RK3DSW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RK3DSW, decoded by SO8OO in southeastern Poland. 296 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-19.
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 296 FT8 messages attributed to RK3DSW as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (49%), followed by 10 m (22%) and 20 m (18%). Most decodes (52%) fell within the six-hour window 23:00-05:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-09-19 04:05 UTC
Observed FT8 message patterns
- Attributed sample
- 296 messages
- Active dates
- 32 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -20 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 84, moderate (-15 to -9 dB) 122, strong (≥ -8 dB) 90.
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 RK3DSW 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 RK3DSW
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
- KO95 · 71 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,309 km (approx.)
- Last such locator decoded
- 2026-09-19 04:05 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 | RK3DSW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 17:49 | 80m | - / -11 | R3GI | +10 / - | 2 | Partial capture |
| 09-17 00:10 | 40m | - / -13 | ON5VV | -5 / - | 2 | ✓ Closing fragment |
| 09-16 18:01 | 80m | - / -22 | YO4NT | -2 / - | 2 | ✓ Closing fragment |
| 09-16 03:56 | 40m | -10 / - | LZ936BA | - / -14 | 2 | Partial capture |
| 09-16 03:53 | 40m | -12 / - | UA6LND | - / -6 | 2 | ✓ Closing fragment |
| 09-14 19:44 | 80m | -22 / -8 | RA1WP | 0 / -7 | 3 | ✓ Full exchange observed |
| 09-14 18:42 | 40m | - / 0 | RX6LMA | 0 / - | 2 | ✓ Closing fragment |
| 09-14 18:36 | 40m | - / -22 | DL50IPARC | 0 / - | 2 | Partial capture |
| 09-14 18:24 | 40m | - / -2 | EW8ME | +5 / - | 2 | ✓ Closing fragment |
| 09-13 20:53 | 80m | - / -7 | RW3YS | +14 / - | 2 | ✓ Closing fragment |
| 09-13 20:50 | 80m | -22 / - | UB3WDA | +5 / -11 | 2 | ✓ Closing observed |
| 09-13 20:49 | 80m | -18 / - | R4HHN | - / -8 | 2 | ✓ Closing fragment |
| 09-13 20:23 | 40m | - / -10 | DD6CS | -1 / - | 4 | ✓ Closing fragment |
| 09-13 20:19 | 40m | - / -16 | OT7K | +13 / - | 2 | ✓ Closing fragment |
| 09-13 19:42 | 40m | - / -11 | IK6GPZ | -1 / - | 3 | ✓ Closing fragment |
| 09-13 19:31 | 40m | - / -17 | R7DI | +1 / - | 2 | ✓ Closing fragment |
| 09-12 00:53 | 40m | - / - | DK5EO | -11 / - | 3 | Partial capture |
| 09-11 22:30 | 40m | - / -15 | R4HNW | -6 / - | 2 | ✓ Closing fragment |
| 09-11 22:16 | 40m | - / -9 | DL6MRM | -6 / - | 2 | Partial capture |
| 09-11 03:53 | 40m | -12 / +1 | RY4D | -10 / -11 | 4 | ✓ Full exchange observed |
| 09-10 18:38 | 40m | - / -17 | IK4RVY | 0 / - | 2 | Partial capture |
| 09-10 18:26 | 40m | - / -20 | IQ2AAH | 0 / - | 4 | ✓ Closing fragment |
| 09-10 01:11 | 80m | - / -21 | SM7/DL5BTE | +8 / - | 2 | Partial capture |
| 09-10 01:03 | 80m | - / -17 | SM7/DL5BTE | +13 / - | 3 | Partial capture |
| 09-09 18:47 | 40m | -14 / - | UB2FDL | -6 / -13 | 6 | ✓ Closing observed |
| 09-08 01:58 | 40m | - / -10 | IK0QDM | -20 / - | 2 | ✓ Closing fragment |
| 09-08 01:32 | 40m | - / -12 | CR7BRV | -6 / - | 2 | ✓ Closing fragment |
