SP9CKS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP9CKS, decoded by SO8OO in southeastern Poland. 74 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-08 and 2026-09-17.
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 74 FT8 messages attributed to SP9CKS as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (64%), followed by 80 m (23%) and 40 m (14%). Several six-hour UTC windows tied for the largest share (50%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-17 04:08 UTC
Observed FT8 message patterns
- Attributed sample
- 74 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -12 to +17 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 48.
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 SP9CKS 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 SP9CKS
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
- JN99 · 37 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 206 km (approx.)
- Last such locator decoded
- 2026-09-17 04:08 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 | SP9CKS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 04:06 | 80m | +9 / -5 | ON4MAP | -19 / -16 | 5 | ✓ Full exchange observed |
| 09-17 04:03 | 80m | +4 / +2 | DO1OAS | -10 / -8 | 8 | ✓ Full exchange observed |
| 09-16 05:59 | 40m | - / - | DL6AZ | +3 / - | 3 | ✓ Closing fragment |
| 09-16 05:58 | 40m | - / +6 | M8FQT | -6 / - | 2 | Partial capture |
| 09-16 05:57 | 40m | - / -12 | US1MM | +3 / - | 2 | ✓ Closing fragment |
| 09-16 05:53 | 40m | - / -7 | GJ0KYZ | -8 / - | 2 | ✓ Closing fragment |
| 08-30 06:08 | 20m | - / +2 | F1MXE | +3 / - | 3 | ✓ Closing fragment |
| 08-28 19:14 | 20m | - / - | TA4SSK | -1 / - | 3 | Partial capture |
| 08-28 19:12 | 20m | -8 / - | KQ4GYI | - / -23 | 4 | ✓ Closing fragment |
| 08-28 19:10 | 20m | -8 / - | N1JFF | - / - | 2 | Partial capture |
| 08-28 19:07 | 20m | -12 / - | MW7FKA | - / -12 | 4 | ✓ Closing fragment |
| 08-28 19:05 | 20m | -10 / - | WA2EIO | - / -7 | 2 | ✓ Closing fragment |
| 08-28 19:00 | 20m | - / -7 | OH3MB | -5 / - | 3 | ✓ Closing fragment |
| 08-28 19:00 | 20m | -16 / +10 | F4ACR | +3 / +2 | 8 | ✓ Full exchange observed |
| 08-27 18:31 | 20m | - / -12 | F4BYA | +8 / - | 11 | ✓ Closing fragment |
| 08-27 18:18 | 20m | - / - | M7INZ | -2 / - | 2 | ✓ Closing fragment |
| 08-27 18:03 | 20m | - / -4 | F4AXK | -8 / - | 7 | ✓ Closing fragment |
| 08-27 05:31 | 20m | -12 / - | VK2AAI | - / -21 | 3 | Partial capture |
| 08-27 05:30 | 20m | -12 / - | IK2ZJR | -16 / -6 | 3 | Partial capture |
| 08-27 05:23 | 20m | - / -13 | RK4CH | +4 / - | 5 | ✓ Closing fragment |
| 08-27 05:18 | 20m | - / -12 | EA5HM | -3 / - | 7 | ✓ Closing fragment |
| 08-27 05:15 | 20m | - / +8 | KK6UGA | -10 / - | 2 | ✓ Closing fragment |
| 08-27 04:56 | 20m | - / -3 | F1PBZ | +2 / - | 2 | ✓ Closing fragment |
| 08-24 05:18 | 20m | - / -16 | UA3GDJ | +2 / - | 3 | ✓ Closing fragment |
| 08-23 15:00 | 10m | - / 0 | IK7YZB | -10 / - | 2 | ✓ Closing fragment |
| 08-23 14:49 | 10m | - / -4 | PA1HGM | -10 / - | 2 | ✓ Closing fragment |
| 08-23 14:30 | 20m | - / - | G5EDW | -9 / - | 5 | ✓ Closing fragment |
| 08-23 06:52 | 20m | - / -3 | R3LDK | +4 / - | 4 | ✓ Closing fragment |
