R6YBU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R6YBU, decoded by SO8OO in southeastern Poland. 681 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.
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 681 FT8 messages attributed to R6YBU as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 20 m (31%) and 10 m (20%). Most decodes (89%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10.6 dB.
Overview
Bands
Last attributed message: 2026-09-15 18:03 UTC
Observed FT8 message patterns
- Attributed sample
- 681 messages
- Active dates
- 34 UTC dates
- Estimated median S/N
- -10.6 dB
- Estimated 10th-90th percentile
- -19 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 197, moderate (-15 to -9 dB) 194, strong (≥ -8 dB) 290.
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 R6YBU 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 R6YBU
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
- LN04 · 305 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,566 km (approx.)
- Last such locator decoded
- 2026-09-15 17:57 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 | R6YBU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 18:02 | 80m | -14 / -6 | R6AC | -11 / - | 3 | ✓ Closing observed |
| 09-15 17:54 | 80m | -8 / -17 | UZ5DM | +10 / -11 | 17 | ✓ Full exchange observed |
| 09-15 17:52 | 80m | -12 / - | R6ZB | -1 / -10 | 3 | ✓ Closing observed |
| 09-15 17:47 | 80m | -8 / -12 | RU3AMO | -1 / -6 | 5 | ✓ Full exchange observed |
| 09-15 17:41 | 80m | -4 / -14 | RT6Z | +13 / -2 | 4 | ✓ Full exchange observed |
| 09-15 17:40 | 80m | - / -19 | UA3GIU | +1 / - | 2 | ✓ Closing fragment |
| 09-15 17:33 | 80m | -10 / -6 | RW2Z | 0 / -7 | 6 | ✓ Full exchange observed |
| 09-15 17:28 | 80m | -24 / -12 | R6DOP | -8 / - | 6 | ✓ Closing observed |
| 09-15 17:26 | 80m | - / -12 | R3YAU | +6 / - | 2 | Partial capture |
| 09-15 17:26 | 80m | - / -16 | RX6DA | -1 / - | 7 | ✓ Closing fragment |
| 09-15 17:25 | 80m | -13 / +1 | R6ML | -4 / -2 | 6 | ✓ Full exchange observed |
| 09-15 17:25 | 80m | - / -6 | UA3GJM | +5 / - | 2 | Partial capture |
| 09-15 17:24 | 80m | -5 / -15 | R3BDQ | +4 / -3 | 6 | ✓ Full exchange observed |
| 09-15 17:23 | 80m | -14 / -9 | UB4CLH | -17 / -11 | 2 | Partial capture |
| 09-14 15:40 | 40m | - / - | R3KJF | -4 / - | 2 | Partial capture |
| 09-14 15:39 | 40m | -6 / - | UN3P | - / -14 | 3 | ✓ Closing fragment |
| 09-14 15:38 | 40m | -1 / 0 | UB1CDJ | -16 / -4 | 4 | ✓ Full exchange observed |
| 09-14 15:34 | 40m | -9 / -11 | LA8ENA | -4 / - | 3 | Partial capture |
| 09-14 15:33 | 40m | - / - | DJ0MAB | -10 / - | 3 | Partial capture |
| 09-14 15:29 | 40m | -6 / - | UA3NFG | - / -3 | 2 | Partial capture |
| 09-14 15:26 | 40m | - / -11 | RM4N | -16 / - | 2 | ✓ Closing fragment |
| 09-14 15:19 | 40m | - / - | DL6UM | -1 / - | 8 | Partial capture |
| 09-14 15:18 | 40m | -4 / - | RA6OY | -5 / +5 | 10 | Partial capture |
| 09-14 15:18 | 40m | - / - | UI6O | -19 / - | 3 | ✓ Closing fragment |
| 09-14 15:16 | 40m | -17 / - | RA6OY | +1 / +4 | 2 | Partial capture |
| 09-14 15:15 | 40m | -15 / - | RV9CX | - / -6 | 4 | ✓ Closing fragment |
| 09-14 15:14 | 40m | -18 / - | RD6OW | - / +4 | 2 | Partial capture |
| 09-14 15:13 | 40m | -5 / +5 | R6UBM | -5 / 0 | 5 | ✓ Full exchange observed |