| 09-07 19:11 | 40m | -24 / -20 | UB2FDL | -6 / - | 4 | ✓ Closing observed |
| 09-07 18:56 | 40m | - / -16 | OZ/KD0NDU | +2 / - | 2 | Partial capture |
| 09-07 18:50 | 40m | - / -11 | SN31ROT | +4 / - | 2 | Partial capture |
| 09-07 18:45 | 40m | -8 / - | SN31ROT | - / -12 | 2 | Partial capture |
| 09-07 18:38 | 40m | -20 / - | SO100PKP | - / -9 | 2 | Partial capture |
| 09-06 19:24 | 40m | - / -17 | DG5PW | +1 / - | 4 | ✓ Closing fragment |
| 09-06 01:54 | 40m | -16 / -8 | LA1QRO | -18 / -8 | 5 | ✓ Full exchange observed |
| 09-06 01:52 | 40m | -16 / - | W3EWL/QRP | - / -11 | 3 | Partial capture |
| 09-06 01:47 | 40m | - / -11 | M9XZY | -8 / - | 3 | Partial capture |
| 09-06 01:34 | 40m | -9 / -5 | LA5LDX/P | -6 / -15 | 5 | ✓ Full exchange observed |
| 09-06 01:22 | 40m | -20 / -20 | LA1SFG/P | -5 / -19 | 6 | ✓ Full exchange observed |
| 09-06 01:19 | 40m | - / -8 | OU7M/P | +5 / - | 3 | ✓ Closing fragment |
| 09-06 01:07 | 40m | - / -19 | DG4KAI/P | -1 / - | 2 | Partial capture |
| 09-06 01:06 | 40m | -12 / - | W3EWL/QRP | - / -15 | 2 | Partial capture |
| 09-06 01:03 | 40m | -6 / - | OZ7SKB/P | - / -13 | 4 | Partial capture |
| 09-06 00:55 | 40m | - / -14 | SY1BKQ | -3 / - | 2 | ✓ Closing fragment |
| 09-06 00:29 | 80m | -15 / - | OZ7KJ/P | - / - | 4 | ✓ Closing fragment |
| 09-06 00:21 | 80m | - / -24 | SN40KZE | +17 / - | 6 | ✓ Closing fragment |
| 09-06 00:19 | 80m | -14 / -18 | OZ7KJ/P | +7 / -13 | 10 | ✓ Full exchange observed |
| 09-06 00:12 | 80m | -15 / -21 | EU1KI | +3 / -7 | 11 | ✓ Full exchange observed |
| 09-06 00:08 | 80m | - / -18 | SP9GCZ | +18 / - | 2 | ✓ Closing fragment |
| 09-05 04:23 | 40m | - / -7 | R3WDW/P | 0 / - | 2 | ✓ Closing fragment |
| 09-05 03:49 | 40m | -10 / - | R4HLO/P | - / -13 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183715 -3 1369 RK3DSW DL50IPARC R-22 184230 +2 2950 RK3DSW RX6LMA +00 (x2) 184515 -11 2512 YT2ZEZ RK3DSW -17 035315 -12 761 UA6LND RK3DSW -06 (x2) 035615 -7 613 LZ936BA RK3DSW -14 (x2) 035900 -13 613 R6MG RK3DSW -12 040330 -12 612 RV3O RK3DSW KO95 001000 -3 436 RK3DSW ON5VV R-13 (x2) 001230 -17 893 RK3DSW DA0O 73 161600 -15 1295 R6FMM RK3DSW -06 040500 -24 1096 HK3W RK3DSW KO95
UTC dB Audio Message 204700 -3 2171 RK3DSW RD9M/3 R-16 204900 -17 839 R4HHN RK3DSW -08 (x2) 205030 -22 840 UB3WDA RK3DSW -11 205115 +5 649 RK3DSW UB3WDA 73 205330 +13 1305 RK3DSW RW3YS R-07 (x2) 210130 -20 858 CQ RK3DSW KO95 194445 -22 584 RA1WP RK3DSW -07 194600 -3 1782 RK3DSW RA1WP R-08 (x2) 180145 +1 2039 RK3DSW YO4NT -22 (x2) 174930 +11 496 RK3DSW R3GI R-11 (x2)
UTC dB Audio Message 044345 -1 702 R6KEE RK3DSW -14 (x2) 044445 +2 701 CQ RK3DSW KO95 (x2) 200915 -16 2043 RK3DSW BG7BVI RR73 201430 +6 2368 RK3DSW PY5XT R-07 (x2) 203330 +16 2657 RK3DSW DL1R JN58 (x6) 032515 -5 729 RK3DSW WV2B R-13 (x2)
UTC dB Audio Message 100215 -9 2696 RK3DSW RD7LC -09 114830 -10 642 OE4MTI RK3DSW -12 115145 -5 640 RK3DSW OK1FJN R+05 (x2) 155600 -17 1992 RK3DSW DN9LL R-21 085300 -7 2009 RK3DSW DL0DM R-14 (x4) 060730 -16 1913 RK3DSW LZ1AG R-03 (x2) 133430 +1 1234 RK3DSW LZ1EV R-25 (x4)
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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