| 08-23 06:43 | 20m | - / -6 | F1ODM | +10 / - | 2 | ✓ Closing fragment |
| 08-23 06:40 | 20m | - / -11 | G0JEI | -18 / - | 2 | Partial capture |
| 08-23 06:40 | 20m | - / - | F5PZQ | -10 / - | 3 | ✓ Closing fragment |
| 08-23 06:38 | 20m | - / - | F4HQO | -10 / - | 2 | ✓ Closing fragment |
| 08-23 06:36 | 20m | - / -2 | PD9FLX | -8 / - | 3 | ✓ Closing fragment |
| 08-23 06:36 | 20m | - / -2 | UA3RBM | -8 / - | 4 | ✓ Closing fragment |
| 08-23 06:31 | 20m | - / +4 | PD0WL | -17 / - | 4 | ✓ Closing fragment |
| 08-23 06:29 | 20m | - / - | DL1EBW | -12 / - | 2 | ✓ Closing fragment |
| 08-23 06:28 | 20m | - / - | F4BYA | -7 / - | 4 | Partial capture |
| 08-23 06:17 | 20m | - / -5 | G0COG | -19 / - | 2 | ✓ Closing fragment |
| 08-19 19:21 | 20m | - / -10 | G5ANT | -21 / - | 3 | Partial capture |
| 08-18 19:33 | 40m | -8 / - | YO4LUP | - / -9 | 2 | ✓ Closing fragment |
| 08-18 19:30 | 40m | - / - | PF1B | -14 / - | 3 | Partial capture |
| 08-18 19:29 | 40m | -6 / -16 | LY5J | -12 / -13 | 3 | ✓ Full exchange observed |
| 08-18 19:27 | 40m | -9 / - | LA7KJ | - / -16 | 5 | ✓ Closing fragment |
| 08-18 12:08 | 20m | - / - | IZ6BYS | -17 / - | 2 | Partial capture |
| 08-18 12:01 | 20m | - / +8 | DL1UDO | -20 / - | 5 | ✓ Closing fragment |
| 08-18 10:51 | 20m | +16 / - | IK1MJK/P | - / -4 | 2 | ✓ Closing fragment |
| 08-18 10:50 | 20m | +12 / - | IZ2SXZ | -20 / -9 | 3 | ✓ Closing observed |
| 08-18 10:38 | 20m | - / -16 | SQ1RTU | -20 / - | 2 | ✓ Closing fragment |
| 08-18 10:28 | 20m | - / -2 | DK3TNA | -15 / - | 4 | ✓ Closing fragment |
| 08-18 10:26 | 20m | -11 / - | PE9JAN | -11 / - | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 040400 +2 1604 SP9CKS SN1A JO73 040430 -12 1821 SP9CKS DO1OAS JO51 (x2) 040515 +9 1820 CQ SP9CKS JN99 040530 -8 1822 SP9CKS DO1OAS JO51 040545 +3 1820 DO1OAS SP9CKS -08 040600 -9 1822 SP9CKS DO1OAS R+02 040615 +5 1820 DO1OAS SP9CKS RR73 040630 -10 1821 SP9CKS DO1OAS 73 040645 +9 1820 ON4MAP SP9CKS JN99 040700 -18 1373 SP9CKS ON4MAP -05 040715 +8 1820 ON4MAP SP9CKS R-16 040730 -20 1373 SP9CKS ON4MAP RR73 040745 +10 1820 ON4MAP SP9CKS 73 040815 +7 1820 DO2NM SP9CKS JN99
UTC dB Audio Message 193045 -13 955 SP9CKS PF1B JO22 (x3) 193300 -8 2691 YO4LUP SP9CKS -09 (x2) 055330 -8 2610 SP9CKS GJ0KYZ -07 (x2) 055700 +3 2610 SP9CKS US1MM R-12 (x2) 055800 -7 2610 SP9CKS M8FQT IO93 (x2) 055900 +3 2610 SP9CKS DL6AZ JO42 (x3) 034700 -24 1850 SP9CKS EB2EMZ R+02
UTC dB Audio Message 191030 -7 2633 N1JFF SP9CKS JN99 191100 -6 2632 CQ SP9CKS JN99 191200 -8 2633 KQ4GYI SP9CKS JN99 (x4) 191400 -9 2633 CQ SP9CKS JN99 (x2) 191445 -3 2633 SP9CKS TA4SSK KM57 191500 -12 2633 CQ SP9CKS JN99 191545 +0 2633 SP9CKS TA4SSK KM57 (x2) 060830 +5 2636 SP9CKS F1MXE JN05 (x3)
UTC dB Audio Message 190745 -10 2185 SP9CKS S55A JN65 (x2) 153930 -9 2698 SP9CKS OZ5AGJ JO47 154200 -1 1194 SP9CKS DN9DSP +21 (x2) 154400 -12 1293 SP9CKS DO1BKI -05 (x2) 154730 -17 2047 SP9CKS PD1ADA JO21 (x2) 144945 -9 2627 SP9CKS PA1HGM -04 (x2) 145815 -7 2627 SP9CKS PA3BMB 73 150015 -9 2673 SP9CKS IK7YZB +00 (x2)
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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