| 09-14 14:51 | 40m | -8 / -5 | SN31ROT | +4 / -13 | 4 | ✓ Full exchange observed |
| 09-14 14:50 | 40m | -12 / - | RZ9A | - / - | 2 | Partial capture |
| 09-14 14:48 | 40m | -9 / - | BG9IUK | - / - | 2 | Partial capture |
| 09-14 14:45 | 40m | +2 / - | BI6AN | - / - | 2 | Partial capture |
| 09-14 14:09 | 40m | -7 / -11 | HA9OA | +2 / - | 3 | ✓ Closing observed |
| 09-14 14:06 | 40m | -13 / - | UN9LBC | - / - | 3 | Partial capture |
| 09-14 14:04 | 40m | -14 / - | R8AAU | - / -14 | 3 | ✓ Closing fragment |
| 09-14 14:02 | 40m | -10 / - | UA9MRS | - / - | 2 | Partial capture |
| 09-14 13:56 | 40m | -8 / -1 | RN3QTS | -10 / - | 4 | ✓ Closing observed |
| 09-14 13:55 | 40m | -11 / - | UK8OM | - / -8 | 2 | Partial capture |
| 09-14 13:51 | 40m | -12 / -2 | RK3YWA | -12 / -13 | 13 | ✓ Full exchange observed |
| 09-14 13:49 | 40m | -16 / -8 | R70SAB | -4 / -3 | 4 | ✓ Full exchange observed |
| 09-14 13:47 | 40m | -16 / - | RA7Z | - / 0 | 3 | Partial capture |
| 09-14 13:46 | 40m | -16 / - | R5GG | - / -5 | 2 | ✓ Closing fragment |
| 09-14 13:44 | 40m | -16 / - | EX7CQ | - / -8 | 4 | ✓ Closing fragment |
| 09-10 17:44 | 40m | 0 / -9 | R3OR | +18 / -3 | 3 | Partial capture |
| 09-10 17:43 | 40m | -10 / +9 | UD3T | -18 / - | 3 | ✓ Closing observed |
| 09-10 17:40 | 80m | - / -13 | UB4CLH | -6 / - | 2 | Partial capture |
| 09-10 17:34 | 80m | -20 / -2 | R6ODX | +4 / +1 | 3 | ✓ Full exchange observed |
| 09-10 17:34 | 80m | -12 / - | R6OQ | -7 / -11 | 3 | Partial capture |
| 09-10 17:31 | 80m | - / - | RC6OZ | -6 / - | 3 | ✓ Closing fragment |
| 09-10 17:24 | 80m | -11 / -20 | R6ZCE | +11 / -8 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 175600 -5 2089 UZ5DM R6YBU LN04 175615 +9 2090 R6YBU UZ5DM -18 175630 -6 2090 UZ5DM R6YBU 73 175645 +13 2090 R6YBU UZ5DM -18 175700 -2 2651 UR4LG R6YBU LN04 175715 +6 2090 R6YBU UZ5DM -18 175730 -6 2090 UZ5DM R6YBU R-08 175745 +10 2090 R6YBU UZ5DM RRR 175800 -9 2090 UZ5DM R6YBU R-08 175815 +10 2090 R6YBU UZ5DM RRR (x2) 175900 -1 2090 UZ5DM R6YBU 73 180245 -11 1941 R6YBU R6AC R-06 180300 -14 1942 R6AC R6YBU RRR 180315 -11 1941 R6YBU R6AC 73
UTC dB Audio Message 153330 -11 1605 R6YBU DJ0MAB JN49 (x2) 153415 -9 1743 LA8ENA R6YBU LN04 153430 -10 1605 R6YBU DJ0MAB JN49 153530 -6 1744 R6YBU LA8ENA -11 (x2) 153815 -15 1241 R6YBU UB1CDJ +00 153830 +3 1241 UB1CDJ R6YBU R-04 153845 -16 1242 R6YBU UB1CDJ RR73 153900 -5 1241 UB1CDJ R6YBU 73 153930 -3 2061 UN3P R6YBU LN04 (x3) 154045 -6 2118 R6YBU R3KJF KO91 (x2)
UTC dB Audio Message 170230 -4 724 EC5M R6YBU LN04 170415 +7 1029 LY2BBF R6YBU LN04 (x2) 170630 -13 1518 <...> R6YBU LN04 170745 +4 1503 R6YBU PC2K -06 170745 -2 2175 DL3EBJ R6YBU LN04 170800 +2 2175 R6YBU DL3EBJ +00 170815 +9 1503 R6YBU PC2K -06 170815 +0 2175 DL3EBJ R6YBU R-14 170830 +3 2175 R6YBU DL3EBJ RR73 170845 +9 1503 R6YBU PC2K -06 (x2) 171000 -8 630 R6YBU DK8HC JO42 (x3)
UTC dB Audio Message 152130 +4 439 R6YBU F5NAA -14 (x2) 132600 -7 2641 UZ5DM R6YBU LN04 142145 -16 1253 VU2ATN R6YBU R-16 (x2) 142900 -21 1790 V51F R6YBU LN04 143345 -22 1554 PD1RMB R6YBU R-20 (x2) 143600 -18 1053 HA3HM R6YBU R-20 (x2) 143845 -22 1234 LZ1EV R6YBU LN04 (x2) 144800 -15 1293 YG2AUD R6YBU LN04 144915 -10 1741 R6YBU II7MGBT -14 144930 -22 1741 II7MGBT R6YBU R-13
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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