RK8W — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RK8W, decoded by SO8OO in southeastern Poland. 434 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 61 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-22.
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 434 FT8 messages attributed to RK8W as the transmitting token by decoded message structure across 61 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 20 m (27%) and 160 m (10%). The busiest six-hour window was 16:00-22:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-22 01:42 UTC
Observed FT8 message patterns
- Attributed sample
- 434 messages
- Active dates
- 61 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -15 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 40, moderate (-15 to -9 dB) 145, strong (≥ -8 dB) 249.
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 RK8W 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 RK8W
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
- LO73 · 270 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,300 km (approx.)
- Last such locator decoded
- 2026-09-22 01:42 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 | RK8W S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-22 01:42 | 160m | - / -17 | EA1CQ | -15 / - | 3 | Partial capture |
| 09-22 01:04 | 160m | -18 / -17 | RN7A | -5 / -21 | 8 | ✓ Full exchange observed |
| 09-22 01:02 | 160m | -14 / - | SM2LKW | -6 / -16 | 3 | ✓ Closing observed |
| 09-22 01:01 | 160m | -12 / -14 | IW4AOT | +2 / -19 | 4 | ✓ Full exchange observed |
| 09-22 00:55 | 160m | -12 / -6 | UA3AGW | +8 / - | 3 | ✓ Closing observed |
| 09-21 16:02 | 160m | - / -17 | RD7X | -22 / - | 2 | ✓ Closing fragment |
| 09-21 01:32 | 160m | -11 / - | UD4F | - / +1 | 2 | Partial capture |
| 09-20 17:23 | 80m | - / -11 | RZ6ALZ | -1 / - | 3 | ✓ Closing fragment |
| 09-20 04:18 | 40m | - / -2 | RN3TT | -15 / - | 2 | ✓ Closing fragment |
| 09-20 01:45 | 80m | -2 / -3 | RV3YN | +2 / -5 | 5 | ✓ Full exchange observed |
| 09-19 18:02 | 80m | -8 / - | R3RRC/P | - / - | 2 | Partial capture |
| 09-16 14:23 | 40m | - / -6 | UB4LDD | -9 / - | 2 | ✓ Closing fragment |
| 09-14 19:59 | 160m | - / -9 | R5AV | +1 / - | 2 | ✓ Closing fragment |
| 09-14 16:10 | 40m | - / -15 | R9OOF | -6 / - | 2 | Partial capture |
| 09-14 16:08 | 40m | -21 / -3 | R1QF/P | -14 / -3 | 3 | ✓ Full exchange observed |
| 09-14 14:18 | 40m | - / - | R6ZL | -19 / - | 3 | Partial capture |
| 09-14 14:16 | 40m | - / -2 | R70SAB | -6 / - | 2 | ✓ Closing fragment |
| 09-13 01:17 | 80m | 0 / - | VP2MAA | - / - | 11 | Partial capture |
| 09-11 17:43 | 80m | -2 / - | RA3RPW | - / - | 3 | Partial capture |
| 09-11 17:40 | 80m | -2 / - | OH3NXW | +14 / -10 | 4 | Partial capture |
| 09-08 18:18 | 80m | -6 / -11 | SP1BMK | +12 / -8 | 3 | Partial capture |
| 09-08 18:17 | 80m | -8 / - | RQ3D | - / -9 | 2 | ✓ Closing fragment |
| 09-08 15:38 | 80m | -3 / +1 | RA4FEA | +2 / - | 5 | ✓ Closing observed |
| 09-08 15:36 | 80m | -5 / - | R8CIS | - / - | 3 | ✓ Closing fragment |
| 09-07 17:56 | 160m | -7 / - | R7OQ | - / - | 2 | Partial capture |
| 09-06 19:10 | 160m | -10 / - | R9CS/P | - / - | 2 | Partial capture |
| 09-06 16:44 | 80m | -11 / - | R9CS/P | - / -25 | 9 | ✓ Closing fragment |
| 09-06 03:04 | 40m | - / -15 | RA6FRI | +1 / - | 2 | ✓ Closing fragment |
| 09-06 01:23 | 40m | -7 / -7 | RD7O | +2 / -4 | 5 | ✓ Full exchange observed |
