RK0SK — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving RK0SK, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 80m, 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-11-04.
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 90 FT8 messages attributed to RK0SK as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 80 m (18%) and 10 m (9%). Most decodes (61%) fell within the six-hour window 08:00-14:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-11-04 09:34 UTC
Observed FT8 message patterns
- Attributed sample
- 90 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -23 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 7.
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 RK0SK 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 RK0SK
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
- OO12 · 48 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 5,355 km (approx.)
- Last such locator decoded
- 2026-11-04 08:47 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 | RK0SK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 22:26 | 40m | - / -20 | IU8VUX | -6 / - | 2 | ✓ Closing fragment |
| 11-05 22:14 | 40m | - / -14 | RA6YDX | -15 / - | 2 | Partial capture |
| 11-05 22:07 | 40m | - / - | F4BYA | 0 / - | 3 | Partial capture |
| 11-05 21:47 | 40m | - / -20 | 9A3K | +13 / - | 3 | ✓ Closing fragment |
| 11-05 20:52 | 40m | - / -15 | EA3RR | +1 / - | 5 | ✓ Closing fragment |
| 11-05 20:50 | 40m | - / -16 | EA7ALL | -12 / - | 3 | Partial capture |
| 11-05 20:40 | 40m | - / - | EA3EDU | -16 / - | 2 | Partial capture |
| 11-05 20:28 | 80m | - / -18 | YO9HP | -3 / - | 2 | ✓ Closing fragment |
| 11-04 12:58 | 40m | - / -23 | R3VA | -11 / - | 2 | ✓ Closing fragment |
| 11-04 00:35 | 80m | - / -11 | R3UG | -1 / - | 3 | ✓ Closing fragment |
| 11-04 00:25 | 80m | - / -24 | IZ0MIT | +3 / - | 5 | ✓ Closing fragment |
| 11-04 00:17 | 80m | -18 / -19 | S50XX | +7 / -1 | 11 | Partial capture |
| 11-04 00:15 | 80m | -19 / - | YT5DL | +8 / -9 | 3 | Partial capture |
| 11-04 00:12 | 80m | - / -13 | 9A4ZM | +17 / - | 3 | ✓ Closing fragment |
| 11-04 00:11 | 80m | - / -15 | UA9CK | -2 / - | 2 | Partial capture |
| 11-04 00:04 | 80m | - / -19 | S50XX | +12 / - | 13 | Partial capture |
| 11-03 23:55 | 80m | - / - | S50XX | +11 / - | 7 | Partial capture |
| 11-03 23:48 | 80m | -17 / - | UA4NF | - / -6 | 2 | Partial capture |
| 11-03 23:45 | 80m | -15 / -19 | EW6FL | +7 / - | 7 | ✓ Closing observed |
| 11-03 23:45 | 80m | - / -8 | EA1IOK | -4 / - | 4 | Partial capture |
| 11-03 23:41 | 80m | - / - | RL3QGD | -5 / - | 4 | Partial capture |
| 11-03 23:39 | 80m | - / -18 | DK9WI | +9 / - | 3 | ✓ Closing fragment |
| 11-03 23:37 | 80m | - / -16 | YL2KF | -5 / - | 3 | ✓ Closing fragment |
| 11-03 23:30 | 80m | - / -14 | F1PBZ | +14 / - | 3 | ✓ Closing fragment |
| 11-03 17:13 | 80m | - / - | F4EZJ | +4 / - | 2 | ✓ Closing fragment |
| 11-03 16:34 | 80m | - / -15 | OK1FRG | +9 / - | 3 | ✓ Closing fragment |
| 11-03 16:27 | 80m | - / -18 | R3ZMM | +2 / - | 3 | ✓ Closing fragment |
