8 / - | 2 | Partial capture |
| 09-12 21:59 | 60m | 0 / - | G4DZE | - / -6 | 3 | ✓ Closing fragment |
| 09-12 21:56 | 60m | -3 / -1 | EA4HPY | -8 / +1 | 6 | ✓ Full exchange observed |
| 09-12 21:53 | 60m | -4 / -11 | EA3FCQ | -9 / -3 | 5 | ✓ Full exchange observed |
| 09-12 21:51 | 60m | -4 / -16 | ER1CW | -12 / -15 | 5 | ✓ Full exchange observed |
| 09-12 21:48 | 60m | -6 / - | OZ7FOC | - / -1 | 3 | ✓ Closing fragment |
| 09-12 21:44 | 60m | -4 / -13 | SV1DZB | -10 / -15 | 6 | ✓ Full exchange observed |
| 09-12 21:42 | 60m | -6 / +2 | DL9KM | -21 / -9 | 7 | ✓ Full exchange observed |
| 09-12 21:42 | 60m | -5 / - | LB5WB | +4 / - | 3 | ✓ Closing observed |
| 09-12 21:41 | 60m | -4 / - | SM7HWD | -7 / -5 | 4 | ✓ Closing observed |
| 09-12 21:40 | 60m | -5 / - | TM4GGR | - / -8 | 2 | ✓ Closing fragment |
| 09-12 21:38 | 60m | -6 / -9 | SQ3TR | -5 / -1 | 5 | ✓ Full exchange observed |
| 09-12 21:36 | 60m | -6 / - | II7IABB | - / -2 | 2 | Partial capture |
| 09-12 21:33 | 60m | -2 / - | TF8KW | - / -12 | 4 | ✓ Closing fragment |
| 09-12 21:31 | 60m | -11 / -7 | IK5EEA | -2 / 0 | 5 | ✓ Full exchange observed |
| 09-12 21:29 | 60m | -2 / 0 | HB9EFK | +7 / +1 | 6 | ✓ Full exchange observed |
| 08-26 22:21 | 80m | - / -13 | G6PWS | -4 / - | 3 | ✓ Closing fragment |
| 08-26 22:20 | 80m | - / - | LB9ZG | -8 / - | 2 | ✓ Closing fragment |
| 08-26 22:08 | 80m | -12 / -24 | UA4FKT | +5 / -19 | 6 | ✓ Full exchange observed |
| 08-26 22:07 | 80m | -14 / - | MW7GQB | - / -6 | 3 | ✓ Closing fragment |
| 08-26 21:59 | 80m | - / -18 | DO9BAU | -2 / - | 6 | ✓ Closing fragment |
| 08-26 21:57 | 80m | -17 / -4 | TF3VS | -4 / - | 3 | ✓ Closing observed |
| 08-26 21:50 | 80m | -14 / - | TF3VS | - / - | 4 | Partial capture |
| 08-26 21:46 | 80m | -24 / -8 | M7CWF | -14 / -18 | 5 | ✓ Full exchange observed |
| 08-20 16:56 | 20m | 0 / - | ZS6HON | - / -8 | 3 | ✓ Closing fragment |
| 08-17 17:22 | 20m | -15 / - | E25IJJ | - / -3 | 2 | ✓ Closing fragment |
| 08-14 09:12 | 20m | -8 / - | <...> | - / +2 | 4 | Partial capture |
| 08-13 12:35 | 10m | -1 / - | <...> | - / -16 | 5 | Partial capture |
| 08-13 12:27 | 10m | -8 / - | LY2EW | - / -1 | 2 | ✓ Closing fragment |
| 08-13 12:26 | 10m | -12 / - | UR1CCT | - / -7 | 2 | ✓ Closing fragment |
| 08-13 12:23 | 10m | -10 / - | <...> | - / -12 | 5 | Partial capture |
| 08-13 08:43 | 10m | - / - | F5CUN | -6 / - | 3 | Partial capture |
| 08-13 08:38 | 10m | - / -23 | EN35UKR | -6 / - | 2 | Partial capture |
| 08-10 21:35 | 20m | -11 / - | <...> | - / -8 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 214615 -7 1993 II8IHBC PA4B JO22 214715 -3 1584 SM/DB9LG PA4B JO22 214730 +2 903 PA4B II0IHMG -09 214745 -2 1584 SM/DB9LG PA4B R-09 214800 +4 903 PA4B II0IHMG -09 214815 -6 1584 SM/DB9LG PA4B R-08 215215 -11 2001 JY5IB PA4B JO22 (x2) 215300 -21 1398 PA4B JY5IB RR73 215315 -4 2001 JY5IB PA4B 73 215630 +3 2501 UA9JTJ/9 PA4B JO22 215815 -3 2001 YU65AEC PA4B JO22 215945 -7 1468 II0IHMG PA4B JO22 220015 +1 1968 DK5AN/P PA4B JO22 220100 -7 1623 PA4B II6IGTO +09
UTC dB Audio Message 221645 -10 1682 CQ PA4B JO22 (x4) 221830 -11 2244 PA4B F5HNQ IN98 221845 -5 1605 F5HNQ PA4B -13 221900 -10 2244 PA4B F5HNQ R-22 (x2) 221945 -3 1605 CQ PA4B JO22 222000 +0 1528 PA4B DL1UDO JO31 222015 -2 1605 DL1UDO PA4B -19 222030 +4 1528 PA4B DL1UDO R-24 (x2) 222115 +3 1605 DL1UDO PA4B RR73 222130 -5 1528 PA4B DL1UDO 73
UTC dB Audio Message 213045 +6 1295 PA4B OK1DXR JO60 (x2) 213315 -12 1665 PA4B DL7MDX JN59 (x3) 213530 -8 879 PA4B SP9ENV -23 (x4)
UTC dB Audio Message 220700 -14 1780 MW7GQB PA4B JO22 (x3) 220815 +6 1780 PA4B UA4FKT LO23 220830 -16 1779 UA4FKT PA4B -19 220845 +10 1779 PA4B UA4FKT LO23 220900 -7 1780 UA4FKT PA4B -16 220915 -2 1780 PA4B UA4FKT R-24 220930 -13 1802 UA4FKT PA4B RR73 222045 -12 1052 PA4B LB9ZG +14 (x2) 222145 -9 996 PA4B G6PWS IO91 (x3) 222400 +10 1575 PA4B SN40KZE -04
UTC dB Audio Message 173845 -16 1634 S09S PA4B JO22 213545 -14 1657 <...> PA4B JO22 (x6) 085515 -13 2007 OZ5ESB/LH PA4B JO22 085730 -16 2374 PA4B PI80LDN/L -09 172200 -21 1641 E25IJJ PA4B R-03 (x2) 174715 -4 1704 C91RU PA4B JO22 165630 -2 1635 ZS6HON PA4B JO22 (x3)
UTC dB Audio Message 122300 -10 1708 <...> PA4B JO22 (x5) 122630 -11 1708 UR1CCT PA4B -07 (x2) 122730 -11 1708 LY2EW PA4B -01 (x2) 123545 -2 1708 <...> PA4B JO22 (x6)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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