| 09-06 01:22 | 40m | -8 / - | Z68BR | - / -12 | 2 | ✓ Closing fragment |
| 09-05 17:13 | 80m | 0 / -9 | S51DI | +11 / -14 | 5 | ✓ Full exchange observed |
| 09-05 17:11 | 80m | 0 / - | RA3GK | - / - | 2 | Partial capture |
| 09-05 17:08 | 80m | -2 / - | RA4CQW/P | -20 / -1 | 5 | ✓ Full exchange observed |
| 09-05 17:06 | 80m | -1 / - | R1943OD | - / 0 | 2 | Partial capture |
| 09-05 04:42 | 40m | - / -13 | R1943OD | +5 / - | 2 | Partial capture |
| 09-04 01:57 | 80m | -9 / - | PT7YV | - / - | 2 | Partial capture |
| 09-04 01:34 | 80m | +2 / - | PT7YV | - / - | 3 | Partial capture |
| 09-04 01:18 | 80m | -2 / - | F4BPO | - / -14 | 3 | ✓ Closing fragment |
| 09-04 01:02 | 80m | +4 / - | RD9U | - / -14 | 3 | ✓ Closing fragment |
| 09-04 01:01 | 80m | -2 / -6 | OR7K | -3 / -7 | 4 | ✓ Full exchange observed |
| 09-04 00:57 | 80m | +8 / - | UA9YHA | - / -7 | 3 | ✓ Closing fragment |
| 09-04 00:54 | 80m | +2 / - | DO8JB | -10 / -14 | 3 | ✓ Closing observed |
| 09-04 00:52 | 80m | +1 / - | UA3IDQ | - / -10 | 3 | Partial capture |
| 09-03 23:48 | 80m | +5 / - | DL1UDO | - / - | 2 | Partial capture |
| 09-03 23:45 | 80m | +1 / -18 | KP4AA | -16 / -12 | 6 | ✓ Full exchange observed |
| 09-03 23:42 | 80m | 0 / - | <...> | - / -14 | 2 | Partial capture |
| 09-03 23:40 | 80m | -1 / - | ON5WR | - / - | 3 | Partial capture |
| 09-03 23:14 | 160m | - / - | DL3AMW | -12 / - | 5 | Partial capture |
| 09-03 16:11 | 160m | - / -7 | RA3S | -13 / - | 3 | ✓ Closing fragment |
| 09-03 03:46 | 40m | - / -15 | UA3RBM | -16 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 010430 -7 2347 RK8W RN7A RR73 010445 -18 2272 RN7A RK8W 73 010500 -3 2347 RK8W RN7A RR73 010515 -19 2272 RN7A RK8W 73 010530 -2 2346 RK8W RN7A RR73 (x2) 011645 -5 2272 CQ RK8W LO73 (x5) 014230 -17 2371 RK8W EA1CQ -17 014245 -3 2371 CQ RK8W LO73 014300 -11 2371 RK8W EA1CQ -17 (x2)
UTC dB Audio Message 012345 +2 2977 7X5CY RK8W LO73 175145 -11 3005 RI1FJZ RK8W LO73 180215 -9 2989 R3RRC/P RK8W LO73 (x2) 014500 -4 2695 RV3YN RK8W LO73 014515 +2 2288 RK8W RV3YN -03 014530 +0 2695 RV3YN RK8W R-05 014545 +1 2288 RK8W RV3YN RR73 014600 -3 2695 RV3YN RK8W 73 171545 -10 2778 RI1FJZ RK8W LO73 (x2) 172300 -3 2210 RK8W RZ6ALZ LN06 (x3) 015630 -5 2439 CE8EIO RK8W LO73
UTC dB Audio Message 141645 -5 2238 RK8W R70SAB -02 (x2) 141815 -18 1539 RK8W R6ZL (x3) 160815 -15 2231 RK8W R1QF/P -03 160830 -21 2141 R1QF/P RK8W R-03 160845 -14 2231 RK8W R1QF/P RR73 161015 -9 693 RK8W R9OOF -15 (x2) 142315 -7 834 RK8W UB4LDD -06 (x2) 024900 -14 2425 OA4ENG RK8W -10 041815 -12 1150 RK8W RN3TT R-02 (x2)
UTC dB Audio Message 031415 -3 3003 <...> RK8W LO73 (x2) 031515 -11 2179 R8QA/M RK8W LO73 (x2) 031615 -11 2010 <...> RK8W R-08 (x5) 091445 -14 2745 RA1NBG RK8W LO73 023345 +0 2933 <...> RK8W LO73 (x2) 023430 -5 832 RK8W <...> +00 023445 +2 2933 <...> RK8W R-13 050015 -2 1083 RK8W RW6A/P -07
UTC dB Audio Message 092045 -10 2348 RK8W DL9KM R-06 (x2) 092115 -1 2703 RK8W DH2PC JN49 103630 -19 1796 RK8W F4FSY RR73 125900 -17 2389 RK8W R7OF RR73 111330 -24 1653 RK8W R3EDI RR73 074830 -8 325 RK8W RU4AJ -09 083645 -12 1432 RK8W R3OR -11 (x2) 135600 +9 2906 RK8W RT6Z -10 (x2) 171315 -20 1404 RK8W RA3LCX R-14 172115 -10 395 RK8W R3LC KO64 191900 -2 2879 RK8W RZ3DW -08 082200 -22 1987 RK8W RK6OV 73
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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