| 11-03 16:14 | 80m | - / - | R9FFJ | -15 / - | 2 | ✓ Closing fragment |
| 11-03 16:11 | 80m | - / -20 | IK6GPZ | +10 / - | 3 | Partial capture |
| 11-03 16:11 | 80m | - / -22 | RA3PN | +12 / - | 3 | ✓ Closing fragment |
| 11-03 16:07 | 80m | - / -24 | PA3FPQ | -6 / - | 4 | ✓ Closing fragment |
| 11-03 16:04 | 80m | -16 / +6 | RT6C | +6 / - | 4 | ✓ Closing observed |
| 11-03 16:03 | 80m | - / -16 | RA3ZDU | -6 / - | 2 | ✓ Closing fragment |
| 11-03 16:02 | 80m | - / -15 | RQ3M | +2 / - | 2 | ✓ Closing fragment |
| 11-03 16:00 | 80m | - / - | PA3FPQ | -1 / - | 3 | Partial capture |
| 11-03 15:56 | 80m | - / -15 | R5DT | +4 / - | 3 | ✓ Closing fragment |
| 11-03 15:46 | 80m | - / -7 | RU3GF | +16 / - | 2 | ✓ Closing fragment |
| 11-03 15:42 | 80m | - / - | DL3DQL | +8 / - | 2 | Partial capture |
| 11-03 15:42 | 80m | - / -14 | HB9CXZ | -2 / - | 4 | ✓ Closing fragment |
| 11-03 15:28 | 80m | - / -24 | F8FKI | +10 / - | 10 | ✓ Closing fragment |
| 11-03 15:18 | 80m | - / - | OZ5NJ | -2 / - | 4 | Partial capture |
| 11-03 15:11 | 80m | - / - | UA4PDJ | -6 / - | 2 | ✓ Closing fragment |
| 11-01 13:59 | 40m | - / - | UB6ZDJ | -5 / - | 2 | Partial capture |
| 11-01 13:50 | 40m | - / - | R4HM | -1 / - | 16 | Partial capture |
| 11-01 13:50 | 40m | - / +6 | RO2Z | -8 / - | 4 | ✓ Closing fragment |
| 11-01 13:47 | 40m | - / -18 | R2ZCA | -10 / - | 2 | ✓ Closing fragment |
| 11-01 13:41 | 40m | - / - | R4HM | 0 / - | 4 | Partial capture |
| 11-01 13:40 | 40m | - / -16 | RG6ZF | -21 / - | 2 | Partial capture |
| 11-01 13:34 | 40m | - / -13 | UA3GJM | -13 / - | 4 | ✓ Closing fragment |
| 11-01 13:31 | 40m | - / -18 | RW4CB | -12 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205300 +2 851 RK0SK EA3RR JN11 205330 -11 1315 RK0SK EA7ALL R-16 205330 +3 851 RK0SK EA3RR R-15 (x2) 214715 +12 2260 RK0SK 9A3K JN65 (x3) 220730 +3 2732 RK0SK F4BYA JN19 (x3) 221230 -20 1109 RK0SK R4FDK 73 221430 -16 1611 RK0SK RA6YDX LN04 (x2) 222630 -5 720 RK0SK IU8VUX R-20 (x2)
UTC dB Audio Message 002130 +12 382 RK0SK S50XX R-19 (x3) 002500 -7 383 RK0SK IZ0MIT JN61 (x5) 003500 +7 318 RK0SK R3UG KO98 (x3) 202800 -6 2261 RK0SK YO9HP -18 (x2) 202830 -14 1534 RK0SK R9FE LO76 203400 +2 1529 RK0SK RO1M KO59
UTC dB Audio Message 084600 -17 1319 RK0SK RK1AQ R-04 072330 -24 1664 RK0SK RA9AAA R+02 082330 -8 553 RK0SK R8DV R-04 (x2) 095415 -21 1596 RK0SK CR7BUW IM58 074115 +4 2882 RK0SK RA4NCC LO68 083415 -15 872 EA3CUU RK0SK RR73 083515 -13 872 SP9AFC RK0SK -03 083745 -15 872 CQ RK0SK OO12 a1 (x5) 093430 -24 1594 RK0SK CR7BUW IM58 093445 -15 871 DO1FZL RK0SK -08
UTC dB Audio Message 054945 -3 2687 RK0SK RY3D R-07 094700 -19 2103 RK0SK <...> R-08 095730 -10 2699 RK0SK R3TY LO25 134915 -9 1138 RK0SK LZ1ZF R-13 (x2) 150030 -6 3011 LZ1ZF RK0SK -01 061445 -2 780 RK0SK R4FDD RR73 062630 -9 780 RK0SK R9FEM LO78 040915 -8 2321 RK0SK RD9M/3 -21 (x2) 041145 -5 2145 RK0SK RD4HX LO53 (x3) 041815 -21 2144 RK0SK R2GBR -19 042530 -24 2145 CQ RK0SK OO12
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee