SP1RKT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP1RKT, decoded by SO8OO in southeastern Poland. 765 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 20 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-08.
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 765 FT8 messages attributed to SP1RKT as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (68%), followed by 60 m (13%) and 40 m (10%). Most decodes (88%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +7 dB.
Overview
Bands
Last attributed message: 2026-09-08 21:11 UTC
Observed FT8 message patterns
- Attributed sample
- 765 messages
- Active dates
- 20 UTC dates
- Estimated median S/N
- +7 dB
- Estimated 10th-90th percentile
- -9 to +15 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 62, strong (≥ -8 dB) 683.
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 SP1RKT 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 SP1RKT
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
- JO84 · 464 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 603 km (approx.)
- Last such locator decoded
- 2026-09-08 21:11 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 | SP1RKT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 21:10 | 80m | +8 / - | R9CS/P | - / +5 | 4 | Partial capture |
| 09-08 18:57 | 40m | -4 / - | IH9/IT9JUI | - / - | 2 | Partial capture |
| 09-08 18:26 | 80m | - / +1 | SP100PKP | +7 / - | 3 | Partial capture |
| 09-08 18:25 | 80m | +11 / - | R1943OD | - / +1 | 6 | Partial capture |
| 09-08 18:01 | 40m | -5 / 0 | US2UM | +4 / +6 | 5 | ✓ Full exchange observed |
| 09-08 17:59 | 40m | 0 / - | DH1AHL/P | - / -1 | 3 | Partial capture |
| 09-08 14:12 | 40m | -8 / - | SN100PKP | - / -16 | 4 | Partial capture |
| 09-08 14:10 | 40m | -12 / - | SN31ROT | - / - | 2 | Partial capture |
| 09-08 14:05 | 40m | -19 / - | SN31ROT | - / 0 | 2 | Partial capture |
| 09-07 21:02 | 40m | 0 / - | D2ACE | - / - | 10 | Partial capture |
| 09-07 21:00 | 40m | -8 / - | YU65AEC | - / - | 4 | Partial capture |
| 09-07 20:56 | 60m | -10 / - | G0AZH | -10 / -3 | 4 | ✓ Closing observed |
| 09-07 20:52 | 60m | -12 / - | Z68BR | - / - | 6 | Partial capture |
| 09-07 20:50 | 60m | -14 / - | OZ5VO | - / -10 | 2 | ✓ Closing fragment |
| 09-07 20:48 | 60m | -11 / - | HA1DCQ | - / - | 3 | Partial capture |
| 09-07 20:47 | 60m | -7 / -1 | IZ0MQN | -14 / -7 | 5 | ✓ Full exchange observed |
| 09-07 20:43 | 60m | -9 / -10 | DL3HN | -12 / -6 | 6 | ✓ Full exchange observed |
| 09-07 20:42 | 60m | -6 / - | G3UHU | - / - | 3 | Partial capture |
| 09-07 20:40 | 60m | -6 / -13 | G5BOB | -8 / -9 | 6 | ✓ Full exchange observed |
| 09-07 20:39 | 60m | -7 / +8 | SQ6JFJ | -4 / +5 | 4 | ✓ Full exchange observed |
| 09-07 20:37 | 60m | -9 / -7 | IW4EGP | -9 / -3 | 6 | ✓ Full exchange observed |
| 09-07 20:35 | 60m | -11 / -14 | DG1KFR | -6 / +8 | 3 | ✓ Full exchange observed |
| 09-07 20:30 | 60m | -7 / -15 | EG1PDA | -16 / - | 5 | ✓ Closing observed |
| 09-07 20:27 | 60m | -9 / - | G0IOW | - / -10 | 3 | Partial capture |
| 09-07 20:26 | 60m | -11 / - | MM0HVU | - / - | 2 | ✓ Closing fragment |
| 09-07 20:24 | 60m | -9 / - | G0AZH | - / - | 3 | Partial capture |
| 09-07 20:22 | 60m | -8 / -3 | DL3KR | -8 / -9 | 7 | ✓ Full exchange observed |
| 09-07 20:20 | 60m | -5 / - | UN9LEI | -15 / -6 | 4 | ✓ Closing observed |
| 09-07 20:15 | 60m | -6 / - | D44TWO | - / - | 5 | Partial capture |
| 09-07 20:10 | 60m | -3 / - | D44TWO | - / - | 4 | Partial capture |
| 09-07 20:07 | 60m | -7 / +1 | DL2AOM | -19 / -2 | 2 | Partial capture |
| 09-07 20:03 | 60m | -8 / - | D44TWO | - / - | 7 | Partial capture |
| 09-07 19:50 | 60m | +3 / -12 | SP5JMA | +8 / - | 4 | ✓ Closing observed |
| 09-07 19:50 | 60m | 0 / - | DL9KM | - / -14 | 7 | ✓ Closing fragment |
| 09-07 19:48 | 60m | -6 / -5 | F5MYK | -14 / -3 | 4 | ✓ Full exchange observed |
| 09-07 19:43 | 60m | 0 / -3 | ON6LEO | +4 / - | 6 | ✓ Full exchange observed |
| 09-07 19:42 | 60m | -6 / +2 | OH3GBW | +2 / +3 | 5 | ✓ Full exchange observed |
| 09-07 19:40 | 60m | -1 / -8 | PA2A | +3 / +1 | 5 | ✓ Full exchange observed |
| 09-07 19:37 | 80m | +5 / 0 | SQ1X | -4 / +7 | 5 | ✓ Full exchange observed |
| 09-07 19:30 | 80m | +9 / - | AM42SDC | - / +3 | 3 | Partial capture |
| 09-07 19:21 | 80m | +18 / - | DL80BOCH | - / - | 2 | Partial capture |
| 09-07 19:10 | 80m | +9 / - | SN100PKP | - / - | 3 | Partial capture |
| 09-07 19:04 | 80m | - / +6 | R3LDK | +7 / - | 3 | Partial capture |
| 09-07 19:03 | 80m | +11 / -13 | SQ1RTU | +2 / -1 | 7 | ✓ Full exchange observed |
| 09-07 19:03 | 80m | +10 / - | RX1AB | -17 / - | 7 | ✓ Closing observed |
| 09-07 19:02 | 80m | +9 / -9 | RK6OQ | +6 / - | 4 | ✓ Closing observed |
| 09-07 18:44 | 80m | +12 / - | SP100PKP | - / +5 | 9 | Partial capture |
| 09-07 18:43 | 80m | +12 / - | E74MW | - / - | 2 | Partial capture |
| 09-07 18:34 | 40m | -3 / - | OL900LTV | - / -14 | 10 | Partial capture |
| 09-07 18:33 | 40m | -2 / - | UA3UBV/1 | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182600 +10 1814 R1943OD SP1RKT JO84 (x2) 182645 +7 1410 SP1RKT SP100PKP +01 182700 +13 1814 R1943OD SP1RKT JO84 182715 +7 1410 SP1RKT SP100PKP +01 182730 +9 1814 R1943OD SP1RKT JO84 182745 +8 1410 SP1RKT SP100PKP +04 182800 +13 1814 R1943OD SP1RKT R+01 183730 +16 2204 SP1RKT 3Z100PKP +04 183745 +12 1814 SP100PKP SP1RKT R+09 183800 +19 2204 SP1RKT RR73; OE3ZIO <...> -12 211015 +5 2074 R9CS/P SP1RKT JO84 (x4)
UTC dB Audio Message 003845 +10 1697 SP1RKT OK4YL -15 (x2) 200900 -2 904 SP1RKT SP2FWC -07 (x2) 201100 -10 1447 SP1RKT DB3OI -17 (x3) 201230 -6 1869 SP1RKT ES2AJ -18 201415 -8 2182 SP1RKT OH3NXW -13 (x2) 201645 -5 1228 SP1RKT SP2LLP -01 (x2) 192430 +2 1346 SP1RKT HF100PKP -11 195700 -13 1858 Z31PM SP1RKT JO84 210730 +16 900 SP1RKT RR73; SQ3LMR <...> +02
UTC dB Audio Message 141145 -12 2113 SN31ROT SP1RKT JO84 141215 -12 2113 <SN100PKP> SP1RKT JO84 (x4) 175930 +1 1444 DH1AHL/P SP1RKT JO84 (x3) 180145 +2 1443 SP1RKT US2UM KO50 180230 -1 1444 US2UM SP1RKT +06 180245 +4 1443 SP1RKT US2UM R+00 180300 -9 1443 US2UM SP1RKT RR73 180315 +6 1442 SP1RKT US2UM 73 185715 -1 2451 IH9/IT9JUI SP1RKT JO84 (x2)
UTC dB Audio Message 204945 -11 1417 HA1DCQ SP1RKT JO84 205045 -12 1417 OZ5VO SP1RKT R-10 (x2) 205215 -9 1417 Z68BR SP1RKT JO84 (x6) 205545 -9 1417 CQ SP1RKT JO84 (x2) 205630 -10 580 SP1RKT G0AZH IO83 205645 -9 1417 G0AZH SP1RKT -03 (x2) 205730 -11 579 SP1RKT G0AZH 73
UTC dB Audio Message 154230 -4 1978 SP1RKT IQ9BH +09 (x2) 154430 -1 2016 SP1RKT IQ9USG RR73 154530 -2 327 SP1RKT <...> -06 154800 +1 943 SP1RKT IQ9BF -24 (x2) 113315 -5 2102 SP1RKT IQ7KM +08 (x2) 114300 -21 1368 SP1RKT IQ6PE +02 (x2) 181045 -8 1785 <...> SP1RKT R-01 181345 -5 1785 II7MGBA SP1RKT JO84 (x2) 181445 -11 1785 <II7MGFG> SP1RKT JO84 (x2)
UTC dB Audio Message 122745 +15 2538 SP1RKT IQ0VT +05 (x2) 123115 +13 2776 SP1RKT IQ4JO +03 (x2) 184430 -12 2012 SP1RKT CT3MD +11 (x2) 102230 -20 1902 SP1RKT 5B4AMX RR73
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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